2018-10-01 09:52:17 -05:00
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# -*- coding: utf-8 -*-
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import copy
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import datetime
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Support for mixing real pads & symbolic core. Wrapper around s2r.
* Change: In Hurricane::Error constructors disable the backtrace generation.
(*very* slow).
* Change: In Hurricane::Library::getHierarchicalname(), more compact
naming. Remove the name of the root library.
* New: In Hurricane::Net, new type "FUSED", for component with no net.
More efficient than having one net for each.
* Change: In CellViewer, BreakpointWidget, use Angry Birds icons.
* Change: In CellWidget::State, use the hierarchical name (cached) as key
to the state. This allow to load two cells with the same name but from
different libraries in the widget history.
* Change: In PyGraphics, export "isEnabled()" and "isHighDpi()" functions.
* Change: In CRL/etc/symbolic/cmos/plugin.conf, and
CRL/etc/common/plugin.conf use the physical dimensions converters.
* Change: In CRL/etc/symbolic/cmos/technology.conf, make the GDS layer
table coherent with the default Alliance cmos.rds.
* New: CRL/python/helpers/io.py, put ErrorMessage new implementation here,
along with a new ErrorWidget written in PyQt4. It seems finally that
PyQt4 can be used alongside Coriolis Qt widgets.
New ErrorMessage.catch() static function to manage all exceptions
in except clauses.
* Change: In CRL/python/helpers/, no longer use ErrorMessage.wrapPrint(),
directly print it.
Rewrite the utilities to display Python stack traces "textStacktrace()"
and "showStacktrace()".
* Change: In CRL::AllianceFramework, shorten the names of the libraries.
* Change: In CRL::ApParser & CRL::ApDriver, more accurate translation between
Alliance connectors (C record) and Hurricane::Pin objects. Pin are no
longer made square but thin and oriented in the connecting direction.
Use the new fused net for unnamed components.
* New: In CRL::GdsParser, implementation of SREF parsing, i.e. instances.
Due to the unordered nature of the GDS stream, instances creation are
delayed until the whole stream has been parsed and only then are they
created.
For the sake of reading back Alliance s2r GDS, we assume that any
TEXT following a boundary is the Net name the boundary (component)
belongs to.
Create abutment box for Cells, computed from the bounding box, so
the Hurricane QuadTree could work properly.
Make use of the fused net for unnamed components.
* New: In Cumulus/plugins/chip, complete rewrite of the I/O pad management.
Now we can mix real (foundry) pads and a symbolic core.
To cleanly support the de-coupling between the real part and the
symbolic one we introduce a new intermediary hierarchical level, the
corona. We have now:
Chip --> Pads + Corona --> Core.
At chip level (and if we are using real pads) the layout is fully
real (excepting the corona).
The Corona contains everything that is symbolic. It has symbolic
wires extending outward the abutment box to make contact with the
real wires coming from the pads.
In the pad ring we can use corners instances (or not), pad spacers
or directly draw wires between connectors ring pads.
Provide two flavors: placement only or full place & route.
WARNING: If routing in a second step, *do not route* the *Chip* but
the *Corona*.
* Change: In Cumulus/plugins/clocktree, give the modified Cell an
additional extension of "_cts" (Clock Tree Synthesis) instead of
"_clocked", to follow the common convention.
* New: In cumulus/plugins/S2R.py, encapsulate call to Alliance S2R and
reload the translated Cell in the editor.
* New: In cumulus/plugins/core2chip, provide an utility to automatically
create a chip from a core. To work this plugins must have a basic
understanding of the pad functionalities which may differs from
foundry to foundry. So a base class CoreToChip is created, then for
each supported pad foundry a derived class is added. Currently we
support AMS c35b4 and Alliance symbolic cmos.
* Bug: In Anabatic::Configuration, read the right configuration parameter
"anabatic.topRoutinglayer" (Katana), and not the one for Katabatic...
* Change: In Unicorn/cgt.py, process the plugins in alphabetical order
to ensure a reproductible ordering of the menus...
2019-05-22 07:34:32 -05:00
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from Hurricane import DataBase
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from Hurricane import UpdateSession
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from Hurricane import DbU
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from Hurricane import Box
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from Hurricane import Net
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from Hurricane import Horizontal
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from Hurricane import Vertical
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from Hurricane import Contact
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from Hurricane import Pad
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from Hurricane import NetExternalComponents
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from CRL import AllianceFramework
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2018-10-01 09:52:17 -05:00
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import Constant
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import helpers
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Support for mixing real pads & symbolic core. Wrapper around s2r.
* Change: In Hurricane::Error constructors disable the backtrace generation.
(*very* slow).
* Change: In Hurricane::Library::getHierarchicalname(), more compact
naming. Remove the name of the root library.
* New: In Hurricane::Net, new type "FUSED", for component with no net.
More efficient than having one net for each.
* Change: In CellViewer, BreakpointWidget, use Angry Birds icons.
* Change: In CellWidget::State, use the hierarchical name (cached) as key
to the state. This allow to load two cells with the same name but from
different libraries in the widget history.
* Change: In PyGraphics, export "isEnabled()" and "isHighDpi()" functions.
* Change: In CRL/etc/symbolic/cmos/plugin.conf, and
CRL/etc/common/plugin.conf use the physical dimensions converters.
* Change: In CRL/etc/symbolic/cmos/technology.conf, make the GDS layer
table coherent with the default Alliance cmos.rds.
* New: CRL/python/helpers/io.py, put ErrorMessage new implementation here,
along with a new ErrorWidget written in PyQt4. It seems finally that
PyQt4 can be used alongside Coriolis Qt widgets.
New ErrorMessage.catch() static function to manage all exceptions
in except clauses.
* Change: In CRL/python/helpers/, no longer use ErrorMessage.wrapPrint(),
directly print it.
Rewrite the utilities to display Python stack traces "textStacktrace()"
and "showStacktrace()".
* Change: In CRL::AllianceFramework, shorten the names of the libraries.
* Change: In CRL::ApParser & CRL::ApDriver, more accurate translation between
Alliance connectors (C record) and Hurricane::Pin objects. Pin are no
longer made square but thin and oriented in the connecting direction.
Use the new fused net for unnamed components.
* New: In CRL::GdsParser, implementation of SREF parsing, i.e. instances.
Due to the unordered nature of the GDS stream, instances creation are
delayed until the whole stream has been parsed and only then are they
created.
For the sake of reading back Alliance s2r GDS, we assume that any
TEXT following a boundary is the Net name the boundary (component)
belongs to.
Create abutment box for Cells, computed from the bounding box, so
the Hurricane QuadTree could work properly.
Make use of the fused net for unnamed components.
* New: In Cumulus/plugins/chip, complete rewrite of the I/O pad management.
Now we can mix real (foundry) pads and a symbolic core.
To cleanly support the de-coupling between the real part and the
symbolic one we introduce a new intermediary hierarchical level, the
corona. We have now:
Chip --> Pads + Corona --> Core.
At chip level (and if we are using real pads) the layout is fully
real (excepting the corona).
The Corona contains everything that is symbolic. It has symbolic
wires extending outward the abutment box to make contact with the
real wires coming from the pads.
In the pad ring we can use corners instances (or not), pad spacers
or directly draw wires between connectors ring pads.
Provide two flavors: placement only or full place & route.
WARNING: If routing in a second step, *do not route* the *Chip* but
the *Corona*.
* Change: In Cumulus/plugins/clocktree, give the modified Cell an
additional extension of "_cts" (Clock Tree Synthesis) instead of
"_clocked", to follow the common convention.
* New: In cumulus/plugins/S2R.py, encapsulate call to Alliance S2R and
reload the translated Cell in the editor.
* New: In cumulus/plugins/core2chip, provide an utility to automatically
create a chip from a core. To work this plugins must have a basic
understanding of the pad functionalities which may differs from
foundry to foundry. So a base class CoreToChip is created, then for
each supported pad foundry a derived class is added. Currently we
support AMS c35b4 and Alliance symbolic cmos.
* Bug: In Anabatic::Configuration, read the right configuration parameter
"anabatic.topRoutinglayer" (Katana), and not the one for Katabatic...
* Change: In Unicorn/cgt.py, process the plugins in alphabetical order
to ensure a reproductible ordering of the menus...
2019-05-22 07:34:32 -05:00
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from helpers.io import ErrorMessage as Error
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from helpers import trace
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from Analog import Device
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2018-10-01 09:52:17 -05:00
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import oroshi
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#helpers.setTraceLevel( 100 )
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def traceMT ( mt ):
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trace( 100, '+', '\tMeta-Transistor Topological Datas\n' )
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trace( 100, '\t +-------------------------------------------------+\n' )
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trace( 100, '\t | Gate name | %20s |\n' % mt['gate'] )
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trace( 100, '\t +------------+------------------------------------+\n' )
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trace( 100, '\t | NF | %10d |\n' % mt['NF'] )
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trace( 100, '\t | MIN | %10r |\n' % mt['MIN'] )
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trace( 100, '\t +------------+-----------------------+------------+\n' )
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trace( 100, '\t | Style | NSint | %10d |\n' % mt['style.NSint'] )
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trace( 100, '\t | | DSint | %10d |\n' % mt['style.NDint'] )
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trace( 100, '\t | | NSend | %10d |\n' % mt['style.NSend'] )
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trace( 100, '\t | | DSend | %10d |\n' % mt['style.NDend'] )
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trace( 100, '\t +------------+---------+-------------+------------+\n' )
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trace( 100, '\t | Stress | BSIM4 | SAeff | %10.2g |\n' % mt['stress.SAeff_Bsim4' ] )
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trace( 100, '\t | | | SBeff | %10.2g |\n' % mt['stress.SBeff_Bsim4' ] )
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trace( 100, '\t | | | SAinv | %10.2g |\n' % mt['stress.SAinv_Bsim4' ] )
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trace( 100, '\t | | | SBinv | %10.2g |\n' % mt['stress.SBinv_Bsim4' ] )
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trace( 100, '\t | | | SBinv | %10.2g |\n' % mt['stress.SBinv_Bsim4' ] )
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trace( 100, '\t | | | alpha | %10.2g |\n' % mt['stress.alpha' ] )
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trace( 100, '\t | | | alphaInv | %10.2g |\n' % mt['stress.alphaInv' ] )
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trace( 100, '\t | | | LODeffect | %10.2g |\n' % mt['stress.LODeffect' ] )
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trace( 100, '\t | +---------+-------------+------------+\n' )
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trace( 100, '\t | | Crolles | SAeff | %10.2g |\n' % mt['stress.SAeff_Crolles'] )
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trace( 100, '\t | | | SBeff | %10.2g |\n' % mt['stress.SBeff_Crolles'] )
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trace( 100, '\t | | | SAinv | %10.2g |\n' % mt['stress.SAinv_Crolles'] )
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trace( 100, '\t | | | SBinv | %10.2g |\n' % mt['stress.SBinv_Crolles'] )
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trace( 100, '\t | | | po2actEff | %10.2g |\n' % mt['stress.po2actEff_Crolles'] )
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trace( 100, '\t +------------+---------+-------------+------------+\n' )
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trace( 100, '\t | Parasitics | ASeff %10.2g m2 |\n' % mt['parasitics.ASeff'] )
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trace( 100, '\t | | PSeff %10.2g m |\n' % mt['parasitics.PSeff'] )
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trace( 100, '\t | | ADeff %10.2g m2 |\n' % mt['parasitics.ADeff'] )
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trace( 100, '\t | | PDeff %10.2g m |\n' % mt['parasitics.PDeff'] )
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trace( 100, '\t +------------+------------------------------------+\n' )
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trace( 100, '-' )
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return
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class Wiring ( object ):
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def __init__ ( self, device, wiring ):
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chain = wiring.split('.')
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net = chain[0]
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side = chain[1]
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if net == 'B' and device.isBulkConnected(): net = 'S'
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self.net = device.getNet( net )
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self.topTrack = -1
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self.botTrack = -1
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self.wTrack = 1
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if len(chain) >= 3: self.wTrack = int(chain[2])
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length = len(side)
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for i in range( 0, length/2, 2 ):
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track = -2
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if side[i+1] != 'X': track = int( side[i+1] )
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if side[i] == 't': self.topTrack = track
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if side[i] == 'b': self.botTrack = track
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if side[i] == 'z': pass
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return
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def isDrain ( self ): return self.net.getName()[0] == 'D'
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def isSource ( self ): return self.net.getName()[0] == 'S'
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def isGate ( self ): return self.net.getName()[0] == 'G'
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def isBulk ( self ): return self.net.getName()[0] == 'B'
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def isTop ( self ):
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if self.topTrack != -1: return Stack.NorthBulk
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return None
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def isBot ( self ):
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if self.botTrack != -1: return Stack.SouthBulk
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return None
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def getTop ( self ): return self.topTrack
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def getBot ( self ): return self.botTrack
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def setTop ( self, track ): self.topTrack = track
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def setBot ( self, track ): self.botTrack = track
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def getWTrack ( self ): return self.wTrack
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def __str__ ( self ):
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s = self.net.getName()
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if not self.isTop() and not self.isBot(): s += 'z'
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else:
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if self.isBot():
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s += '.b%d' % self.botTrack
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s += '.%d' % self.wTrack
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if self.isTop():
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s += '.t%d' % self.topTrack
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s += '.%d' % self.wTrack
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return s
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class Bulk ( object ):
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def __init__ ( self, stack, axis, usource, utarget, flags ):
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self.stack = stack
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self.axis = axis
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self.usource = usource
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self.utarget = utarget
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self.flags = flags
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self.ucontacts = []
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self.ucontactsBulk = []
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return
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def addContact ( self, upos, enabled=True ):
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#if self.ucontacts:
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# trace( 100, '\taddContact [ ' )
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# for pos, en in self.ucontacts: trace( 100, "%s+%s " % (DbU.getValueString(pos),en) )
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# trace( 100, '] inserting: %s+%s\n' % (DbU.getValueString(upos),enabled) )
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if len(self.ucontacts) == 0 or self.ucontacts[-1][0] < upos:
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self.ucontacts.append( (upos,enabled) )
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else:
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for i in range(len(self.ucontacts)):
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if self.ucontacts[i][0] > upos:
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self.ucontacts.insert( i, (upos,enabled) )
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return
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if self.ucontacts[i][0] == upos:
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return
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self.ucontacts.append( (upos,enabled) )
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return
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def _computeContacts ( self, ucontacts, pitch ):
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#trace( 100, ',+', '\tBulk._computeContacts() @%s\n' % DbU.getValueString(self.axis) )
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#trace( 100, '\thorPitch: %s\n' % DbU.getValueString(self.stack.horPitch) )
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#trace( 100, '\tbulk pitch: %s\n' % DbU.getValueString(pitch) )
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#trace( 100, '\tusource: %s\n' % DbU.getValueString(self.usource) )
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#trace( 100, '\tutarget: %s\n' % DbU.getValueString(self.utarget) )
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icontact = 0
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ucontact = self.usource
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while ucontact <= self.utarget:
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#trace( 100, '\tucontact: %s\n' % DbU.getValueString(ucontact) )
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if len(ucontacts) == 0:
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ucontacts.insert( 0, (ucontact,True) )
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else:
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if icontact == 0 and ucontact < ucontacts[0][0]:
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if ucontacts[0][0] - ucontact >= pitch:
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ucontacts.insert( 0, (ucontact,True) )
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else:
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while icontact+1 < len(ucontacts) and ucontacts[icontact+1][0] < ucontact:
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if icontact+1 == len(ucontacts): break
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icontact += 1
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if ucontact - ucontacts[icontact][0] >= pitch:
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if icontact + 1 >= len(ucontacts) \
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or ucontacts[icontact+1][0] - ucontact >= pitch:
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ucontacts.insert( icontact+1, (ucontact,True) )
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icontact += 1
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else:
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ucontact = ucontacts[icontact][0]
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ucontact += pitch
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trace( 100, '-' )
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return
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def computeContacts ( self ):
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#self.ucontactsBulk = copy.deepcopy( self.ucontacts )
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pitch = self.stack.minWidth_metal1 + self.stack.minSpacing_metal1
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pitch = max( pitch, self.stack.minWidth_cut0 + self.stack.minEnclosure_metal1_cut0*2 + self.stack.minSpacing_metal1 )
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if self.stack.isVH:
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self._computeContacts( self.ucontactsBulk, pitch )
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pitch = max( pitch, self.stack.minWidth_cut1 + self.stack.minEnclosure_metal1_cut1*2 + self.stack.minSpacing_metal1 )
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pitch = max( pitch, self.stack.minWidth_metal2 + self.stack.minSpacing_metal2 )
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pitch = max( pitch, self.stack.minWidth_cut1 + self.stack.minEnclosure_metal2_cut1*2 + self.stack.minSpacing_metal2 )
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pitch = max( pitch, self.stack.minWidth_cut2 + self.stack.minEnclosure_metal2_cut2*2 + self.stack.minSpacing_metal2 )
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if self.stack.isVH:
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pitch = max( pitch, self.stack.minWidth_metal3 + self.stack.minSpacing_metal3 )
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pitch = max( pitch, self.stack.minWidth_cut2 + self.stack.minEnclosure_metal3_cut2*2 + self.stack.minSpacing_metal3 )
|
|
|
|
|
|
|
|
|
|
#trace( 100, '\tOriginal ucontacts[]\n' )
|
|
|
|
|
#for ucontact, enabled in self.ucontacts:
|
|
|
|
|
# trace( 100, '\tucontact: %s enabled:%d\n' % (DbU.getValueString(ucontact),enabled) )
|
|
|
|
|
#trace( 100, '\n' )
|
|
|
|
|
|
|
|
|
|
self._computeContacts( self.ucontacts, pitch )
|
|
|
|
|
if not self.stack.isVH:
|
|
|
|
|
self.ucontactsBulk = self.ucontacts
|
|
|
|
|
return
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
def doLayout ( self ):
|
|
|
|
|
active = DataBase.getDB().getTechnology().getLayer( 'active' )
|
|
|
|
|
metal1 = DataBase.getDB().getTechnology().getLayer( 'metal1' )
|
|
|
|
|
metal2 = DataBase.getDB().getTechnology().getLayer( 'metal2' )
|
|
|
|
|
metal3 = DataBase.getDB().getTechnology().getLayer( 'metal3' )
|
|
|
|
|
cut0 = DataBase.getDB().getTechnology().getLayer( 'cut0' )
|
|
|
|
|
cut1 = DataBase.getDB().getTechnology().getLayer( 'cut1' )
|
|
|
|
|
cut2 = DataBase.getDB().getTechnology().getLayer( 'cut2' )
|
|
|
|
|
bulkNet = self.stack.bulkNet
|
|
|
|
|
|
|
|
|
|
self.computeContacts()
|
|
|
|
|
|
|
|
|
|
#trace( 100, '\tBulk.doLayout() @%s\n' % DbU.getValueString(self.axis) )
|
|
|
|
|
|
|
|
|
|
if self.flags & (Stack.NorthBulk | Stack.SouthBulk):
|
|
|
|
|
xsource = self.usource
|
|
|
|
|
xtarget = self.utarget
|
|
|
|
|
if not self.stack.hasWestBulk(): xsource = self.ucontacts[ 0][0]
|
|
|
|
|
if not self.stack.hasEastBulk(): xtarget = self.ucontacts[-1][0]
|
|
|
|
|
|
|
|
|
|
width = self.stack.minWidth_metal1
|
|
|
|
|
width = max( width, self.stack.minEnclosure_metal1_cut0*2 + self.stack.minWidth_cut0 )
|
|
|
|
|
Horizontal.create( bulkNet
|
|
|
|
|
, metal1
|
|
|
|
|
, self.axis
|
|
|
|
|
, width
|
|
|
|
|
, xsource-self.stack.wire1Width/2
|
|
|
|
|
, xtarget+self.stack.wire1Width/2 )
|
|
|
|
|
width = self.stack.minWidth_cut0 + 2* self.stack.minEnclosure_active_cut0
|
|
|
|
|
Horizontal.create( bulkNet
|
|
|
|
|
, active
|
|
|
|
|
, self.axis
|
|
|
|
|
, width
|
|
|
|
|
, self.usource-width/2
|
|
|
|
|
, self.utarget+width/2 )
|
|
|
|
|
width += 2* self.stack.minEnclosure_bImplant_active
|
|
|
|
|
Horizontal.create( bulkNet
|
|
|
|
|
, self.stack.bImplantLayer
|
|
|
|
|
, self.axis
|
|
|
|
|
, width
|
|
|
|
|
, self.usource-width/2
|
|
|
|
|
, self.utarget+width/2 )
|
|
|
|
|
|
|
|
|
|
for xcontact, enabled in self.ucontactsBulk:
|
|
|
|
|
if enabled:
|
|
|
|
|
Contact.create( bulkNet
|
|
|
|
|
, cut0
|
|
|
|
|
, xcontact
|
|
|
|
|
, self.axis
|
|
|
|
|
, self.stack.minWidth_cut0
|
|
|
|
|
, self.stack.minWidth_cut0 )
|
|
|
|
|
|
|
|
|
|
cutBb = Box( xcontact, self.axis, xcontact, self.axis )
|
|
|
|
|
|
|
|
|
|
#metal1EnclBb = Box( cutBb ).inflate( self.stack.minEnclosure_metal1_cut0 + self.stack.minWidth_cut0/2 )
|
|
|
|
|
#Pad.create( bulkNet, metal1, metal1EnclBb )
|
|
|
|
|
|
|
|
|
|
for xcontact, enabled in self.ucontacts:
|
|
|
|
|
trace( 100, '\tucontact: %s enabled:%d\n' % (DbU.getValueString(xcontact),enabled) )
|
|
|
|
|
|
|
|
|
|
if enabled:
|
|
|
|
|
Contact.create( bulkNet
|
|
|
|
|
, cut1
|
|
|
|
|
, xcontact
|
|
|
|
|
, self.axis
|
|
|
|
|
, self.stack.minWidth_cut1
|
|
|
|
|
, self.stack.minWidth_cut1 )
|
|
|
|
|
if self.stack.isVH:
|
|
|
|
|
Contact.create( bulkNet
|
|
|
|
|
, cut2
|
|
|
|
|
, xcontact
|
|
|
|
|
, self.axis
|
|
|
|
|
, self.stack.minWidth_cut2
|
|
|
|
|
, self.stack.minWidth_cut2 )
|
|
|
|
|
|
|
|
|
|
cutBb = Box( xcontact, self.axis, xcontact, self.axis )
|
|
|
|
|
|
|
|
|
|
metal1EnclBb = Box( cutBb ).inflate( self.stack.minEnclosure_metal1_cut1 + self.stack.minWidth_cut1/2 )
|
|
|
|
|
Pad.create( bulkNet, metal1, metal1EnclBb )
|
|
|
|
|
|
|
|
|
|
metal2EnclBb = Box( cutBb ).inflate( self.stack.minEnclosure_metal2_cut1 + self.stack.minWidth_cut1/2 )
|
|
|
|
|
if self.stack.isVH:
|
|
|
|
|
metal2EnclBb.merge( Box( cutBb ).inflate( self.stack.minEnclosure_metal2_cut2 + self.stack.minWidth_cut2/2 ) )
|
|
|
|
|
|
|
|
|
|
Pad.create( bulkNet, metal2, metal2EnclBb )
|
|
|
|
|
|
|
|
|
|
if self.stack.isVH:
|
|
|
|
|
metal3EnclBb = Box( cutBb ).inflate( self.stack.minEnclosure_metal3_cut2 + self.stack.minWidth_cut2/2 )
|
|
|
|
|
Pad.create( bulkNet, metal3, metal3EnclBb )
|
|
|
|
|
|
|
|
|
|
if self.flags & (Stack.EastBulk | Stack.WestBulk):
|
|
|
|
|
metal1Width = self.stack.minWidth_metal1
|
|
|
|
|
metal1Width = max( metal1Width, self.stack.minWidth_cut0 + 2*self.stack.minEnclosure_metal1_cut0 )
|
|
|
|
|
metal1Width = max( metal1Width, self.stack.minWidth_cut1 + 2*self.stack.minEnclosure_metal1_cut1 )
|
|
|
|
|
|
|
|
|
|
Vertical.create( bulkNet
|
|
|
|
|
, metal1
|
|
|
|
|
, self.axis
|
|
|
|
|
, metal1Width
|
|
|
|
|
, self.usource-self.stack.wire1Width/2
|
|
|
|
|
, self.utarget+self.stack.wire1Width/2 )
|
|
|
|
|
width = self.stack.minWidth_cut0 + 2*self.stack.minEnclosure_active_cut0
|
|
|
|
|
Vertical.create( bulkNet
|
|
|
|
|
, active
|
|
|
|
|
, self.axis
|
|
|
|
|
, width
|
|
|
|
|
, self.usource-width/2
|
|
|
|
|
, self.utarget+width/2 )
|
|
|
|
|
width += 2*self.stack.minEnclosure_bImplant_active
|
|
|
|
|
Vertical.create( bulkNet
|
|
|
|
|
, self.stack.bImplantLayer
|
|
|
|
|
, self.axis
|
|
|
|
|
, width
|
|
|
|
|
, self.usource-width/2
|
|
|
|
|
, self.utarget+width/2 )
|
|
|
|
|
|
|
|
|
|
for icontact in range(len(self.ucontacts)):
|
|
|
|
|
if (icontact == 0 and self.stack.hasSouthBulk()) \
|
|
|
|
|
or (icontact+1 == len(self.ucontacts) and self.stack.hasNorthBulk()): continue
|
|
|
|
|
Contact.create( bulkNet
|
|
|
|
|
, cut0
|
|
|
|
|
, self.axis
|
|
|
|
|
, self.ucontacts[icontact][0]
|
|
|
|
|
, self.stack.minWidth_cut0
|
|
|
|
|
, self.stack.minWidth_cut0 )
|
|
|
|
|
return
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
## Draw a Stack of Transistors.
|
|
|
|
|
#
|
|
|
|
|
# A Stack of Transistors is a set of transistor put into a regular
|
|
|
|
|
# band and connected through their sources/drains. All share the
|
|
|
|
|
# exact same W & L. The way they are connecteds defines what functionnality
|
|
|
|
|
# the Stack implement.
|
|
|
|
|
#
|
|
|
|
|
# The abutment box of the stack is adjusted so that both height and width
|
|
|
|
|
# are even multiples of the track pitches, so the device can be easily
|
|
|
|
|
# placed and handled by the mixed router. The extra space needed for
|
|
|
|
|
# padding is added around the active area. Due to the presence of tracks
|
|
|
|
|
# at the top and bottom of the stack, the active area will be horizontally
|
|
|
|
|
# centered but \b not vertically.
|
|
|
|
|
#
|
|
|
|
|
# The drawing of the stack is controlled through a set of variables
|
|
|
|
|
# (attributes) that allows to create it regardless of the technology.
|
|
|
|
|
# The technology is taken into account in the way those variables are
|
|
|
|
|
# computed and, obviously, their values. The following schematics details
|
|
|
|
|
# the main stack drawing variables along with their computations.
|
|
|
|
|
#
|
|
|
|
|
# \section secStackLayout Stack Layout
|
|
|
|
|
#
|
|
|
|
|
# \subsection secGatePitch Gate pitch
|
|
|
|
|
#
|
|
|
|
|
# - \c self.gatePitch : the pitch of transistors gates, inside the stack.
|
|
|
|
|
# It also applies to dummy transistors.
|
|
|
|
|
#
|
|
|
|
|
# \image html gate-pitch-1.png "Gate Pitch"
|
|
|
|
|
# \image latex gate-pitch-1.pdf "Gate Pitch" width=.9\linewidth
|
|
|
|
|
#
|
|
|
|
|
#
|
|
|
|
|
# \subsection secActiveSideWidth Active Side Width
|
|
|
|
|
#
|
|
|
|
|
# - \c self.activeSideWidth : the distance between the axis of the last
|
|
|
|
|
# transistor gate (on the left or right) and the edge of the active
|
|
|
|
|
# area (\e not the diffusion area).
|
|
|
|
|
#
|
|
|
|
|
# \image html active-side-width-1.png "Active Side Width"
|
|
|
|
|
# \image latex active-side-width-1.pdf "Active Side Width" width=.9\linewidth
|
|
|
|
|
#
|
|
|
|
|
#
|
|
|
|
|
# \subsection secHTrackDistance H-Track Distance
|
|
|
|
|
#
|
|
|
|
|
# - \c self.hTrackDistance : the minimal distance between either the top or
|
|
|
|
|
# bottom edge of the active area and the \e axis of the first track.
|
|
|
|
|
#
|
|
|
|
|
# \image html htrack-distance-1.png "H-Track distance"
|
|
|
|
|
# \image latex htrack-distance-1.pdf "H-Track distance" width=.9\linewidth
|
|
|
|
|
#
|
|
|
|
|
#
|
|
|
|
|
# \subsection secOverallVariables BoundingBox & Overall Variables
|
|
|
|
|
#
|
|
|
|
|
# - \c self.xpitches : the number of vertical track pitches needed to fully
|
|
|
|
|
# enclose the active area.
|
|
|
|
|
# - \c self.ypitches : the number of horizontal track pitches needed to fully
|
|
|
|
|
# enclose the active area.
|
|
|
|
|
# - \c self.activeOffsetX & \c self.activeOffsetY : the offsets of the active area
|
|
|
|
|
# from the bottom left corner of the abutment box.
|
|
|
|
|
# - \c self.diffusionWidth & \c self.diffusionHeight are the minimun dimensions
|
|
|
|
|
# required to fit the active area.
|
|
|
|
|
# - \c self.topTracksNb() : the number of tracks at the top of the stack.
|
|
|
|
|
# - \c self.botTracksNb() : the number of tracks at the bottom of the stack.
|
|
|
|
|
#
|
|
|
|
|
# \image html stack-layout-3.png "General Stack Layout"
|
|
|
|
|
# \image latex stack-layout-3.pdf "General Stack Layout" width=.9\linewidth
|
|
|
|
|
#
|
|
|
|
|
#
|
|
|
|
|
# \section secWiringSpecs Wiring Specifications
|
|
|
|
|
#
|
|
|
|
|
# Stack routing is done through vertical \c metal1 wires coming from the
|
|
|
|
|
# gates and diffusions areas and \c metal2 horizontal wires that can be
|
|
|
|
|
# either above or below the active area. \c metal2 wires (or track) goes
|
|
|
|
|
# through the whole stack and are assigned to one net only. A net will
|
|
|
|
|
# have at least one track above or below and may have both.
|
|
|
|
|
#
|
|
|
|
|
# The connections to the diffusions areas and gates of the various
|
|
|
|
|
# fingers are specified through a list. The stack is made of a regular
|
|
|
|
|
# alternation of diffusions and gates. The list tells, for each one
|
|
|
|
|
# starting from the left, to which net and track they are connected.
|
|
|
|
|
# For a stack of \f$NFs\f$ transistor fingers, the must wiring specification
|
|
|
|
|
# must contains \f$ 3 + (NFs-1) \times 2\f$ elements. The list is given
|
|
|
|
|
# through one \e string with each elements separated by one or more
|
|
|
|
|
# whitespace. The syntax for \e one element is detailed \ref secAtomicWiring.
|
|
|
|
|
#
|
|
|
|
|
# <b>Track numbering scheme</b>
|
|
|
|
|
#
|
|
|
|
|
# Tracks above (top) the active area and below (bottom) each have their
|
|
|
|
|
# own numbering. In both case, the count start \e from the active area.
|
|
|
|
|
# This, the top tracks will be numbered by increasing Y and the bottom
|
|
|
|
|
# tracks by \e decreasing Y.
|
|
|
|
|
#
|
|
|
|
|
# <b>Track/Net assignement</b>
|
|
|
|
|
#
|
|
|
|
|
# The track/net assignement is deduced from the atomic wiring specifications.
|
|
|
|
|
# It also allows to compute the total number of tracks needed above and
|
|
|
|
|
# below the active area.
|
|
|
|
|
#
|
|
|
|
|
# \image html wiring-spec-2.png "Wiring Specification"
|
|
|
|
|
# \image latex wiring-spec-2.pdf "Wiring Specification" width=.9\linewidth
|
|
|
|
|
#
|
|
|
|
|
# \subsection secAtomicWiring Atomic Wiring Specification
|
|
|
|
|
#
|
|
|
|
|
# An atomic wiring specification has the same syntax for either diffusions
|
|
|
|
|
# or gates. It \e must not comprise any whitespaces. it is made of the
|
|
|
|
|
# following parts:
|
|
|
|
|
# - The net name to connect to.
|
|
|
|
|
# - Whether the track is above the active area (\c "t") or below (\c "b").
|
|
|
|
|
# The special case (\c "z") means that this element must be left
|
|
|
|
|
# unconnected (is such case possible?).
|
|
|
|
|
# - The number of the track.
|
|
|
|
|
#
|
|
|
|
|
# \image html wiring-spec-1.png "Atomic Wiring Specification"
|
|
|
|
|
# \image latex wiring-spec-1.pdf "Atomic Wiring Specification" width=.4\linewidth
|
|
|
|
|
#
|
|
|
|
|
#
|
|
|
|
|
# \section secStackImplDetails Stack Implementation Details
|
|
|
|
|
#
|
|
|
|
|
# The \c __setattr__() and \c __getattr__ functions have been redefined
|
|
|
|
|
# so that the technological values (rules) can be accessed has normal
|
|
|
|
|
# attributes of the Stack class, in addition to the regular ones.
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
class Stack ( object ):
|
|
|
|
|
|
|
|
|
|
NorthBulk = 0x0004
|
|
|
|
|
SouthBulk = 0x0008
|
|
|
|
|
EastBulk = 0x0010
|
|
|
|
|
WestBulk = 0x0020
|
|
|
|
|
RingBulk = NorthBulk|SouthBulk|EastBulk|WestBulk
|
|
|
|
|
SourceIsolated = 0x0040
|
|
|
|
|
SourceShared = 0x0080
|
|
|
|
|
SourceMerged = 0x0100
|
|
|
|
|
DrainIsolated = 0x0200
|
|
|
|
|
DrainShared = 0x0400
|
|
|
|
|
DrainMerged = 0x0800
|
|
|
|
|
|
|
|
|
|
rules = oroshi.getRules()
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
def __setattr__ ( self, attribute, value ):
|
|
|
|
|
if hasattr(Stack.rules,attribute):
|
|
|
|
|
print '[ERROR] Stack.%s attribute is read-only (ignored).' % attribute
|
|
|
|
|
return
|
|
|
|
|
self.__dict__[attribute] = value
|
|
|
|
|
return
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
def __getattr__ ( self, attribute ):
|
|
|
|
|
if attribute.find('_') != -1:
|
|
|
|
|
if attribute in [ 'minEnclosure_nImplant_active'
|
|
|
|
|
, 'minEnclosure_pImplant_active'
|
|
|
|
|
]:
|
|
|
|
|
raise Error( 3, 'Stack.__getattr__(): Do not access directly rule "%s".' % attribute )
|
|
|
|
|
|
|
|
|
|
if self.isNmos():
|
|
|
|
|
if attribute == 'minEnclosure_tImplant_active': return getattr(Stack.rules,'minEnclosure_nImplant_active')
|
|
|
|
|
if attribute == 'minEnclosure_bImplant_active': return getattr(Stack.rules,'minEnclosure_pImplant_active')
|
|
|
|
|
else:
|
|
|
|
|
if attribute == 'minEnclosure_tImplant_active': return getattr(Stack.rules,'minEnclosure_pImplant_active')
|
|
|
|
|
if attribute == 'minEnclosure_bImplant_active': return getattr(Stack.rules,'minEnclosure_nImplant_active')
|
|
|
|
|
|
|
|
|
|
return getattr(Stack.rules,attribute)
|
|
|
|
|
|
|
|
|
|
if self.__dict__.has_key(attribute): return self.__dict__[attribute]
|
|
|
|
|
return None
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
@staticmethod
|
|
|
|
|
def _addToTracks ( tracks, trackNb, net ):
|
|
|
|
|
if trackNb < len(tracks):
|
|
|
|
|
if tracks[trackNb] and tracks[trackNb] != net:
|
|
|
|
|
raise Error( 3, 'Stack._addToTracks(): Track %d is already assigned to net "%s" (requested by net "%s")'
|
|
|
|
|
% ( trackNb, tracks[trackNb].getName(), net.getName() ) )
|
|
|
|
|
tracks[ trackNb ] = net
|
|
|
|
|
else:
|
|
|
|
|
for i in range( len(tracks), trackNb ): tracks.append( None )
|
|
|
|
|
tracks.append( net )
|
|
|
|
|
return
|
|
|
|
|
|
|
|
|
|
@staticmethod
|
|
|
|
|
def _addToWTracks ( tracks, trackNb, net ):
|
|
|
|
|
if trackNb < len(tracks):
|
|
|
|
|
if tracks[trackNb] and tracks[trackNb] != net:
|
|
|
|
|
raise Error( 3, 'Stack._addToTracks(): Track %d is already assigned to net "%s" (requested by net "%s")'
|
|
|
|
|
% ( trackNb, tracks[trackNb].getName(), net.getName() ) )
|
|
|
|
|
tracks[ trackNb ] = net
|
|
|
|
|
else:
|
|
|
|
|
for i in range( len(tracks), trackNb ): tracks.append( 0 )
|
|
|
|
|
tracks.append( net )
|
|
|
|
|
return
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
@staticmethod
|
|
|
|
|
def toGeomod ( geoFlags, nf ):
|
|
|
|
|
geomod = 0
|
|
|
|
|
|
|
|
|
|
# Check for geomod 9 & 10 first, because they require the additionnal
|
|
|
|
|
# condition that "nf" must be even. They lead to simpler equations in
|
|
|
|
|
# The BSIM4 model.
|
|
|
|
|
#if nf%2 == 0:
|
|
|
|
|
|
|
|
|
|
if geoFlags == (Stack.SourceIsolated | Stack.DrainIsolated): geomod = 0
|
|
|
|
|
elif geoFlags == (Stack.SourceIsolated | Stack.DrainShared ): geomod = 1
|
|
|
|
|
elif geoFlags == Stack.SourceIsolated: geomod = 1
|
|
|
|
|
elif geoFlags == (Stack.SourceShared | Stack.DrainIsolated): geomod = 2
|
|
|
|
|
elif geoFlags == Stack.DrainIsolated : geomod = 2
|
|
|
|
|
elif geoFlags == (Stack.SourceShared | Stack.DrainShared ): geomod = 3
|
|
|
|
|
elif geoFlags == Stack.SourceShared: geomod = 3
|
|
|
|
|
elif geoFlags == Stack.DrainShared : geomod = 3
|
|
|
|
|
elif geoFlags == 0: geomod = 3
|
|
|
|
|
elif geoFlags == (Stack.SourceIsolated | Stack.DrainMerged ): geomod = 4
|
|
|
|
|
elif geoFlags == (Stack.SourceShared | Stack.DrainMerged ): geomod = 5
|
|
|
|
|
elif geoFlags == Stack.DrainMerged : geomod = 5
|
|
|
|
|
elif geoFlags == (Stack.SourceMerged | Stack.DrainIsolated): geomod = 6
|
|
|
|
|
elif geoFlags == (Stack.SourceMerged | Stack.DrainShared ): geomod = 7
|
|
|
|
|
elif geoFlags == Stack.SourceMerged: geomod = 7
|
|
|
|
|
elif geoFlags == (Stack.SourceMerged | Stack.DrainMerged ): geomod = 8
|
|
|
|
|
# Modes 9 & 10 are not clear to me, but we shouldn't need it ever.
|
|
|
|
|
|
|
|
|
|
if geomod in [0, 4, 6, 8] and nf%2 == 0:
|
|
|
|
|
print '[WARNING] Stack.toGeomod(): In geomod %i, NF must be odd (%i)' % (geomod,nf)
|
|
|
|
|
|
|
|
|
|
return geomod
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
## <b>[API]</b> Constructor
|
|
|
|
|
#
|
|
|
|
|
# param rules The physical rule set.
|
|
|
|
|
# \param device The Hurricane AMS device into which the layout will be drawn.
|
|
|
|
|
# \param NERC Number of contact rows in external (first & last) diffusion connectors.
|
|
|
|
|
# \param NIRC Number of contact rows in middle diffusion connectors.
|
|
|
|
|
# param w The \b width of every transistor of the stack (aka \e fingers).
|
|
|
|
|
# param L The \b length of every transistor.
|
|
|
|
|
# param NFs The total number of fingers (dummies includeds).
|
|
|
|
|
# param NDs The number of dummies to put on each side of the stack.
|
|
|
|
|
|
|
|
|
|
def __init__ ( self, device, NERC, NIRC ):
|
|
|
|
|
self.dimensioned = False
|
|
|
|
|
self.device = device
|
|
|
|
|
self.w = oroshi.adjustOnGrid(device.getW() / device.getM())
|
|
|
|
|
self.L = oroshi.adjustOnGrid(device.getL())
|
|
|
|
|
self.NDs = device.getExternalDummy() # Number of Dummies at each end of the stack.
|
|
|
|
|
self.NFs = device.getM() * self.metaTnb() + self.NDs*2 # Total number of Fingers (including dummies).
|
|
|
|
|
self.NERC = NERC
|
|
|
|
|
self.NIRC = NIRC
|
|
|
|
|
self.wirings = []
|
|
|
|
|
self.topTracks = []
|
|
|
|
|
self.botTracks = []
|
|
|
|
|
self.flags = 0
|
|
|
|
|
self.bulks = [ None, None, None, None ] # 0:North, 1:South, 2:East, 3:West.
|
|
|
|
|
self.metaTransistors = {}
|
|
|
|
|
|
|
|
|
|
self.topWTracks = [] # widths top tracks
|
|
|
|
|
self.botWTracks = [] # widths bot tracks
|
|
|
|
|
|
|
|
|
|
if device.isBulkConnected(): self.bulkNet = device.getNet( 'S' )
|
|
|
|
|
else: self.bulkNet = device.getNet( 'B' )
|
|
|
|
|
|
|
|
|
|
bulkType = self.device.getBulkType()
|
|
|
|
|
if bulkType & 0x0001: self.flags |= Stack.NorthBulk
|
|
|
|
|
if bulkType & 0x0002: self.flags |= Stack.SouthBulk
|
|
|
|
|
if bulkType & 0x0004: self.flags |= Stack.EastBulk
|
|
|
|
|
if bulkType & 0x0008: self.flags |= Stack.WestBulk
|
|
|
|
|
|
|
|
|
|
if self.isNmos():
|
|
|
|
|
self.tImplantLayer = DataBase.getDB().getTechnology().getLayer( 'nImplant' )
|
|
|
|
|
self.bImplantLayer = DataBase.getDB().getTechnology().getLayer( 'pImplant' )
|
|
|
|
|
self.wellLayer = None
|
|
|
|
|
else:
|
|
|
|
|
self.tImplantLayer = DataBase.getDB().getTechnology().getLayer( 'pImplant' )
|
|
|
|
|
self.bImplantLayer = DataBase.getDB().getTechnology().getLayer( 'nImplant' )
|
|
|
|
|
self.wellLayer = DataBase.getDB().getTechnology().getLayer( 'pWell' )
|
|
|
|
|
|
|
|
|
|
return
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
def metaTnb ( self ):
|
|
|
|
|
metaT = 0
|
|
|
|
|
for i in self.device.getInstances(): metaT += 1
|
|
|
|
|
return metaT
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
## <b>[API]</b> Set the Stack wiring specification.
|
|
|
|
|
#
|
|
|
|
|
# \param wiringSpec A string defining the connections for the
|
|
|
|
|
# gates and diffusion areas.
|
|
|
|
|
#
|
|
|
|
|
# For a comprehensive explanation of the wiring specification, refers
|
|
|
|
|
# to \ref secWiringSpecs .
|
|
|
|
|
|
|
|
|
|
def setWirings ( self, wiringSpec ):
|
|
|
|
|
|
|
|
|
|
trace( 100, 'SetWirings \n' )
|
|
|
|
|
|
|
|
|
|
restrictions = {}
|
|
|
|
|
for net in self.device.getNets():
|
|
|
|
|
if net.getName() == 'anonymous':
|
|
|
|
|
restrictions[net] = Device.AllBlocked
|
|
|
|
|
else:
|
|
|
|
|
restrictions[net] = Device.NorthBlocked|Device.SouthBlocked
|
|
|
|
|
|
|
|
|
|
hasTopBulkTrack = False
|
|
|
|
|
hasBotBulkTrack = False
|
|
|
|
|
specs = wiringSpec.split()
|
|
|
|
|
i = 0
|
|
|
|
|
topBulkWiring = None
|
|
|
|
|
botBulkWiring = None
|
|
|
|
|
|
|
|
|
|
trace( 100, specs )
|
|
|
|
|
|
|
|
|
|
for spec in specs:
|
|
|
|
|
wiring = Wiring( self.device, spec )
|
|
|
|
|
self.wirings.append( wiring )
|
|
|
|
|
|
|
|
|
|
if wiring.isTop():
|
|
|
|
|
#restrictions[wiring.net] = restrictions[wiring.net] & ~Device.NorthBlocked
|
|
|
|
|
if wiring.net == self.bulkNet:
|
|
|
|
|
hasTopBulkTrack = True
|
|
|
|
|
topBulkWiring = wiring
|
|
|
|
|
continue
|
|
|
|
|
Stack._addToTracks ( self.topTracks , wiring.topTrack, wiring.net )
|
|
|
|
|
Stack._addToWTracks( self.topWTracks, wiring.topTrack, wiring.wTrack )
|
|
|
|
|
restrictions[wiring.net] = restrictions[wiring.net] & ~Device.NorthBlocked
|
|
|
|
|
|
|
|
|
|
if wiring.isBot():
|
|
|
|
|
#restrictions[wiring.net] = restrictions[wiring.net] & ~Device.SouthBlocked
|
|
|
|
|
if wiring.net == self.bulkNet:
|
|
|
|
|
hasBotBulkTrack = True
|
|
|
|
|
botBulkWiring = wiring
|
|
|
|
|
continue
|
|
|
|
|
Stack._addToTracks ( self.botTracks , wiring.botTrack, wiring.net )
|
|
|
|
|
Stack._addToWTracks( self.botWTracks, wiring.botTrack, wiring.wTrack )
|
|
|
|
|
restrictions[wiring.net] = restrictions[wiring.net] & ~Device.SouthBlocked
|
|
|
|
|
|
|
|
|
|
for net, flags in restrictions.items():
|
|
|
|
|
self.device.setRestrictions( net, flags )
|
|
|
|
|
|
|
|
|
|
if self.flags & Stack.NorthBulk or hasTopBulkTrack:
|
|
|
|
|
if not self.topTracks or self.topTracks[-1] != self.bulkNet:
|
|
|
|
|
for net in self.topTracks:
|
|
|
|
|
if net == self.bulkNet:
|
|
|
|
|
raise Error( 3, 'Stack.setWirings(): Bulk track (net:"%s") must be topmost.' \
|
|
|
|
|
% self.bulkNet.getName() )
|
|
|
|
|
index = len(self.topTracks)
|
|
|
|
|
Stack._addToTracks( self.topTracks , index, self.bulkNet )
|
|
|
|
|
if (topBulkWiring != None): Stack._addToWTracks( self.topWTracks, index, topBulkWiring.wTrack )
|
|
|
|
|
elif (botBulkWiring != None): Stack._addToWTracks( self.topWTracks, index, botBulkWiring.wTrack )
|
|
|
|
|
else: Stack._addToWTracks( self.topWTracks, index, self.device.getParameter('B.w').getValue() )
|
|
|
|
|
|
|
|
|
|
bulkIndex = len(self.topTracks)-1
|
|
|
|
|
for wiring in self.wirings:
|
|
|
|
|
if wiring.net == self.bulkNet: wiring.setTop( bulkIndex )
|
|
|
|
|
|
|
|
|
|
Stack._addToTracks ( self.topTracks , len(self.topTracks) , None )
|
|
|
|
|
Stack._addToWTracks( self.topWTracks, len(self.topWTracks), self.device.getParameter('B.w').getValue() )
|
|
|
|
|
|
|
|
|
|
if self.flags & Stack.SouthBulk or hasBotBulkTrack:
|
|
|
|
|
if not self.botTracks or self.botTracks[-1] != self.bulkNet:
|
|
|
|
|
for net in self.botTracks:
|
|
|
|
|
if net == self.bulkNet:
|
|
|
|
|
raise Error( 3, 'Stack.setWirings(): Bulk track (net:"%s") must be bottommost.' \
|
|
|
|
|
% self.bulkNet.getName() )
|
|
|
|
|
index = len(self.botTracks)
|
|
|
|
|
Stack._addToTracks( self.botTracks , index, self.bulkNet )
|
|
|
|
|
if (botBulkWiring != None): Stack._addToWTracks( self.botWTracks, index, botBulkWiring.wTrack )
|
|
|
|
|
elif (topBulkWiring != None): Stack._addToWTracks( self.botWTracks, index, topBulkWiring.wTrack )
|
|
|
|
|
else: Stack._addToWTracks( self.botWTracks, index, self.device.getParameter('B.w').getValue() )
|
|
|
|
|
bulkIndex = len(self.botTracks)-1
|
|
|
|
|
for wiring in self.wirings:
|
|
|
|
|
if wiring.net == self.bulkNet: wiring.setBot( bulkIndex )
|
|
|
|
|
|
|
|
|
|
Stack._addToTracks ( self.botTracks , len(self.botTracks) , None )
|
|
|
|
|
Stack._addToWTracks( self.botWTracks, len(self.botWTracks), self.device.getParameter('B.w').getValue() )
|
|
|
|
|
|
|
|
|
|
trace( 100, '\tbotTracks:%d topTracks:%d\n' % (len(self.topTracks),len(self.botTracks)) )
|
|
|
|
|
for i in range(len(self.wirings)):
|
|
|
|
|
trace( 100, '\t| wirings[%d]: %s\n' % (i,str(self.wirings[i])) )
|
|
|
|
|
if self.wirings[i].net == self.bulkNet:
|
|
|
|
|
if hasBotBulkTrack: self.wirings[i].setBot( len(self.botTracks)-2 )
|
|
|
|
|
if hasTopBulkTrack: self.wirings[i].setTop( len(self.topTracks)-2 )
|
|
|
|
|
trace( 100, '\t+ wirings[%d]: %s\n' % (i,str(self.wirings[i])) )
|
|
|
|
|
|
|
|
|
|
for i in range(len(self.wirings)):
|
|
|
|
|
gateName = self.wirings[i].net.getName()
|
|
|
|
|
if gateName[0] != 'G': continue
|
|
|
|
|
|
|
|
|
|
leftMost = False
|
|
|
|
|
rightMost = False
|
|
|
|
|
if i == 1: leftMost = True
|
|
|
|
|
if i == len(self.wirings)-1: rightMost = True
|
|
|
|
|
|
|
|
|
|
# MIN means "minimize the number of sources", so according to the
|
|
|
|
|
# number of transistor fingers, it is almost equivalent to
|
|
|
|
|
# "drain first".
|
|
|
|
|
if not self.metaTransistors.has_key(gateName):
|
|
|
|
|
MIN = 0
|
|
|
|
|
if self.wirings[i-1].isDrain(): MIN = 1
|
|
|
|
|
|
|
|
|
|
self.metaTransistors[gateName] = { 'gate':self.wirings[i].net, 'MIN':MIN, 'NF':1
|
|
|
|
|
, 'leftMost':leftMost, 'rightMost':rightMost
|
|
|
|
|
}
|
|
|
|
|
else:
|
|
|
|
|
self.metaTransistors[gateName]['NF'] += 1
|
|
|
|
|
self.metaTransistors[gateName]['rightMost'] = rightMost
|
|
|
|
|
|
|
|
|
|
# Compute style parameters for use in geomod equations.
|
|
|
|
|
for mt in self.metaTransistors.values():
|
|
|
|
|
geoFlags = 0
|
|
|
|
|
nf = mt['NF']
|
|
|
|
|
if nf % 2:
|
|
|
|
|
mt['style.NDend'] = 1
|
|
|
|
|
mt['style.NSend'] = 1
|
|
|
|
|
mt['style.NDint'] = nf-1
|
|
|
|
|
mt['style.NSint'] = nf-1
|
|
|
|
|
if mt['leftMost']:
|
|
|
|
|
if mt['MIN'] == 1: geoFlags |= Stack.DrainIsolated
|
|
|
|
|
else: geoFlags |= Stack.SourceIsolated
|
|
|
|
|
else:
|
|
|
|
|
if mt['MIN'] == 1: geoFlags |= Stack.DrainShared
|
|
|
|
|
else: geoFlags |= Stack.SourceShared
|
|
|
|
|
if mt['leftMost']:
|
|
|
|
|
if mt['MIN'] == 1: geoFlags |= Stack.SourceIsolated
|
|
|
|
|
else: geoFlags |= Stack.DrainIsolated
|
|
|
|
|
else:
|
|
|
|
|
if mt['MIN'] == 1: geoFlags |= Stack.SourceShared
|
|
|
|
|
else: geoFlags |= Stack.DrainShared
|
|
|
|
|
else:
|
|
|
|
|
if mt['MIN']:
|
|
|
|
|
mt['style.NDend'] = 2
|
|
|
|
|
mt['style.NSend'] = 0
|
|
|
|
|
mt['style.NDint'] = (nf/2 - 1)*2
|
|
|
|
|
mt['style.NSint'] = nf
|
|
|
|
|
if mt['leftMost'] or mt['rightMost']: geoFlags |= Stack.DrainIsolated
|
|
|
|
|
else: geoFlags |= Stack.DrainShared
|
|
|
|
|
else:
|
|
|
|
|
mt['style.NDend'] = 0
|
|
|
|
|
mt['style.NSend'] = 2
|
|
|
|
|
mt['style.NSint'] = (nf/2 - 1)*2
|
|
|
|
|
mt['style.NDint'] = nf
|
|
|
|
|
if mt['leftMost'] or mt['rightMost']: geoFlags |= Stack.SourceIsolated
|
|
|
|
|
else: geoFlags |= Stack.SourceShared
|
|
|
|
|
|
|
|
|
|
mt['style.geomod'] = Stack.toGeomod( geoFlags, mt['NF'] )
|
|
|
|
|
return
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
def isNmos ( self ): return self.device.isNMOS()
|
|
|
|
|
def isPmos ( self ): return self.device.isPMOS()
|
|
|
|
|
def hasNorthBulk ( self ): return self.flags & Stack.NorthBulk
|
|
|
|
|
def hasSouthBulk ( self ): return self.flags & Stack.SouthBulk
|
|
|
|
|
def hasEastBulk ( self ): return self.flags & Stack.EastBulk
|
|
|
|
|
def hasWestBulk ( self ): return self.flags & Stack.WestBulk
|
|
|
|
|
def wiring ( self, i ): return self.wirings[i]
|
|
|
|
|
def tracksNb ( self ): return len(self.topTracks) + len(self.botTracks)
|
|
|
|
|
def topTracksNb ( self ): return len(self.topTracks)
|
|
|
|
|
def botTracksNb ( self ): return len(self.botTracks)
|
|
|
|
|
|
|
|
|
|
def isTopTrack ( self, net ):
|
|
|
|
|
if net == self.bulkNet: return False
|
|
|
|
|
|
|
|
|
|
trackIndex = 2
|
|
|
|
|
if self.flags & Stack.NorthBulk: trackIndex = 3
|
|
|
|
|
if trackIndex > len(self.topTracks): return False
|
|
|
|
|
if self.topTracks[-trackIndex] != net: return False
|
|
|
|
|
return True
|
|
|
|
|
|
|
|
|
|
def isBotTrack ( self, net ):
|
|
|
|
|
if net == self.bulkNet: return False
|
|
|
|
|
|
|
|
|
|
trackIndex = 2
|
|
|
|
|
if self.flags & Stack.SouthBulk: trackIndex = 3
|
|
|
|
|
if trackIndex > len(self.botTracks): return False
|
|
|
|
|
if self.botTracks[-trackIndex] != net: return False
|
|
|
|
|
return True
|
|
|
|
|
|
|
|
|
|
######################################
|
|
|
|
|
def tracksNbPitch ( self ):
|
|
|
|
|
nb = 0
|
|
|
|
|
for i in range (self.topTracksNb()-1):
|
|
|
|
|
nb += self.topWTracks[i]
|
|
|
|
|
for i in range (self.botTracksNb()-1):
|
|
|
|
|
nb += self.botWTracks[i]
|
|
|
|
|
return nb
|
|
|
|
|
|
|
|
|
|
def getBotTrackY ( self, i ):
|
|
|
|
|
nb = self.horPitch
|
|
|
|
|
for j in range(self.botTracksNb()-2-i):
|
|
|
|
|
nb += self.horPitch*self.botWTracks[self.botTracksNb()-2-j]
|
|
|
|
|
return nb
|
|
|
|
|
|
|
|
|
|
def getTopTrackY ( self, i ):
|
|
|
|
|
y = (self.ypitches)*self.horPitch + self.getBotTrackY(0) + self.getHorizontalWidth(self.botWTracks[0])
|
|
|
|
|
#y = self.activeOffsetY + (self.ypitches-1)*self.horPitch #- self.hTrackDistance
|
|
|
|
|
for j in range(i):
|
|
|
|
|
y += self.horPitch*self.topWTracks[j]
|
|
|
|
|
return y
|
|
|
|
|
|
|
|
|
|
def getLastTopTrackY ( self ): return self.getTopTrackY(self.topTracksNb()-1)
|
|
|
|
|
def getLastTopWTracks ( self ): return self.topWTracks[self.topTracksNb()-2]
|
|
|
|
|
def getLastBotWTracks ( self ): return self.botWTracks[self.botTracksNb()-2]
|
|
|
|
|
def getHorizontalWidth ( self, trackSpan ): return (self.horPitch * (trackSpan - 1))
|
|
|
|
|
def getHorizontalAxis ( self, trackSpan ): return self.getHorizontalWidth(trackSpan)/2
|
|
|
|
|
|
|
|
|
|
def getWiringWidth ( self, wiring, isTopConnect ):
|
|
|
|
|
if isTopConnect: return self.horPitch * (self.topWTracks[wiring.topTrack] - 1)
|
|
|
|
|
return self.horPitch * (self.botWTracks[wiring.botTrack] - 1)
|
|
|
|
|
|
|
|
|
|
######################################
|
|
|
|
|
def DMCI ( self ):
|
|
|
|
|
if not self.dimensioned: self.computeDimensions()
|
|
|
|
|
return self.sideActiveWidth \
|
|
|
|
|
- self.L/2 \
|
|
|
|
|
- self.metal1ToGate \
|
|
|
|
|
- self.eDiffMetal1Width/2
|
|
|
|
|
|
|
|
|
|
def DMCG ( self ):
|
|
|
|
|
if not self.dimensioned: self.computeDimensions()
|
|
|
|
|
return (self.gatePitch - self.L)/2
|
|
|
|
|
|
|
|
|
|
def DMCGT ( self ): return 0.0
|
|
|
|
|
|
|
|
|
|
def DGG ( self ):
|
|
|
|
|
if not self.dimensioned: self.computeDimensions()
|
|
|
|
|
return self.gatePitch - self.L
|
|
|
|
|
|
|
|
|
|
def DGI ( self ):
|
|
|
|
|
if not self.dimensioned: self.computeDimensions()
|
|
|
|
|
return self.sideActiveWidth - self.L/2
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
## <b>[internal]</b> Compute Stack dimensions from the technological rules.
|
|
|
|
|
#
|
|
|
|
|
# <b>Internal function.</b> Perform the computation of:
|
|
|
|
|
# - \c self.metal1Pitch
|
|
|
|
|
# - \c self.minWidth_metal1
|
|
|
|
|
# - \c self.metal2Pitch
|
|
|
|
|
# - \c self.minWidth_metal2
|
|
|
|
|
# - \c self.gatePitch
|
|
|
|
|
# - \c self.sideActiveWidth
|
|
|
|
|
# - \c self.hTrackDistance
|
|
|
|
|
# - \c self.xpitches
|
|
|
|
|
# - \c self.ypitches
|
|
|
|
|
# - \c self.activeOffsetX
|
|
|
|
|
# - \c self.activeOffsetY
|
|
|
|
|
# - \c self.boundingBox
|
|
|
|
|
|
|
|
|
|
def computeDimensions ( self ):
|
|
|
|
|
if self.dimensioned: return
|
|
|
|
|
self.dimensioned = True
|
|
|
|
|
|
|
|
|
|
trace( 100, '\tStack.computeDimensions(): Start time %s.\n' % str(datetime.datetime.now()) )
|
|
|
|
|
|
|
|
|
|
specsNb = 3 + (self.NFs - 1)*2
|
|
|
|
|
if len(self.wirings) != specsNb:
|
|
|
|
|
raise Error( 3, [ 'Stack._computeDimension(): Wiring inconsistency,' \
|
|
|
|
|
' have %d specs but should be %d for a NFs of %d.' \
|
|
|
|
|
% (len(self.wirings), specsNb, self.NFs)
|
|
|
|
|
] )
|
|
|
|
|
|
|
|
|
|
rg = AllianceFramework.get().getRoutingGauge()
|
|
|
|
|
self.metal2Pitch = rg.getHorizontalPitch()
|
|
|
|
|
self.metal3Pitch = rg.getVerticalPitch()
|
|
|
|
|
self.isVH = rg.isVH()
|
|
|
|
|
|
|
|
|
|
foundHor = False
|
|
|
|
|
foundVer = False
|
|
|
|
|
for depth in range(rg.getDepth()):
|
|
|
|
|
rlg = rg.getLayerGauge(depth)
|
|
|
|
|
if rlg.getType() == Constant.PinOnly: continue
|
|
|
|
|
if rlg.getDirection() == Constant.Horizontal and not foundHor:
|
|
|
|
|
self.horPitch = rlg.getPitch()
|
|
|
|
|
foundHor = True
|
|
|
|
|
if rlg.getDirection() == Constant.Vertical and not foundVer:
|
|
|
|
|
self.verPitch = rlg.getPitch()
|
|
|
|
|
foundVer = True
|
|
|
|
|
|
|
|
|
|
width1 = self.minWidth_cut0 + self.minEnclosure_metal1_cut0*2
|
|
|
|
|
width2 = self.minWidth_cut1 + self.minEnclosure_metal1_cut1*2
|
|
|
|
|
self.wire1Width = max( self.minWidth_metal1, width1, width2 )
|
|
|
|
|
|
|
|
|
|
pitch1 = self.minWidth_metal2 + self.minSpacing_metal2
|
|
|
|
|
pitch2 = self.minWidth_cut1 + self.minEnclosure_metal2_cut1*2 + self.minSpacing_metal2
|
|
|
|
|
self.metal2TechnoPitch = max( pitch1, pitch2 )
|
|
|
|
|
|
|
|
|
|
if self.metal2Pitch == 0: self.metal2Pitch = self.metal2TechnoPitch
|
|
|
|
|
if self.metal2Pitch < self.metal2TechnoPitch:
|
|
|
|
|
raise Error( 3, 'Stack.computeDimensions(): Routing gauge pitch %s is inferior to technology minimum of %s.'
|
|
|
|
|
% ( DbU.getValueString(self.metal2Pitch)
|
|
|
|
|
, DbU.getValueString(self.metal2TechnoPitch) ) )
|
|
|
|
|
|
|
|
|
|
width1 = self.minWidth_cut1 + self.minEnclosure_metal2_cut1*2
|
|
|
|
|
if self.isVH:
|
|
|
|
|
self.wire2Width = self.minWidth_metal2
|
|
|
|
|
self.wire3Width = self.minWidth_metal3
|
|
|
|
|
else:
|
|
|
|
|
self.wire2Width = max( self.minWidth_metal2, width1 )
|
|
|
|
|
|
|
|
|
|
pitch1 = self.minGateSpacing_poly + self.minWidth_cut0
|
|
|
|
|
pitch2 = self.minSpacing_cut1 + self.minWidth_cut1
|
|
|
|
|
self.gateVia1Pitch = max( pitch1, pitch2 )
|
|
|
|
|
|
|
|
|
|
pitch1 = self.minWidth_cut0 + self.minSpacing_cut0
|
|
|
|
|
pitch2 = self.minWidth_cut1 + self.minSpacing_cut1
|
|
|
|
|
self.contactDiffPitch = max( pitch1, pitch2 )
|
|
|
|
|
self.contactDiffSide = max( self.minWidth_cut1, self.minWidth_cut0 )
|
|
|
|
|
|
|
|
|
|
iDiffContactWidth = self.contactDiffSide + (self.NIRC - 1)*self.contactDiffPitch
|
|
|
|
|
eDiffContactWidth = self.contactDiffSide + (self.NERC - 1)*self.contactDiffPitch
|
|
|
|
|
overlap = max( self.minEnclosure_metal1_cut0, self.minEnclosure_metal1_cut1 )
|
|
|
|
|
gateVia1Side = max( self.minWidth_cut1, self.minWidth_cut0 )
|
|
|
|
|
self.iDiffMetal1Width = iDiffContactWidth + overlap*2
|
|
|
|
|
self.eDiffMetal1Width = eDiffContactWidth + overlap*2
|
|
|
|
|
|
|
|
|
|
pitch1 = self.L \
|
|
|
|
|
+ iDiffContactWidth \
|
|
|
|
|
+ self.minSpacing_cut0_poly*2
|
|
|
|
|
pitch2 = self.minWidth_cut0 \
|
|
|
|
|
+ self.minEnclosure_poly_cut0*2 \
|
|
|
|
|
+ self.minGateSpacing_poly
|
|
|
|
|
pitch3 = self.minSpacing_metal1*2 \
|
|
|
|
|
+ self.iDiffMetal1Width \
|
|
|
|
|
+ max( self.L, gateVia1Side+2*overlap )
|
|
|
|
|
self.gatePitch = max( pitch1, pitch2, pitch3 )
|
|
|
|
|
self.metal1ToGate = (self.gatePitch - self.L - self.iDiffMetal1Width) / 2
|
|
|
|
|
|
|
|
|
|
self.sideActiveWidth = self.minEnclosure_active_cut0 \
|
|
|
|
|
- self.minEnclosure_metal1_cut0 \
|
|
|
|
|
+ self.eDiffMetal1Width \
|
|
|
|
|
+ self.metal1ToGate \
|
|
|
|
|
+ self.L/2
|
|
|
|
|
|
|
|
|
|
hTrackDistance1 = self.minWidth_cut0/2 + self.minSpacing_cut0_active
|
|
|
|
|
hTrackDistance2 = self.minWidth_cut0/2 + self.minEnclosure_poly_cut0 + self.minSpacing_poly_active
|
|
|
|
|
self.hTrackDistance = max( hTrackDistance1, hTrackDistance2 )
|
|
|
|
|
|
|
|
|
|
vBulkDistance1 = self.minWidth_cut0/2 \
|
|
|
|
|
+ self.minEnclosure_active_cut0 \
|
|
|
|
|
+ self.minEnclosure_tImplant_active \
|
|
|
|
|
+ self.minEnclosure_bImplant_active
|
|
|
|
|
vBulkDistance2 = self.minWidth_cut0/2 \
|
|
|
|
|
+ self.minEnclosure_active_cut0 \
|
|
|
|
|
+ self.minSpacing_nImplant_pImplant
|
|
|
|
|
self.vBulkDistance = max( vBulkDistance1, vBulkDistance2 )
|
|
|
|
|
|
|
|
|
|
activeHeight = self.w + 2*self.hTrackDistance
|
|
|
|
|
self.ypitches = activeHeight / self.horPitch
|
|
|
|
|
if activeHeight % self.horPitch: self.ypitches += 1
|
|
|
|
|
if (self.ypitches + self.tracksNbPitch()) % 2: self.ypitches += 1
|
|
|
|
|
|
|
|
|
|
diffusionWidth = (self.sideActiveWidth + self.minEnclosure_tImplant_active)*2 + (self.NFs-1)*self.gatePitch
|
|
|
|
|
deviceMinWidth = diffusionWidth
|
|
|
|
|
if self.flags & Stack.WestBulk: deviceMinWidth += self.vBulkDistance + self.verPitch
|
|
|
|
|
if self.flags & Stack.EastBulk: deviceMinWidth += self.vBulkDistance + self.verPitch
|
|
|
|
|
|
|
|
|
|
self.xpitches = deviceMinWidth / self.verPitch
|
|
|
|
|
if self.xpitches % 2:
|
|
|
|
|
self.xpitches += 1
|
|
|
|
|
else:
|
|
|
|
|
if diffusionWidth % self.verPitch:
|
|
|
|
|
self.xpitches += 2
|
|
|
|
|
|
|
|
|
|
self.activeOffsetY = self.getBotTrackY(0) + self.getHorizontalWidth(self.botWTracks[0]) \
|
|
|
|
|
+ self.hTrackDistance \
|
|
|
|
|
+ (self.ypitches*self.horPitch - activeHeight)/2 \
|
|
|
|
|
|
|
|
|
|
self.bbHeight = self.getLastTopTrackY()
|
|
|
|
|
|
|
|
|
|
self.bbWidth = self.xpitches * self.verPitch
|
|
|
|
|
diffusionRealWidth = self.bbWidth
|
|
|
|
|
if self.flags & Stack.WestBulk: diffusionRealWidth -= self.vBulkDistance + self.verPitch
|
|
|
|
|
if self.flags & Stack.EastBulk: diffusionRealWidth -= self.vBulkDistance + self.verPitch
|
|
|
|
|
self.activeOffsetX = self.minEnclosure_tImplant_active + (diffusionRealWidth - diffusionWidth)/2
|
|
|
|
|
if self.flags & Stack.WestBulk: self.activeOffsetX += self.vBulkDistance + self.verPitch
|
|
|
|
|
|
|
|
|
|
self.boundingBox = Box( 0, 0, self.bbWidth, self.bbHeight )
|
|
|
|
|
self.activeBox = Box( self.activeOffsetX
|
|
|
|
|
, self.activeOffsetY
|
|
|
|
|
, self.activeOffsetX + (self.NFs - 1) * self.gatePitch + 2*self.sideActiveWidth
|
|
|
|
|
, self.activeOffsetY + self.w
|
|
|
|
|
)
|
|
|
|
|
|
|
|
|
|
westBulkX = self.activeOffsetX
|
|
|
|
|
eastBulkX = self.activeOffsetX + diffusionWidth - self.minEnclosure_tImplant_active*2
|
|
|
|
|
southBulkY = self.boundingBox.getYMin() + self.horPitch
|
|
|
|
|
northBulkY = self.boundingBox.getYMax() - self.horPitch
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
self.bulkWidth = self.minWidth_cut0 + 2*self.minEnclosure_active_cut0
|
|
|
|
|
|
|
|
|
|
if self.flags & Stack.EastBulk:
|
|
|
|
|
eastBulkX = self.boundingBox.getXMax() - self.horPitch
|
|
|
|
|
self.bulks[2] = Bulk( self, eastBulkX, southBulkY, northBulkY, Stack.EastBulk )
|
|
|
|
|
|
|
|
|
|
if self.flags & Stack.WestBulk:
|
|
|
|
|
westBulkX = self.horPitch
|
|
|
|
|
self.bulks[3] = Bulk( self, westBulkX, southBulkY, northBulkY, Stack.WestBulk )
|
|
|
|
|
|
|
|
|
|
if self.flags & Stack.NorthBulk:
|
|
|
|
|
self.bulks[0] = Bulk( self, northBulkY, westBulkX, eastBulkX, Stack.NorthBulk )
|
|
|
|
|
|
|
|
|
|
if self.flags & Stack.SouthBulk:
|
|
|
|
|
self.bulks[1] = Bulk( self, southBulkY, westBulkX, eastBulkX, Stack.SouthBulk )
|
|
|
|
|
|
|
|
|
|
self.DMCI = oroshi.toUnity( self.sideActiveWidth
|
|
|
|
|
- self.L/2
|
|
|
|
|
- self.metal1ToGate
|
|
|
|
|
- self.eDiffMetal1Width/2 )
|
|
|
|
|
self.DMCG = oroshi.toUnity( (self.gatePitch - self.L)/2 )
|
|
|
|
|
self.DMCGT = 0
|
|
|
|
|
self.DGG = oroshi.toUnity( self.gatePitch - self.L )
|
|
|
|
|
self.DGI = oroshi.toUnity( self.sideActiveWidth - self.L/2 )
|
|
|
|
|
|
|
|
|
|
trace( 100, '+' )
|
|
|
|
|
trace( 100, '\t +----------------------------------+\n' )
|
|
|
|
|
trace( 100, '\t | Parameters |\n' )
|
|
|
|
|
trace( 100, '\t +=====================+============+\n' )
|
|
|
|
|
trace( 100, '\t | w (finger) | %10s |\n' % DbU.getValueString(self.w) )
|
|
|
|
|
trace( 100, '\t | L | %10s |\n' % DbU.getValueString(self.L) )
|
|
|
|
|
trace( 100, '\t | NFs | %10d |\n' % self.NFs )
|
|
|
|
|
trace( 100, '\t +=====================+============+\n' )
|
|
|
|
|
trace( 100, '\t | Computed |\n' )
|
|
|
|
|
trace( 100, '\t +=====================+============+\n' )
|
|
|
|
|
trace( 100, '\t | metal2 pitch | %10s |\n' % DbU.getValueString(self.metal2Pitch) )
|
|
|
|
|
trace( 100, '\t | metal2 Techno pitch | %10s |\n' % DbU.getValueString(self.metal2TechnoPitch) )
|
|
|
|
|
trace( 100, '\t | gatePitch | %10s |\n' % DbU.getValueString(self.gatePitch) )
|
|
|
|
|
trace( 100, '\t | sideActiveWidth | %10s |\n' % DbU.getValueString(self.sideActiveWidth) )
|
|
|
|
|
trace( 100, '\t | contactDiffPitch | %10s |\n' % DbU.getValueString(self.contactDiffPitch) )
|
|
|
|
|
trace( 100, '\t | hTrackDistance | %10s |\n' % DbU.getValueString(self.hTrackDistance) )
|
|
|
|
|
trace( 100, '\t | vBulkDistance | %10s |\n' % DbU.getValueString(self.vBulkDistance) )
|
|
|
|
|
trace( 100, '\t | activeOffsetX | %10s |\n' % DbU.getValueString(self.activeOffsetX) )
|
|
|
|
|
trace( 100, '\t | activeOffsetY | %10s |\n' % DbU.getValueString(self.activeOffsetY) )
|
|
|
|
|
trace( 100, '\t | active pitches | %10d |\n' % self.ypitches )
|
|
|
|
|
trace( 100, '\t +---------------------+------------+\n' )
|
|
|
|
|
trace( 100, '\n' )
|
|
|
|
|
trace( 100, '\tStack.computeDimensions(): End time %s.\n' % str(datetime.datetime.now()) )
|
|
|
|
|
trace( 100, '-' )
|
|
|
|
|
|
|
|
|
|
for mt in self.metaTransistors.values():
|
|
|
|
|
self.computeStressEffect( mt )
|
|
|
|
|
self.computeLayoutParasitics( mt )
|
|
|
|
|
traceMT( mt )
|
|
|
|
|
return
|
|
|
|
|
|
|
|
|
|
## <b>[API]</b> Draw the complete layout.
|
|
|
|
|
#
|
|
|
|
|
# Draw the commplete layout of the Stack.
|
|
|
|
|
|
|
|
|
|
def doLayout ( self, bbMode ):
|
|
|
|
|
trace( 100, '+', '\tStack.doLayout().\n' )
|
|
|
|
|
|
|
|
|
|
self.computeDimensions()
|
|
|
|
|
|
|
|
|
|
if not bbMode:
|
|
|
|
|
UpdateSession.open()
|
|
|
|
|
|
|
|
|
|
self.drawActive()
|
|
|
|
|
self.drawWell()
|
|
|
|
|
|
|
|
|
|
xoffset = self.activeOffsetX + self.sideActiveWidth
|
|
|
|
|
for i in range(self.NFs):
|
|
|
|
|
self.drawGate( xoffset + i*self.gatePitch, self.wirings[1+2*i] )
|
|
|
|
|
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|
|
|
for i in range(self.NFs+1):
|
|
|
|
|
if i == 0: # Leftmost diffusion area.
|
|
|
|
|
NRC = self.NERC
|
|
|
|
|
width = self.eDiffMetal1Width
|
|
|
|
|
axis = self.activeOffsetX \
|
|
|
|
|
+ self.sideActiveWidth \
|
|
|
|
|
- self.L/2 \
|
|
|
|
|
- self.metal1ToGate \
|
|
|
|
|
- width/2
|
|
|
|
|
elif i == self.NFs: # Rightmost diffusion area.
|
|
|
|
|
NRC = self.NERC
|
|
|
|
|
width = self.eDiffMetal1Width
|
|
|
|
|
axis = self.activeOffsetX \
|
|
|
|
|
+ self.sideActiveWidth \
|
|
|
|
|
+ self.gatePitch*(self.NFs - 1) \
|
|
|
|
|
+ self.L/2 \
|
|
|
|
|
+ self.metal1ToGate \
|
|
|
|
|
+ width/2
|
|
|
|
|
else: # Middle diffusion areas.
|
|
|
|
|
NRC = self.NIRC
|
|
|
|
|
width = self.iDiffMetal1Width
|
|
|
|
|
axis = self.activeOffsetX \
|
|
|
|
|
+ self.sideActiveWidth \
|
|
|
|
|
- self.gatePitch/2 \
|
|
|
|
|
+ self.gatePitch*i
|
|
|
|
|
|
|
|
|
|
self.drawSourceDrain( axis, self.wirings[2*i], width, NRC )
|
|
|
|
|
|
|
|
|
|
capSpacing = self.minSpacing_metal2 + self.minWidth_metal2/2
|
|
|
|
|
capSpacing = max( capSpacing, self.minSpacing_metal3 + self.minWidth_metal3/2 )
|
|
|
|
|
|
|
|
|
|
metal2 = DataBase.getDB().getTechnology().getLayer( 'metal2' )
|
|
|
|
|
metal3 = DataBase.getDB().getTechnology().getLayer( 'metal3' )
|
|
|
|
|
trackNb = 0
|
|
|
|
|
if self.topTracks: trackNb = len(self.topTracks)
|
|
|
|
|
for i in range(trackNb):
|
|
|
|
|
if not self.topTracks[i]: continue
|
|
|
|
|
h = Horizontal.create( self.topTracks[i]
|
|
|
|
|
, metal2
|
|
|
|
|
, self.getTopTrackY(i) + self.getHorizontalAxis (self.topWTracks[i])
|
|
|
|
|
, self.wire2Width + self.getHorizontalWidth(self.topWTracks[i])
|
|
|
|
|
, capSpacing
|
|
|
|
|
, self.bbWidth - capSpacing )
|
|
|
|
|
if self.isVH:
|
|
|
|
|
h = Horizontal.create( self.topTracks[i]
|
|
|
|
|
, metal3
|
|
|
|
|
, self.getTopTrackY(i) + self.getHorizontalAxis (self.topWTracks[i])
|
|
|
|
|
, self.wire3Width + self.getHorizontalWidth(self.topWTracks[i])
|
|
|
|
|
, capSpacing
|
|
|
|
|
, self.bbWidth - capSpacing )
|
|
|
|
|
NetExternalComponents.setExternal( h )
|
|
|
|
|
|
|
|
|
|
trackNb = 0
|
|
|
|
|
if self.botTracks: trackNb = len(self.botTracks)
|
|
|
|
|
for i in range(trackNb):
|
|
|
|
|
if not self.botTracks[i]: continue
|
|
|
|
|
h = Horizontal.create( self.botTracks[i]
|
|
|
|
|
, metal2
|
|
|
|
|
, self.getBotTrackY(i) + self.getHorizontalAxis (self.botWTracks[i])
|
|
|
|
|
, self.wire2Width + self.getHorizontalWidth(self.botWTracks[i])
|
|
|
|
|
, capSpacing
|
|
|
|
|
, self.bbWidth - capSpacing )
|
|
|
|
|
if self.isVH:
|
|
|
|
|
h = Horizontal.create( self.botTracks[i]
|
|
|
|
|
, metal3
|
|
|
|
|
, self.getBotTrackY(i) + self.getHorizontalAxis (self.botWTracks[i])
|
|
|
|
|
, self.wire3Width + self.getHorizontalWidth(self.botWTracks[i])
|
|
|
|
|
, capSpacing
|
|
|
|
|
, self.bbWidth - capSpacing )
|
|
|
|
|
NetExternalComponents.setExternal( h )
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
for bulk in self.bulks:
|
|
|
|
|
if bulk: bulk.doLayout()
|
|
|
|
|
|
|
|
|
|
UpdateSession.close()
|
|
|
|
|
|
|
|
|
|
trace( 100, '\tStack.doLayout(): End time %s\n' %str(datetime.datetime.now()) )
|
|
|
|
|
trace( 100, '-' )
|
|
|
|
|
return self.boundingBox
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
def drawActive ( self ):
|
|
|
|
|
trace( 100, '+', '\tDrawActive().\n' )
|
|
|
|
|
activeNet = self.device.getNet( 'active' )
|
|
|
|
|
if not activeNet: activeNet = Net.create( self.device, 'active' )
|
|
|
|
|
activeNet.setAutomatic( True )
|
|
|
|
|
|
|
|
|
|
tImplantNet = self.device.getNet( 'nImplant' )
|
|
|
|
|
if not tImplantNet: tImplantNet = Net.create( self.device, 'nImplant' )
|
|
|
|
|
tImplantNet.setAutomatic( True )
|
|
|
|
|
|
|
|
|
|
active = DataBase.getDB().getTechnology().getLayer( 'active' )
|
|
|
|
|
width = self.w
|
|
|
|
|
length = (self.NFs - 1) * self.gatePitch + 2*self.sideActiveWidth
|
|
|
|
|
axis = width / 2
|
|
|
|
|
xoffset = self.activeOffsetX
|
|
|
|
|
yoffset = self.activeOffsetY
|
|
|
|
|
segment = Horizontal.create( activeNet, active, yoffset+axis, width, xoffset, xoffset+length )
|
|
|
|
|
|
|
|
|
|
width = width + 2*self.minEnclosure_tImplant_active
|
|
|
|
|
length = length + 2*self.minEnclosure_tImplant_active
|
|
|
|
|
axis = width / 2
|
|
|
|
|
xoffset = self.activeOffsetX - self.minEnclosure_tImplant_active
|
|
|
|
|
yoffset = self.activeOffsetY - self.minEnclosure_tImplant_active
|
|
|
|
|
segment = Horizontal.create( tImplantNet
|
|
|
|
|
, self.tImplantLayer
|
|
|
|
|
, yoffset+axis
|
|
|
|
|
, width
|
|
|
|
|
, xoffset
|
|
|
|
|
, xoffset+length )
|
|
|
|
|
return
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
def drawWell ( self ):
|
|
|
|
|
if self.wellLayer:
|
|
|
|
|
trace( 100, '+', '\tDrawWell().\n' )
|
|
|
|
|
Pad.create( self.device.getNet('anonymous'), self.wellLayer, self.boundingBox )
|
|
|
|
|
return
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
def drawGate ( self, axis, wiring ):
|
|
|
|
|
trace( 100, '\tStack.drawGate(): %s\n' % wiring )
|
|
|
|
|
|
|
|
|
|
gate = DataBase.getDB().getTechnology().getLayer( 'poly' )
|
|
|
|
|
cut0 = DataBase.getDB().getTechnology().getLayer( 'cut0' )
|
|
|
|
|
cut1 = DataBase.getDB().getTechnology().getLayer( 'cut1' )
|
|
|
|
|
cut2 = DataBase.getDB().getTechnology().getLayer( 'cut2' )
|
|
|
|
|
metal1 = DataBase.getDB().getTechnology().getLayer( 'metal1' )
|
|
|
|
|
metal2 = DataBase.getDB().getTechnology().getLayer( 'metal2' )
|
|
|
|
|
metal3 = DataBase.getDB().getTechnology().getLayer( 'metal3' )
|
|
|
|
|
width = self.L
|
|
|
|
|
|
|
|
|
|
if wiring.isTop(): ytarget = self.getTopTrackY( wiring.topTrack )
|
|
|
|
|
else: ytarget = self.activeOffsetY + self.minExtension_poly_active + self.w
|
|
|
|
|
|
|
|
|
|
if wiring.isBot(): ysource = self.getBotTrackY( wiring.botTrack )
|
|
|
|
|
else: ysource = self.activeOffsetY - self.minExtension_poly_active
|
|
|
|
|
|
|
|
|
|
segment = Vertical.create( wiring.net, gate, axis, width, ysource, ytarget )
|
|
|
|
|
|
|
|
|
|
contactHeight = self.minWidth_cut0 + 2*self.minEnclosure_poly_cut0
|
|
|
|
|
contactWidth = max( contactHeight, self.L )
|
|
|
|
|
contactsNb = (contactWidth - 2*self.minEnclosure_poly_cut0) / self.gateVia1Pitch
|
|
|
|
|
if contactsNb:
|
|
|
|
|
contactPitch = contactWidth / contactsNb
|
|
|
|
|
else:
|
|
|
|
|
contactsNb = 1
|
|
|
|
|
contactPitch = self.L
|
|
|
|
|
|
|
|
|
|
gateVia1Overlap = max( self.minEnclosure_metal1_cut0, self.minEnclosure_metal1_cut1 )
|
|
|
|
|
gateVia1Side = max( self.minWidth_cut1, self.minWidth_cut0 )
|
|
|
|
|
|
|
|
|
|
for connector in ( (wiring.isTop(),ytarget,True), (wiring.isBot(),ysource,False) ):
|
|
|
|
|
if not connector[0]: continue
|
|
|
|
|
|
|
|
|
|
isTopConnect = connector[2]
|
|
|
|
|
yoffset = connector[1]
|
|
|
|
|
xcontact = axis - self.L/2 + contactPitch/2
|
|
|
|
|
contactBb = Box( axis, yoffset ).inflate( contactWidth/2, contactHeight/2)
|
|
|
|
|
width = gateVia1Side + 2*gateVia1Overlap + self.getWiringWidth(wiring, isTopConnect)
|
|
|
|
|
y = yoffset + self.getWiringWidth(wiring, isTopConnect)/2
|
|
|
|
|
rowHeight = self.horPitch
|
|
|
|
|
|
|
|
|
|
if isTopConnect:
|
|
|
|
|
contactBb = Box( axis, yoffset ).inflate( contactWidth/2, contactHeight/2+self.getWiringWidth(wiring, isTopConnect))
|
|
|
|
|
|
|
|
|
|
Pad.create( wiring.net, gate, contactBb ) # GateExtension Contact
|
|
|
|
|
Horizontal.create( wiring.net
|
|
|
|
|
, metal1
|
|
|
|
|
, y
|
|
|
|
|
, width
|
|
|
|
|
, xcontact - gateVia1Side/2 - gateVia1Overlap
|
|
|
|
|
, xcontact + (contactsNb-1)*contactPitch + gateVia1Side/2 + gateVia1Overlap )# M1 area
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
cut1Bb = Box()
|
|
|
|
|
cut2Bb = Box()
|
|
|
|
|
for i in range(contactsNb):
|
|
|
|
|
if isTopConnect: rangeWidth = range(self.topWTracks[wiring.topTrack])
|
2018-10-18 11:10:01 -05:00
|
|
|
else: rangeWidth = range(self.botWTracks[wiring.botTrack])
|
2018-10-01 09:52:17 -05:00
|
|
|
|
|
|
|
|
for j in rangeWidth:
|
|
|
|
|
contactBb = Box( xcontact, yoffset ).inflate( self.minWidth_cut0/2 )
|
|
|
|
|
Pad.create( wiring.net, cut0, contactBb )
|
|
|
|
|
contactBb = Box( xcontact, yoffset ).inflate( self.minWidth_cut1/2 )
|
|
|
|
|
Pad.create( wiring.net, cut1, contactBb )
|
|
|
|
|
cut1Bb.merge( contactBb )
|
|
|
|
|
if self.isVH:
|
|
|
|
|
contactBb = Box( xcontact, yoffset ).inflate( self.minWidth_cut2/2 )
|
|
|
|
|
Pad.create( wiring.net, cut2, contactBb )
|
|
|
|
|
cut2Bb.merge( contactBb )
|
|
|
|
|
yoffset += rowHeight
|
|
|
|
|
yoffset -= rowHeight*self.topWTracks[wiring.topTrack]
|
|
|
|
|
|
|
|
|
|
if self.isVH:
|
|
|
|
|
metal2EnclBb = Box( cut1Bb ).inflate( self.minEnclosure_metal2_cut1 )
|
|
|
|
|
metal2EnclBb.merge( Box( cut2Bb ).inflate( self.minEnclosure_metal2_cut2 ) )
|
|
|
|
|
Pad.create( wiring.net, metal2, metal2EnclBb )
|
|
|
|
|
|
|
|
|
|
metal3EnclBb = Box( cut2Bb ).inflate( self.minEnclosure_metal3_cut2 )
|
|
|
|
|
Pad.create( wiring.net, metal3, metal3EnclBb )
|
|
|
|
|
|
|
|
|
|
enable = False
|
|
|
|
|
if wiring.net == self.bulkNet: enable = True
|
|
|
|
|
if connector[0] & Stack.NorthBulk and self.bulks[0]: self.bulks[0].addContact( xcontact, enable )
|
|
|
|
|
if connector[0] & Stack.SouthBulk and self.bulks[1]: self.bulks[1].addContact( xcontact, enable )
|
|
|
|
|
|
|
|
|
|
xcontact += contactPitch
|
|
|
|
|
|
|
|
|
|
return
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
def drawSourceDrain ( self, axis, wiring, width, cols ):
|
|
|
|
|
trace( 100, '\tStack.drawSourceDrain(): %s @%s width:%s NRC=%d\n' \
|
|
|
|
|
% (wiring, DbU.getValueString(axis), DbU.getValueString(width), cols ) )
|
|
|
|
|
|
|
|
|
|
metal1 = DataBase.getDB().getTechnology().getLayer( 'metal1' )
|
|
|
|
|
metal2 = DataBase.getDB().getTechnology().getLayer( 'metal2' )
|
|
|
|
|
metal3 = DataBase.getDB().getTechnology().getLayer( 'metal3' )
|
|
|
|
|
cut0 = DataBase.getDB().getTechnology().getLayer( 'cut0' )
|
|
|
|
|
cut1 = DataBase.getDB().getTechnology().getLayer( 'cut1' )
|
|
|
|
|
cut2 = DataBase.getDB().getTechnology().getLayer( 'cut2' )
|
|
|
|
|
rows = max( 1, (self.w - 2*self.minEnclosure_active_cut0) / self.contactDiffPitch )
|
|
|
|
|
ypitch = self.w / rows
|
|
|
|
|
yoffset = self.activeOffsetY + ypitch/2
|
|
|
|
|
xpitch = self.contactDiffPitch
|
|
|
|
|
ypitch2 = self.horPitch
|
|
|
|
|
xoffset = axis - (self.contactDiffPitch * (cols - 1))/2
|
|
|
|
|
|
|
|
|
|
if self.w < 2*self.minEnclosure_active_cut0 + self.minWidth_cut0:
|
|
|
|
|
active = DataBase.getDB().getTechnology().getLayer( 'active' )
|
|
|
|
|
|
|
|
|
|
box = Box( xoffset, yoffset, xoffset + (cols-1)*xpitch, yoffset )
|
|
|
|
|
box.inflate( self.minWidth_cut0 + self.minEnclosure_active_cut0 )
|
|
|
|
|
Pad.create( wiring.net, active, box )
|
|
|
|
|
|
|
|
|
|
box.inflate( self.minEnclosure_tImplant_active )
|
|
|
|
|
Pad.create( wiring.net, self.tImplantLayer, box )
|
|
|
|
|
|
|
|
|
|
for j in range(rows):
|
|
|
|
|
for i in range(cols):
|
|
|
|
|
contact = Contact.create( wiring.net
|
|
|
|
|
, cut0
|
|
|
|
|
, xoffset + i*xpitch
|
|
|
|
|
, yoffset + j*ypitch
|
|
|
|
|
, self.minWidth_cut0
|
|
|
|
|
, self.minWidth_cut0 )
|
|
|
|
|
|
|
|
|
|
if wiring.isTop():
|
|
|
|
|
ytarget = self.getTopTrackY( wiring.topTrack )
|
|
|
|
|
for i in range(cols):
|
|
|
|
|
for j in range(self.topWTracks[wiring.topTrack]):
|
|
|
|
|
Contact.create( wiring.net
|
|
|
|
|
, cut1
|
|
|
|
|
, xoffset + i*xpitch
|
|
|
|
|
, ytarget + j*ypitch2
|
|
|
|
|
, self.minWidth_cut1
|
|
|
|
|
, self.minWidth_cut1 )
|
|
|
|
|
Contact.create( wiring.net
|
|
|
|
|
, cut2
|
|
|
|
|
, xoffset + i*xpitch
|
|
|
|
|
, ytarget + j*ypitch2
|
|
|
|
|
, self.minWidth_cut2
|
|
|
|
|
, self.minWidth_cut2 )
|
|
|
|
|
|
|
|
|
|
enable = False
|
|
|
|
|
if wiring.net == self.bulkNet: enable = True
|
|
|
|
|
if self.bulks[0]: self.bulks[0].addContact( xoffset + i*xpitch, enable )
|
|
|
|
|
|
|
|
|
|
if self.isVH:
|
|
|
|
|
cutBb = Box( xoffset
|
|
|
|
|
, ytarget
|
|
|
|
|
, xoffset + xpitch *(cols - 1)
|
|
|
|
|
, ytarget + ypitch2*(self.topWTracks[wiring.topTrack] - 1) )
|
|
|
|
|
|
|
|
|
|
metal2EnclBb = Box( cutBb ).inflate( self.minEnclosure_metal2_cut1 + self.minWidth_cut1/2 )
|
|
|
|
|
metal2EnclBb.merge( Box( cutBb ).inflate( self.minEnclosure_metal2_cut2 + self.minWidth_cut2/2 ) )
|
|
|
|
|
Pad.create( wiring.net, metal2, metal2EnclBb )
|
|
|
|
|
|
|
|
|
|
metal3EnclBb = Box( cutBb ).inflate( self.minEnclosure_metal3_cut2 + self.minWidth_cut2/2 )
|
|
|
|
|
Pad.create( wiring.net, metal3, metal3EnclBb )
|
|
|
|
|
|
|
|
|
|
ytarget += ypitch2*(self.topWTracks[wiring.topTrack]-1)
|
|
|
|
|
else:
|
|
|
|
|
ytarget = yoffset + ypitch*(rows - 1)
|
|
|
|
|
|
|
|
|
|
if wiring.isBot():
|
|
|
|
|
ysource = self.getBotTrackY( wiring.botTrack )
|
|
|
|
|
for i in range(cols):
|
|
|
|
|
for j in range(self.botWTracks[wiring.botTrack]):
|
|
|
|
|
Contact.create( wiring.net
|
|
|
|
|
, cut1
|
|
|
|
|
, xoffset + i*xpitch
|
|
|
|
|
, ysource + j*ypitch2
|
|
|
|
|
, self.minWidth_cut1
|
|
|
|
|
, self.minWidth_cut1 )
|
|
|
|
|
Contact.create( wiring.net
|
|
|
|
|
, cut2
|
|
|
|
|
, xoffset + i*xpitch
|
|
|
|
|
, ysource + j*ypitch2
|
|
|
|
|
, self.minWidth_cut2
|
|
|
|
|
, self.minWidth_cut2 )
|
|
|
|
|
|
|
|
|
|
if self.bulks[1]:
|
|
|
|
|
if self.isBotTrack(wiring.net) or wiring.net == self.bulkNet:
|
|
|
|
|
enable = False
|
|
|
|
|
if wiring.net == self.bulkNet: enable = True
|
|
|
|
|
self.bulks[1].addContact( xoffset + i*xpitch, enable )
|
|
|
|
|
|
|
|
|
|
if self.isVH:
|
|
|
|
|
cutBb = Box( xoffset
|
|
|
|
|
, ysource
|
|
|
|
|
, xoffset + xpitch *(cols - 1)
|
|
|
|
|
, ysource + ypitch2*(self.botWTracks[wiring.botTrack] - 1) )
|
|
|
|
|
|
|
|
|
|
metal2EnclBb = Box( cutBb ).inflate( self.minEnclosure_metal2_cut1 + self.minWidth_cut1/2 )
|
|
|
|
|
metal2EnclBb.merge( Box( cutBb ).inflate( self.minEnclosure_metal2_cut2 + self.minWidth_cut2/2 ) )
|
|
|
|
|
Pad.create( wiring.net, metal2, metal2EnclBb )
|
|
|
|
|
|
|
|
|
|
metal3EnclBb = Box( cutBb ).inflate( self.minEnclosure_metal3_cut2 + self.minWidth_cut2/2 )
|
|
|
|
|
Pad.create( wiring.net, metal3, metal3EnclBb )
|
|
|
|
|
else:
|
|
|
|
|
ysource = yoffset
|
|
|
|
|
|
|
|
|
|
bcontact = Contact.create( wiring.net
|
|
|
|
|
, metal1
|
|
|
|
|
, axis
|
|
|
|
|
, ysource
|
|
|
|
|
, width
|
|
|
|
|
, self.wire1Width )
|
|
|
|
|
tcontact = Contact.create( wiring.net
|
|
|
|
|
, metal1
|
|
|
|
|
, axis
|
|
|
|
|
, ytarget
|
|
|
|
|
, width
|
|
|
|
|
, self.wire1Width )
|
|
|
|
|
segment = Vertical.create( bcontact, tcontact, metal1, axis, width )
|
|
|
|
|
|
|
|
|
|
return
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
def computeStressEffect ( self, mt ):
|
|
|
|
|
# Stress effect computation as specified in S. Youssef thesis, p.59.
|
|
|
|
|
eastBulkWidth = 0
|
|
|
|
|
westBulkWidth = 0
|
|
|
|
|
if self.flags & Stack.WestBulk: westBulkWidth = self.bulkWidth
|
|
|
|
|
if self.flags & Stack.EastBulk: eastBulkWidth = self.bulkWidth
|
|
|
|
|
|
|
|
|
|
L = oroshi.toUnity( self.L )
|
|
|
|
|
sumA_Bsim4 = 0.0
|
|
|
|
|
sumB_Bsim4 = 0.0
|
|
|
|
|
sumA_Crolles = 0.0
|
|
|
|
|
sumB_Crolles = 0.0
|
|
|
|
|
|
|
|
|
|
for i in range(self.NFs):
|
|
|
|
|
if not self.wirings[i].net != mt['gate']: continue
|
|
|
|
|
|
|
|
|
|
sa = self.DGI + westBulkWidth + i *(L + self.DGG)
|
|
|
|
|
sb = self.DGI + eastBulkWidth + (self.NFs - i - 1)*(L + self.DGG)
|
|
|
|
|
|
|
|
|
|
sumA_Bsim4 += 1 / (sa + 0.5*self.DGG)
|
|
|
|
|
sumB_Bsim4 += 1 / (sb + 0.5*self.DGG)
|
|
|
|
|
sumA_Crolles += 1 / sa
|
|
|
|
|
sumB_Crolles += 1 / sb
|
|
|
|
|
|
|
|
|
|
SAinv_Bsim4 = sumA_Bsim4 / mt['NF']
|
|
|
|
|
SBinv_Bsim4 = sumB_Bsim4 / mt['NF']
|
|
|
|
|
SAinv_Crolles = sumA_Crolles / mt['NF']
|
|
|
|
|
SBinv_Crolles = sumB_Crolles / mt['NF']
|
|
|
|
|
|
|
|
|
|
mt['stress.SAinv_Bsim4'] = SAinv_Bsim4
|
|
|
|
|
mt['stress.SBinv_Bsim4'] = SBinv_Bsim4
|
|
|
|
|
mt['stress.SAeff_Bsim4'] = 1 / SAinv_Bsim4
|
|
|
|
|
mt['stress.SBeff_Bsim4'] = 1 / SBinv_Bsim4
|
|
|
|
|
mt['stress.LODeffect' ] = 1 / SAinv_Bsim4 + 1 / SBinv_Bsim4
|
|
|
|
|
mt['stress.alpha' ] = 2 / ( SAinv_Bsim4 + SBinv_Bsim4 )
|
|
|
|
|
mt['stress.alphaInv' ] = 1 / mt['stress.alpha']
|
|
|
|
|
|
|
|
|
|
mt['stress.SAinv_Crolles' ] = SAinv_Crolles
|
|
|
|
|
mt['stress.SBinv_Crolles' ] = SBinv_Crolles
|
|
|
|
|
mt['stress.SAeff_Crolles' ] = 1 / SAinv_Crolles
|
|
|
|
|
mt['stress.SBeff_Crolles' ] = 1 / SBinv_Crolles
|
|
|
|
|
mt['stress.po2actEff_Crolles'] = 2 / ( SAinv_Crolles + SBinv_Crolles )
|
|
|
|
|
|
|
|
|
|
return
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
def computeLayoutParasitics ( self, mt ):
|
|
|
|
|
#trace( 100, '\tStack.computeLayoutParasitics(): %s\n' % str(mt) )
|
|
|
|
|
|
|
|
|
|
NSend = mt['style.NSend']
|
|
|
|
|
NDend = mt['style.NDend']
|
|
|
|
|
NSint = mt['style.NSint']
|
|
|
|
|
NDint = mt['style.NDint']
|
|
|
|
|
NF = mt['NF']
|
|
|
|
|
Weff = oroshi.toUnity( self.w )
|
|
|
|
|
DMCI = self.DMCI
|
|
|
|
|
DMCG = self.DMCG
|
|
|
|
|
DMCGT = self.DMCGT
|
|
|
|
|
|
|
|
|
|
if mt['style.geomod'] == 0:
|
|
|
|
|
ASeff = NSend * ( DMCG + DMCI - DMCGT) * Weff + NSint *(DMCG - DMCGT)*Weff
|
|
|
|
|
PSeff = NSend * ( 2*(DMCG + DMCI - DMCGT) + Weff) + NSint * 2*(DMCG - DMCGT)
|
|
|
|
|
ADeff = NDend * ( DMCG + DMCI - DMCGT) * Weff + NDint *(DMCG - DMCGT)*Weff
|
|
|
|
|
PDeff = NDend * ( 2*(DMCG + DMCI - DMCGT) + Weff) + NDint * 2*(DMCG - DMCGT)
|
|
|
|
|
elif mt['style.geomod'] == 1:
|
|
|
|
|
ASeff = NSend * (DMCG + DMCI - DMCGT) * Weff + NSint *(DMCG - DMCGT)*Weff
|
|
|
|
|
PSeff = NSend * ( 2*(DMCG + DMCI - DMCGT) + Weff) + NSint *2*(DMCG - DMCGT)
|
|
|
|
|
ADeff = NDend * (DMCG - DMCGT)*Weff + NDint *(DMCG - DMCGT)*Weff
|
|
|
|
|
PDeff = NDend * 2*(DMCG - DMCGT) + NDint *2*(DMCG - DMCGT)
|
|
|
|
|
elif mt['style.geomod'] == 2:
|
|
|
|
|
ASeff = NSend * (DMCG - DMCGT) * Weff + NSint *(DMCG - DMCGT)*Weff
|
|
|
|
|
PSeff = NSend * 2 * (DMCG - DMCGT) + NSint *2*(DMCG - DMCGT)
|
|
|
|
|
ADeff = NDend * (DMCG + DMCI - DMCGT) * Weff + NDint *(DMCG - DMCGT)*Weff
|
|
|
|
|
PDeff = NDend * ( 2*(DMCG + DMCI - DMCGT) + Weff) + NDint *2*(DMCG - DMCGT)
|
|
|
|
|
elif mt['style.geomod'] == 3:
|
|
|
|
|
ASeff = NSend *(DMCG - DMCGT) * Weff + NSint *(DMCG - DMCGT)*Weff
|
|
|
|
|
PSeff = NSend *2*(DMCG - DMCGT) + NSint *2*(DMCG - DMCGT)
|
|
|
|
|
ADeff = NDend *(DMCG + DMCI - DMCGT) * Weff + NDint *(DMCG - DMCGT)*Weff
|
|
|
|
|
PDeff = NDend * ( 2*(DMCG + DMCI - DMCGT) + Weff) + NDint *2*(DMCG - DMCGT)
|
|
|
|
|
elif mt['style.geomod'] == 4:
|
|
|
|
|
ASeff = NSend * (DMCG + DMCI - DMCGT) * Weff + NSint *(DMCG - DMCGT)*Weff
|
|
|
|
|
PSeff = NSend * ( 2*(DMCG + DMCI - DMCGT) * Weff) + NSint *2*(DMCG - DMCGT)
|
|
|
|
|
ADeff = NDend * (DMDG - DMCGT)*Weff + NDint *(DMCG - DMCGT)*Weff
|
|
|
|
|
PDeff = NDend * 2*(DMDG - DMCGT) + NDint *2*(DMCG - DMCGT)
|
|
|
|
|
elif mt['style.geomod'] == 5:
|
|
|
|
|
ASeff = NSend *(DMCG - DMCGT)*Weff + NSint *(DMCG - DMCGT)*Weff
|
|
|
|
|
PSeff = NSend * 2 *(DMCG - DMCGT) + NSint*2*(DMCG - DMCGT)
|
|
|
|
|
ADeff = NDend *(DMDG - DMCGT) * Weff + NDint *(DMCG - DMCGT)*Weff
|
|
|
|
|
PDeff = NDend * ( 2*(DMDG - DMCGT) * Weff) + NDint*2*(DMCG - DMCGT)
|
|
|
|
|
elif mt['style.geomod'] == 5:
|
|
|
|
|
ASeff = NSend *(DMDG - DMCGT)*Weff + NSint *(DMDG - DMCGT)*Weff
|
|
|
|
|
PSeff = NSend *2*(DMCG - DMCGT) + NSint*2*(DMCG - DMCGT)
|
|
|
|
|
ADeff = NDend *(DMCG + DMCI - DMCGT) * Weff + NDint *(DMCG - DMCGT)*Weff
|
|
|
|
|
PDeff = NDend * ( 2*(DMCG + DMCI - DMCGT) * Weff) + NDint*2*(DMCG - DMCGT)
|
|
|
|
|
elif mt['style.geomod'] == 6:
|
|
|
|
|
ASeff = NSend *(DMDG - DMCGT)*Weff + NSint *(DMDG - DMCGT)*Weff
|
|
|
|
|
PSeff = NSend *2*(DMCG - DMCGT) + NSint*2*(DMCG - DMCGT)
|
|
|
|
|
ADeff = NDend *(DMCG + DMCI - DMCGT) * Weff + NDint *(DMCG - DMCGT)*Weff
|
|
|
|
|
PDeff = NDend * ( 2*(DMCG + DMCI - DMCGT) * Weff) + NDint*2*(DMCG - DMCGT)
|
|
|
|
|
elif mt['style.geomod'] == 7:
|
|
|
|
|
ASeff = NSend *(DMDG - DMCGT)*Weff + NSint *(DMCG - DMCGT)*Weff
|
|
|
|
|
PSeff = NSend *2*(DMDG - DMCGT) + NSint*2*(DMCG - DMCGT)
|
|
|
|
|
ADeff = NDend *(DMCG - DMCGT)*Weff + NDint *(DMCG - DMCGT)*Weff
|
|
|
|
|
PDeff = NDend *2*(DMCG - DMCGT) + NDint*2*(DMCG - DMCGT)
|
|
|
|
|
elif mt['style.geomod'] == 8:
|
|
|
|
|
ASeff = NSend *(DMDG - DMCGT)*Weff + NSint *(DMCG - DMCGT)*Weff
|
|
|
|
|
PSeff = NSend *2*(DMDG - DMCGT) + NSint*2*(DMCG - DMCGT)
|
|
|
|
|
ADeff = NDend *(DMDG - DMCGT)*Weff + NDint *(DMCG - DMCGT)*Weff
|
|
|
|
|
PDeff = NDend *2*(DMDG - DMCGT) + NDint*2*(DMCG - DMCGT)
|
|
|
|
|
elif mt['style.geomod'] == 9:
|
|
|
|
|
ASeff = (DMCG + DMCI - DMCGT) * Weff + (NF-1) *(DMCG - DMCGT)*Weff
|
|
|
|
|
PSeff = (2*(DMCG + DMCI - DMCGT) + Weff) + (NF-1)*2*(DMCG - DMCGT)
|
|
|
|
|
ADeff = NF *(DMCG - DMCGT)*Weff
|
|
|
|
|
PDeff = NF* 2*(DMCG - DMCGT)
|
|
|
|
|
elif mt['style.geomod'] == 10:
|
|
|
|
|
ASeff = NF *(DMCG - DMCGT)*Weff
|
|
|
|
|
PSeff = NF* 2*(DMCG - DMCGT)
|
|
|
|
|
ADeff = (DMCG + DMCI - DMCGT) * Weff + (NF-1) *(DMCG - DMCGT)*Weff
|
|
|
|
|
PDeff = (2*(DMCG + DMCI - DMCGT) + Weff) + (NF-1)*2*(DMCG - DMCGT)
|
|
|
|
|
else:
|
|
|
|
|
raise Error( 3, 'Stack.computeLayoutParasitics(): Unknown GEOMOD %s for meta-transistor \"%s\".'
|
|
|
|
|
% ( mt['style.geomod'], mt['gate'].getName() ) )
|
|
|
|
|
|
|
|
|
|
mt['parasitics.ASeff'] = ASeff
|
|
|
|
|
mt['parasitics.PSeff'] = PSeff
|
|
|
|
|
mt['parasitics.ADeff'] = ADeff
|
|
|
|
|
mt['parasitics.PDeff'] = PDeff
|
|
|
|
|
|
|
|
|
|
return
|