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skywater-pdk/docs/rules/device-details/cap_var/index.rst

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docs: Adding details for various supported devices. Each type of device includes; - General device description - Details about the spice model and operating conditions. - Images of the symbols for the device. - Image showing the cross-section of the device. The devices included are; - Bipolar (NPN) - Bipolar (PNP) - MiM Capacitor - Vertical Parallel Plate (VPP) capacitors - SONOS cells - SRAM cells - Diodes - 11V/16V NMOS FET - 1.8V NMOS FET - 1.8V low-VT NMOS FET - 20V NMOS FET - 20V isolated NMOS FET - 20V native NMOS FET - 20V NMOS zero-VT FET - 3.0V and 5.0V native NMOS FET - 5.0V/10.5V NMOS FET - NMOS ESD FET - 10V/16V PMOS FET - 1.8V PMOS FET - 1.8V high-VT PMOS FET - 1.8V low-VT PMOS FET - 20V PMOS FET - 5.0V/10.5V PMOS FET - Generic Resistors - P- poly precision resistors - P+ poly precision resistors - Varactors Signed-off-by: Tim 'mithro' Ansell <me@mith.ro> Temp.
2020-07-27 15:38:57 -05:00
Varactors
---------
Spice Model Information
~~~~~~~~~~~~~~~~~~~~~~~
docs: Renaming so docs match `sky130_fd_pr` cell names. * Make the directory names consistent with cell names. * Add `:model:` and `:cell:` around object names. * Small other cleanups. Signed-off-by: Tim 'mithro' Ansell <me@mith.ro>
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- Cell Name: :cell:`capbn_b`
- Model Name: :model:`sky130_fd_pr__cap_var_lvt`, :model:`sky130_fd_pr__cap_var_hvt`
docs: Adding details for various supported devices. Each type of device includes; - General device description - Details about the spice model and operating conditions. - Images of the symbols for the device. - Image showing the cross-section of the device. The devices included are; - Bipolar (NPN) - Bipolar (PNP) - MiM Capacitor - Vertical Parallel Plate (VPP) capacitors - SONOS cells - SRAM cells - Diodes - 11V/16V NMOS FET - 1.8V NMOS FET - 1.8V low-VT NMOS FET - 20V NMOS FET - 20V isolated NMOS FET - 20V native NMOS FET - 20V NMOS zero-VT FET - 3.0V and 5.0V native NMOS FET - 5.0V/10.5V NMOS FET - NMOS ESD FET - 10V/16V PMOS FET - 1.8V PMOS FET - 1.8V high-VT PMOS FET - 1.8V low-VT PMOS FET - 20V PMOS FET - 5.0V/10.5V PMOS FET - Generic Resistors - P- poly precision resistors - P+ poly precision resistors - Varactors Signed-off-by: Tim 'mithro' Ansell <me@mith.ro> Temp.
2020-07-27 15:38:57 -05:00
- Model Type: subcircuit
Operating Voltages where SPICE models are valid
- \|V\ :sub:`0` – V\ :sub:`1`\ \| = 0 to 2.0V
Details
~~~~~~~
The following devices are available; they are subcircuits with the N-well to P-substrate diodes built into the model:
docs: Renaming so docs match `sky130_fd_pr` cell names. * Make the directory names consistent with cell names. * Add `:model:` and `:cell:` around object names. * Small other cleanups. Signed-off-by: Tim 'mithro' Ansell <me@mith.ro>
2020-09-28 15:08:32 -05:00
- :model:`sky130_fd_pr__cap_var_lvt` - low VT PMOS device option
- :model:`sky130_fd_pr__cap_var_hvt` - high VT PMOS device option
docs: Adding details for various supported devices. Each type of device includes; - General device description - Details about the spice model and operating conditions. - Images of the symbols for the device. - Image showing the cross-section of the device. The devices included are; - Bipolar (NPN) - Bipolar (PNP) - MiM Capacitor - Vertical Parallel Plate (VPP) capacitors - SONOS cells - SRAM cells - Diodes - 11V/16V NMOS FET - 1.8V NMOS FET - 1.8V low-VT NMOS FET - 20V NMOS FET - 20V isolated NMOS FET - 20V native NMOS FET - 20V NMOS zero-VT FET - 3.0V and 5.0V native NMOS FET - 5.0V/10.5V NMOS FET - NMOS ESD FET - 10V/16V PMOS FET - 1.8V PMOS FET - 1.8V high-VT PMOS FET - 1.8V low-VT PMOS FET - 20V PMOS FET - 5.0V/10.5V PMOS FET - Generic Resistors - P- poly precision resistors - P+ poly precision resistors - Varactors Signed-off-by: Tim 'mithro' Ansell <me@mith.ro> Temp.
2020-07-27 15:38:57 -05:00
The varactors are used as tunable capacitors, major e-test parameters are listed below. Further details on the device models and their usage are in the SKY130 process Family Spice Models (002-21997), which can be obtained from SkyWater upon request.
docs: Renaming so docs match `sky130_fd_pr` cell names. * Make the directory names consistent with cell names. * Add `:model:` and `:cell:` around object names. * Small other cleanups. Signed-off-by: Tim 'mithro' Ansell <me@mith.ro>
2020-09-28 15:08:32 -05:00
.. include:: cap_var-table0.rst
docs: Adding details for various supported devices. Each type of device includes; - General device description - Details about the spice model and operating conditions. - Images of the symbols for the device. - Image showing the cross-section of the device. The devices included are; - Bipolar (NPN) - Bipolar (PNP) - MiM Capacitor - Vertical Parallel Plate (VPP) capacitors - SONOS cells - SRAM cells - Diodes - 11V/16V NMOS FET - 1.8V NMOS FET - 1.8V low-VT NMOS FET - 20V NMOS FET - 20V isolated NMOS FET - 20V native NMOS FET - 20V NMOS zero-VT FET - 3.0V and 5.0V native NMOS FET - 5.0V/10.5V NMOS FET - NMOS ESD FET - 10V/16V PMOS FET - 1.8V PMOS FET - 1.8V high-VT PMOS FET - 1.8V low-VT PMOS FET - 20V PMOS FET - 5.0V/10.5V PMOS FET - Generic Resistors - P- poly precision resistors - P+ poly precision resistors - Varactors Signed-off-by: Tim 'mithro' Ansell <me@mith.ro> Temp.
2020-07-27 15:38:57 -05:00
There is no equivalent varactor for 5V operation. The NHV or PHV devices should be connected as capacitors for use at 5V.
The symbols for the varactors are shown below:
docs: Renaming so docs match `sky130_fd_pr` cell names. * Make the directory names consistent with cell names. * Add `:model:` and `:cell:` around object names. * Small other cleanups. Signed-off-by: Tim 'mithro' Ansell <me@mith.ro>
2020-09-28 15:08:32 -05:00
|symbol-cap_var-a| |symbol-cap_var-b|
docs: Adding details for various supported devices. Each type of device includes; - General device description - Details about the spice model and operating conditions. - Images of the symbols for the device. - Image showing the cross-section of the device. The devices included are; - Bipolar (NPN) - Bipolar (PNP) - MiM Capacitor - Vertical Parallel Plate (VPP) capacitors - SONOS cells - SRAM cells - Diodes - 11V/16V NMOS FET - 1.8V NMOS FET - 1.8V low-VT NMOS FET - 20V NMOS FET - 20V isolated NMOS FET - 20V native NMOS FET - 20V NMOS zero-VT FET - 3.0V and 5.0V native NMOS FET - 5.0V/10.5V NMOS FET - NMOS ESD FET - 10V/16V PMOS FET - 1.8V PMOS FET - 1.8V high-VT PMOS FET - 1.8V low-VT PMOS FET - 20V PMOS FET - 5.0V/10.5V PMOS FET - Generic Resistors - P- poly precision resistors - P+ poly precision resistors - Varactors Signed-off-by: Tim 'mithro' Ansell <me@mith.ro> Temp.
2020-07-27 15:38:57 -05:00
The cross-section of the varactor is shown below:
docs: Renaming so docs match `sky130_fd_pr` cell names. * Make the directory names consistent with cell names. * Add `:model:` and `:cell:` around object names. * Small other cleanups. Signed-off-by: Tim 'mithro' Ansell <me@mith.ro>
2020-09-28 15:08:32 -05:00
|cross-section-cap_var|
docs: Adding details for various supported devices. Each type of device includes; - General device description - Details about the spice model and operating conditions. - Images of the symbols for the device. - Image showing the cross-section of the device. The devices included are; - Bipolar (NPN) - Bipolar (PNP) - MiM Capacitor - Vertical Parallel Plate (VPP) capacitors - SONOS cells - SRAM cells - Diodes - 11V/16V NMOS FET - 1.8V NMOS FET - 1.8V low-VT NMOS FET - 20V NMOS FET - 20V isolated NMOS FET - 20V native NMOS FET - 20V NMOS zero-VT FET - 3.0V and 5.0V native NMOS FET - 5.0V/10.5V NMOS FET - NMOS ESD FET - 10V/16V PMOS FET - 1.8V PMOS FET - 1.8V high-VT PMOS FET - 1.8V low-VT PMOS FET - 20V PMOS FET - 5.0V/10.5V PMOS FET - Generic Resistors - P- poly precision resistors - P+ poly precision resistors - Varactors Signed-off-by: Tim 'mithro' Ansell <me@mith.ro> Temp.
2020-07-27 15:38:57 -05:00
docs: Renaming so docs match `sky130_fd_pr` cell names. * Make the directory names consistent with cell names. * Add `:model:` and `:cell:` around object names. * Small other cleanups. Signed-off-by: Tim 'mithro' Ansell <me@mith.ro>
2020-09-28 15:08:32 -05:00
.. |symbol-cap_var-a| image:: symbol-cap_var-a.svg
.. |symbol-cap_var-b| image:: symbol-cap_var-b.svg
.. |cross-section-cap_var| image:: cross-section-cap_var.svg
docs: Adding details for various supported devices. Each type of device includes; - General device description - Details about the spice model and operating conditions. - Images of the symbols for the device. - Image showing the cross-section of the device. The devices included are; - Bipolar (NPN) - Bipolar (PNP) - MiM Capacitor - Vertical Parallel Plate (VPP) capacitors - SONOS cells - SRAM cells - Diodes - 11V/16V NMOS FET - 1.8V NMOS FET - 1.8V low-VT NMOS FET - 20V NMOS FET - 20V isolated NMOS FET - 20V native NMOS FET - 20V NMOS zero-VT FET - 3.0V and 5.0V native NMOS FET - 5.0V/10.5V NMOS FET - NMOS ESD FET - 10V/16V PMOS FET - 1.8V PMOS FET - 1.8V high-VT PMOS FET - 1.8V low-VT PMOS FET - 20V PMOS FET - 5.0V/10.5V PMOS FET - Generic Resistors - P- poly precision resistors - P+ poly precision resistors - Varactors Signed-off-by: Tim 'mithro' Ansell <me@mith.ro> Temp.
2020-07-27 15:38:57 -05:00