skywater-pdk/docs/rules/periphery/periphery.csv

1	0 Errors			10
2	Rule	Section G2: Design Rules for SKY130*	Use
3				sky130
4		Section G2a. Periphery Rules
5
6	(x.-)	General
7
8
9		The following are exempt from x.22 violations: _techCD_ , inductor.dg, modulecut, capacitors and s8blerf
10		The 'notPublicCell' switch will deactivate this rule
11
12
13	Note: some rules contain correction factors to compensate possible mask defect and unpredicted process biases
14
15	(dnwell.-)	Deep Nwell		sky130
16		Function: Define deep nwell for isolating pwell and noise immunity
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42	(nwell.-)	Nwell		sky130
43		Function: Define nwell implant regions
44
45		Nwells can merge over deep nwell if spacing too small (as in rule nwell.2)
46		Spacing between nwell and deep nwell on the same net is set by the sum of the rules nwell.2 and nwell.5. By default, DRC run on a cell checks for the separate-net spacing, when nwell and deep nwell nets are separate within the cell hierarchy and are joined in the upper hierarchy. To allow net names to be joined and make the same-net rule applicable in this case, the "joinNets" switch should be turned on.
47
48
49		waffle_chip
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52
53
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55
56
57
58
59
60
61
62
63
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71	(pwbm.-)	Pwbm		sky130
72		Function: Define p-well block
73
74
75
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77
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79
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84
85
86
87
88	(pwdem.-)	Pwdem		sky130
89
90
91
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94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110	(hvtp.-)	Hvtp		sky130
111		Function: Define Vt adjust implant region for high Vt LV PMOS;
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113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137	(hvtr.-)	Hvtr		sky130
138		Function: Define low VT adjust implant region for pmedlvtrf;
139
140
141
142	(lvtn.-)	Lvtnm		sky130
143		Function: Define regions to block Vt adjust implant for low Vt LV PMOS/NMOS, SONOS FETs and Native NMOS
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145
146
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148
149
150
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154
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159
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161
162
163
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165
166
167
168
169
170
171
172
173
174
175
176
177	(ncm.-)	Ncm		sky130
178		Function: Define Vt adjust implant region for LV NMOS in the core of NVSRAM
179
180
181
182
183
184
185
186
187
188
189
190
191
192	(difftap.-)	Diff/tap		sky130
193		Function: Defines active regions and contacts to substrate
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195
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197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219	(tunm.-)	Tunnel		sky130
220		Function: Defines SONOS FETs
221
222
223
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225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247	(poly.-)	Poly		sky130
248		Function: Defines FET gates, interconnects and resistors
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250
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267
268
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270
271
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273
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282	(rpm.-)	P+ Poly resistor		sky130
283		Function: Defines p+ poly resistors
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285
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295
296
297
298
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302
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307
308	(varac.-)	Varactor		sky130
309		Function: Defines varactors
310
311
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333
334	(photo.-)	Photo diode		sky130
335		Function: Photo diode for sensing light
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362	(npc.-)	Nitride Poly Cut (NPC)		sky130
363		Function: Defines nitride openings to contact poly and Li1
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384	(n/ psd.-)	N+/P+ Source/Drain Implants (Nsdm and Psdm)		sky130
385		Function: Defines opening for N+/P+ implants
386
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389
390
391
392
393
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396
397
398
399	(licon.-)	Local Interconnect Contact (Licon)		sky130
400		Function: Defines contacts between poly/diff/tap and Li1
401
402
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446	(li.-.-)	Local Interconnect (LI)		sky130
447		Function: Defines local interconnect to diff/tap and poly
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449
450
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452
453
454
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460
461	(ct.-)	Metal contact (Mcon)		sky130
462		Function: Defines contact between Li1 and met1
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467
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469
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471
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473
474	(capm.-)	MIM Capacitor (Capm)		sky130
475		Function: Defines MIM capacitor
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477
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501	(vpp.-)	VPP Capacitor		sky130
502		Function: Defines VPP capacitor
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509
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511
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527	(m1.-)	Met1		sky130
528		Function: Defines first level of metal interconnects, buses etc;
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540
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555
556	(via.-)	Via		sky130
557		Function: Defines contact between met1 and met2
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559
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561
562
563
564
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566
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568
569
570
571
572
573	(m2.-)	Metal 2		sky130
574		Function: Defines second level of metal interconnects, buses etc
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597
598	(via2.-)	Via2		sky130
599		Function: Via2 connects met2 to met3 in the SKY130T*/SKY130P*/SP8Q/SP8P* flows and met2/capm to met3 in the SKY130DI* flow.
600
601
602
603
604
605
606
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608
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610
611
612
613
614
615	(m3.-)	Metal 3		sky130
616		Function: Defines third level of metal interconnects, buses etc
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618
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621
622
623
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629
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631
632
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634
635
636	(via3.-)	Via3		sky130
637		Function: Via3 connects met3 to met4 in the SKY130Q*/SKY130P*/SP8Q/SP8P* flow
638
639
640	(nsm.-)	Nitride Seal Mask		sky130
641
642
643	(indm.-)	Inductor metal		sky130
644		Function: Defines third level of metal interconnects, buses and inductor; top_indmMetal is met3 for SKY130D* flows; Similarly top_padVia is Via2 for SKY130D*
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646
647
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650
651
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653
654
655
656	(m4.-)	Metal 4		sky130
657		Function: Defines Fourth level of metal interconnects;
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668
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685
686	(via4.-)	Via4		sky130
687		Function: Via4 connects met4 to met5 in the SKY130P*/SP8P* flow
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689
690	(m5.-)	Metal 5		sky130
691		Function: Defines Fifth level of metal interconnects;
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693
694	(pad.-)	Pad		sky130
695		Function: Opens the passivation
696
697
698	(rdl.-)	Cu Inductor		sky130
699		Function: Defines the Cu Inductor. Connects to met5 through the pad opening
700
701
702	(mf.-)	Metal Fuse		sky130
703		Function: Defines metal fuses
704		For SKY130D* and SKY130TM* CADflow use MM2 for Metal Fuse
705		For SP8P*/SKY130P* (PLM) CADflow use MM4 for Metal Fuse
706
707
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731
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736
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738	(hvi.-)	HVI		sky130
739		Function: Defines thick oxide for high voltage devices
740
741
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743
744
745
746
747
748
749
750
751
752	(nwell.-)	High Voltage Nwell		sky130
753		Function: Defines rules for HV nwell; All nwell connected to voltages greater than 1.8V must be enclosed by hvi; Nets connected to LV nwell or nwell overlapping hvi but connected to LV voltages (i.e 1.8V) should be tagged "lv_net" using text.dg; This tag should be only on Li layer
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769	(difftap.-)	High Voltage Diff/Tap		sky130
770		Function: Defines rules for HV diff/tap
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810	(poly.-)	High Voltage Poly		sky130
811		Function: Defines rules for HV poly
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813
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815
816
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818
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820
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822
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825
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827
828
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830
831
832
833
834
835
836	(hvntm.-)	Hvntm		sky130
837		Function: Defines tip implants for the HV NMOS
838
839
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841
842
843
844
845
846
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848
849
850
851
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860
861
862
863
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865
866
867
868	(denmos.-)	Denmos		sky130
869		Function: Defines rules for the 16V Drain extended NMOS devices
870
871
872
873
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875
876
877
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881
882
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885
886
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890
891
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893
894
895	(depmos.-)	Depmos		sky130
896		Function: Defines rules for the 16V Drain extended NMOS devices
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898
899
900
901
902
903
904
905
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907
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909
910
911
912
913
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915
916
917
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920
921
922
923
924	(extd.-)	Extended Drain		sky130
925		Function: Defines rules :drc_tag:`areaid.en`
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940	(hv.-.-)	High Voltage Rules		sky130
941
942
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950
951
952
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991
992
993
994
995
996
997
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1000
1001
1002	(vhvi.-.-)	VHVI - Very HV ID and Rules		sky130
1003		Function: Identify nets working between 12-16V
1004
1005
1006	(uhvi.-.-)	UHVI - Ultra HV ID and Rules		sky130
1007		Function: Identify nets working between 20V
1008
1009
1010	(ulvt-.-)	:drc_tag:`areaid.low_vt` for UHV Diodes		sky130
1011		Function: Identify dnwdiodehv_Psub(BV~60V)
1012				NA
1013
1014	(pwres.-.-)	Pwell resistor		sky130
1015		Function: Identify pwell resistors
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041	(rfdiode.-.-)	Areaid.re for RF Diodes		sky130
1042		Function: Identify RF diodes; Used for RCX
1043
1044
1045
1046		Allowed PNP layout
1047		Layout: pnppar
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072		Allowed NPN layout
1073		Layout: npnpar1x1
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
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1101