Added support for the 3.3V native nFET device (in addition to the
5.0V native nFET device). There does not appear to be any physical
difference between these devices, but they have different length
and width ranges in the model bins, and have different models.
diff --git a/sky130/magic/sky130.tech b/sky130/magic/sky130.tech
index 75c77c5..06e7b15 100644
--- a/sky130/magic/sky130.tech
+++ b/sky130/magic/sky130.tech
@@ -51,7 +51,7 @@
# sky130_fd_pr__pfet_01v8_lvt pfetlvt low Vt pFET
# sky130_fd_pr__pfet_01v8_mvt pfetmvt med Vt pFET
# sky130_fd_pr__pfet_01v8_hvt pfethvt high Vt pFET
-# sky130_fd_pr__nfet_03v3_nvt --- native nFET
+# sky130_fd_pr__nfet_03v3_nvt nnfet native nFET
# sky130_fd_pr__pfet_g5v0d10v5 mvpfet thickox pFET
# sky130_fd_pr__nfet_g5v0d10v5 mvnfet thickox nFET
# sky130_fd_pr__nfet_01v8_nvt mvnnfet thickox native nFET
@@ -159,10 +159,10 @@
-active scpmos,scptransistor,scpfet
-active scpmoshvt,scpfethvt
-active ppu,ppufet,srampfet
- active nnmos,nntransistor
+ active nnmos,nntransistor,nnfet
active mvnmos,mvntransistor,mvnfet
active mvpmos,mvptransistor,mvpfet
- active mvnnmos,mvnntransistor,mvnnfet,nnfet
+ active mvnnmos,mvnntransistor,mvnnfet
-active mvnmosesd,mvntransistoresd,mvnfetesd
-active mvpmosesd,mvptransistoresd,mvpfetesd
active varactor,varact,var
@@ -373,13 +373,13 @@
allwellplane nwell
allnwell nwell,obswell,pnp
- allnfets nfet,npass,npd,scnfet,mvnfet,mvnfetesd,mvnnfet,nfetlvt,nsonos
+ allnfets nfet,npass,npd,scnfet,mvnfet,mvnfetesd,mvnnfet,nnfet,nfetlvt,nsonos
allpfets pfet,ppu,scpfet,scpfethvt,mvpfet,mvpfetesd,pfethvt,pfetlvt,pfetmvt
allfets allnfets,allpfets,varactor,mvvaractor,varhvt,corenvar,corepvar
- allfetsstd nfet,mvnfet,mvnfetesd,mvnnfet,nfetlvt,pfet,mvpfet,mvpfetesd,pfethvt,pfetlvt,pfetmvt
+ allfetsstd nfet,mvnfet,mvnfetesd,mvnnfet,nnfet,nfetlvt,pfet,mvpfet,mvpfetesd,pfethvt,pfetlvt,pfetmvt
allfetsspecial scnfet,scpfet,scpfethvt
allfetscore npass,npd,nsonos,ppu,corenvar,corepvar
- allfetsnolvt nfet,npass,npd,scnfet,mvnfet,mvnfetesd,mvnnfet,nsonos,pfet,ppu,scpfet,scpfethvt,mvpfet,mvpfetesd,pfethvt,pfetmvt,varactor,mvvaractor,varhvt,corenvar
+ allfetsnolvt nfet,npass,npd,scnfet,mvnfet,mvnfetesd,mvnnfet,nnfet,nsonos,pfet,ppu,scpfet,scpfethvt,mvpfet,mvpfetesd,pfethvt,pfetmvt,varactor,mvvaractor,varhvt,corenvar
allnactivenonfet *ndiff,*nsd,*ndiode,*nndiode,*mvndiff,*mvnsd,*mvndiode,*ndiodelvt
allnactive allnactivenonfet,allnfets
@@ -403,10 +403,10 @@
allpdifflvnonfet *pdif,*psd,*pdiode,pdiffres,*pdiodelvt,*pdiodehvt
alldifflvnonfet allndifflvnonfet,allpdifflvnonfet
- allndiffmv *mvndif,*mvnsd,*mvndiode,*nndiode,mvndiffres,mvnfet,mvnfetesd,mvnnfet
+ allndiffmv *mvndif,*mvnsd,*mvndiode,*nndiode,mvndiffres,mvnfet,mvnfetesd,mvnnfet,nnfet
allpdiffmv *mvpdif,*mvpsd,*mvpdiode,mvpdiffres,mvpfet,mvpfetesd
alldiffmv allndiffmv,allpdiffmv
- allndiffmvnontap *mvndif,*mvndiode,*nndiode,mvndiffres,mvnfet,mvnfetesd,mvnnfet
+ allndiffmvnontap *mvndif,*mvndiode,*nndiode,mvndiffres,mvnfet,mvnfetesd,mvnnfet,nnfet
allpdiffmvnontap *mvpdif,*mvpdiode,mvpdiffres,mvpfet,mvpfetesd
alldiffmvnontap allndiffmvnontap,allpdiffmvnontap
allndiffmvnonfet *mvndif,*mvnsd,*mvndiode,*nndiode,mvndiffres
@@ -492,6 +492,7 @@
nfetlvt ntransistor ntransistor_stripes implant1
nsonos ntransistor implant3
varhvt polysilicon ndiff_in_nwell implant2
+ nnfet ntransistor ndiff_in_nwell
mvndiff ndiffusion hvndiff_mask
mvpdiff pdiffusion hvpdiff_mask
@@ -843,10 +844,18 @@
calma 93 44
#----------------------------------------------------------------
+# LVID
+#----------------------------------------------------------------
+
+ layer LVID nnfet
+ grow 100
+ calma 81 60
+
+#----------------------------------------------------------------
# LVTN
#----------------------------------------------------------------
- layer LVTN pfetlvt,nfetlvt,mvvar,mvnnfet,nsonos,*pdiodelvt,*ndiodelvt,*nndiode
+ layer LVTN pfetlvt,nfetlvt,mvvar,mvnnfet,nnfet,nsonos,*pdiodelvt,*ndiodelvt,*nndiode
grow 180
bridge 380 380
grow 185
@@ -984,7 +993,7 @@
grow 185
layer HVNTM
- bloat-all mvnfet,mvnfetesd,mvnnfet,*mvndiode,mvrdn,*nndiode *mvndiff
+ bloat-all mvnfet,mvnfetesd,mvnnfet,nnfet,*mvndiode,mvrdn,*nndiode *mvndiff
bloat-all mvvaractor *mvnsd
and-not hvntm_block
grow 185
@@ -1632,7 +1641,7 @@
grow 185
templayer hvntm_generate
- bloat-all mvnfet,mvnfetesd,mvnnfet,*mvndiode,mvrdn,*nndiode *mvndiff
+ bloat-all mvnfet,mvnfetesd,mvnnfet,nnfet,*mvndiode,mvrdn,*nndiode *mvndiff
bloat-all mvvaractor *mvnsd
and-not hvntm_block
grow 185
@@ -2290,11 +2299,6 @@
grow 420
shrink 420
- # Always draw pwell in deep-nwell P-regions
- layer pwell DNWELL
- and-not NWELL
- and-not NPNID
-
layer dnwell DNWELL
labels DNWELL
@@ -2794,7 +2798,12 @@
and-not mvnnfetarea
labels DIFF
+ layer nnfet mvnnfetarea
+ and LVID
+ labels DIFF
+
layer mvnnfet mvnnfetarea
+ and-not LVID
labels DIFF
templayer mvnsdarea TAP
@@ -3823,6 +3832,8 @@
calma DIFFRES 65 13
calma POLY 66 20
calma POLYMOD 66 83
+ # 3.3V native FET ID mark
+ calma LVID 81 60
# Diode ID mark
calma DIODE 81 23
# Bipolar NPN mark
@@ -4033,7 +4044,7 @@
width *ndiff,nfet,scnfet,npd,npass,*nsd,*ndiode,ndiffres,*pdiff,pfet,scpfet,scpfethvt,ppu,*psd,*pdiode,pdiffres,fomfill \
150 "Diffusion width < %d (diff/tap.1)"
- width *mvndiff,mvnfet,mvnfetesd,mvnnfet,*mvndiode,*nndiode,mvndiffres,*mvpdiff,mvpfet,mvpfetesd,*mvpdiode,mvpdiffres 290 \
+ width *mvndiff,mvnfet,mvnfetesd,mvnnfet,nnfet,*mvndiode,*nndiode,mvndiffres,*mvpdiff,mvpfet,mvpfetesd,*mvpdiode,mvpdiffres 290 \
"MV Diffusion width < %d (diff/tap.14)"
width *mvnsd,*mvpsd 150 "MV Tap width < %d (diff/tap.1)"
@@ -4048,13 +4059,13 @@
"MV Diffusion spacing < %d (diff/tap.15a)"
spacing alldiffmv *mvnsd,*mvpsd 270 touching_ok \
"MV Diffusion to MV tap spacing < %d (diff/tap.3)"
- spacing *mvndiff,mvnfet,mvnfetesd,mvnnfet,*mvndiode,*nndiode,mvndiffres,mvvar *mvpsd 370 \
+ spacing *mvndiff,mvnfet,mvnfetesd,mvnnfet,nnfet,*mvndiode,*nndiode,mvndiffres,mvvar *mvpsd 370 \
touching_ok "MV P-Diffusion to MV N-tap spacing < %d (diff/tap.15b)"
spacing *mvnsd,*mvpdiff,mvpfet,mvpfetesd,mvvar,*mvpdiode *mvpsd,*psd 760 touching_illegal \
"MV Diffusion in N-well to P-tap spacing < %d (diff/tap.20 + diff/tap.17,19)"
spacing *ndiff,*ndiode,nfet allnwell 340 touching_illegal \
"N-Diffusion spacing to N-well < %d (diff/tap.9)"
- spacing *mvndiff,*mvndiode,mvnfet,mvnnfet allnwell 340 touching_illegal \
+ spacing *mvndiff,*mvndiode,mvnfet,mvnnfet,nnfet allnwell 340 touching_illegal \
"N-Diffusion spacing to N-well < %d (diff/tap.9)"
spacing *psd allnwell 130 touching_illegal \
"P-tap spacing to N-well < %d (diff/tap.11)"
@@ -4138,7 +4149,7 @@
spacing npres *nsd 480 touching_illegal \
"poly resistor spacing to N-tap < %d (poly.9)"
overhang *ndiff,rndiff nfet,scnfet,npd,npass 250 "N-Diffusion overhang of nFET < %d (poly.7)"
- overhang *mvndiff,mvrndiff mvnfet,mvnnfet 250 \
+ overhang *mvndiff,mvrndiff mvnfet,mvnnfet,nnfet 250 \
"N-Diffusion overhang of nFET < %d (poly.7)"
overhang *pdiff,rpdiff pfet,scpfet,ppu 250 "P-Diffusion overhang of pmos < %d (poly.7)"
overhang *mvpdiff,mvrpdiff mvpfet,mvpfetesd 250 "P-Diffusion overhang of pmos < %d (poly.7)"
@@ -4236,7 +4247,7 @@
"Diffusion contact to standard cell gate < %d (licon.11)"
spacing ndc,pdc npd,npass,ppu 40 touching_illegal \
"Diffusion contact to SRAM gate < %d (licon.11)"
- spacing mvndc,mvpdc mvnfet,mvnfetesd,mvnnfet,mvpfet,mvpfetesd 55 touching_illegal \
+ spacing mvndc,mvpdc mvnfet,mvnfetesd,mvnnfet,nnfet,mvpfet,mvpfetesd 55 touching_illegal \
"Diffusion contact to gate < %d (licon.11)"
spacing nsc varactor,varhvt 250 touching_illegal \
"Diffusion contact to varactor gate < %d (licon.10)"
@@ -4555,7 +4566,7 @@
"Butting P-tap spacing to NMOS gate < %d (poly.6)"
edge4way *nsd *pdiff 300 ~(pfet,ppu,scpfet,scpfethvt,pfetlvt,pfetmvt)/a *nsd 300 \
"Butting N-tap spacing to PMOS gate < %d (poly.6)"
- edge4way *mvpsd *mvndiff 300 ~(mvnfet,mvnfetesd,mvnnfet)/a *mvpsd 300 \
+ edge4way *mvpsd *mvndiff 300 ~(mvnfet,mvnfetesd,mvnnfet,nnfet)/a *mvpsd 300 \
"Butting MV P-tap spacing to MV NMOS gate < %d (poly.6)"
edge4way *mvnsd *mvpdiff 300 ~(mvpfet,mvpfetesd)/a *mvnsd 300 \
"Butting MV N-tap spacing to MV PMOS gate < %d (poly.6)"
@@ -5245,6 +5256,9 @@
device msubcircuit sky130_fd_pr__nfet_05v0_nvt mvnnfet \
*mvndiff,mvndiffres *mvndiff,mvndiffres pwell,space/w error l=l w=w \
a1=as p1=ps a2=ad p2=pd
+ device msubcircuit sky130_fd_pr__nfet_03v3_nvt nnfet \
+ *mvndiff,mvndiffres *mvndiff,mvndiffres pwell,space/w error l=l w=w \
+ a1=as p1=ps a2=ad p2=pd
device msubcircuit sky130_fd_pr__esd_nfet_g5v0d10v5 mvnfetesd \
*mvndiff,mvndiffres *mvndiff,mvndiffres pwell,space/w error l=l w=w \
a1=as p1=ps a2=ad p2=pd
@@ -5355,6 +5369,7 @@
device mosfet sky130_fd_pr__nfet_g5v0d10v5 mvnfet mvndiff,mvndiffres,mvndc pwell,space/w
device mosfet sky130_fd_pr__esd_nfet_g5v0d10v5 mvnfetesd mvndiff,mvndiffres,mvndc pwell,space/w
device mosfet sky130_fd_pr__nfet_05v0_nvt mvnnfet *mvndiff,mvndiffres pwell,space/w
+ device mosfet sky130_fd_pr__nfet_03v3_nvt nnfet *mvndiff,mvndiffres pwell,space/w
# These devices always extract as subcircuits
device subcircuit sky130_fd_pr__cap_var_lvt varactor *nndiff nwell error l=l w=w
