Netlist export¶

GDSFactory exports netlists in the form of gds-extracted netlist's and convert it to Spectre, Spice and Xyce simulator schematic file formats tHanks to the VLSIR library.

Simulator and Analysis Support¶

Each spice-class simulator includes its own netlist syntax and opinions about the specification for analyses. See

Analysis	Spectre	Xyce	NgSpice
Op	✅	✅	✅
Dc	✅	✅
Tran	✅	✅	✅
Ac	✅	✅	✅
Noise			✅
Sweep
Monte Carlo
Custom

from io import StringIO

from gdsfactory.samples.demo.lvs import pads_correct

import gplugins.vlsir as gs
from gplugins.klayout.get_netlist import get_netlist

c = pads_correct()
c.plot()

png

gdspath = c.write_gds()

# get the netlist
kdbnetlist = get_netlist(gdspath)

# convert it to a VLSIR Package
pkg = gs.kdb_vlsir(kdbnetlist, domain="gplugins.klayout.example")

Wrote '/home/runner/work/gplugins/gplugins/gplugins/klayout/layers.lyp'
/home/runner/work/gplugins/gplugins/gplugins/klayout/d25/generic.lyd25
Wrote '/home/runner/work/gplugins/gplugins/gplugins/klayout/tech.lyt'

Spectre RF¶

out = StringIO()
gs.export_netlist(pkg, dest=out, fmt="spectre")
print(out.getvalue())

// `circuit.Package` `gplugins.klayout.example`
// Generated by `vlsirtools.SpectreNetlister`
//

subckt straight_gdsfactorypcomponentspwaveguidespstraight_L367_12efeeb9 
  + 1 
  + // No parameters


ends

subckt straight_gdsfactorypcomponentspwaveguidespstraight_L190_c5fd8eec 
  + 1 
  + // No parameters


ends

subckt straight_gdsfactorypcomponentspwaveguidespstraight_L3_N_51c3cb9c 
  + 1 
  + // No parameters


ends

subckt wire_corner_gdsfactorypcomponentspwaveguidespwire_CSmet_507ea7e9 
  + 1 
  + // No parameters


ends

subckt straight_gdsfactorypcomponentspwaveguidespstraight_L380_9b8fde9a 
  + 1 
  + // No parameters


ends

subckt taper_gdsfactorypcomponentsptapersptaper_L10_W100_W10_L_e6a63921 
  + 1 
  + // No parameters


ends

subckt pad_gdsfactorypcomponentsppadsppad_S100_100_LMTOP_BLNon_457de54c 
  + 1 2 
  + // No parameters


ends

subckt pads_correct_Ppad_CSmetal3 
  + // No ports 
  + // No parameters

  1
  + // Ports: 
  + ( tl,tr tl )
  +  pad_gdsfactorypcomponentsppadsppad_S100_100_LMTOP_BLNon_457de54c 
  + // No parameters

  2
  + // Ports: 
  + ( tl,tr tr )
  +  pad_gdsfactorypcomponentsppadsppad_S100_100_LMTOP_BLNon_457de54c 
  + // No parameters

  3
  + // Ports: 
  + ( bl,br br )
  +  pad_gdsfactorypcomponentsppadsppad_S100_100_LMTOP_BLNon_457de54c 
  + // No parameters

  4
  + // Ports: 
  + ( bl,br bl )
  +  pad_gdsfactorypcomponentsppadsppad_S100_100_LMTOP_BLNon_457de54c 
  + // No parameters

  5
  + // Ports: 
  + ( tl,tr )
  +  taper_gdsfactorypcomponentsptapersptaper_L10_W100_W10_L_e6a63921 
  + // No parameters

  6
  + // Ports: 
  + ( tl,tr )
  +  straight_gdsfactorypcomponentspwaveguidespstraight_L3_N_51c3cb9c 
  + // No parameters

  7
  + // Ports: 
  + ( tl,tr )
  +  wire_corner_gdsfactorypcomponentspwaveguidespwire_CSmet_507ea7e9 
  + // No parameters

  8
  + // Ports: 
  + ( tl,tr )
  +  straight_gdsfactorypcomponentspwaveguidespstraight_L190_c5fd8eec 
  + // No parameters

  9
  + // Ports: 
  + ( tl,tr )
  +  wire_corner_gdsfactorypcomponentspwaveguidespwire_CSmet_507ea7e9 
  + // No parameters

  10
  + // Ports: 
  + ( tl,tr )
  +  taper_gdsfactorypcomponentsptapersptaper_L10_W100_W10_L_e6a63921 
  + // No parameters

  11
  + // Ports: 
  + ( tl,tr )
  +  straight_gdsfactorypcomponentspwaveguidespstraight_L367_12efeeb9 
  + // No parameters

  12
  + // Ports: 
  + ( bl,br )
  +  taper_gdsfactorypcomponentsptapersptaper_L10_W100_W10_L_e6a63921 
  + // No parameters

  13
  + // Ports: 
  + ( bl,br )
  +  straight_gdsfactorypcomponentspwaveguidespstraight_L380_9b8fde9a 
  + // No parameters

  14
  + // Ports: 
  + ( bl,br )
  +  taper_gdsfactorypcomponentsptapersptaper_L10_W100_W10_L_e6a63921 
  + // No parameters


ends

Xyce¶

out = StringIO()
gs.export_netlist(pkg, dest=out, fmt="xyce")
print(out.getvalue())

; `circuit.Package` `gplugins.klayout.example`
; Generated by `vlsirtools.XyceNetlister`
;

.SUBCKT straight_gdsfactorypcomponentspwaveguidespstraight_L367_12efeeb9
+ 1 
; No parameters

.ENDS

.SUBCKT straight_gdsfactorypcomponentspwaveguidespstraight_L190_c5fd8eec
+ 1 
; No parameters

.ENDS

.SUBCKT straight_gdsfactorypcomponentspwaveguidespstraight_L3_N_51c3cb9c
+ 1 
; No parameters

.ENDS

.SUBCKT wire_corner_gdsfactorypcomponentspwaveguidespwire_CSmet_507ea7e9
+ 1 
; No parameters

.ENDS

.SUBCKT straight_gdsfactorypcomponentspwaveguidespstraight_L380_9b8fde9a
+ 1 
; No parameters

.ENDS

.SUBCKT taper_gdsfactorypcomponentsptapersptaper_L10_W100_W10_L_e6a63921
+ 1 
; No parameters

.ENDS

.SUBCKT pad_gdsfactorypcomponentsppadsppad_S100_100_LMTOP_BLNon_457de54c
+ 1 2 
; No parameters

.ENDS

.SUBCKT pads_correct_Ppad_CSmetal3
; No ports
; No parameters

x1
+ tl,tr tl 
+ pad_gdsfactorypcomponentsppadsppad_S100_100_LMTOP_BLNon_457de54c
+ ; No parameters

x2
+ tl,tr tr 
+ pad_gdsfactorypcomponentsppadsppad_S100_100_LMTOP_BLNon_457de54c
+ ; No parameters

x3
+ bl,br br 
+ pad_gdsfactorypcomponentsppadsppad_S100_100_LMTOP_BLNon_457de54c
+ ; No parameters

x4
+ bl,br bl 
+ pad_gdsfactorypcomponentsppadsppad_S100_100_LMTOP_BLNon_457de54c
+ ; No parameters

x5
+ tl,tr 
+ taper_gdsfactorypcomponentsptapersptaper_L10_W100_W10_L_e6a63921
+ ; No parameters

x6
+ tl,tr 
+ straight_gdsfactorypcomponentspwaveguidespstraight_L3_N_51c3cb9c
+ ; No parameters

x7
+ tl,tr 
+ wire_corner_gdsfactorypcomponentspwaveguidespwire_CSmet_507ea7e9
+ ; No parameters

x8
+ tl,tr 
+ straight_gdsfactorypcomponentspwaveguidespstraight_L190_c5fd8eec
+ ; No parameters

x9
+ tl,tr 
+ wire_corner_gdsfactorypcomponentspwaveguidespwire_CSmet_507ea7e9
+ ; No parameters

x10
+ tl,tr 
+ taper_gdsfactorypcomponentsptapersptaper_L10_W100_W10_L_e6a63921
+ ; No parameters

x11
+ tl,tr 
+ straight_gdsfactorypcomponentspwaveguidespstraight_L367_12efeeb9
+ ; No parameters

x12
+ bl,br 
+ taper_gdsfactorypcomponentsptapersptaper_L10_W100_W10_L_e6a63921
+ ; No parameters

x13
+ bl,br 
+ straight_gdsfactorypcomponentspwaveguidespstraight_L380_9b8fde9a
+ ; No parameters

x14
+ bl,br 
+ taper_gdsfactorypcomponentsptapersptaper_L10_W100_W10_L_e6a63921
+ ; No parameters

.ENDS

ngspice¶

out = StringIO()
gs.export_netlist(pkg, dest=out, fmt="spice")
print(out.getvalue())

* `circuit.Package` `gplugins.klayout.example`
* Generated by `vlsirtools.SpiceNetlister`
*

.SUBCKT straight_gdsfactorypcomponentspwaveguidespstraight_L367_12efeeb9
+ 1 
* No parameters

.ENDS

.SUBCKT straight_gdsfactorypcomponentspwaveguidespstraight_L190_c5fd8eec
+ 1 
* No parameters

.ENDS

.SUBCKT straight_gdsfactorypcomponentspwaveguidespstraight_L3_N_51c3cb9c
+ 1 
* No parameters

.ENDS

.SUBCKT wire_corner_gdsfactorypcomponentspwaveguidespwire_CSmet_507ea7e9
+ 1 
* No parameters

.ENDS

.SUBCKT straight_gdsfactorypcomponentspwaveguidespstraight_L380_9b8fde9a
+ 1 
* No parameters

.ENDS

.SUBCKT taper_gdsfactorypcomponentsptapersptaper_L10_W100_W10_L_e6a63921
+ 1 
* No parameters

.ENDS

.SUBCKT pad_gdsfactorypcomponentsppadsppad_S100_100_LMTOP_BLNon_457de54c
+ 1 2 
* No parameters

.ENDS

.SUBCKT pads_correct_Ppad_CSmetal3
* No ports
* No parameters

x1
+ tl,tr tl 
+ pad_gdsfactorypcomponentsppadsppad_S100_100_LMTOP_BLNon_457de54c
* No parameters


x2
+ tl,tr tr 
+ pad_gdsfactorypcomponentsppadsppad_S100_100_LMTOP_BLNon_457de54c
* No parameters


x3
+ bl,br br 
+ pad_gdsfactorypcomponentsppadsppad_S100_100_LMTOP_BLNon_457de54c
* No parameters


x4
+ bl,br bl 
+ pad_gdsfactorypcomponentsppadsppad_S100_100_LMTOP_BLNon_457de54c
* No parameters


x5
+ tl,tr 
+ taper_gdsfactorypcomponentsptapersptaper_L10_W100_W10_L_e6a63921
* No parameters


x6
+ tl,tr 
+ straight_gdsfactorypcomponentspwaveguidespstraight_L3_N_51c3cb9c
* No parameters


x7
+ tl,tr 
+ wire_corner_gdsfactorypcomponentspwaveguidespwire_CSmet_507ea7e9
* No parameters


x8
+ tl,tr 
+ straight_gdsfactorypcomponentspwaveguidespstraight_L190_c5fd8eec
* No parameters


x9
+ tl,tr 
+ wire_corner_gdsfactorypcomponentspwaveguidespwire_CSmet_507ea7e9
* No parameters


x10
+ tl,tr 
+ taper_gdsfactorypcomponentsptapersptaper_L10_W100_W10_L_e6a63921
* No parameters


x11
+ tl,tr 
+ straight_gdsfactorypcomponentspwaveguidespstraight_L367_12efeeb9
* No parameters


x12
+ bl,br 
+ taper_gdsfactorypcomponentsptapersptaper_L10_W100_W10_L_e6a63921
* No parameters


x13
+ bl,br 
+ straight_gdsfactorypcomponentspwaveguidespstraight_L380_9b8fde9a
* No parameters


x14
+ bl,br 
+ taper_gdsfactorypcomponentsptapersptaper_L10_W100_W10_L_e6a63921
* No parameters


.ENDS