4 HSPICE/SPICE Elements

This chapter contains the following topics:

HSPICE/SPICE Elements and Corresponding Library Cells
This section lists the HSPICE/SPICE elements and the corresponding cells in the sample library.
HSPICE/SPICE Model and Element Parameters
This section has information about the library cells, terminal names, element and model parameters, for each HSPICE/SPICE element.
Formatting Functions
This section has information about the formatting functions for each HSPICE/SPICE element.

HSPICE/SPICE Elements and Corresponding Library Cells

HSPICE/SPICE Element (Model Type)	Library Cell
R	res
R	resistor
C	cap
C	capacitor
C	pcapacitor
L	inductor
T	tline
G	soi.vc
G	vcisrc
E	sov.vc
E	vcvsrc
F	soi.ic
H	sov.ic
V	sov
V	vsrc
I	soi
I	isrc
D	diode
D	pdiode
Q(npn)	npn
Q(npn)	npns
Q(pnp)	pnp
Q(pnp)	pnps
J(njf)	njfet
J(pjf)	pjfet
M(nmos)	ndepl
M(nmos)	nfet
M(nmos)	nmos
M(nmos)	nmosd
M(nmos)	nmose
M(nmos)	nsftn
M(nmos)	nxfr
M(pmos)	pdepl
M(pmos)	pfet
M(pmos)	pmos
M(pmos)	pmosd
M(pmos)	pmose
M(pmos)	psftn
M(pmos)	pxfr

HSPICE/SPICE Model and Element Parameters

Resistor

HSPICE/SPICE Element: Resistor Element Name: R Used by Library Cells: res, resistor

Terminal Name	Level of Simulation	Direction
A	Circuit	inputOutput
Y	Circuit	inputOutput

Element Parameter	Data Type	Units
r	float	ohms
tc	string	--

Capacitor

HSPICE/SPICE Element: Capacitor Element Named: C Used by Library Cells: cap, capacitor, pcapacitor

Terminal Name	Level of Simulation	Direction
Y	Circuit	inputOutput
gnd!	Circuit	inputOutput

Element Parameter	DataType	Units
c	float	farads
ic	string	--

Inductor

HSPICE/SPICE Element: Inductor Element Name: L Used by Library Cell: inductor

Terminal Name	Level of Simulation	Direction
PLUS	Circuit	inputOutput
MINUS	Circuit	inputOutput

Element Parameter	Data Type	Units
l	float	henrys
ic	string	--

Transmission Line

HSPICE/SPICE Element: Transmission Line Element Name: T Used by Library Cell: tline

Terminal Name	Level of Simulation	Direction
N1	Circuit	inputOutput
N2	Circuit	inputOutput
N3	Circuit	inputOutput
N4	Circuit	inputOutput

Element Parameter	Data Type	Units
z0	float	ohms
td	float	seconds
f	float	hertz
nl	float	unitless
ic	string	--

Diode

HSPICE/SPICE Element: Diode Element Name: D Model Type: D Used by Library Cell: diode

Terminal Name	Level of Simulation	Direction
PLUS	Circuit	inputOutput
MINUS	Circuit	inputOutput

Element Parameter	Data Type	Units
area	float	unitless
off	string	“off”
ic	string	--

Model Parameter	Data Type	Units
is	float	amperes
rs	float	ohms
n	float	unitless
tt	float	seconds
cjo	float	farads
vj	float	volts
m	float	unitless
eg	float	electronvolts
xti	float	unitless
kf	float	unitless
af	float	unitless
fc	float	unitless
ibv	float	amperes
bv	float	volts

BJT

HSPICE/SPICE Element: BJT Element Name: Q Model Type: NPN, PNP Used by Library Cells: npn, npns, pnp, pnps

Terminal Name	Level of Simulation	Direction
C	Circuit	inputOutput
B	Circuit	inputOutput
E	Circuit	inputOutput
SUB	Circuit	inputOutput

Element Parameter	Data Type	Units
area	float	unitless
off	string	“off”
ic	string	--

Model Parameter	Data Type	Units
is	float	amperes
bf	float	unitless
nf	float	unitless
ise	float	amperes
ne	float	unitless
br	float	unitless
nr	float	unitless
isc	float	amperes
nc	float	unitless
rb	float	ohms
rbm	float	ohms
re	float	ohms
rc	float	ohms
cje	float	farads
vje	float	volts
mje	float	unitless
tf	float	seconds
xtf	float	unitless
itf	float	amperes
ptf	float	degrees
cjc	float	farads
vjc	float	volts
mjc	float	unitless
xcjc	float	unitless
tr	float	seconds
cjs	float	farads
vjs	float	volts
mjs	float	unitless
xtb	float	unitless
eg	float	electronvolts
xti	float	unitless
kf	float	unitless
af	float	unitless
fc	float	unitless
vtf	float	volts
irb	float	amperes
ikr	float	amperes
var	float	volts
vaf	float	volts
ikf	float	amperes

JFET

HSPICE/SPICE Element: JFET Element Name: J Model Type: NJF, PJF Used by Libary Cells: njfet, pjfet

Terminal Name	Level of Simulation	Direction
D	Circuit	inputOutput
G	Circuit	inputOutput
S	Circuit	inputOutput

Element Parameter	Data Type	Units
area	float	unitless
off	string	“off”
ic	string	--

Model Parameter	Data Type	Units
vto	float	volts
beta	float	amperes/square volts
lambda	float	1/volts
rd	float	ohms
rs	float	ohms
cgs	float	farads
cgd	float	farads
pb	float	volts
is	float	amperes
kf	float	unitless
af	float	unitless
fc	float	unitless

MOSFET

HSPICE/SPICE Element: MOSFET Element Name: M Model Type: NMOS, PMOS Used by Library Cells: ndepl, nfet, nmos, mosd, nmose, nsftn, nxfr, pdepl, pfet, pmos, pmos, pmose, psftn, pxfr

Terminal Name	Level of Simulation	Direction
D	Circuit	inputOutput
G	Circuit	inputOutput
S	Circuit	inputOutput
B	Circuit	inputOutput

Element Parameter	Data Type	Units
l	float	meters
w	float	meters
ad	float	square meters
as	float	square meters
pd	float	meters
ps	float	meters
nrd	float	unitless
nrs	float	unitless
off	string	“off”
ic	string	--

Model Parameter	Data Type	Units
level	integer	unitless
vto	float	volts
kp	float	amperes/volts squared
gamma	float	volts**0.5
phi	float	volts
lambda	float	1/volts
rd	float	ohms
rs	float	ohms
cbd	float	farads
cbs	float	farads
is	float	amperes
pb	float	volts
cgso	float	farads/meter
cgdo	float	farads/meter
cgbo	float	farads/meter
rsh	float	ohms/square
cj	float	farads/square meter
mj	float	unitless
cjsw	float	farads/meter
mjsw	float	unitless
js	float	amperes/square meter
tox	float	meters
nsub	float	1/cubic centimeters
nss	float	1/square centimeters
nfs	float	1/square centimeters
tpg	integer	unitless
xj	float	meters
ld	float	meters
uo	float	square centimeters/volt seconds
ucrit	float	volts/centimeter
uexp	float	unitless
utra	float	unitless
vmax	float	meters/second
neff	float	unitless
xqc	float	unitless
kf	float	unitless
af	float	unitless
fc	float	unitless
delta	float	unitless
theta	float	1/volts
eta	float	unitless
kappa	float	unitless

Formatting Functions

This section describes the formatting functions included with the HSPICE/SPICE interface. The cells in the sample library that use these formatting functions are also listed. The syntax for these formatting functions is that of the nlpglobal functions, but the same parameters are also defined in the hspice formatter for hierarchical netlisting.

This section uses the following notations:

`<...>`	name in the brackets is an identifier
`{...}`	item(s) in braces can be repeated as many times as necessary
`[...]`	item(s) in brackets are optional
`@name`	value of property name is substituted

Element Formats

Below is the list of HSPICE/SPICE elements and their formats:

res

r<name> <A> <Y> @r @ns @tc1 @tc2 @scale @rsh ac=@ac m=@m

The res cell in the sample library uses this format.

resistor

r<name> <PLUS> <MINUS> @r @ns @tc1 @tc2 @scale @rsh ac=@ac m=@m

The resistor cell in the sample library uses this format.

cap

c<name> <Y> gnd! @c @ns @tc1 @tc2 @scale @cj ic=@ic m=@m

The cap cell in the sample library uses this format.

capacitor

c<name> <PLUS> <MINUS> @c @ns @tc1 @tc2 @scale @cj ic=@ic m=@m

The capacitor and pcapacitor cells in the sample library use this format.

inductor

l<name> <PLUS> <MINUS> @l  @tc1 @tc2 @nt ic=@ic

The inductor cell in the sample library uses this format.

transmission line

t<name> <N1> <N2> <N3> <N4> z0=@z0 td=@td f=@f nl=@nl ic=@ic

The tline cell in the sample library uses this format.

diode

d<name> <PLUS> <MINUS> <cellName> w=@w l=@l area=@area pj=@pj wp=@wp lp=@lp wm=@wm lm=@lm @off ic=@ic m=@m

The diode and pdiode cells in the sample library use this format.

BJT

q<name>  <C> <B> <E> <SUB> <cellName> area=@area @off ic=@ic m=@m

The npns and pnps cells in the sample library use this format.

JFET

j<name> <D> <G> <S> <cellName> area=@area w=@w l=@l @off ic=@ic m=@m

The njfet and pjfet cells in the sample library use this format.

MOSfet

m<name> <D> <G> <S> <B> <cellName> w=@w l=@l ad=@ad as=@as pd=@pd ps=@ps nrd=@nrd nrs=@nrs off" off ic=@ic m=@m

The ndepl, nfet, nsftn, pdepl, pfet, and psftn cells in the sample library use this format.

NMOSfet

m<name>  <D> <G> <S> gnd! <cellName> w=@w l=@l ad=@ad as=@as pd=@pd ps=@ps nrd=@nrd nrs=@nrs off" off ic=@ic m=@m

The nxfr, nmos, nmosd, and nmose cells in the sample library use this format.

NPN

q<name>  <C> <B> <E> vee! <cellName> area=@area off" off ic=@ic m=@m

The npn cell in the sample library uses this format.

PMOSfet

"m<name> <D> <G> <S> vdd! <cellName> w=@w l=@l ad=@ad as=@as pd=@pd ps=@ps nrd=@nrd nrs=@nrs off" off ic=@ic m=@m

The pxfr, pmos, pmosd, and pmose cells in the sample library use this format.

PNP

"q<name>  <C> <B> <E> vcc! <cellName> @area off" off ic=@ic m=@m

The pnp cell in the sample library uses this format.

Model Format

Below is the list of HSPICE/SPICE models and their model card format.

Diode

.model <cellName> d level=@level area=@area eg=@eg is=@is jsw=@jsw n=@n pj=@pj tlev=@tlev xti=@xti ibv=@ibv tcv=@tcv vb=@vb af=@af kf=@kf rs=@rs trs=@trs cjo=@cjo cjp=@cjp cta=@cta ctp=@ctp fc=@fc fcs=@fcs m=@m mjsw=@mjsw pb=@pb php=@php tt=@tt ef=@ef er=@er jf=@jf jr=@jr w=@w l=@l tox=@tox wm=@wm lm=@lm wp=@wp lp=@lp xm=@xm xp=@xp xoi=@xoi xom=@xom

The diode and pdiode cells in the sample library use this format.

BJT

.model <cellName> @modelType bf=@bf br=@br bulk=@bulk eg=@eg is=@is iss=@iss nf=@nf nr=@nr subs=@subs isc=@isc ise=@ise nc=@nc ne=@ne vaf=@vaf var=@var ikf=@ikf ikr=@ikr irb=@irb rb=@rb rbm=@rbm re=@re rc=@rc cjc=@cjc cje=@cje cjs=@cjs fc=@fc mjc=@mjc mje=@mje mjs=@mjs vjc=@vjc vje=@vje vjs=@vjs xcjc=@xcjc itf=@itf ptf=@ptf tf=@tf tr=@tr vtf=@vtf xtf=@xtf tlev=@tlev tre1=@tre1 tre2=@tre2 trb1=@trb1 trb2=@trb2 trc1=@trc1 trc2=@trc2 trm1=@trm1 trm2=@trm2 xtb=@xtb xti=@xti af=@af kf=@kf

The npn, npns, pnp, and pnps cells in the sample library use this format.

JFET

.model <cellName> @modelType level=%s" level a=@a alpha=@alpha beta=@beta d=@d gamds=@gamds lambda=@lambda w=@w l=@l wdel=@wdel ldel=@ldel tcv=@tcv vto=@vto eg=@eg gap1=@gap1 gap2=@gap2 is=@is n=@n ni=@ni xti=@xti af=@af kf=@kf rd=@rd rg=@rg rs=@rs trd=@trd trg=@trg trs=@trs cgd=@cgd cgs=@cgs fc=@fc m=@m pb=@pb capop=@capop ctd=@ctd cts=@cts tt=@tt bex=@bex lam1=@lam1 nchan=@nchan sat=@sat ucrit=@ucrit vbi=@vbi vgexp=@vgexp vp=@vp tlev=@tlev tlevc=@tlevc tpb=@tpb

The njfet and pjfet cells in the sample library use this format.

MOSfet

.model<cellName> @modelType level=@level vto=@vto nss=@nss tpg=@tpg phi=@phi gamma=@gamma nsub=@nsub bulk=@bulk bex=@bex kp=@kp lambda=@lambda ecrit=@ecrit neff=@neff nfs=@nfs ucrit=@ucrit uexp=@uexp uo=@uo utra=@utra vmax=@vmax xj=@xj ld=@ld theta=@theta clm=@clm dns=@dns fds=@fds mbl=@mbl mob=@mob nu=@nu nwe=@nwe nwm=@nwm scm=@scm tcv=@tcv ufds=@ufds vbo=@vbo vfds=@vfds vsh=@vsh wic=@wic f1=@f1 mob=@mob af=@af kf=@kf cgbo=@cgbo cgdo=@cgdo cgso=@cgso cox=@cox meto=@meto tox=@tox wd=@wd capop=@capop cf1=@cf1 cf2=@cf2 cf3=@cf3 cf4=@cf4 cf5=@cf5 cf6=@cf6 alpha=@alpha is=@is js=@js jsw=@jsw vcr=@vcr cbd=@cbd cbs=@cbs cj=@cj cjsw=@cjsw mj=@mj mjsw=@mjsw pb=@pb php=@php ldif=@ldif rd=@rd rs=@rs rsh=@rsh trd=@trd trs=@trs delta=@delta kappa=@kappa eta=@eta

The ndepl, nfet, nmos, nmosd, nmose, nsftn, nxfr, pdepl, pfet, pmos, pmosd, pmose, psftn, and pxfr cells in the sample library use this format.

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HSPICE/SPICE Interface ReferenceProduct Version IC23.1, June 2023

4

HSPICE/SPICE Elements

HSPICE/SPICE Elements and Corresponding Library Cells

HSPICE/SPICE Model and Element Parameters

Resistor

Capacitor

Inductor

Transmission Line

Diode

BJT

JFET

MOSFET

Formatting Functions

Element Formats

res

resistor

cap

capacitor

inductor

transmission line

diode

BJT

JFET

MOSfet

NMOSfet

NPN

PMOSfet

PNP

Model Format

Diode

BJT

JFET

MOSfet

HSPICE/SPICE Interface Reference
Product Version IC23.1, June 2023