Product Documentation
Spectre Circuit Simulator Components and Device Models Reference
Product Version 23.1, June 2023

Component Statements

Model Definition

model modelName mvsg_gan parameter=value ...

Instance Definition

Name  d  g  s  b ModelName parameter=value ...

Instance Parameters

1

m=1

Multiplicity factor, number of devices in parallel.

2

w=180.0e-6 m

Width per Finger.

3

l=250.0e-9 m

Effective gate length.

4

ngf=2

Number of Fingers.

5

trise=0 C

Variability in device temperature.

6

dtemp=0.0 C

Device temperature offset from ambient.

7

isnoisy=1

Should device generate noise.

Model Parameters

1

version=1.00

Version number.

2

tnom=27.0 deg C

Reference temperature for the model.

3

type=1

nFET=1 pFET=-1.

4

cg=4.00e-03 F/m2

Gate cap/area.

5

cofsm=1.0e-9 F/m

Gate - Source outer fringing cap/width.

6

cofdm=1.0e-10 F/m

Gate - Drain outer fringing cap/width.

7

cofdsm=1.0e-10 F/m

Source - Drain outer fringing cap/width.

8

cofdsubm=0.0 F/m

Sub - Drain outer fringing cap/width.

9

cofssubm=0.0 F/m

Sub - Source outer fringing cap/width.

10

cofgsubm=0.0 F/m

Sub - Gate outer fringing cap/width.

11

rsh=150.0 Ohms/Sq

2-DEG Sheet Resistance.

12

rcs=800e-6 Ohms m

Source contact resistance * Width.

13

rcd=800e-6 Ohms m

Drain contact resistance * Width.

14

vx0=3.0e5 m/s

Source injection velocity.

15

mu0=0.135 m2/Vs

Low-field mobility.

16

beta=1.50

Linear to saturation parameter.

17

vto=(-2.72) V

Threshold voltage.

18

ss=0.120 V/dec

Sub-threshold slope.

19

delta1=16e-3

DIBL Coefficient 1.

20

delta2=0.0

DIBL Coefficient 2.

21

dibsat=10.0 V

DIBL saturation Voltage.

22

nd=0.0

Punchthrough factor for subth slope.

23

alpha=3.5

Weak to strong inversion transition factor.

24

lambda=0.0 1/V

CLM parameter.

25

vtheta=0.0 1/V

Scattering: velocity reduction parameter with Vg.

26

mtheta=0.0 1/V

Scattering: mobility reduction parameter with Vg.

27

vzeta=150e3 1/K

vx0 dependence on temperature.

28

vtzeta=(-0.4e-3) V/K

vto dependence on temperature.

29

epsilon=2.3

Mobility dependence on temperature.

30

rct1=0.0 1/K

Linear Rsh and Rc temperature coefficient.

31

rct2=0.0 1/K2

Quadratic Rsh and Rc temperature coefficient.

32

flagres=0

Flag parameter for resistor: resistor is chosen if flagres=1 or implicit transitor is chosen if flagres=0.

33

lgs=3.0e-6 m

Source access region (SAR) length parameter.

34

vtors=(-650) V

SAR threshold voltage.

35

cgrs=5.0e-3 F/m2

SAR gate-cap/area.

36

vx0rs=100e3 m/s

SAR source injection velocity.

37

mu0rs=100e-3 m2/Vs

SAR low-field mobility.

38

betars=1.00

SAR linear to saturation parameter.

39

delta1rs=100e-3

SAR DIBL Coefficient.

40

srs=0.100 V/dec

SAR Sub-threshold slope.

41

ndrs=0.0

SAR punchthrough factor for subth slope.

42

vthetars=0.0 1/V

SAR scattering: velocity reduction parameter with Vg.

43

mthetars=0.0 1/V

SAR scattering: mobility reduction parameter with Vg.

44

alphars=3.5

SAR weak to strong inversion transition factor.

45

lgd=4.85e-6 m

Drain access region (DAR) length parameter.

46

vtord=(-650) V

DAR threshold voltage.

47

cgrd=4.3e-3 F/m2

DAR gate-cap/area.

48

vx0rd=100e3 m/s

DAR source injection velocity.

49

mu0rd=100e-3 m2/Vs

DAR low-field mobility.

50

betard=1.00

DAR linear to saturation parameter.

51

delta1rd=0.35

DAR DIBL Coefficient.

52

srd=0.3 V/dec

DAR Sub-threshold slope.

53

ndrd=3.8

DAR punchthrough factor for subth slope.

54

vthetard=0.0 1/V

DAR scattering: velocity reduction parameter with Vg.

55

mthetard=0.0 1/V

DAR scattering: mobility reduction parameter with Vg.

56

alphard=3.5

DAR weak to strong inversion transition factor.

57

flagfp1=1

Flag parameter: GFP=1 or SFP=0.

58

lgfp1=0.0 m

FP Length.

59

vtofp1=(-44.5) V

FP threshold voltage.

60

cgfp1=2.0e-4 F/m2

FP gate-cap/area.

61

flagfp1s=1

Flag parameter: cfp1s select=1 or cfp1s not select=0.

62

cfp1s=1e-19 F/m

FP (source-side) to source cap/width.

63

ccfp1=0.9e-10 F/m

Source or gate to drain (under FP) cap/width.

64

cbfp1=0.0 F/m

Body to drain (under FP) cap/width.

65

vx0fp1=1.2e5 m/s

FP source injection velocity.

66

mu0fp1=0.2 m2/Vs

FP low-field mobility.

67

betafp1=1.00

FP linear to saturation parameter.

68

delta1fp1=0.0

FP DIBL Coefficient.

69

sfp1=3.2 V/dec

FP Sub-threshold slope.

70

ndfp1=0.0

FP punchthrough factor for subth slope.

71

vthetafp1=0.0 1/V

FP scattering: velocity reduction parameter with Vg.

72

mthetafp1=0.0 1/V

FP scattering: mobility reduction parameter with Vg.

73

alphafp1=1e-2

FP weak to strong inversion transition factor.

74

flagfp2=0

Flag parameter: GFP=1 or SFP=0.

75

lgfp2=0.0 m

FP Length.

76

vtofp2=(-74.5) V

FP threshold voltage.

77

cgfp2=1.0e-4 F/m2

FP gate-cap/area.

78

flagfp2s=1

Flag parameter: cfp1s select=1 or cfp1s not select=0.

79

cfp2s=1e-19 F/m

FP (source-side) to source cap/width.

80

ccfp2=0.3e-10 F/m

Source or gate to drain (under FP) cap/width.

81

cbfp2=0.0 F/m

Body to drain (under FP) cap/width.

82

vx0fp2=1.2e5 m/s

FP source injection velocity.

83

mu0fp2=0.2 m2/Vs

FP low-field mobility.

84

betafp2=1.00

FP linear to saturation parameter.

85

delta1fp2=0.0

FP DIBL Coefficient.

86

sfp2=3.2 V/dec

FP Sub-threshold slope.

87

ndfp2=0.0

FP punchthrough factor for subth slope.

88

vthetafp2=0.0 1/V

FP scattering: velocity reduction parameter with Vg.

89

mthetafp2=0.0 1/V

FP scattering: mobility reduction parameter with Vg.

90

alphafp2=1e-2

FP weak to strong inversion transition factor.

91

flagfp3=0

Flag parameter: GFP=1 or SFP=0.

92

lgfp3=0.0 m

FP Length.

93

vtofp3=(-44.5) V

FP threshold voltage.

94

cgfp3=2.0e-4 F/m2

FP gate-cap/area.

95

flagfp3s=1

Flag parameter: cfp1s select=1 or cfp1s not select=0.

96

cfp3s=1e-19 F/m

FP (source-side) to source cap/width.

97

ccfp3=0.9e-10 F/m

Source or gate to drain (under FP) cap/width.

98

cbfp3=0.0 F/m

Body to drain (under FP) cap/width.

99

vx0fp3=1.2e5 m/s

FP source injection velocity.

100

mu0fp3=0.2 m2/Vs

FP low-field mobility.

101

betafp3=1.00

FP linear to saturation parameter.

102

delta1fp3=0.0

FP DIBL Coefficient.

103

sfp3=3.2 V/dec

FP Sub-threshold slope.

104

ndfp3=0.0

FP punchthrough factor for subth slope.

105

vthetafp3=0.0 1/V

FP scattering: velocity reduction parameter with Vg.

106

mthetafp3=0.0 1/V

FP scattering: mobility reduction parameter with Vg.

107

alphafp3=1e-2

FP weak to strong inversion transition factor.

108

flagfp4=0

Flag parameter: GFP=1 or SFP=0.

109

lgfp4=0.0 m

FP Length.

110

vtofp4=(-44.5) V

FP threshold voltage.

111

cgfp4=2.0e-4 F/m2

FP gate-cap/area.

112

flagfp4s=1

Flag parameter: cfp1s select=1 or cfp1s not select=0.

113

cfp4s=1e-19 F/m

FP (source-side) to source cap/width.

114

ccfp4=0.9e-10 F/m

Source or gate to drain (under FP) cap/width.

115

cbfp4=0.0 F/m

Body to drain (under FP) cap/width.

116

vx0fp4=1.2e5 m/s

FP source injection velocity.

117

mu0fp4=0.2 m2/Vs

FP low-field mobility.

118

betafp4=1.00

FP linear to saturation parameter.

119

delta1fp4=0.0

FP DIBL Coefficient.

120

sfp4=3.2 V/dec

FP Sub-threshold slope.

121

ndfp4=0.0

FP punchthrough factor for subth slope.

122

vthetafp4=0.0 1/V

FP scattering: velocity reduction parameter with Vg.

123

mthetafp4=0.0 1/V

FP scattering: mobility reduction parameter with Vg.

124

alphafp4=1e-2

FP weak to strong inversion transition factor.

125

igmod=1

Flag parameter for gate leakage 0=off, 1=on.

126

rgsp=0.0 Ohms m

Gate resistance * Width.

127

vjg=1.1 V

Gate diode cut in voltage.

128

pg_param1=820e-3 1/V

Something like 1/eta.

129

pg_params=1.00 1/V

G-S something like 1/eta*Vt.

130

ijs=1.00e-12 A/m

G-S reverse leakage current normalized to width.

131

vgsats=1.00 V

G-S high injection effect.

132

fracs=0.5

G-S fractional change in ideality factor due to high injection.

133

alphags=10.0

G-S high injection smoothing parameter.

134

pg_paramd=1.00 1/V

G-D something like 1/eta*Vt.

135

ijd=1.00e-12 A/m

G-D reverse leakage current normalized to width.

136

vgsatd=1.00 V

G-D high injection effect.

137

fracd=0.5

G-D fractional change in ideality factor due to high injection.

138

alphagd=10.0

G-D high injection smoothing parameter.

139

pgsrecs=0.5

G-S something like 1/eta for reverse recombination.

140

irecs=1.0e-18 A/m

G-S reverse leakage current normalized to width.

141

vgsatqs=2.00 V

G-S mimics depletion saturation.

142

vbdgs=600 V

G-S soft breakdown voltage of G-S diode.

143

pbdgs=4.00 1/V

G-S fitting parameter for breakdown: Something like 1/eta*Vt.

144

betarecs=2.00

G-S linear to saturation parameter.

145

kbdgates=00

G-S fitting parameter to turn on the breakdown of G-S diode.

146

pgsrecd=0.8

G-D something like 1/eta for reverse recombination.

147

irecd=2e-5 A/m

G-D reverse leakage current normalized to width.

148

vgsatqd=0.8 V

G-D mimics depletion saturation.

149

vbdgd=600 V

G-D soft breakdown voltage of G-D diode.

150

pbdgd=4.00 1/V

G-D fitting parameter for breakdown: Something like 1/eta*Vt.

151

betarecd=0.25

G-D linear to saturation parameter.

152

kbdgated=00

G-D fitting parameter to turn on the breakdown of G-D diode.

153

rth=25 K/W

Thermal resistance.

154

cth=1e-4 s W/K

Thermal capacitance.

155

gmdisp=0

Flag parameter for gm-dispersion 0=off, 1=on.

156

taugmrf=1e-3 s

gm-dispersion time constant.

157

trapselect=0

Select knob for charge trapping 0=off, 1=on.

158

ctrap=1e-3 F

DC-block capacitor.

159

vttrap=230 V

Trapping stress threshold voltage.

160

taut=3e-5 s

Trap time constant.

161

alphat1=1e-4

Trap coefficient 1 on bias stress.

162

alphat2=21 V

Trap coefficient 2 on bias stress.

163

tempt=1e-4 1/K

Temperature coefficient for trapping.

164

noisemod=0

Select knob for noise model 0=off, 1=on.

165

shs=3.0

G-S shot noise parameter.

166

shd=3.0

G-D shot noise parameter.

167

kf=1.0e-4

Flicker noise coefficient.

168

af=2.0

Flicker noise exponent.

169

ffe=1.2

Flicker noise exponent for frequency.

170

minr=1.0e-3

Minimum resistance.

171

minl=1.0e-9 m

Minimum length of access or FP regions for modeling them as transistors.

172

minc=0.0 F

Minimum capacitance.

173

trise=0.0 C

Temperature rise from ambient, alias of dtemp. It served as the default value of instance DTEMP.

Operating-Point Parameter

1

trise=0 C

Variability in device temperature.

2

dtemp=0.0 C

Device temperature offset from ambient.

3

vgisi (V)

Internal gate-source voltage.

4

vdisi (V)

Internal drain-source voltage.

5

pdc (W)

Total power dissipation from the device.

6

idisi (A)

Drain-to-source current in intrinsic transistor.

7

igs (A)

Gate-source gate-leakage current.

8

igd (A)

Gate-drain gate-leakage current.

9

qgi (C)

Intrinsic gate charge.

10

qdi (C)

Intrinsic drain charge.

11

qsi (C)

Intrinsic source charge.

12

qbi (C)

Intrinsic body charge.

13

gmi (A/V)

Intrinsic transconductance.

14

gdsi (A/V)

Intrinsic output-conductance.

15

gmbsi (A/V)

Intrinsic body-transconductance.

16

cggi (F)

Intrinsic gate-gate capacitance.

17

cgdi (F)

Intrinsic gate-drain capacitance.

18

cgsi (F)

Intrinsic gate-source capacitance.

19

cgbi (F)

Intrinsic gate-body capacitance.

20

cdgi (F)

Intrinsic drain-gate capacitance.

21

cddi (F)

Intrinsic drain-drain capacitance.

22

cdsi (F)

Intrinsic drain-source capacitance.

23

cdbi (F)

Intrinsic drain-body capacitance.

24

csgi (F)

Intrinsic source-gate capacitance.

25

csdi (F)

Intrinsic source-drain capacitance.

26

cssi (F)

Intrinsic source-source capacitance.

27

csbi (F)

Intrinsic source-body capacitance.

28

cbgi (F)

Intrinsic body-gate capacitance.

29

cbdi (F)

Intrinsic body-drain capacitance.

30

cbsi (F)

Intrinsic body-source capacitance.

31

cbbi (F)

Intrinsic body-body capacitance.

32

cgs (F)

Gate-to-source fringing capacitance.

33

cgd (F)

Gate-to-drain fringing capacitance.

34

t_total_k (K)

Actual device temperature in Kelvin.

35

t_total_c (deg C)

Actual device temperature in Celsius.

36

t_delta_sh (K)

Change in device temperature caused by self-heating.

37

rs ()

Resistance of source access region.

38

rd ()

Resistance of drain access region.

39

per (W)

Power at op point.

Parameter Index

In the following index, I refers to instance parameters, M refers to the model parameters section, O refers to the output parameters section, and OP refers to the operating point parameters section. The number indicates where to look in the appropriate section to find the description for that parameter. For example, a reference of M-35 means the 35th model parameter.

af      M-168
cofdsm      M-7
lgfp2      M-75
sfp3      M-103
alpha      M-23
cofdsubm      M-8
lgfp3      M-92
sfp4      M-120
alphafp1      M-73
cofgsubm      M-10
lgfp4      M-109
shd      M-166
alphafp2      M-90
cofsm      M-5
lgs      M-33
shs      M-165
alphafp3      M-107
cofssubm      M-9
m      I-1
srd      M-52
alphafp4      M-124
csbi      OP-27
minc      M-172
srs      M-40
alphagd      M-138
csdi      OP-25
minl      M-171
ss      M-18
alphags      M-133
csgi      OP-24
minr      M-170
t_delta_sh      OP-36
alphard      M-56
cssi      OP-26
mtheta      M-26
t_total_c      OP-35
alphars      M-44
cth      M-154
mthetafp1      M-72
t_total_k      OP-34
alphat1      M-161
ctrap      M-158
mthetafp2      M-89
taugmrf      M-156
alphat2      M-162
delta1      M-19
mthetafp3      M-106
taut      M-160
beta      M-16
delta1fp1      M-68
mthetafp4      M-123
tempt      M-163
betafp1      M-67
delta1fp2      M-85
mthetard      M-55
tnom      M-2
betafp2      M-84
delta1fp3      M-102
mthetars      M-43
trapselect      M-157
betafp3      M-101
delta1fp4      M-119
mu0      M-15
trise      I-5
betafp4      M-118
delta1rd      M-51
mu0fp1      M-66
trise      M-173
betard      M-50
delta1rs      M-39
mu0fp2      M-83
trise      OP-1
betarecd      M-151
delta2      M-20
mu0fp3      M-100
type      M-3
betarecs      M-144
dibsat      M-21
mu0fp4      M-117
vbdgd      M-149
betars      M-38
dtemp      I-6
mu0rd      M-49
vbdgs      M-142
cbbi      OP-31
dtemp      OP-2
mu0rs      M-37
vdisi      OP-4
cbdi      OP-29
epsilon      M-29
nd      M-22
version      M-1
cbfp1      M-64
ffe      M-169
ndfp1      M-70
vgisi      OP-3
cbfp2      M-81
flagfp1      M-57
ndfp2      M-87
vgsatd      M-136
cbfp3      M-98
flagfp1s      M-61
ndfp3      M-104
vgsatqd      M-148
cbfp4      M-115
flagfp2      M-74
ndfp4      M-121
vgsatqs      M-141
cbgi      OP-28
flagfp2s      M-78
ndrd      M-53
vgsats      M-131
cbsi      OP-30
flagfp3      M-91
ndrs      M-41
vjg      M-127
ccfp1      M-63
flagfp3s      M-95
ngf      I-4
vtheta      M-25
ccfp2      M-80
flagfp4      M-108
noisemod      M-164
vthetafp1      M-71
ccfp3      M-97
flagfp4s      M-112
pbdgd      M-150
vthetafp2      M-88
ccfp4      M-114
flagres      M-32
pbdgs      M-143
vthetafp3      M-105
cdbi      OP-23
fracd      M-137
pdc      OP-5
vthetafp4      M-122
cddi      OP-21
fracs      M-132
pg_param1      M-128
vthetard      M-54
cdgi      OP-20
gdsi      OP-14
pg_paramd      M-134
vthetars      M-42
cdsi      OP-22
gmbsi      OP-15
pg_params      M-129
vto      M-17
cfp1s      M-62
gmdisp      M-155
pgsrecd      M-146
vtofp1      M-59
cfp2s      M-79
gmi      OP-13
pgsrecs      M-139
vtofp2      M-76
cfp3s      M-96
idisi      OP-6
pwr      OP-39
vtofp3      M-93
cfp4s      M-113
igd      OP-8
qbi      OP-12
vtofp4      M-110
cg      M-4
igmod      M-125
qdi      OP-10
vtord      M-46
cgbi      OP-19
igs      OP-7
qgi      OP-9
vtors      M-34
cgd      OP-33
ijd      M-135
qsi      OP-11
vttrap      M-159
cgdi      OP-17
ijs      M-130
rcd      M-13
vtzeta      M-28
cgfp1      M-60
irecd      M-147
rcs      M-12
vx0      M-14
cgfp2      M-77
irecs      M-140
rct1      M-30
vx0fp1      M-65
cgfp3      M-94
isnoisy      I-7
rct2      M-31
vx0fp2      M-82
cgfp4      M-111
kbdgated      M-152
rd      OP-38
vx0fp3      M-99
cggi      OP-16
kbdgates      M-145
rgsp      M-126
vx0fp4      M-116
cgrd      M-47
kf      M-167
rs      OP-37
vx0rd      M-48
cgrs      M-35
l      I-3
rsh      M-11
vx0rs      M-36
cgs      OP-32
lambda      M-24
rth      M-153
vzeta      M-27
cgsi      OP-18
lgd      M-45
sfp1      M-69
w      I-2
cofdm      M-6
lgfp1      M-58
sfp2      M-86

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