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bsim4 model update according berkeley release - code change

This commit is contained in:
dwarning 2017-03-31 14:48:14 +02:00
parent ab409ad62e
commit 3f0096fd46
6 changed files with 222 additions and 91 deletions
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36
src/spicelib/devices/bsim4/b4check.c
View File

@ -48,9 +48,9 @@ FILE *fplog;
fprintf(fplog, "\n");
fprintf(fplog, "++++++++++ BSIM4 PARAMETER CHECKING BELOW ++++++++++\n");
if ((strcmp(model->BSIM4version, "4.8.0")) && (strcmp(model->BSIM4version, "4.80")) && (strcmp(model->BSIM4version, "4.8")))
{ fprintf(fplog, "Warning: This model is BSIM4.8.0; you specified a wrong version number.\n");
printf("Warning: This model is BSIM4.8.0; you specified a wrong version number.\n");
if ((strcmp(model->BSIM4version, "4.8.1")) && (strcmp(model->BSIM4version, "4.81")) && (strcmp(model->BSIM4version, "4.8")))
{ fprintf(fplog, "Warning: This model is BSIM4.8.1; you specified a deviating version number.\n");
printf("Warning: This model is BSIM4.8.1; you specified a deviating version number.\n");
}
fprintf(fplog, "Model = %s\n", model->BSIM4modName);
@ -772,7 +772,11 @@ FILE *fplog;
printf("Warning: cgbo = %g is negative. Set to zero.\n", model->BSIM4cgbo);
model->BSIM4cgbo = 0.0;
}
if (model->BSIM4tnoiMod == 1){
printf("Warning: TNOIMOD=1 is not supported and may be removed from future version.\n");
}
if ((strcmp(model->BSIM4version, "4.8.1")) && (strcmp(model->BSIM4version, "4.81"))) {
/* v4.7 */
if (model->BSIM4tnoiMod == 1 || model->BSIM4tnoiMod == 2) {
if (model->BSIM4tnoia < 0.0) {
@ -810,6 +814,32 @@ FILE *fplog;
model->BSIM4rnoic = 0.0;
}
}
}
else
{
if (model->BSIM4tnoiMod == 1){
if (model->BSIM4tnoia < 0.0) {
fprintf(fplog, "Warning: tnoia = %g is negative. Set to zero.\n", model->BSIM4tnoia);
printf("Warning: tnoia = %g is negative. Set to zero.\n", model->BSIM4tnoia);
model->BSIM4tnoia = 0.0;
}
if (model->BSIM4tnoib < 0.0) {
fprintf(fplog, "Warning: tnoib = %g is negative. Set to zero.\n", model->BSIM4tnoib);
printf("Warning: tnoib = %g is negative. Set to zero.\n", model->BSIM4tnoib);
model->BSIM4tnoib = 0.0;
}
if (model->BSIM4rnoia < 0.0) {
fprintf(fplog, "Warning: rnoia = %g is negative. Set to zero.\n", model->BSIM4rnoia);
printf("Warning: rnoia = %g is negative. Set to zero.\n", model->BSIM4rnoia);
model->BSIM4rnoia = 0.0;
}
if (model->BSIM4rnoib < 0.0) {
fprintf(fplog, "Warning: rnoib = %g is negative. Set to zero.\n", model->BSIM4rnoib);
printf("Warning: rnoib = %g is negative. Set to zero.\n", model->BSIM4rnoib);
model->BSIM4rnoib = 0.0;
}
}
}
/* Limits of Njs and Njd modified in BSIM4.7 */
if (model->BSIM4SjctEmissionCoeff < 0.1) {

70
src/spicelib/devices/bsim4/b4noi.c
View File

@ -99,7 +99,7 @@ double tempInoise;
double noizDens[BSIM4NSRCS];
double lnNdens[BSIM4NSRCS];
double T0, T1, T2, T3, T4, T5, T6, T7, T8, T10, T11;
double T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11;
double Vds, Ssi, Swi;
double tmp=0.0, gdpr, gspr, npart_theta=0.0, npart_beta=0.0, igsquare, bodymode;
@ -407,6 +407,7 @@ double m;
T8 = here->BSIM4Vgsteff / here->BSIM4EsatL;
T8 *= T8;
if ((strcmp(model->BSIM4version, "4.8.1")) && (strcmp(model->BSIM4version, "4.81"))) {
npart_c = model->BSIM4rnoic * (1.0 + T8
* model->BSIM4tnoic * Leff);
ctnoi = epsilon / sqrt(gamma * delta)
@ -424,8 +425,42 @@ double m;
T0 = C0 / here->BSIM4noiGd0;
sigrat = T0 * sqrt(delta / gamma);
}
else
{
npart_c = model->BSIM4rnoic * (1.0 + T8
* model->BSIM4tnoic * Leff);
/* Limits added for rnoia, rnoib, rnoic, tnoia, tnoib and tnoic in BSIM4.8.1 */
T9 = gamma * delta ;
if (T9 > 0)
ctnoi = epsilon / sqrt( gamma * delta) * (2.5316 * npart_c);
else
ctnoi = 1.0 ;
if (ctnoi > 1)
ctnoi=1;
if (ctnoi < 0)
ctnoi=0;
npart_beta = model->BSIM4rnoia * (1.0 + T8
* model->BSIM4tnoia * Leff);
npart_theta = model->BSIM4rnoib * (1.0 + T8
* model->BSIM4tnoib * Leff);
gamma = gamma * (3.0 * npart_beta * npart_beta);
delta = delta * (3.75 * npart_theta * npart_theta);
GammaGd0 = gamma * here->BSIM4noiGd0;
C0 = here->BSIM4Coxeff * pParam->BSIM4weffCV * here->BSIM4nf * pParam->BSIM4leffCV;
T0 = C0 / here->BSIM4noiGd0;
if (gamma > 0 && delta > 0)
sigrat = T0 * sqrt(delta / gamma);
else
sigrat = 0.0;
}
}
switch(model->BSIM4tnoiMod)
{ case 0:
if ((strcmp(model->BSIM4version, "4.8.1")) && (strcmp(model->BSIM4version, "4.81"))) {
T0 = here->BSIM4ueff * fabs(here->BSIM4qinv);
T1 = T0 * tmp + pParam->BSIM4leff
* pParam->BSIM4leff;
@ -434,8 +469,24 @@ double m;
THERMNOISE, here->BSIM4dNodePrime,
here->BSIM4sNodePrime,
(T0 / T1) * model->BSIM4ntnoi * m);
}
else
{
T0 = here->BSIM4ueff * fabs(here->BSIM4qinv);
T1 = T0 * tmp + pParam->BSIM4leff
* pParam->BSIM4leff;
NevalSrc(&noizDens[BSIM4IDNOIZ],
&lnNdens[BSIM4IDNOIZ], ckt,
THERMNOISE, here->BSIM4dNodePrime,
here->BSIM4sNodePrime,
(T0 / T1) * model->BSIM4ntnoi * m);
noizDens[BSIM4CORLNOIZ] = 0.0;
lnNdens[BSIM4CORLNOIZ] = log(MAX(noizDens[BSIM4CORLNOIZ], N_MINLOG));
}
break;
case 1:
if ((strcmp(model->BSIM4version, "4.8.1")) && (strcmp(model->BSIM4version, "4.81"))) {
T0 = here->BSIM4gm + here->BSIM4gmbs + here->BSIM4gds;
T0 *= T0;
igsquare = npart_theta * npart_theta * T0 / here->BSIM4IdovVds;
@ -446,6 +497,23 @@ double m;
&lnNdens[BSIM4IDNOIZ], ckt,
THERMNOISE, here->BSIM4dNodePrime,
here->BSIM4sNodePrime, (T2 - igsquare) * m);
}
else
{
T0 = here->BSIM4gm + here->BSIM4gmbs + here->BSIM4gds;
T0 *= T0;
igsquare = npart_theta * npart_theta * T0 / here->BSIM4IdovVds;
T1 = npart_beta * (here->BSIM4gm
+ here->BSIM4gmbs) + here->BSIM4gds;
T2 = T1 * T1 / here->BSIM4IdovVds;
NevalSrc(&noizDens[BSIM4IDNOIZ],
&lnNdens[BSIM4IDNOIZ], ckt,
THERMNOISE, here->BSIM4dNodePrime,
here->BSIM4sNodePrime, (T2 - igsquare) * m);
noizDens[BSIM4CORLNOIZ] = 0.0;
lnNdens[BSIM4CORLNOIZ] = log(MAX(noizDens[BSIM4CORLNOIZ], N_MINLOG));
}
break;
case 2:
T2 = GammaGd0;

23
src/spicelib/devices/bsim4/b4set.c
View File

@ -210,7 +210,7 @@ BSIM4instance **InstArray;
}
if (!model->BSIM4versionGiven)
model->BSIM4version = copy("4.8.0");
model->BSIM4version = copy("4.8.1");
if (!model->BSIM4toxrefGiven)
model->BSIM4toxref = 30.0e-10;
if (!model->BSIM4eotGiven)
@ -348,18 +348,31 @@ BSIM4instance **InstArray;
model->BSIM4eu = (model->BSIM4type == NMOS) ? 1.67 : 1.0;
if (!model->BSIM4ucsGiven)
model->BSIM4ucs = (model->BSIM4type == NMOS) ? 1.67 : 1.0;
if ((strcmp(model->BSIM4version, "4.8.1")) && (strcmp(model->BSIM4version, "4.81")))
{
if (!model->BSIM4uaGiven)
model->BSIM4ua = ((model->BSIM4mobMod == 2)) ? 1.0e-15 : 1.0e-9; /* unit m/V */
if (!model->BSIM4ucGiven)
model->BSIM4uc = (model->BSIM4mobMod == 1) ? -0.0465 : -0.0465e-9;
if (!model->BSIM4uc1Given)
model->BSIM4uc1 = (model->BSIM4mobMod == 1) ? -0.056 : -0.056e-9;
}
else
{
if (!model->BSIM4uaGiven)
model->BSIM4ua = ((model->BSIM4mobMod == 2 || model->BSIM4mobMod == 6)) ? 1.0e-15 : 1.0e-9; /* unit m/V */
/*printf("warning:ua=%g",model->BSIM4ua);*/
if (!model->BSIM4ucGiven)
model->BSIM4uc = (model->BSIM4mobMod == 1 || model->BSIM4mobMod == 5) ? -0.0465 : -0.0465e-9;
if (!model->BSIM4uc1Given)
model->BSIM4uc1 = (model->BSIM4mobMod == 1 || model->BSIM4mobMod == 5) ? -0.056 : -0.056e-9;
}
if (!model->BSIM4ua1Given)
model->BSIM4ua1 = 1.0e-9; /* unit m/V */
if (!model->BSIM4ubGiven)
model->BSIM4ub = 1.0e-19; /* unit (m/V)**2 */
if (!model->BSIM4ub1Given)
model->BSIM4ub1 = -1.0e-18; /* unit (m/V)**2 */
if (!model->BSIM4ucGiven)
model->BSIM4uc = (model->BSIM4mobMod == 1) ? -0.0465 : -0.0465e-9;
if (!model->BSIM4uc1Given)
model->BSIM4uc1 = (model->BSIM4mobMod == 1) ? -0.056 : -0.056e-9;
if (!model->BSIM4udGiven)
model->BSIM4ud = 0.0; /* unit m**(-2) */
if (!model->BSIM4ud1Given)

28
src/spicelib/devices/bsim4/b4temp.c
View File

@ -1349,10 +1349,32 @@ int Size_Not_Found, i;
/ pParam->BSIM4poxedge / pParam->BSIM4poxedge;
pParam->BSIM4Aechvb = (model->BSIM4type == NMOS) ? 4.97232e-7 : 3.42537e-7;
pParam->BSIM4Bechvb = (model->BSIM4type == NMOS) ? 7.45669e11 : 1.16645e12;
if ((strcmp(model->BSIM4version, "4.8.1")) && (strcmp(model->BSIM4version, "4.81")))
{
pParam->BSIM4AechvbEdgeS = pParam->BSIM4Aechvb * pParam->BSIM4weff
* model->BSIM4dlcig * pParam->BSIM4ToxRatioEdge;
pParam->BSIM4AechvbEdgeD = pParam->BSIM4Aechvb * pParam->BSIM4weff
* model->BSIM4dlcigd * pParam->BSIM4ToxRatioEdge;
}
else
{
if (model->BSIM4dlcig < 0.0)
{
printf("Warning: dlcig = %g is negative. Set to zero.\n", model->BSIM4dlcig);
model->BSIM4dlcig = 0.0;
}
pParam->BSIM4AechvbEdgeS = pParam->BSIM4Aechvb * pParam->BSIM4weff
* model->BSIM4dlcig * pParam->BSIM4ToxRatioEdge;
if (model->BSIM4dlcigd < 0.0)
{
printf("Warning: dlcigd = %g is negative. Set to zero.\n", model->BSIM4dlcigd);
model->BSIM4dlcigd = 0.0;
}
pParam->BSIM4AechvbEdgeD = pParam->BSIM4Aechvb * pParam->BSIM4weff
* model->BSIM4dlcigd * pParam->BSIM4ToxRatioEdge;
}
pParam->BSIM4BechvbEdge = -pParam->BSIM4Bechvb
* toxe * pParam->BSIM4poxedge;
pParam->BSIM4Aechvb *= pParam->BSIM4weff * pParam->BSIM4leff
@ -2289,8 +2311,6 @@ int Size_Not_Found, i;
/* Calculate n */
tmp1 = epssub / pParam->BSIM4Xdep0;
here->BSIM4nstar = Vtmeot / Charge_q *
(model->BSIM4coxe + tmp1 + pParam->BSIM4cit);
tmp2 = pParam->BSIM4nfactor * tmp1;
tmp3 = (tmp2 + pParam->BSIM4cdsc * Theta0 + pParam->BSIM4cit) / model->BSIM4coxe;
if (tmp3 >= -0.5)
@ -2337,7 +2357,7 @@ int Size_Not_Found, i;
niter++;
} while ((niter<=4)&&(ABS(toxpf-toxpi)>1e-12));
here->BSIM4toxp = toxpf;
here->BSIM4coxp = epsrox * EPS0 / model->BSIM4toxp;
here->BSIM4coxp = epsrox * EPS0 / here->BSIM4toxp;
} else {
here->BSIM4toxp = model->BSIM4toxp;
here->BSIM4coxp = model->BSIM4coxp;
@ -2345,7 +2365,7 @@ int Size_Not_Found, i;
if (BSIM4checkModel(model, here, ckt))
{
SPfrontEnd->IFerrorf (ERR_FATAL, "Fatal error(s) detected during BSIM4.6.0 parameter checking for %s in model %s", model->BSIM4modName, here->BSIM4name);
SPfrontEnd->IFerrorf (ERR_FATAL, "Fatal error(s) detected during BSIM4.8.1 parameter checking for %s in model %s", model->BSIM4modName, here->BSIM4name);
return(E_BADPARM);
}
} /* End instance */

8
tests/bsim4/nmos/qaSpec
View File

@ -15,12 +15,12 @@
//
`ifdef spice
nTypeSelectionArguments nmos level=14 version=4.8.0
pTypeSelectionArguments pmos level=14 version=4.8.0
nTypeSelectionArguments nmos level=14 version=4.5.0
pTypeSelectionArguments pmos level=14 version=4.5.0
`endif
`ifdef ngspice
nTypeSelectionArguments nmos level=14 version=4.8.0
pTypeSelectionArguments pmos level=14 version=4.8.0
nTypeSelectionArguments nmos level=14 version=4.8.1
pTypeSelectionArguments pmos level=14 version=4.8.1
`endif
`ifdef hspice
nTypeSelectionArguments nmos level=54 version=4.7

8
tests/bsim4/pmos/qaSpec
View File

@ -15,12 +15,12 @@
//
`ifdef spice
nTypeSelectionArguments pmos level=14 version=4.8.0
pTypeSelectionArguments nmos level=14 version=4.8.0
nTypeSelectionArguments pmos level=14 version=4.5.0
pTypeSelectionArguments nmos level=14 version=4.5.0
`endif
`ifdef ngspice
nTypeSelectionArguments pmos level=14 version=4.8.0
pTypeSelectionArguments nmos level=14 version=4.8.0
nTypeSelectionArguments pmos level=14 version=4.8.1
pTypeSelectionArguments nmos level=14 version=4.8.1
`endif
`ifdef hspice
nTypeSelectionArguments pmos level=54 version=4.7