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b4ld.c
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b4ld.c
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/**** BSIM4.7.0 Released by Darsen Lu 04/08/2011 ****/
/**** OpenMP support ngspice 06/28/2010 ****/
/**********
* Copyright 2006 Regents of the University of California. All rights reserved.
* File: b4ld.c of BSIM4.7.0.
* Author: 2000 Weidong Liu
* Authors: 2001- Xuemei Xi, Mohan Dunga, Ali Niknejad, Chenming Hu.
* Authors: 2006- Mohan Dunga, Ali Niknejad, Chenming Hu
* Authors: 2007- Mohan Dunga, Wenwei Yang, Ali Niknejad, Chenming Hu
* Authors: 2008- Wenwei Yang, Ali Niknejad, Chenming Hu
* Project Director: Prof. Chenming Hu.
* Modified by Xuemei Xi, 04/06/2001.
* Modified by Xuemei Xi, 10/05/2001.
* Modified by Xuemei Xi, 11/15/2002.
* Modified by Xuemei Xi, 05/09/2003.
* Modified by Xuemei Xi, 03/04/2004.
* Modified by Xuemei Xi, Mohan Dunga, 07/29/2005.
* Modified by Mohan Dunga, 12/13/2006.
* Modified by Mohan Dunga, Wenwei Yang, 05/18/2007.
* Modified by Wenwei Yang, 07/31/2008.
* Modified by Tanvir Morshed, Darsen Lu 03/27/2011
**********/
#include "ngspice/ngspice.h"
#include "ngspice/cktdefs.h"
#include "bsim4def.h"
#include "ngspice/trandefs.h"
#include "ngspice/const.h"
#include "ngspice/sperror.h"
#include "ngspice/devdefs.h"
#include "ngspice/suffix.h"
#include "GPUA/gpua.h"
#define MAX_EXPL 2.688117142e+43
#define MIN_EXPL 3.720075976e-44
#define EXPL_THRESHOLD 100.0
#define MAX_EXP 5.834617425e14
#define MIN_EXP 1.713908431e-15
#define EXP_THRESHOLD 34.0
#define EPS0 8.85418e-12
#define EPSSI 1.03594e-10
#define Charge_q 1.60219e-19
#define DELTA_1 0.02
#define DELTA_2 0.02
#define DELTA_3 0.02
#define DELTA_4 0.02
#define MM 3 /* smooth coeff */
#define DEXP(A,B,C) { \
if (A > EXP_THRESHOLD) { \
B = MAX_EXP*(1.0+(A)-EXP_THRESHOLD); \
C = MAX_EXP; \
} else if (A < -EXP_THRESHOLD) { \
B = MIN_EXP; \
C = 0; \
} else { \
B = exp(A); \
C = B; \
} \
}
#ifdef USE_OMP4
int BSIM4LoadOMP(BSIM4instance *here, CKTcircuit *ckt);
void BSIM4LoadRhsMat(GENmodel *inModel, CKTcircuit *ckt);
extern int nthreads;
#endif
int BSIM4polyDepletion(double phi, double ngate,double epsgate, double coxe, double Vgs, double *Vgs_eff, double *dVgs_eff_dVg);
int
BSIM4load(
GENmodel *inModel,
CKTcircuit *ckt)
{
#ifdef USE_OMP4
int idx;
BSIM4model *model = (BSIM4model*)inModel;
int good = 0;
BSIM4instance *here;
BSIM4instance **InstArray;
InstArray = model->BSIM4InstanceArray;
cuda_startKernel(inModel,ckt);
#pragma omp parallel for num_threads(nthreads) private(here)
for (idx = 0; idx < model->BSIM4InstCount; idx++) {
here = InstArray[idx];
good = BSIM4LoadOMP(here, ckt);
}
BSIM4LoadRhsMat(inModel, ckt);
return good;
}
int BSIM4LoadOMP(BSIM4instance *here, CKTcircuit *ckt) {
BSIM4model *model;
#else
BSIM4model *model = (BSIM4model*)inModel;
BSIM4instance *here;
#endif
double ceqgstot, dgstot_dvd, dgstot_dvg, dgstot_dvs, dgstot_dvb;
double ceqgdtot, dgdtot_dvd, dgdtot_dvg, dgdtot_dvs, dgdtot_dvb;
double gstot, gstotd, gstotg, gstots, gstotb, gspr, Rs, Rd;
double gdtot, gdtotd, gdtotg, gdtots, gdtotb, gdpr;
double vgs_eff, vgd_eff, dvgs_eff_dvg, dvgd_eff_dvg;
double dRs_dvg, dRd_dvg, dRs_dvb, dRd_dvb;
double dT0_dvg, dT1_dvb, dT3_dvg, dT3_dvb;
double vses, vdes, vdedo, delvses, delvded, delvdes;
double Isestot, cseshat, Idedtot, cdedhat;
#ifndef NEWCONV
double tol0, tol1, tol2, tol3, tol4, tol5, tol6;
#endif
double geltd, gcrg, gcrgg, gcrgd, gcrgs, gcrgb, ceqgcrg;
double vges, vgms, vgedo, vgmdo, vged, vgmd, delvged, delvgmd;
double delvges, delvgms, vgmb;
double gcgmgmb=0.0, gcgmdb=0.0, gcgmsb=0.0, gcdgmb, gcsgmb;
double gcgmbb=0.0, gcbgmb, qgmb, qgmid=0.0, ceqqgmid;
double vbd, vbs, vds, vgb, vgd, vgs, vgdo;
#ifndef PREDICTOR
double xfact;
#endif
double vdbs, vdbd, vsbs, vsbdo, vsbd;
double delvdbs, delvdbd, delvsbs;
double delvbd_jct, delvbs_jct, vbs_jct, vbd_jct;
double SourceSatCurrent, DrainSatCurrent;
double ag0, qgb, von, cbhat, VgstNVt, ExpVgst;
double ceqqb, ceqqd, ceqqg, ceqqjd=0.0, ceqqjs=0.0, ceq, geq;
double cdrain, cdhat, ceqdrn, ceqbd, ceqbs, ceqjd, ceqjs, gjbd, gjbs;
double czbd, czbdsw, czbdswg, czbs, czbssw, czbsswg, evbd, evbs, arg, sarg;
double delvbd, delvbs, delvds, delvgd, delvgs;
double Vfbeff, dVfbeff_dVg, dVfbeff_dVb, V3, V4;
double gcbdb, gcbgb, gcbsb, gcddb, gcdgb, gcdsb, gcgdb, gcggb, gcgsb, gcsdb;
double gcgbb, gcdbb, gcsbb, gcbbb;
double gcdbdb, gcsbsb;
double gcsgb, gcssb, MJD, MJSWD, MJSWGD, MJS, MJSWS, MJSWGS;
double qgate=0.0, qbulk=0.0, qdrn=0.0, qsrc, cqgate, cqbody, cqdrn;
double Vdb, Vds, Vgs, Vbs, Gmbs, FwdSum, RevSum;
double Igidl, Ggidld, Ggidlg, Ggidlb;
double Voxacc=0.0, dVoxacc_dVg=0.0, dVoxacc_dVb=0.0;
double Voxdepinv=0.0, dVoxdepinv_dVg=0.0, dVoxdepinv_dVd=0.0, dVoxdepinv_dVb=0.0;
double VxNVt=0.0, ExpVxNVt, Vaux=0.0, dVaux_dVg=0.0, dVaux_dVd=0.0, dVaux_dVb=0.0;
double Igc, dIgc_dVg, dIgc_dVd, dIgc_dVb;
double Igcs, dIgcs_dVg, dIgcs_dVd, dIgcs_dVb;
double Igcd, dIgcd_dVg, dIgcd_dVd, dIgcd_dVb;
double Igs, dIgs_dVg, dIgs_dVs, Igd, dIgd_dVg, dIgd_dVd;
double Igbacc, dIgbacc_dVg, dIgbacc_dVb;
double Igbinv, dIgbinv_dVg, dIgbinv_dVd, dIgbinv_dVb;
double Pigcd, dPigcd_dVg, dPigcd_dVd, dPigcd_dVb;
double Istoteq, gIstotg, gIstotd, gIstots, gIstotb;
double Idtoteq, gIdtotg, gIdtotd, gIdtots, gIdtotb;
double Ibtoteq, gIbtotg, gIbtotd, gIbtots, gIbtotb;
double Igtoteq, gIgtotg, gIgtotd, gIgtots, gIgtotb;
double Igstot, cgshat, Igdtot, cgdhat, Igbtot, cgbhat;
double Vgs_eff, Vfb=0.0, Vth_NarrowW;
/* double Vgd_eff, dVgd_eff_dVg; v4.7.0 */
double Phis, dPhis_dVb, sqrtPhis, dsqrtPhis_dVb, Vth, dVth_dVb, dVth_dVd;
double Vgst, dVgst_dVg, dVgst_dVb, dVgs_eff_dVg, Nvtms, Nvtmd;
double Vtm, Vtm0;
double n, dn_dVb, dn_dVd, voffcv, noff, dnoff_dVd, dnoff_dVb;
double V0, CoxWLcen, QovCox, LINK;
double DeltaPhi, dDeltaPhi_dVg, VgDP, dVgDP_dVg;
double Cox, Tox, Tcen, dTcen_dVg, dTcen_dVd, dTcen_dVb;
double Ccen, Coxeff, dCoxeff_dVd, dCoxeff_dVg, dCoxeff_dVb;
double Denomi, dDenomi_dVg, dDenomi_dVd, dDenomi_dVb;
double ueff, dueff_dVg, dueff_dVd, dueff_dVb;
double Esat, Vdsat;
double EsatL, dEsatL_dVg, dEsatL_dVd, dEsatL_dVb;
double dVdsat_dVg, dVdsat_dVb, dVdsat_dVd, Vasat, dAlphaz_dVg, dAlphaz_dVb;
double dVasat_dVg, dVasat_dVb, dVasat_dVd, Va, dVa_dVd, dVa_dVg, dVa_dVb;
double Vbseff, dVbseff_dVb, VbseffCV, dVbseffCV_dVb;
double VgsteffVth, dT11_dVg;
double Arg1, One_Third_CoxWL, Two_Third_CoxWL, Alphaz, CoxWL;
double T0=0.0, dT0_dVg, dT0_dVd, dT0_dVb;
double T1, dT1_dVg, dT1_dVd, dT1_dVb;
double T2, dT2_dVg, dT2_dVd, dT2_dVb;
double T3, dT3_dVg, dT3_dVd, dT3_dVb;
double T4, dT4_dVd, dT4_dVb;
double T5, dT5_dVg, dT5_dVd, dT5_dVb;
double T6, dT6_dVg, dT6_dVd, dT6_dVb;
double T7, dT7_dVg, dT7_dVd, dT7_dVb;
double T8, dT8_dVg, dT8_dVd, dT8_dVb;
double T9, dT9_dVg, dT9_dVd, dT9_dVb;
double T10, dT10_dVg, dT10_dVb, dT10_dVd;
double T11, T12, T13, T14;
double tmp, Abulk, dAbulk_dVb, Abulk0, dAbulk0_dVb;
double Cclm, dCclm_dVg, dCclm_dVd, dCclm_dVb;
double FP, dFP_dVg, PvagTerm, dPvagTerm_dVg, dPvagTerm_dVd, dPvagTerm_dVb;
double VADITS, dVADITS_dVg, dVADITS_dVd;
double Lpe_Vb, dDITS_Sft_dVb, dDITS_Sft_dVd;
double DITS_Sft2, dDITS_Sft2_dVd; /* v4.7 New DITS */
double VACLM, dVACLM_dVg, dVACLM_dVd, dVACLM_dVb;
double VADIBL, dVADIBL_dVg, dVADIBL_dVd, dVADIBL_dVb;
double Xdep, dXdep_dVb, lt1, dlt1_dVb, ltw, dltw_dVb, Delt_vth, dDelt_vth_dVb;
double Theta0, dTheta0_dVb;
double TempRatio, tmp1, tmp2, tmp3, tmp4;
double DIBL_Sft, dDIBL_Sft_dVd, Lambda, dLambda_dVg;
double Idtot, Ibtot, a1, ScalingFactor;
double Vgsteff, dVgsteff_dVg, dVgsteff_dVd, dVgsteff_dVb;
double Vdseff, dVdseff_dVg, dVdseff_dVd, dVdseff_dVb;
double VdseffCV, dVdseffCV_dVg, dVdseffCV_dVd, dVdseffCV_dVb;
double diffVds, dAbulk_dVg;
double beta, dbeta_dVg, dbeta_dVd, dbeta_dVb;
double gche, dgche_dVg, dgche_dVd, dgche_dVb;
double fgche1, dfgche1_dVg, dfgche1_dVd, dfgche1_dVb;
double fgche2, dfgche2_dVg, dfgche2_dVd, dfgche2_dVb;
double Idl, dIdl_dVg, dIdl_dVd, dIdl_dVb;
double Idsa, dIdsa_dVg, dIdsa_dVd, dIdsa_dVb;
double Ids, Gm, Gds, Gmb, devbs_dvb, devbd_dvb;
double Isub, Gbd, Gbg, Gbb;
double VASCBE, dVASCBE_dVg, dVASCBE_dVd, dVASCBE_dVb;
double CoxeffWovL;
double Rds, dRds_dVg, dRds_dVb, WVCox, WVCoxRds;
double Vgst2Vtm, VdsatCV;
double Leff, Weff, dWeff_dVg, dWeff_dVb;
double AbulkCV, dAbulkCV_dVb;
double qcheq, qdef, gqdef=0.0, cqdef=0.0, cqcheq=0.0;
double gcqdb=0.0, gcqsb=0.0, gcqgb=0.0, gcqbb=0.0;
double dxpart, sxpart, ggtg, ggtd, ggts, ggtb;
double ddxpart_dVd, ddxpart_dVg, ddxpart_dVb, ddxpart_dVs;
double dsxpart_dVd, dsxpart_dVg, dsxpart_dVb, dsxpart_dVs;
double gbspsp, gbbdp, gbbsp, gbspg, gbspb, gbspdp;
double gbdpdp, gbdpg, gbdpb, gbdpsp;
double qgdo, qgso, cgdo, cgso;
double Cgg, Cgd, Cgb, Cdg, Cdd, Cds;
double Csg, Csd, Css, Csb, Cbg, Cbd, Cbb;
double Cgg1, Cgd1, Cgb1, Cbg1, Cbb1, Cbd1, Qac0, Qsub0;
double dQac0_dVg, dQac0_dVb, dQsub0_dVg, dQsub0_dVd, dQsub0_dVb;
double ggidld, ggidlg, ggidlb, ggislg, ggislb, ggisls;
double Igisl, Ggislg, Ggislb, Ggisls;
double Nvtmrss, Nvtmrssws, Nvtmrsswgs;
double Nvtmrsd, Nvtmrsswd, Nvtmrsswgd;
double vs, Fsevl, dvs_dVg, dvs_dVd, dvs_dVb, dFsevl_dVg, dFsevl_dVd, dFsevl_dVb;
double vgdx, vgsx, epssub, toxe, epsrox;
struct bsim4SizeDependParam *pParam;
int ByPass, ChargeComputationNeeded, error, Check, Check1, Check2;
double m;
#ifdef USE_OMP4
model = here->BSIM4modPtr;
#endif
ScalingFactor = 1.0e-9;
ChargeComputationNeeded =
((ckt->CKTmode & (MODEAC | MODETRAN | MODEINITSMSIG)) ||
((ckt->CKTmode & MODETRANOP) && (ckt->CKTmode & MODEUIC)))
? 1 : 0;
#ifndef USE_OMP4
for (; model != NULL; model = model->BSIM4nextModel)
{ for (here = model->BSIM4instances; here != NULL;
here = here->BSIM4nextInstance)
{ if (here->BSIM4owner != ARCHme) continue;
#endif
Check = Check1 = Check2 = 1;
ByPass = 0;
pParam = here->pParam;
if ((ckt->CKTmode & MODEINITSMSIG))
{ vds = *(ckt->CKTstate0 + here->BSIM4vds);
vgs = *(ckt->CKTstate0 + here->BSIM4vgs);
vbs = *(ckt->CKTstate0 + here->BSIM4vbs);
vges = *(ckt->CKTstate0 + here->BSIM4vges);
vgms = *(ckt->CKTstate0 + here->BSIM4vgms);
vdbs = *(ckt->CKTstate0 + here->BSIM4vdbs);
vsbs = *(ckt->CKTstate0 + here->BSIM4vsbs);
vses = *(ckt->CKTstate0 + here->BSIM4vses);
vdes = *(ckt->CKTstate0 + here->BSIM4vdes);
qdef = *(ckt->CKTstate0 + here->BSIM4qdef);
}
else if ((ckt->CKTmode & MODEINITTRAN))
{ vds = *(ckt->CKTstate1 + here->BSIM4vds);
vgs = *(ckt->CKTstate1 + here->BSIM4vgs);
vbs = *(ckt->CKTstate1 + here->BSIM4vbs);
vges = *(ckt->CKTstate1 + here->BSIM4vges);
vgms = *(ckt->CKTstate1 + here->BSIM4vgms);
vdbs = *(ckt->CKTstate1 + here->BSIM4vdbs);
vsbs = *(ckt->CKTstate1 + here->BSIM4vsbs);
vses = *(ckt->CKTstate1 + here->BSIM4vses);
vdes = *(ckt->CKTstate1 + here->BSIM4vdes);
qdef = *(ckt->CKTstate1 + here->BSIM4qdef);
}
else if ((ckt->CKTmode & MODEINITJCT) && !here->BSIM4off)
{ vds = model->BSIM4type * here->BSIM4icVDS;
vgs = vges = vgms = model->BSIM4type * here->BSIM4icVGS;
vbs = vdbs = vsbs = model->BSIM4type * here->BSIM4icVBS;
if (vds > 0.0)
{ vdes = vds + 0.01;
vses = -0.01;
}
else if (vds < 0.0)
{ vdes = vds - 0.01;
vses = 0.01;
}
else
vdes = vses = 0.0;
qdef = 0.0;
if ((vds == 0.0) && (vgs == 0.0) && (vbs == 0.0) &&
((ckt->CKTmode & (MODETRAN | MODEAC|MODEDCOP |
MODEDCTRANCURVE)) || (!(ckt->CKTmode & MODEUIC))))
{ vds = 0.1;
vdes = 0.11;
vses = -0.01;
vgs = vges = vgms = model->BSIM4type
* here->BSIM4vth0 + 0.1;
vbs = vdbs = vsbs = 0.0;
}
}
else if ((ckt->CKTmode & (MODEINITJCT | MODEINITFIX)) &&
(here->BSIM4off))
{ vds = vgs = vbs = vges = vgms = 0.0;
vdbs = vsbs = vdes = vses = qdef = 0.0;
}
else
{
#ifndef PREDICTOR
if ((ckt->CKTmode & MODEINITPRED))
{ xfact = ckt->CKTdelta / ckt->CKTdeltaOld[1];
*(ckt->CKTstate0 + here->BSIM4vds) =
*(ckt->CKTstate1 + here->BSIM4vds);
vds = (1.0 + xfact)* (*(ckt->CKTstate1 + here->BSIM4vds))
- (xfact * (*(ckt->CKTstate2 + here->BSIM4vds)));
*(ckt->CKTstate0 + here->BSIM4vgs) =
*(ckt->CKTstate1 + here->BSIM4vgs);
vgs = (1.0 + xfact)* (*(ckt->CKTstate1 + here->BSIM4vgs))
- (xfact * (*(ckt->CKTstate2 + here->BSIM4vgs)));
*(ckt->CKTstate0 + here->BSIM4vges) =
*(ckt->CKTstate1 + here->BSIM4vges);
vges = (1.0 + xfact)* (*(ckt->CKTstate1 + here->BSIM4vges))
- (xfact * (*(ckt->CKTstate2 + here->BSIM4vges)));
*(ckt->CKTstate0 + here->BSIM4vgms) =
*(ckt->CKTstate1 + here->BSIM4vgms);
vgms = (1.0 + xfact)* (*(ckt->CKTstate1 + here->BSIM4vgms))
- (xfact * (*(ckt->CKTstate2 + here->BSIM4vgms)));
*(ckt->CKTstate0 + here->BSIM4vbs) =
*(ckt->CKTstate1 + here->BSIM4vbs);
vbs = (1.0 + xfact)* (*(ckt->CKTstate1 + here->BSIM4vbs))
- (xfact * (*(ckt->CKTstate2 + here->BSIM4vbs)));
*(ckt->CKTstate0 + here->BSIM4vbd) =
*(ckt->CKTstate0 + here->BSIM4vbs)
- *(ckt->CKTstate0 + here->BSIM4vds);
*(ckt->CKTstate0 + here->BSIM4vdbs) =
*(ckt->CKTstate1 + here->BSIM4vdbs);
vdbs = (1.0 + xfact)* (*(ckt->CKTstate1 + here->BSIM4vdbs))
- (xfact * (*(ckt->CKTstate2 + here->BSIM4vdbs)));
*(ckt->CKTstate0 + here->BSIM4vdbd) =
*(ckt->CKTstate0 + here->BSIM4vdbs)
- *(ckt->CKTstate0 + here->BSIM4vds);
*(ckt->CKTstate0 + here->BSIM4vsbs) =
*(ckt->CKTstate1 + here->BSIM4vsbs);
vsbs = (1.0 + xfact)* (*(ckt->CKTstate1 + here->BSIM4vsbs))
- (xfact * (*(ckt->CKTstate2 + here->BSIM4vsbs)));
*(ckt->CKTstate0 + here->BSIM4vses) =
*(ckt->CKTstate1 + here->BSIM4vses);
vses = (1.0 + xfact)* (*(ckt->CKTstate1 + here->BSIM4vses))
- (xfact * (*(ckt->CKTstate2 + here->BSIM4vses)));
*(ckt->CKTstate0 + here->BSIM4vdes) =
*(ckt->CKTstate1 + here->BSIM4vdes);
vdes = (1.0 + xfact)* (*(ckt->CKTstate1 + here->BSIM4vdes))
- (xfact * (*(ckt->CKTstate2 + here->BSIM4vdes)));
*(ckt->CKTstate0 + here->BSIM4qdef) =
*(ckt->CKTstate1 + here->BSIM4qdef);
qdef = (1.0 + xfact)* (*(ckt->CKTstate1 + here->BSIM4qdef))
-(xfact * (*(ckt->CKTstate2 + here->BSIM4qdef)));
}
else
{
#endif /* PREDICTOR */
vds = model->BSIM4type
* (*(ckt->CKTrhsOld + here->BSIM4dNodePrime)
- *(ckt->CKTrhsOld + here->BSIM4sNodePrime));
vgs = model->BSIM4type
* (*(ckt->CKTrhsOld + here->BSIM4gNodePrime)
- *(ckt->CKTrhsOld + here->BSIM4sNodePrime));
vbs = model->BSIM4type
* (*(ckt->CKTrhsOld + here->BSIM4bNodePrime)
- *(ckt->CKTrhsOld + here->BSIM4sNodePrime));
vges = model->BSIM4type
* (*(ckt->CKTrhsOld + here->BSIM4gNodeExt)
- *(ckt->CKTrhsOld + here->BSIM4sNodePrime));
vgms = model->BSIM4type
* (*(ckt->CKTrhsOld + here->BSIM4gNodeMid)
- *(ckt->CKTrhsOld + here->BSIM4sNodePrime));
vdbs = model->BSIM4type
* (*(ckt->CKTrhsOld + here->BSIM4dbNode)
- *(ckt->CKTrhsOld + here->BSIM4sNodePrime));
vsbs = model->BSIM4type
* (*(ckt->CKTrhsOld + here->BSIM4sbNode)
- *(ckt->CKTrhsOld + here->BSIM4sNodePrime));
vses = model->BSIM4type
* (*(ckt->CKTrhsOld + here->BSIM4sNode)
- *(ckt->CKTrhsOld + here->BSIM4sNodePrime));
vdes = model->BSIM4type
* (*(ckt->CKTrhsOld + here->BSIM4dNode)
- *(ckt->CKTrhsOld + here->BSIM4sNodePrime));
qdef = model->BSIM4type
* (*(ckt->CKTrhsOld + here->BSIM4qNode));
#ifndef PREDICTOR
}
#endif /* PREDICTOR */
vgdo = *(ckt->CKTstate0 + here->BSIM4vgs)
- *(ckt->CKTstate0 + here->BSIM4vds);
vgedo = *(ckt->CKTstate0 + here->BSIM4vges)
- *(ckt->CKTstate0 + here->BSIM4vds);
vgmdo = *(ckt->CKTstate0 + here->BSIM4vgms)
- *(ckt->CKTstate0 + here->BSIM4vds);
vbd = vbs - vds;
vdbd = vdbs - vds;
vgd = vgs - vds;
vged = vges - vds;
vgmd = vgms - vds;
delvbd = vbd - *(ckt->CKTstate0 + here->BSIM4vbd);
delvdbd = vdbd - *(ckt->CKTstate0 + here->BSIM4vdbd);
delvgd = vgd - vgdo;
delvged = vged - vgedo;
delvgmd = vgmd - vgmdo;
delvds = vds - *(ckt->CKTstate0 + here->BSIM4vds);
delvgs = vgs - *(ckt->CKTstate0 + here->BSIM4vgs);
delvges = vges - *(ckt->CKTstate0 + here->BSIM4vges);
delvgms = vgms - *(ckt->CKTstate0 + here->BSIM4vgms);
delvbs = vbs - *(ckt->CKTstate0 + here->BSIM4vbs);
delvdbs = vdbs - *(ckt->CKTstate0 + here->BSIM4vdbs);
delvsbs = vsbs - *(ckt->CKTstate0 + here->BSIM4vsbs);
delvses = vses - (*(ckt->CKTstate0 + here->BSIM4vses));
vdedo = *(ckt->CKTstate0 + here->BSIM4vdes)
- *(ckt->CKTstate0 + here->BSIM4vds);
delvdes = vdes - *(ckt->CKTstate0 + here->BSIM4vdes);
delvded = vdes - vds - vdedo;
delvbd_jct = (!here->BSIM4rbodyMod) ? delvbd : delvdbd;
delvbs_jct = (!here->BSIM4rbodyMod) ? delvbs : delvsbs;
if (here->BSIM4mode >= 0)
{ Idtot = here->BSIM4cd + here->BSIM4csub - here->BSIM4cbd
+ here->BSIM4Igidl;
cdhat = Idtot - here->BSIM4gbd * delvbd_jct
+ (here->BSIM4gmbs + here->BSIM4gbbs + here->BSIM4ggidlb) * delvbs
+ (here->BSIM4gm + here->BSIM4gbgs + here->BSIM4ggidlg) * delvgs
+ (here->BSIM4gds + here->BSIM4gbds + here->BSIM4ggidld) * delvds;
Ibtot = here->BSIM4cbs + here->BSIM4cbd
- here->BSIM4Igidl - here->BSIM4Igisl - here->BSIM4csub;
cbhat = Ibtot + here->BSIM4gbd * delvbd_jct
+ here->BSIM4gbs * delvbs_jct - (here->BSIM4gbbs + here->BSIM4ggidlb)
* delvbs - (here->BSIM4gbgs + here->BSIM4ggidlg) * delvgs
- (here->BSIM4gbds + here->BSIM4ggidld - here->BSIM4ggisls) * delvds
- here->BSIM4ggislg * delvgd - here->BSIM4ggislb* delvbd;
Igstot = here->BSIM4Igs + here->BSIM4Igcs;
cgshat = Igstot + (here->BSIM4gIgsg + here->BSIM4gIgcsg) * delvgs
+ here->BSIM4gIgcsd * delvds + here->BSIM4gIgcsb * delvbs;
Igdtot = here->BSIM4Igd + here->BSIM4Igcd;
cgdhat = Igdtot + here->BSIM4gIgdg * delvgd + here->BSIM4gIgcdg * delvgs
+ here->BSIM4gIgcdd * delvds + here->BSIM4gIgcdb * delvbs;
Igbtot = here->BSIM4Igb;
cgbhat = here->BSIM4Igb + here->BSIM4gIgbg * delvgs + here->BSIM4gIgbd
* delvds + here->BSIM4gIgbb * delvbs;
}
else
{ Idtot = here->BSIM4cd + here->BSIM4cbd - here->BSIM4Igidl; /* bugfix */
cdhat = Idtot + here->BSIM4gbd * delvbd_jct + here->BSIM4gmbs
* delvbd + here->BSIM4gm * delvgd
- (here->BSIM4gds + here->BSIM4ggidls) * delvds
- here->BSIM4ggidlg * delvgs - here->BSIM4ggidlb * delvbs;
Ibtot = here->BSIM4cbs + here->BSIM4cbd
- here->BSIM4Igidl - here->BSIM4Igisl - here->BSIM4csub;
cbhat = Ibtot + here->BSIM4gbs * delvbs_jct + here->BSIM4gbd
* delvbd_jct - (here->BSIM4gbbs + here->BSIM4ggislb) * delvbd
- (here->BSIM4gbgs + here->BSIM4ggislg) * delvgd
+ (here->BSIM4gbds + here->BSIM4ggisld - here->BSIM4ggidls) * delvds
- here->BSIM4ggidlg * delvgs - here->BSIM4ggidlb * delvbs;
Igstot = here->BSIM4Igs + here->BSIM4Igcd;
cgshat = Igstot + here->BSIM4gIgsg * delvgs + here->BSIM4gIgcdg * delvgd
- here->BSIM4gIgcdd * delvds + here->BSIM4gIgcdb * delvbd;
Igdtot = here->BSIM4Igd + here->BSIM4Igcs;
cgdhat = Igdtot + (here->BSIM4gIgdg + here->BSIM4gIgcsg) * delvgd
- here->BSIM4gIgcsd * delvds + here->BSIM4gIgcsb * delvbd;
Igbtot = here->BSIM4Igb;
cgbhat = here->BSIM4Igb + here->BSIM4gIgbg * delvgd - here->BSIM4gIgbd
* delvds + here->BSIM4gIgbb * delvbd;
}
Isestot = here->BSIM4gstot * (*(ckt->CKTstate0 + here->BSIM4vses));
cseshat = Isestot + here->BSIM4gstot * delvses
+ here->BSIM4gstotd * delvds + here->BSIM4gstotg * delvgs
+ here->BSIM4gstotb * delvbs;
Idedtot = here->BSIM4gdtot * vdedo;
cdedhat = Idedtot + here->BSIM4gdtot * delvded
+ here->BSIM4gdtotd * delvds + here->BSIM4gdtotg * delvgs
+ here->BSIM4gdtotb * delvbs;
#ifndef NOBYPASS
/* Following should be one IF statement, but some C compilers
* can't handle that all at once, so we split it into several
* successive IF's */
if ((!(ckt->CKTmode & MODEINITPRED)) && (ckt->CKTbypass))
if ((fabs(delvds) < (ckt->CKTreltol * MAX(fabs(vds),
fabs(*(ckt->CKTstate0 + here->BSIM4vds))) + ckt->CKTvoltTol)))
if ((fabs(delvgs) < (ckt->CKTreltol * MAX(fabs(vgs),
fabs(*(ckt->CKTstate0 + here->BSIM4vgs))) + ckt->CKTvoltTol)))
if ((fabs(delvbs) < (ckt->CKTreltol * MAX(fabs(vbs),
fabs(*(ckt->CKTstate0 + here->BSIM4vbs))) + ckt->CKTvoltTol)))
if ((fabs(delvbd) < (ckt->CKTreltol * MAX(fabs(vbd),
fabs(*(ckt->CKTstate0 + here->BSIM4vbd))) + ckt->CKTvoltTol)))
if ((here->BSIM4rgateMod == 0) || (here->BSIM4rgateMod == 1)
|| (fabs(delvges) < (ckt->CKTreltol * MAX(fabs(vges),
fabs(*(ckt->CKTstate0 + here->BSIM4vges))) + ckt->CKTvoltTol)))
if ((here->BSIM4rgateMod != 3) || (fabs(delvgms) < (ckt->CKTreltol
* MAX(fabs(vgms), fabs(*(ckt->CKTstate0 + here->BSIM4vgms)))
+ ckt->CKTvoltTol)))
if ((!here->BSIM4rbodyMod) || (fabs(delvdbs) < (ckt->CKTreltol
* MAX(fabs(vdbs), fabs(*(ckt->CKTstate0 + here->BSIM4vdbs)))
+ ckt->CKTvoltTol)))
if ((!here->BSIM4rbodyMod) || (fabs(delvdbd) < (ckt->CKTreltol
* MAX(fabs(vdbd), fabs(*(ckt->CKTstate0 + here->BSIM4vdbd)))
+ ckt->CKTvoltTol)))
if ((!here->BSIM4rbodyMod) || (fabs(delvsbs) < (ckt->CKTreltol
* MAX(fabs(vsbs), fabs(*(ckt->CKTstate0 + here->BSIM4vsbs)))
+ ckt->CKTvoltTol)))
if ((!model->BSIM4rdsMod) || (fabs(delvses) < (ckt->CKTreltol
* MAX(fabs(vses), fabs(*(ckt->CKTstate0 + here->BSIM4vses)))
+ ckt->CKTvoltTol)))
if ((!model->BSIM4rdsMod) || (fabs(delvdes) < (ckt->CKTreltol
* MAX(fabs(vdes), fabs(*(ckt->CKTstate0 + here->BSIM4vdes)))
+ ckt->CKTvoltTol)))
if ((fabs(cdhat - Idtot) < ckt->CKTreltol
* MAX(fabs(cdhat), fabs(Idtot)) + ckt->CKTabstol))
if ((fabs(cbhat - Ibtot) < ckt->CKTreltol
* MAX(fabs(cbhat), fabs(Ibtot)) + ckt->CKTabstol))
if ((!model->BSIM4igcMod) || ((fabs(cgshat - Igstot) < ckt->CKTreltol
* MAX(fabs(cgshat), fabs(Igstot)) + ckt->CKTabstol)))
if ((!model->BSIM4igcMod) || ((fabs(cgdhat - Igdtot) < ckt->CKTreltol
* MAX(fabs(cgdhat), fabs(Igdtot)) + ckt->CKTabstol)))
if ((!model->BSIM4igbMod) || ((fabs(cgbhat - Igbtot) < ckt->CKTreltol
* MAX(fabs(cgbhat), fabs(Igbtot)) + ckt->CKTabstol)))
if ((!model->BSIM4rdsMod) || ((fabs(cseshat - Isestot) < ckt->CKTreltol
* MAX(fabs(cseshat), fabs(Isestot)) + ckt->CKTabstol)))
if ((!model->BSIM4rdsMod) || ((fabs(cdedhat - Idedtot) < ckt->CKTreltol
* MAX(fabs(cdedhat), fabs(Idedtot)) + ckt->CKTabstol)))
{ vds = *(ckt->CKTstate0 + here->BSIM4vds);
vgs = *(ckt->CKTstate0 + here->BSIM4vgs);
vbs = *(ckt->CKTstate0 + here->BSIM4vbs);
vges = *(ckt->CKTstate0 + here->BSIM4vges);
vgms = *(ckt->CKTstate0 + here->BSIM4vgms);
vbd = *(ckt->CKTstate0 + here->BSIM4vbd);
vdbs = *(ckt->CKTstate0 + here->BSIM4vdbs);
vdbd = *(ckt->CKTstate0 + here->BSIM4vdbd);
vsbs = *(ckt->CKTstate0 + here->BSIM4vsbs);
vses = *(ckt->CKTstate0 + here->BSIM4vses);
vdes = *(ckt->CKTstate0 + here->BSIM4vdes);
vgd = vgs - vds;
vgb = vgs - vbs;
vged = vges - vds;
vgmd = vgms - vds;
vgmb = vgms - vbs;
vbs_jct = (!here->BSIM4rbodyMod) ? vbs : vsbs;
vbd_jct = (!here->BSIM4rbodyMod) ? vbd : vdbd;
/*** qdef should not be kept fixed even if vgs, vds & vbs has converged
**** qdef = *(ckt->CKTstate0 + here->BSIM4qdef);
***/
cdrain = here->BSIM4cd;
if ((ckt->CKTmode & (MODETRAN | MODEAC)) ||
((ckt->CKTmode & MODETRANOP) &&
(ckt->CKTmode & MODEUIC)))
{ ByPass = 1;
qgate = here->BSIM4qgate;
qbulk = here->BSIM4qbulk;
qdrn = here->BSIM4qdrn;
cgdo = here->BSIM4cgdo;
qgdo = here->BSIM4qgdo;
cgso = here->BSIM4cgso;
qgso = here->BSIM4qgso;
goto line755;
}
else
goto line850;
}
#endif /*NOBYPASS*/
von = here->BSIM4von;
if (*(ckt->CKTstate0 + here->BSIM4vds) >= 0.0)
{ vgs = DEVfetlim(vgs, *(ckt->CKTstate0 + here->BSIM4vgs), von);
vds = vgs - vgd;
vds = DEVlimvds(vds, *(ckt->CKTstate0 + here->BSIM4vds));
vgd = vgs - vds;
if (here->BSIM4rgateMod == 3)
{ vges = DEVfetlim(vges, *(ckt->CKTstate0 + here->BSIM4vges), von);
vgms = DEVfetlim(vgms, *(ckt->CKTstate0 + here->BSIM4vgms), von);
vged = vges - vds;
vgmd = vgms - vds;
}
else if ((here->BSIM4rgateMod == 1) || (here->BSIM4rgateMod == 2))
{ vges = DEVfetlim(vges, *(ckt->CKTstate0 + here->BSIM4vges), von);
vged = vges - vds;
}
if (model->BSIM4rdsMod)
{ vdes = DEVlimvds(vdes, *(ckt->CKTstate0 + here->BSIM4vdes));
vses = -DEVlimvds(-vses, -(*(ckt->CKTstate0 + here->BSIM4vses)));
}
}
else
{ vgd = DEVfetlim(vgd, vgdo, von);
vds = vgs - vgd;
vds = -DEVlimvds(-vds, -(*(ckt->CKTstate0 + here->BSIM4vds)));
vgs = vgd + vds;
if (here->BSIM4rgateMod == 3)
{ vged = DEVfetlim(vged, vgedo, von);
vges = vged + vds;
vgmd = DEVfetlim(vgmd, vgmdo, von);
vgms = vgmd + vds;
}
if ((here->BSIM4rgateMod == 1) || (here->BSIM4rgateMod == 2))
{ vged = DEVfetlim(vged, vgedo, von);
vges = vged + vds;
}
if (model->BSIM4rdsMod)
{ vdes = -DEVlimvds(-vdes, -(*(ckt->CKTstate0 + here->BSIM4vdes)));
vses = DEVlimvds(vses, *(ckt->CKTstate0 + here->BSIM4vses));
}
}
if (vds >= 0.0)
{ vbs = DEVpnjlim(vbs, *(ckt->CKTstate0 + here->BSIM4vbs),
CONSTvt0, model->BSIM4vcrit, &Check);
vbd = vbs - vds;
if (here->BSIM4rbodyMod)
{ vdbs = DEVpnjlim(vdbs, *(ckt->CKTstate0 + here->BSIM4vdbs),
CONSTvt0, model->BSIM4vcrit, &Check1);
vdbd = vdbs - vds;
vsbs = DEVpnjlim(vsbs, *(ckt->CKTstate0 + here->BSIM4vsbs),
CONSTvt0, model->BSIM4vcrit, &Check2);
if ((Check1 == 0) && (Check2 == 0))
Check = 0;
else
Check = 1;
}
}
else
{ vbd = DEVpnjlim(vbd, *(ckt->CKTstate0 + here->BSIM4vbd),
CONSTvt0, model->BSIM4vcrit, &Check);
vbs = vbd + vds;
if (here->BSIM4rbodyMod)
{ vdbd = DEVpnjlim(vdbd, *(ckt->CKTstate0 + here->BSIM4vdbd),
CONSTvt0, model->BSIM4vcrit, &Check1);
vdbs = vdbd + vds;
vsbdo = *(ckt->CKTstate0 + here->BSIM4vsbs)
- *(ckt->CKTstate0 + here->BSIM4vds);
vsbd = vsbs - vds;
vsbd = DEVpnjlim(vsbd, vsbdo, CONSTvt0, model->BSIM4vcrit, &Check2);
vsbs = vsbd + vds;
if ((Check1 == 0) && (Check2 == 0))
Check = 0;
else
Check = 1;
}
}
}
/* Calculate DC currents and their derivatives */
vbd = vbs - vds;
vgd = vgs - vds;
vgb = vgs - vbs;
vged = vges - vds;
vgmd = vgms - vds;
vgmb = vgms - vbs;
vdbd = vdbs - vds;
vbs_jct = (!here->BSIM4rbodyMod) ? vbs : vsbs;
vbd_jct = (!here->BSIM4rbodyMod) ? vbd : vdbd;
/* Source/drain junction diode DC model begins */
Nvtms = model->BSIM4vtm * model->BSIM4SjctEmissionCoeff;
/* if ((here->BSIM4Aseff <= 0.0) && (here->BSIM4Pseff <= 0.0))
{ SourceSatCurrent = 1.0e-14;
} v4.7 */
if ((here->BSIM4Aseff <= 0.0) && (here->BSIM4Pseff <= 0.0))
{ SourceSatCurrent = 0.0;
}
else
{ SourceSatCurrent = here->BSIM4Aseff * model->BSIM4SjctTempSatCurDensity
+ here->BSIM4Pseff * model->BSIM4SjctSidewallTempSatCurDensity
+ pParam->BSIM4weffCJ * here->BSIM4nf
* model->BSIM4SjctGateSidewallTempSatCurDensity;
}
if (SourceSatCurrent <= 0.0)
{ here->BSIM4gbs = ckt->CKTgmin;
here->BSIM4cbs = here->BSIM4gbs * vbs_jct;
}
else
{ switch(model->BSIM4dioMod)
{ case 0:
evbs = exp(vbs_jct / Nvtms);
T1 = model->BSIM4xjbvs * exp(-(model->BSIM4bvs + vbs_jct) / Nvtms);
/* WDLiu: Magic T1 in this form; different from BSIM4 beta. */
here->BSIM4gbs = SourceSatCurrent * (evbs + T1) / Nvtms + ckt->CKTgmin;
here->BSIM4cbs = SourceSatCurrent * (evbs + here->BSIM4XExpBVS
- T1 - 1.0) + ckt->CKTgmin * vbs_jct;
break;
case 1:
T2 = vbs_jct / Nvtms;
if (T2 < -EXP_THRESHOLD)
{ here->BSIM4gbs = ckt->CKTgmin;
here->BSIM4cbs = SourceSatCurrent * (MIN_EXP - 1.0)
+ ckt->CKTgmin * vbs_jct;
}
else if (vbs_jct <= here->BSIM4vjsmFwd)
{ evbs = exp(T2);
here->BSIM4gbs = SourceSatCurrent * evbs / Nvtms + ckt->CKTgmin;
here->BSIM4cbs = SourceSatCurrent * (evbs - 1.0)
+ ckt->CKTgmin * vbs_jct;
}
else
{ T0 = here->BSIM4IVjsmFwd / Nvtms;
here->BSIM4gbs = T0 + ckt->CKTgmin;
here->BSIM4cbs = here->BSIM4IVjsmFwd - SourceSatCurrent + T0
* (vbs_jct - here->BSIM4vjsmFwd) + ckt->CKTgmin * vbs_jct;
}
break;
case 2:
if (vbs_jct < here->BSIM4vjsmRev)
{ T0 = vbs_jct / Nvtms;
if (T0 < -EXP_THRESHOLD)
{ evbs = MIN_EXP;
devbs_dvb = 0.0;
}
else
{ evbs = exp(T0);
devbs_dvb = evbs / Nvtms;
}
T1 = evbs - 1.0;
T2 = here->BSIM4IVjsmRev + here->BSIM4SslpRev
* (vbs_jct - here->BSIM4vjsmRev);
here->BSIM4gbs = devbs_dvb * T2 + T1 * here->BSIM4SslpRev + ckt->CKTgmin;
here->BSIM4cbs = T1 * T2 + ckt->CKTgmin * vbs_jct;
}
else if (vbs_jct <= here->BSIM4vjsmFwd)
{ T0 = vbs_jct / Nvtms;
if (T0 < -EXP_THRESHOLD)
{ evbs = MIN_EXP;
devbs_dvb = 0.0;
}
else
{ evbs = exp(T0);
devbs_dvb = evbs / Nvtms;
}
T1 = (model->BSIM4bvs + vbs_jct) / Nvtms;
if (T1 > EXP_THRESHOLD)
{ T2 = MIN_EXP;
T3 = 0.0;
}
else
{ T2 = exp(-T1);
T3 = -T2 /Nvtms;
}
here->BSIM4gbs = SourceSatCurrent * (devbs_dvb - model->BSIM4xjbvs * T3)
+ ckt->CKTgmin;
here->BSIM4cbs = SourceSatCurrent * (evbs + here->BSIM4XExpBVS - 1.0
- model->BSIM4xjbvs * T2) + ckt->CKTgmin * vbs_jct;
}
else
{ here->BSIM4gbs = here->BSIM4SslpFwd + ckt->CKTgmin;
here->BSIM4cbs = here->BSIM4IVjsmFwd + here->BSIM4SslpFwd * (vbs_jct
- here->BSIM4vjsmFwd) + ckt->CKTgmin * vbs_jct;
}
break;
default: break;
}
}
Nvtmd = model->BSIM4vtm * model->BSIM4DjctEmissionCoeff;
/* if ((here->BSIM4Adeff <= 0.0) && (here->BSIM4Pdeff <= 0.0))
{ DrainSatCurrent = 1.0e-14;
} v4.7 */
if ((here->BSIM4Adeff <= 0.0) && (here->BSIM4Pdeff <= 0.0))
{ DrainSatCurrent = 0.0;
}
else
{ DrainSatCurrent = here->BSIM4Adeff * model->BSIM4DjctTempSatCurDensity
+ here->BSIM4Pdeff * model->BSIM4DjctSidewallTempSatCurDensity
+ pParam->BSIM4weffCJ * here->BSIM4nf
* model->BSIM4DjctGateSidewallTempSatCurDensity;
}
if (DrainSatCurrent <= 0.0)
{ here->BSIM4gbd = ckt->CKTgmin;
here->BSIM4cbd = here->BSIM4gbd * vbd_jct;
}
else
{ switch(model->BSIM4dioMod)
{ case 0:
evbd = exp(vbd_jct / Nvtmd);
T1 = model->BSIM4xjbvd * exp(-(model->BSIM4bvd + vbd_jct) / Nvtmd);
/* WDLiu: Magic T1 in this form; different from BSIM4 beta. */
here->BSIM4gbd = DrainSatCurrent * (evbd + T1) / Nvtmd + ckt->CKTgmin;
here->BSIM4cbd = DrainSatCurrent * (evbd + here->BSIM4XExpBVD
- T1 - 1.0) + ckt->CKTgmin * vbd_jct;
break;
case 1:
T2 = vbd_jct / Nvtmd;
if (T2 < -EXP_THRESHOLD)
{ here->BSIM4gbd = ckt->CKTgmin;
here->BSIM4cbd = DrainSatCurrent * (MIN_EXP - 1.0)
+ ckt->CKTgmin * vbd_jct;
}
else if (vbd_jct <= here->BSIM4vjdmFwd)
{ evbd = exp(T2);
here->BSIM4gbd = DrainSatCurrent * evbd / Nvtmd + ckt->CKTgmin;
here->BSIM4cbd = DrainSatCurrent * (evbd - 1.0)
+ ckt->CKTgmin * vbd_jct;
}
else
{ T0 = here->BSIM4IVjdmFwd / Nvtmd;
here->BSIM4gbd = T0 + ckt->CKTgmin;
here->BSIM4cbd = here->BSIM4IVjdmFwd - DrainSatCurrent + T0
* (vbd_jct - here->BSIM4vjdmFwd) + ckt->CKTgmin * vbd_jct;
}
break;
case 2:
if (vbd_jct < here->BSIM4vjdmRev)
{ T0 = vbd_jct / Nvtmd;
if (T0 < -EXP_THRESHOLD)
{ evbd = MIN_EXP;
devbd_dvb = 0.0;
}
else
{ evbd = exp(T0);
devbd_dvb = evbd / Nvtmd;
}
T1 = evbd - 1.0;
T2 = here->BSIM4IVjdmRev + here->BSIM4DslpRev
* (vbd_jct - here->BSIM4vjdmRev);
here->BSIM4gbd = devbd_dvb * T2 + T1 * here->BSIM4DslpRev + ckt->CKTgmin;
here->BSIM4cbd = T1 * T2 + ckt->CKTgmin * vbd_jct;
}
else if (vbd_jct <= here->BSIM4vjdmFwd)
{ T0 = vbd_jct / Nvtmd;
if (T0 < -EXP_THRESHOLD)
{ evbd = MIN_EXP;
devbd_dvb = 0.0;
}
else
{ evbd = exp(T0);
devbd_dvb = evbd / Nvtmd;
}
T1 = (model->BSIM4bvd + vbd_jct) / Nvtmd;
if (T1 > EXP_THRESHOLD)
{ T2 = MIN_EXP;
T3 = 0.0;
}
else
{ T2 = exp(-T1);
T3 = -T2 /Nvtmd;
}
here->BSIM4gbd = DrainSatCurrent * (devbd_dvb - model->BSIM4xjbvd * T3)
+ ckt->CKTgmin;
here->BSIM4cbd = DrainSatCurrent * (evbd + here->BSIM4XExpBVD - 1.0
- model->BSIM4xjbvd * T2) + ckt->CKTgmin * vbd_jct;
}
else
{ here->BSIM4gbd = here->BSIM4DslpFwd + ckt->CKTgmin;
here->BSIM4cbd = here->BSIM4IVjdmFwd + here->BSIM4DslpFwd * (vbd_jct
- here->BSIM4vjdmFwd) + ckt->CKTgmin * vbd_jct;
}
break;
default: break;
}
}
/* trap-assisted tunneling and recombination current for reverse bias */
Nvtmrssws = model->BSIM4vtm0 * model->BSIM4njtsswstemp;
Nvtmrsswgs = model->BSIM4vtm0 * model->BSIM4njtsswgstemp;
Nvtmrss = model->BSIM4vtm0 * model->BSIM4njtsstemp;
Nvtmrsswd = model->BSIM4vtm0 * model->BSIM4njtsswdtemp;
Nvtmrsswgd = model->BSIM4vtm0 * model->BSIM4njtsswgdtemp;
Nvtmrsd = model->BSIM4vtm0 * model->BSIM4njtsdtemp;
if ((model->BSIM4vtss - vbs_jct) < (model->BSIM4vtss * 1e-3))
{ T9 = 1.0e3;
T0 = - vbs_jct / Nvtmrss * T9;
DEXP(T0, T1, T10);
dT1_dVb = T10 / Nvtmrss * T9;
} else {
T9 = 1.0 / (model->BSIM4vtss - vbs_jct);
T0 = -vbs_jct / Nvtmrss * model->BSIM4vtss * T9;
dT0_dVb = model->BSIM4vtss / Nvtmrss * (T9 + vbs_jct * T9 * T9) ;
DEXP(T0, T1, T10);
dT1_dVb = T10 * dT0_dVb;
}
if ((model->BSIM4vtsd - vbd_jct) < (model->BSIM4vtsd * 1e-3) )
{ T9 = 1.0e3;
T0 = -vbd_jct / Nvtmrsd * T9;
DEXP(T0, T2, T10);
dT2_dVb = T10 / Nvtmrsd * T9;
} else {
T9 = 1.0 / (model->BSIM4vtsd - vbd_jct);
T0 = -vbd_jct / Nvtmrsd * model->BSIM4vtsd * T9;
dT0_dVb = model->BSIM4vtsd / Nvtmrsd * (T9 + vbd_jct * T9 * T9) ;
DEXP(T0, T2, T10);
dT2_dVb = T10 * dT0_dVb;
}
if ((model->BSIM4vtssws - vbs_jct) < (model->BSIM4vtssws * 1e-3) )
{ T9 = 1.0e3;
T0 = -vbs_jct / Nvtmrssws * T9;
DEXP(T0, T3, T10);
dT3_dVb = T10 / Nvtmrssws * T9;
} else {
T9 = 1.0 / (model->BSIM4vtssws - vbs_jct);
T0 = -vbs_jct / Nvtmrssws * model->BSIM4vtssws * T9;
dT0_dVb = model->BSIM4vtssws / Nvtmrssws * (T9 + vbs_jct * T9 * T9) ;
DEXP(T0, T3, T10);
dT3_dVb = T10 * dT0_dVb;
}
if ((model->BSIM4vtsswd - vbd_jct) < (model->BSIM4vtsswd * 1e-3) )
{ T9 = 1.0e3;
T0 = -vbd_jct / Nvtmrsswd * T9;
DEXP(T0, T4, T10);
dT4_dVb = T10 / Nvtmrsswd * T9;
} else {
T9 = 1.0 / (model->BSIM4vtsswd - vbd_jct);
T0 = -vbd_jct / Nvtmrsswd * model->BSIM4vtsswd * T9;
dT0_dVb = model->BSIM4vtsswd / Nvtmrsswd * (T9 + vbd_jct * T9 * T9) ;
DEXP(T0, T4, T10);
dT4_dVb = T10 * dT0_dVb;
}
if ((model->BSIM4vtsswgs - vbs_jct) < (model->BSIM4vtsswgs * 1e-3) )
{ T9 = 1.0e3;
T0 = -vbs_jct / Nvtmrsswgs * T9;
DEXP(T0, T5, T10);
dT5_dVb = T10 / Nvtmrsswgs * T9;
} else {
T9 = 1.0 / (model->BSIM4vtsswgs - vbs_jct);
T0 = -vbs_jct / Nvtmrsswgs * model->BSIM4vtsswgs * T9;
dT0_dVb = model->BSIM4vtsswgs / Nvtmrsswgs * (T9 + vbs_jct * T9 * T9) ;
DEXP(T0, T5, T10);
dT5_dVb = T10 * dT0_dVb;
}
if ((model->BSIM4vtsswgd - vbd_jct) < (model->BSIM4vtsswgd * 1e-3) )
{ T9 = 1.0e3;
T0 = -vbd_jct / Nvtmrsswgd * T9;
DEXP(T0, T6, T10);
dT6_dVb = T10 / Nvtmrsswgd * T9;
} else {
T9 = 1.0 / (model->BSIM4vtsswgd - vbd_jct);
T0 = -vbd_jct / Nvtmrsswgd * model->BSIM4vtsswgd * T9;
dT0_dVb = model->BSIM4vtsswgd / Nvtmrsswgd * (T9 + vbd_jct * T9 * T9) ;
DEXP(T0, T6, T10);
dT6_dVb = T10 * dT0_dVb;
}
here->BSIM4gbs += here->BSIM4SjctTempRevSatCur * dT1_dVb
+ here->BSIM4SswTempRevSatCur * dT3_dVb
+ here->BSIM4SswgTempRevSatCur * dT5_dVb;
here->BSIM4cbs -= here->BSIM4SjctTempRevSatCur * (T1 - 1.0)