mos3sld.c

linux平台下类似著名的电路板作图软件 Spice的源代码

/**********
Copyright 1990 Regents of the University of California.  All rights reserved.
Author: 1985 Thomas L. Quarles
**********/

/* actually load the current sensitivity 
 * information into the  array previously provided 
 */

#include "spice.h"
#include <stdio.h>
#include "smpdefs.h"
#include "cktdefs.h"
#include "mos3defs.h"
#include "util.h"
#include "sperror.h"
#include "suffix.h"

int
MOS3sLoad(inModel,ckt)
GENmodel *inModel;
CKTcircuit *ckt;
{
    register MOS3model *model = (MOS3model *)inModel;
    register MOS3instance *here;
    double   SaveState[44];
    int    save_mode;
    int    i;
    int    iparmno;
    int    error;
    int    flag;
    double A0;
    double DELA;
    double Apert;
    double DELAinv;
    double gspr0;
    double gspr;
    double gdpr0;
    double gdpr;
    double cdpr0;
    double cspr0;
    double cd0;
    double cbd0;
    double cbs0;
    double cd;
    double cbd;
    double cbs;
    double DcdprDp;
    double DcsprDp;
    double DcbDp;
    double DcdDp;
    double DcbsDp;
    double DcbdDp;
    double DcdprmDp;
    double DcsprmDp;
    double qgs0;
    double qgd0;
    double qgb0;
    double qbd0;
    double qbd;
    double qbs0;
    double qbs;
    double DqgsDp;
    double DqgdDp;
    double DqgbDp;
    double DqbdDp;
    double DqbsDp;
    double Osxpgs;
    double Osxpgd;
    double Osxpgb;
    double Osxpbd;
    double Osxpbs;
    double tag0;
    double tag1;
    double arg;
    double sarg;
    double sargsw;
    int offset;
    double EffectiveLength;
    SENstruct *info;

#ifdef SENSDEBUG
    printf("MOS3senload \n");
    printf("CKTtime = %.5e\n",ckt->CKTtime);
    printf("CKTorder = %d\n",ckt->CKTorder);
#endif /* SENSDEBUG */

    info = ckt->CKTsenInfo;
    info->SENstatus = PERTURBATION;

    tag0 = ckt->CKTag[0]; 
    tag1 = ckt->CKTag[1];
    if(ckt->CKTorder == 1){
        tag1 = 0;
    }

    /*  loop through all the models */
    for( ; model != NULL; model = model->MOS3nextModel ) {

        /* loop through all the instances of the model */
        for (here = model->MOS3instances; here != NULL ;
                here=here->MOS3nextInstance) {


#ifdef SENSDEBUG
            printf("senload instance name %s\n",here->MOS3name);
            printf("gate = %d ,drain = %d, drainprm = %d\n",
                    here->MOS3gNode,here->MOS3dNode,here->MOS3dNodePrime);
            printf("source = %d , sourceprm = %d ,body = %d, senparmno = %d\n",
                    here->MOS3sNode ,here->MOS3sNodePrime,
                    here->MOS3bNode,here->MOS3senParmNo);
#endif /* SENSDEBUG */


            /* save the unperturbed values in the state vector */
            for(i=0; i <= 16; i++){
                *(SaveState + i) = *(ckt->CKTstate0 + here->MOS3states + i);
            }

            *(SaveState + 17) = here->MOS3sourceConductance;  
            *(SaveState + 18) = here->MOS3drainConductance;  
            *(SaveState + 19) = here->MOS3cd;  
            *(SaveState + 20) = here->MOS3cbs;  
            *(SaveState + 21) = here->MOS3cbd;  
            *(SaveState + 22) = here->MOS3gmbs;  
            *(SaveState + 23) = here->MOS3gm;  
            *(SaveState + 24) = here->MOS3gds;  
            *(SaveState + 25) = here->MOS3gbd;  
            *(SaveState + 26) = here->MOS3gbs;  
            *(SaveState + 27) = here->MOS3capbd;  
            *(SaveState + 28) = here->MOS3capbs;  
            *(SaveState + 29) = here->MOS3Cbd;  
            *(SaveState + 30) = here->MOS3Cbdsw;  
            *(SaveState + 31) = here->MOS3Cbs;  
            *(SaveState + 32) = here->MOS3Cbssw;  
            *(SaveState + 33) = here->MOS3f2d;  
            *(SaveState + 34) = here->MOS3f3d;  
            *(SaveState + 35) = here->MOS3f4d;  
            *(SaveState + 36) = here->MOS3f2s;  
            *(SaveState + 37) = here->MOS3f3s;  
            *(SaveState + 38) = here->MOS3f4s;  
            *(SaveState + 39) = here->MOS3cgs;  
            *(SaveState + 40) = here->MOS3cgd;  
            *(SaveState + 41) = here->MOS3cgb;  
            *(SaveState + 42) = here->MOS3vdsat;  
            *(SaveState + 43) = here->MOS3von;  
            save_mode = here->MOS3mode;  


            if(here->MOS3senParmNo == 0) goto next1;

#ifdef SENSDEBUG
            printf("without perturbation \n");
#endif /* SENSDEBUG */

            cdpr0= here->MOS3cd;
            cspr0= -(here->MOS3cd + here->MOS3cbd + here->MOS3cbs);
            if((info->SENmode == TRANSEN) &&
                (ckt->CKTmode & MODEINITTRAN)){
                qgs0 = *(ckt->CKTstate1 + here->MOS3qgs);
                qgd0 = *(ckt->CKTstate1 + here->MOS3qgd);
                qgb0 = *(ckt->CKTstate1 + here->MOS3qgb);
            }
            else{
                qgs0 = *(ckt->CKTstate0 + here->MOS3qgs);
                qgd0 = *(ckt->CKTstate0 + here->MOS3qgd);
                qgb0 = *(ckt->CKTstate0 + here->MOS3qgb);
            }

            here->MOS3senPertFlag = ON;
            error =  MOS3load((GENmodel*)model,ckt);
            if(error) return(error);

            cd0 =  here->MOS3cd ;
            cbd0 = here->MOS3cbd ;
            cbs0 = here->MOS3cbs ;
            gspr0= here->MOS3sourceConductance ;
            gdpr0= here->MOS3drainConductance ;

            qbs0 = *(ckt->CKTstate0 + here->MOS3qbs);
            qbd0 = *(ckt->CKTstate0 + here->MOS3qbd);

            for( flag = 0 ; flag <= 1 ; flag++){
                if(here->MOS3sens_l == 0)
                    if(flag == 0) goto next2;
                if(here->MOS3sens_w == 0)
                    if(flag == 1) goto next2;
                if(flag == 0){
                    A0 = here->MOS3l;
                    DELA = info->SENpertfac * A0;
                    DELAinv = 1.0/DELA;
                    Apert = A0 + DELA;
                    here->MOS3l = Apert;
                }
                else{
                    A0 = here->MOS3w;
                    DELA = info->SENpertfac * A0;
                    DELAinv = 1.0/DELA;
                    Apert = A0 + DELA;
                    here->MOS3w = Apert;
                    here->MOS3drainArea *= (1 + info->SENpertfac);
                    here->MOS3sourceArea *= (1 + info->SENpertfac);
                    here->MOS3Cbd *= (1 + info->SENpertfac);
                    here->MOS3Cbs *= (1 + info->SENpertfac);
                    if(here->MOS3drainPerimiter){
                        here->MOS3Cbdsw += here->MOS3Cbdsw *
                            DELA/here->MOS3drainPerimiter;
                    }
                    if(here->MOS3sourcePerimiter){
                        here->MOS3Cbssw += here->MOS3Cbssw *
                            DELA/here->MOS3sourcePerimiter;
                    }
                    if(*(ckt->CKTstate0 + here->MOS3vbd) >=
                        here->MOS3tDepCap){
                        arg = 1-model->MOS3fwdCapDepCoeff;
                        sarg = exp( (-model->MOS3bulkJctBotGradingCoeff) * 
                                log(arg) );
                        sargsw = exp( (-model->MOS3bulkJctSideGradingCoeff) * 
                                log(arg) );
                        here->MOS3f2d = here->MOS3Cbd*
                                (1-model->MOS3fwdCapDepCoeff*
                                (1+model->MOS3bulkJctBotGradingCoeff))* sarg/arg
                                +  here->MOS3Cbdsw*(1-model->MOS3fwdCapDepCoeff*
                                (1+model->MOS3bulkJctSideGradingCoeff))*
                                sargsw/arg;
                        here->MOS3f3d = here->MOS3Cbd * 
                                model->MOS3bulkJctBotGradingCoeff * sarg/arg/
                                model->MOS3bulkJctPotential
                                + here->MOS3Cbdsw * 
                                model->MOS3bulkJctSideGradingCoeff *sargsw/arg /
                                model->MOS3bulkJctPotential;
                        here->MOS3f4d = here->MOS3Cbd*
                                model->MOS3bulkJctPotential*(1-arg*sarg)/
                                (1-model->MOS3bulkJctBotGradingCoeff)
                                + here->MOS3Cbdsw*model->MOS3bulkJctPotential*
                                (1-arg*sargsw)/
                                (1-model->MOS3bulkJctSideGradingCoeff)
                                -here->MOS3f3d/2*
                                (here->MOS3tDepCap*here->MOS3tDepCap)
                                -here->MOS3tDepCap * here->MOS3f2d;
                    }
                    if(*(ckt->CKTstate0 + here->MOS3vbs) >=
                        here->MOS3tDepCap){
                        arg = 1-model->MOS3fwdCapDepCoeff;
                        sarg = exp( (-model->MOS3bulkJctBotGradingCoeff) * 
                                log(arg) );
                        sargsw = exp( (-model->MOS3bulkJctSideGradingCoeff) * 
                                log(arg) );
                        here->MOS3f2s = here->MOS3Cbs*
                                (1-model->MOS3fwdCapDepCoeff*
                                (1+model->MOS3bulkJctBotGradingCoeff))* sarg/arg
                                +  here->MOS3Cbssw*(1-model->MOS3fwdCapDepCoeff*
                                (1+model->MOS3bulkJctSideGradingCoeff))*
                                sargsw/arg;
                        here->MOS3f3s = here->MOS3Cbs * 
                                model->MOS3bulkJctBotGradingCoeff * sarg/arg/
                                model->MOS3bulkJctPotential
                                + here->MOS3Cbssw * 
                                model->MOS3bulkJctSideGradingCoeff * sargsw/arg/
                                model->MOS3bulkJctPotential;
                        here->MOS3f4s = here->MOS3Cbs*
                                model->MOS3bulkJctPotential*(1-arg*sarg)/
                                (1-model->MOS3bulkJctBotGradingCoeff)
                                + here->MOS3Cbssw*model->MOS3bulkJctPotential*
                                (1-arg*sargsw)/
                                (1-model->MOS3bulkJctSideGradingCoeff)
                                -here->MOS3f3s/2*
                                (here->MOS3tBulkPot*here->MOS3tBulkPot)
                                -here->MOS3tBulkPot * here->MOS3f2s;
                    }
                    here->MOS3drainConductance *= Apert/A0;
                    here->MOS3sourceConductance *= Apert/A0;
                }


#ifdef SENSDEBUG
                if(flag == 0)
                    printf("perturbation of l\n");
                if(flag == 1)
                    printf("perturbation of w\n");
#endif /* SENSDEBUG */

                error =  MOS3load((GENmodel*)model,ckt);
                if(error) return(error);

                if(flag == 0){
                    here->MOS3l = A0;
                }
                else{
                    here->MOS3w = A0;
                    here->MOS3drainArea /= (1 + info->SENpertfac);
                    here->MOS3sourceArea /= (1 + info->SENpertfac);
                    here->MOS3drainConductance *= A0/Apert;
                    here->MOS3sourceConductance *= A0/Apert;
                }
                cd =  here->MOS3cd ;
                cbd = here->MOS3cbd ;
                cbs = here->MOS3cbs ;

                gspr= here->MOS3sourceConductance ;
                gdpr= here->MOS3drainConductance ;

                DcdDp = (cd - cd0) * DELAinv;
                DcbsDp = (cbs - cbs0) * DELAinv;
                DcbdDp = (cbd - cbd0) * DELAinv;
                DcbDp = ( DcbsDp + DcbdDp );

                DcdprDp = 0;
                DcsprDp = 0;
                if(here->MOS3dNode != here->MOS3dNodePrime)
                    if(gdpr0) DcdprDp = cdpr0 * (gdpr - gdpr0)/gdpr0 * DELAinv;
                if(here->MOS3sNode != here->MOS3sNodePrime)