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362 lines
13 KiB
362 lines
13 KiB
/**********
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Copyright 1990 Regents of the University of California. All rights reserved.
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Author: Min-Chie Jeng.
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File: b3v1check.c
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**********/
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#include "ngspice.h"
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#include <stdio.h>
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#include <math.h>
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#include "cktdefs.h"
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#include "bsim3v1def.h"
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#include "trandefs.h"
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#include "const.h"
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#include "sperror.h"
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#include "devdefs.h"
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#include "suffix.h"
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int
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BSIM3V1checkModel(model, here, ckt)
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register BSIM3V1model *model;
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register BSIM3V1instance *here;
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CKTcircuit *ckt;
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{
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struct bsim3v1SizeDependParam *pParam;
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int Fatal_Flag = 0;
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FILE *fplog;
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if ((fplog = fopen("BSIM3V3_1_check.log", "w")) != NULL)
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{ pParam = here->pParam;
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fprintf(fplog, "BSIM3V3.1 Parameter Check\n");
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fprintf(fplog, "Model = %s\n", model->BSIM3V1modName);
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fprintf(fplog, "W = %g, L = %g\n", here->BSIM3V1w, here->BSIM3V1l);
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if (pParam->BSIM3V1nlx < -pParam->BSIM3V1leff)
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{ fprintf(fplog, "Fatal: Nlx = %g is less than -Leff.\n",
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pParam->BSIM3V1nlx);
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printf("Fatal: Nlx = %g is less than -Leff.\n",
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pParam->BSIM3V1nlx);
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Fatal_Flag = 1;
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}
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if (model->BSIM3V1tox <= 0.0)
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{ fprintf(fplog, "Fatal: Tox = %g is not positive.\n",
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model->BSIM3V1tox);
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printf("Fatal: Tox = %g is not positive.\n", model->BSIM3V1tox);
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Fatal_Flag = 1;
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}
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if (pParam->BSIM3V1npeak <= 0.0)
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{ fprintf(fplog, "Fatal: Nch = %g is not positive.\n",
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pParam->BSIM3V1npeak);
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printf("Fatal: Nch = %g is not positive.\n",
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pParam->BSIM3V1npeak);
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Fatal_Flag = 1;
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}
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if (pParam->BSIM3V1nsub <= 0.0)
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{ fprintf(fplog, "Fatal: Nsub = %g is not positive.\n",
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pParam->BSIM3V1nsub);
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printf("Fatal: Nsub = %g is not positive.\n",
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pParam->BSIM3V1nsub);
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Fatal_Flag = 1;
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}
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if (pParam->BSIM3V1ngate < 0.0)
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{ fprintf(fplog, "Fatal: Ngate = %g is not positive.\n",
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pParam->BSIM3V1ngate);
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printf("Fatal: Ngate = %g Ngate is not positive.\n",
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pParam->BSIM3V1ngate);
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Fatal_Flag = 1;
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}
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if (pParam->BSIM3V1ngate > 1.e25)
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{ fprintf(fplog, "Fatal: Ngate = %g is too high.\n",
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pParam->BSIM3V1ngate);
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printf("Fatal: Ngate = %g Ngate is too high\n",
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pParam->BSIM3V1ngate);
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Fatal_Flag = 1;
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}
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if (pParam->BSIM3V1xj <= 0.0)
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{ fprintf(fplog, "Fatal: Xj = %g is not positive.\n",
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pParam->BSIM3V1xj);
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printf("Fatal: Xj = %g is not positive.\n", pParam->BSIM3V1xj);
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Fatal_Flag = 1;
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}
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if (pParam->BSIM3V1dvt1 < 0.0)
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{ fprintf(fplog, "Fatal: Dvt1 = %g is negative.\n",
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pParam->BSIM3V1dvt1);
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printf("Fatal: Dvt1 = %g is negative.\n", pParam->BSIM3V1dvt1);
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Fatal_Flag = 1;
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}
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if (pParam->BSIM3V1dvt1w < 0.0)
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{ fprintf(fplog, "Fatal: Dvt1w = %g is negative.\n",
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pParam->BSIM3V1dvt1w);
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printf("Fatal: Dvt1w = %g is negative.\n", pParam->BSIM3V1dvt1w);
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Fatal_Flag = 1;
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}
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if (pParam->BSIM3V1w0 == -pParam->BSIM3V1weff)
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{ fprintf(fplog, "Fatal: (W0 + Weff) = 0 cauing divided-by-zero.\n");
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printf("Fatal: (W0 + Weff) = 0 cauing divided-by-zero.\n");
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Fatal_Flag = 1;
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}
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if (pParam->BSIM3V1dsub < 0.0)
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{ fprintf(fplog, "Fatal: Dsub = %g is negative.\n", pParam->BSIM3V1dsub);
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printf("Fatal: Dsub = %g is negative.\n", pParam->BSIM3V1dsub);
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Fatal_Flag = 1;
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}
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if (pParam->BSIM3V1b1 == -pParam->BSIM3V1weff)
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{ fprintf(fplog, "Fatal: (B1 + Weff) = 0 causing divided-by-zero.\n");
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printf("Fatal: (B1 + Weff) = 0 causing divided-by-zero.\n");
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Fatal_Flag = 1;
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}
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if (pParam->BSIM3V1u0temp <= 0.0)
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{ fprintf(fplog, "Fatal: u0 at current temperature = %g is not positive.\n", pParam->BSIM3V1u0temp);
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printf("Fatal: u0 at current temperature = %g is not positive.\n",
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pParam->BSIM3V1u0temp);
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Fatal_Flag = 1;
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}
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/* Check delta parameter */
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if (pParam->BSIM3V1delta < 0.0)
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{ fprintf(fplog, "Fatal: Delta = %g is less than zero.\n",
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pParam->BSIM3V1delta);
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printf("Fatal: Delta = %g is less than zero.\n", pParam->BSIM3V1delta);
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Fatal_Flag = 1;
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}
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if (pParam->BSIM3V1vsattemp <= 0.0)
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{ fprintf(fplog, "Fatal: Vsat at current temperature = %g is not positive.\n", pParam->BSIM3V1vsattemp);
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printf("Fatal: Vsat at current temperature = %g is not positive.\n",
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pParam->BSIM3V1vsattemp);
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Fatal_Flag = 1;
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}
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/* Check Rout parameters */
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if (pParam->BSIM3V1pclm <= 0.0)
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{ fprintf(fplog, "Fatal: Pclm = %g is not positive.\n", pParam->BSIM3V1pclm);
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printf("Fatal: Pclm = %g is not positive.\n", pParam->BSIM3V1pclm);
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Fatal_Flag = 1;
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}
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if (pParam->BSIM3V1drout < 0.0)
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{ fprintf(fplog, "Fatal: Drout = %g is negative.\n", pParam->BSIM3V1drout);
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printf("Fatal: Drout = %g is negative.\n", pParam->BSIM3V1drout);
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Fatal_Flag = 1;
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}
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if (model->BSIM3V1unitLengthSidewallJctCap > 0.0 ||
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model->BSIM3V1unitLengthGateSidewallJctCap > 0.0)
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{
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if (here->BSIM3V1drainPerimeter < pParam->BSIM3V1weff)
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{ fprintf(fplog, "Warning: Pd = %g is less than W.\n",
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here->BSIM3V1drainPerimeter);
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printf("Warning: Pd = %g is less than W.\n",
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here->BSIM3V1drainPerimeter);
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here->BSIM3V1drainPerimeter =pParam->BSIM3V1weff;
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}
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if (here->BSIM3V1sourcePerimeter < pParam->BSIM3V1weff)
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{ fprintf(fplog, "Warning: Ps = %g is less than W.\n",
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here->BSIM3V1sourcePerimeter);
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printf("Warning: Ps = %g is less than W.\n",
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here->BSIM3V1sourcePerimeter);
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here->BSIM3V1sourcePerimeter =pParam->BSIM3V1weff;
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}
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}
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/* Check capacitance parameters */
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if (pParam->BSIM3V1clc < 0.0)
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{ fprintf(fplog, "Fatal: Clc = %g is negative.\n", pParam->BSIM3V1clc);
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printf("Fatal: Clc = %g is negative.\n", pParam->BSIM3V1clc);
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Fatal_Flag = 1;
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}
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if (model->BSIM3V1paramChk ==1)
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{
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/* Check L and W parameters */
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if (pParam->BSIM3V1leff <= 5.0e-8)
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{ fprintf(fplog, "Warning: Leff = %g may be too small.\n",
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pParam->BSIM3V1leff);
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printf("Warning: Leff = %g may be too small.\n",
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pParam->BSIM3V1leff);
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}
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if (pParam->BSIM3V1leffCV <= 5.0e-8)
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{ fprintf(fplog, "Warning: Leff for CV = %g may be too small.\n",
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pParam->BSIM3V1leffCV);
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printf("Warning: Leff for CV = %g may be too small.\n",
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pParam->BSIM3V1leffCV);
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}
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if (pParam->BSIM3V1weff <= 1.0e-7)
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{ fprintf(fplog, "Warning: Weff = %g may be too small.\n",
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pParam->BSIM3V1weff);
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printf("Warning: Weff = %g may be too small.\n",
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pParam->BSIM3V1weff);
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}
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if (pParam->BSIM3V1weffCV <= 1.0e-7)
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{ fprintf(fplog, "Warning: Weff for CV = %g may be too small.\n",
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pParam->BSIM3V1weffCV);
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printf("Warning: Weff for CV = %g may be too small.\n",
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pParam->BSIM3V1weffCV);
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}
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/* Check threshold voltage parameters */
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if (pParam->BSIM3V1nlx < 0.0)
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{ fprintf(fplog, "Warning: Nlx = %g is negative.\n", pParam->BSIM3V1nlx);
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printf("Warning: Nlx = %g is negative.\n", pParam->BSIM3V1nlx);
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}
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if (model->BSIM3V1tox < 1.0e-9)
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{ fprintf(fplog, "Warning: Tox = %g is less than 10A.\n",
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model->BSIM3V1tox);
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printf("Warning: Tox = %g is less than 10A.\n", model->BSIM3V1tox);
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}
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if (pParam->BSIM3V1npeak <= 1.0e15)
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{ fprintf(fplog, "Warning: Nch = %g may be too small.\n",
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pParam->BSIM3V1npeak);
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printf("Warning: Nch = %g may be too small.\n",
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pParam->BSIM3V1npeak);
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}
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else if (pParam->BSIM3V1npeak >= 1.0e21)
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{ fprintf(fplog, "Warning: Nch = %g may be too large.\n",
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pParam->BSIM3V1npeak);
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printf("Warning: Nch = %g may be too large.\n",
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pParam->BSIM3V1npeak);
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}
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if (pParam->BSIM3V1nsub <= 1.0e14)
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{ fprintf(fplog, "Warning: Nsub = %g may be too small.\n",
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pParam->BSIM3V1nsub);
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printf("Warning: Nsub = %g may be too small.\n",
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pParam->BSIM3V1nsub);
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}
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else if (pParam->BSIM3V1nsub >= 1.0e21)
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{ fprintf(fplog, "Warning: Nsub = %g may be too large.\n",
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pParam->BSIM3V1nsub);
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printf("Warning: Nsub = %g may be too large.\n",
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pParam->BSIM3V1nsub);
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}
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if ((pParam->BSIM3V1ngate > 0.0) &&
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(pParam->BSIM3V1ngate <= 1.e18))
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{ fprintf(fplog, "Warning: Ngate = %g is less than 1.E18cm^-3.\n",
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pParam->BSIM3V1ngate);
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printf("Warning: Ngate = %g is less than 1.E18cm^-3.\n",
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pParam->BSIM3V1ngate);
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}
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if (pParam->BSIM3V1dvt0 < 0.0)
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{ fprintf(fplog, "Warning: Dvt0 = %g is negative.\n",
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pParam->BSIM3V1dvt0);
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printf("Warning: Dvt0 = %g is negative.\n", pParam->BSIM3V1dvt0);
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}
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if (fabs(1.0e-6 / (pParam->BSIM3V1w0 + pParam->BSIM3V1weff)) > 10.0)
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{ fprintf(fplog, "Warning: (W0 + Weff) may be too small.\n");
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printf("Warning: (W0 + Weff) may be too small.\n");
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}
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/* Check subthreshold parameters */
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if (pParam->BSIM3V1nfactor < 0.0)
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{ fprintf(fplog, "Warning: Nfactor = %g is negative.\n",
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pParam->BSIM3V1nfactor);
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printf("Warning: Nfactor = %g is negative.\n", pParam->BSIM3V1nfactor);
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}
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if (pParam->BSIM3V1cdsc < 0.0)
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{ fprintf(fplog, "Warning: Cdsc = %g is negative.\n",
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pParam->BSIM3V1cdsc);
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printf("Warning: Cdsc = %g is negative.\n", pParam->BSIM3V1cdsc);
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}
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if (pParam->BSIM3V1cdscd < 0.0)
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{ fprintf(fplog, "Warning: Cdscd = %g is negative.\n",
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pParam->BSIM3V1cdscd);
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printf("Warning: Cdscd = %g is negative.\n", pParam->BSIM3V1cdscd);
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}
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/* Check DIBL parameters */
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if (pParam->BSIM3V1eta0 < 0.0)
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{ fprintf(fplog, "Warning: Eta0 = %g is negative.\n",
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pParam->BSIM3V1eta0);
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printf("Warning: Eta0 = %g is negative.\n", pParam->BSIM3V1eta0);
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}
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/* Check Abulk parameters */
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if (fabs(1.0e-6 / (pParam->BSIM3V1b1 + pParam->BSIM3V1weff)) > 10.0)
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{ fprintf(fplog, "Warning: (B1 + Weff) may be too small.\n");
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printf("Warning: (B1 + Weff) may be too small.\n");
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}
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/* Check Saturation parameters */
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if (pParam->BSIM3V1a2 < 0.01)
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{ fprintf(fplog, "Warning: A2 = %g is too small. Set to 0.01.\n", pParam->BSIM3V1a2);
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printf("Warning: A2 = %g is too small. Set to 0.01.\n",
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pParam->BSIM3V1a2);
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pParam->BSIM3V1a2 = 0.01;
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}
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else if (pParam->BSIM3V1a2 > 1.0)
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{ fprintf(fplog, "Warning: A2 = %g is larger than 1. A2 is set to 1 and A1 is set to 0.\n",
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pParam->BSIM3V1a2);
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printf("Warning: A2 = %g is larger than 1. A2 is set to 1 and A1 is set to 0.\n",
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pParam->BSIM3V1a2);
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pParam->BSIM3V1a2 = 1.0;
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pParam->BSIM3V1a1 = 0.0;
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}
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if (pParam->BSIM3V1rdsw < 0.0)
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{ fprintf(fplog, "Warning: Rdsw = %g is negative. Set to zero.\n",
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pParam->BSIM3V1rdsw);
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printf("Warning: Rdsw = %g is negative. Set to zero.\n",
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pParam->BSIM3V1rdsw);
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pParam->BSIM3V1rdsw = 0.0;
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pParam->BSIM3V1rds0 = 0.0;
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}
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else if ((pParam->BSIM3V1rds0 > 0.0) && (pParam->BSIM3V1rds0 < 0.001))
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{ fprintf(fplog, "Warning: Rds at current temperature = %g is less than 0.001 ohm. Set to zero.\n",
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pParam->BSIM3V1rds0);
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printf("Warning: Rds at current temperature = %g is less than 0.001 ohm. Set to zero.\n",
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pParam->BSIM3V1rds0);
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pParam->BSIM3V1rds0 = 0.0;
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}
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if (pParam->BSIM3V1vsattemp < 1.0e3)
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{ fprintf(fplog, "Warning: Vsat at current temperature = %g may be too small.\n", pParam->BSIM3V1vsattemp);
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printf("Warning: Vsat at current temperature = %g may be too small.\n", pParam->BSIM3V1vsattemp);
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}
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if (pParam->BSIM3V1pdibl1 < 0.0)
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{ fprintf(fplog, "Warning: Pdibl1 = %g is negative.\n",
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pParam->BSIM3V1pdibl1);
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printf("Warning: Pdibl1 = %g is negative.\n", pParam->BSIM3V1pdibl1);
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}
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if (pParam->BSIM3V1pdibl2 < 0.0)
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{ fprintf(fplog, "Warning: Pdibl2 = %g is negative.\n",
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pParam->BSIM3V1pdibl2);
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printf("Warning: Pdibl2 = %g is negative.\n", pParam->BSIM3V1pdibl2);
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}
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/* Check overlap capacitance parameters */
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if (model->BSIM3V1cgdo < 0.0)
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{ fprintf(fplog, "Warning: cgdo = %g is negative. Set to zero.\n", model->BSIM3V1cgdo);
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printf("Warning: cgdo = %g is negative. Set to zero.\n", model->BSIM3V1cgdo);
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model->BSIM3V1cgdo = 0.0;
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}
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if (model->BSIM3V1cgso < 0.0)
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{ fprintf(fplog, "Warning: cgso = %g is negative. Set to zero.\n", model->BSIM3V1cgso);
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printf("Warning: cgso = %g is negative. Set to zero.\n", model->BSIM3V1cgso);
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model->BSIM3V1cgso = 0.0;
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}
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if (model->BSIM3V1cgbo < 0.0)
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{ fprintf(fplog, "Warning: cgbo = %g is negative. Set to zero.\n", model->BSIM3V1cgbo);
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printf("Warning: cgbo = %g is negative. Set to zero.\n", model->BSIM3V1cgbo);
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model->BSIM3V1cgbo = 0.0;
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}
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}/* loop for the parameter check for warning messages */
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fclose(fplog);
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}
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else
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{ fprintf(stderr, "Warning: Can't open log file. Parameter checking skipped.\n");
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}
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return(Fatal_Flag);
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}
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