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Holger Vogt 2026-02-18 13:54:00 +01:00
parent 8638e2eac2
commit fda17107e1
1 changed files with 7 additions and 4 deletions
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11
src/xspice/icm/xtradev/degmonitor/cfunc.mod
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@ -16,6 +16,7 @@ AUTHORS
MODIFICATIONS
15 Feb 2026 Holger Vogt
SUMMARY
@ -23,7 +24,7 @@ SUMMARY
This file contains the model-specific routines used to
functionally describe a degradation monitor code model.
The model has been provided by IIS/EAS, Dresden, Germany,
extracted for the IHP Open PDK and its MOS devoces modelled by PSP.
extracted for the IHP Open PDK and its MOS devices modelled by PSP.
INTERFACES
@ -361,13 +362,15 @@ void cm_degmon(ARGS) /* structure holding parms,
cm_message_send("Error: Could not retrieve the degradation model info!\n");
cm_cexit(1);
}
/**** model equations 1 ****/
/* constants constfac */
for (ii=0; ii < 3; ii++) {
loc->constfac[ii] = loc->c[ii] * loc->A[ii] * exp(loc->Ea[ii] / k / Temp)
* (loc->L1[ii] + pow((1 / L / 1e6) , loc->L2[ii]));
loc->sintegral[ii] = 0.;
loc->prevtime[ii] = 0.;
}
/***************************/
if (strstr(devmod, "_nmos"))
loc->devtype = 1;
@ -444,7 +447,7 @@ void cm_degmon(ARGS) /* structure holding parms,
}
if (vd - vs > 0 && prevtime < T(0)) {
/**** model equations 1 ****/
/**** model equations 2 ****/
x1 = 1. / (constfac * exp (b / (vd - vs)));
x2 = -1. / n;
sintegrand = pow(x1 , x2);
@ -460,7 +463,7 @@ void cm_degmon(ARGS) /* structure holding parms,
if (T(0) > 0.99999 * tsim) {
/** debugging **/
char *thisinstance = INSTNAME;
/**** model equations 2 ****/
/**** model equations 3 ****/
sintegral = sintegral * tfut / tsim;
deg = 1. / (c * (pow(sintegral, -1.* n)));
/***************************/