diff --git a/src/spicelib/devices/bsim4v5/Makefile.am b/src/spicelib/devices/bsim4v5/Makefile.am
index a7ab65505..4438ce323 100644
--- a/src/spicelib/devices/bsim4v5/Makefile.am
+++ b/src/spicelib/devices/bsim4v5/Makefile.am
@@ -20,6 +20,7 @@ libbsim4v5_la_SOURCES = \
b4v5par.c \
b4v5pzld.c \
b4v5set.c \
+ b4v5soachk.c \
b4v5temp.c \
b4v5trunc.c \
bsim4v5def.h \
diff --git a/src/spicelib/devices/bsim4v5/b4v5.c b/src/spicelib/devices/bsim4v5/b4v5.c
index 2f6ecea14..983f8fe2b 100644
--- a/src/spicelib/devices/bsim4v5/b4v5.c
+++ b/src/spicelib/devices/bsim4v5/b4v5.c
@@ -890,6 +890,13 @@ IOP( "ef", BSIM4v5_MOD_EF, IF_REAL, "Flicker noise frequency exponent"),
IOP( "af", BSIM4v5_MOD_AF, IF_REAL, "Flicker noise exponent"),
IOP( "kf", BSIM4v5_MOD_KF, IF_REAL, "Flicker noise coefficient"),
+IOP("vgs_max", BSIM4v5_MOD_VGS_MAX, IF_REAL, "maximum voltage G-S branch"),
+IOP("vgd_max", BSIM4v5_MOD_VGD_MAX, IF_REAL, "maximum voltage G-D branch"),
+IOP("vgb_max", BSIM4v5_MOD_VGB_MAX, IF_REAL, "maximum voltage G-B branch"),
+IOP("vds_max", BSIM4v5_MOD_VDS_MAX, IF_REAL, "maximum voltage D-S branch"),
+IOP("vbs_max", BSIM4v5_MOD_VBS_MAX, IF_REAL, "maximum voltage B-S branch"),
+IOP("vbd_max", BSIM4v5_MOD_VBD_MAX, IF_REAL, "maximum voltage B-D branch"),
+
IP( "nmos", BSIM4v5_MOD_NMOS, IF_FLAG, "Flag to indicate NMOS"),
IP( "pmos", BSIM4v5_MOD_PMOS, IF_FLAG, "Flag to indicate PMOS"),
};
diff --git a/src/spicelib/devices/bsim4v5/b4v5mask.c b/src/spicelib/devices/bsim4v5/b4v5mask.c
index 909f2fa14..8fc0273ec 100644
--- a/src/spicelib/devices/bsim4v5/b4v5mask.c
+++ b/src/spicelib/devices/bsim4v5/b4v5mask.c
@@ -2253,6 +2253,26 @@ IFvalue *value)
case BSIM4v5_MOD_KF:
value->rValue = model->BSIM4v5kf;
return(OK);
+
+ case BSIM4v5_MOD_VGS_MAX:
+ value->rValue = model->BSIM4v5vgsMax;
+ return(OK);
+ case BSIM4v5_MOD_VGD_MAX:
+ value->rValue = model->BSIM4v5vgdMax;
+ return(OK);
+ case BSIM4v5_MOD_VGB_MAX:
+ value->rValue = model->BSIM4v5vgbMax;
+ return(OK);
+ case BSIM4v5_MOD_VDS_MAX:
+ value->rValue = model->BSIM4v5vdsMax;
+ return(OK);
+ case BSIM4v5_MOD_VBS_MAX:
+ value->rValue = model->BSIM4v5vbsMax;
+ return(OK);
+ case BSIM4v5_MOD_VBD_MAX:
+ value->rValue = model->BSIM4v5vbdMax;
+ return(OK);
+
default:
return(E_BADPARM);
}
diff --git a/src/spicelib/devices/bsim4v5/b4v5mpar.c b/src/spicelib/devices/bsim4v5/b4v5mpar.c
index 7b138f18d..eb31e0f94 100644
--- a/src/spicelib/devices/bsim4v5/b4v5mpar.c
+++ b/src/spicelib/devices/bsim4v5/b4v5mpar.c
@@ -3060,6 +3060,32 @@ GENmodel *inMod)
mod->BSIM4v5kf = value->rValue;
mod->BSIM4v5kfGiven = TRUE;
break;
+
+ case BSIM4v5_MOD_VGS_MAX:
+ mod->BSIM4v5vgsMax = value->rValue;
+ mod->BSIM4v5vgsMaxGiven = TRUE;
+ break;
+ case BSIM4v5_MOD_VGD_MAX:
+ mod->BSIM4v5vgdMax = value->rValue;
+ mod->BSIM4v5vgdMaxGiven = TRUE;
+ break;
+ case BSIM4v5_MOD_VGB_MAX:
+ mod->BSIM4v5vgbMax = value->rValue;
+ mod->BSIM4v5vgbMaxGiven = TRUE;
+ break;
+ case BSIM4v5_MOD_VDS_MAX:
+ mod->BSIM4v5vdsMax = value->rValue;
+ mod->BSIM4v5vdsMaxGiven = TRUE;
+ break;
+ case BSIM4v5_MOD_VBS_MAX:
+ mod->BSIM4v5vbsMax = value->rValue;
+ mod->BSIM4v5vbsMaxGiven = TRUE;
+ break;
+ case BSIM4v5_MOD_VBD_MAX:
+ mod->BSIM4v5vbdMax = value->rValue;
+ mod->BSIM4v5vbdMaxGiven = TRUE;
+ break;
+
case BSIM4v5_MOD_NMOS :
if(value->iValue) {
mod->BSIM4v5type = 1;
diff --git a/src/spicelib/devices/bsim4v5/b4v5set.c b/src/spicelib/devices/bsim4v5/b4v5set.c
index 667a86c7c..bb3df430e 100644
--- a/src/spicelib/devices/bsim4v5/b4v5set.c
+++ b/src/spicelib/devices/bsim4v5/b4v5set.c
@@ -1567,6 +1567,19 @@ JOB *job;
if (!model->BSIM4v5kfGiven)
model->BSIM4v5kf = 0.0;
+ if (!model->BSIM4v5vgsMaxGiven)
+ model->BSIM4v5vgsMax = 1e99;
+ if (!model->BSIM4v5vgdMaxGiven)
+ model->BSIM4v5vgdMax = 1e99;
+ if (!model->BSIM4v5vgbMaxGiven)
+ model->BSIM4v5vgbMax = 1e99;
+ if (!model->BSIM4v5vdsMaxGiven)
+ model->BSIM4v5vdsMax = 1e99;
+ if (!model->BSIM4v5vbsMaxGiven)
+ model->BSIM4v5vbsMax = 1e99;
+ if (!model->BSIM4v5vbdMaxGiven)
+ model->BSIM4v5vbdMax = 1e99;
+
/* stress effect */
if (!model->BSIM4v5sarefGiven)
model->BSIM4v5saref = 1e-6; /* m */
diff --git a/src/spicelib/devices/bsim4v5/b4v5soachk.c b/src/spicelib/devices/bsim4v5/b4v5soachk.c
new file mode 100644
index 000000000..0fdda87fd
--- /dev/null
+++ b/src/spicelib/devices/bsim4v5/b4v5soachk.c
@@ -0,0 +1,110 @@
+/**********
+Copyright 2013 Dietmar Warning. All rights reserved.
+Author: 2013 Dietmar Warning
+**********/
+
+#include "ngspice/ngspice.h"
+#include "ngspice/cktdefs.h"
+#include "bsim4v5def.h"
+#include "ngspice/trandefs.h"
+#include "ngspice/sperror.h"
+#include "ngspice/suffix.h"
+#include "ngspice/cpdefs.h"
+
+
+int
+BSIM4v5soaCheck(CKTcircuit *ckt, GENmodel *inModel)
+{
+ BSIM4v5model *model = (BSIM4v5model *) inModel;
+ BSIM4v5instance *here;
+ double vgs, vgd, vgb, vds, vbs, vbd; /* actual mos voltages */
+ int maxwarns;
+ static int warns_vgs = 0, warns_vgd = 0, warns_vgb = 0, warns_vds = 0, warns_vbs = 0, warns_vbd = 0;
+
+ if (!ckt) {
+ warns_vgs = 0;
+ warns_vgd = 0;
+ warns_vgb = 0;
+ warns_vds = 0;
+ warns_vbs = 0;
+ warns_vbd = 0;
+ return OK;
+ }
+
+ maxwarns = ckt->CKTsoaMaxWarns;
+
+ for (; model; model = model->BSIM4v5nextModel) {
+
+ for (here = model->BSIM4v5instances; here; here = here->BSIM4v5nextInstance) {
+
+ vgs = fabs(ckt->CKTrhsOld [here->BSIM4v5gNodePrime] -
+ ckt->CKTrhsOld [here->BSIM4v5sNodePrime]);
+
+ vgd = fabs(ckt->CKTrhsOld [here->BSIM4v5gNodePrime] -
+ ckt->CKTrhsOld [here->BSIM4v5dNodePrime]);
+
+ vgb = fabs(ckt->CKTrhsOld [here->BSIM4v5gNodePrime] -
+ ckt->CKTrhsOld [here->BSIM4v5bNodePrime]);
+
+ vds = fabs(ckt->CKTrhsOld [here->BSIM4v5dNodePrime] -
+ ckt->CKTrhsOld [here->BSIM4v5sNodePrime]);
+
+ vbs = fabs(ckt->CKTrhsOld [here->BSIM4v5bNodePrime] -
+ ckt->CKTrhsOld [here->BSIM4v5sNodePrime]);
+
+ vbd = fabs(ckt->CKTrhsOld [here->BSIM4v5bNodePrime] -
+ ckt->CKTrhsOld [here->BSIM4v5dNodePrime]);
+
+ if (vgs > model->BSIM4v5vgsMax)
+ if (warns_vgs < maxwarns) {
+ soa_printf(ckt, (GENinstance*) here,
+ "|Vgs|=%g has exceeded Vgs_max=%g\n",
+ vgs, model->BSIM4v5vgsMax);
+ warns_vgs++;
+ }
+
+ if (vgd > model->BSIM4v5vgdMax)
+ if (warns_vgd < maxwarns) {
+ soa_printf(ckt, (GENinstance*) here,
+ "|Vgd|=%g has exceeded Vgd_max=%g\n",
+ vgd, model->BSIM4v5vgdMax);
+ warns_vgd++;
+ }
+
+ if (vgb > model->BSIM4v5vgbMax)
+ if (warns_vgb < maxwarns) {
+ soa_printf(ckt, (GENinstance*) here,
+ "|Vgb|=%g has exceeded Vgb_max=%g\n",
+ vgb, model->BSIM4v5vgbMax);
+ warns_vgb++;
+ }
+
+ if (vds > model->BSIM4v5vdsMax)
+ if (warns_vds < maxwarns) {
+ soa_printf(ckt, (GENinstance*) here,
+ "|Vds|=%g has exceeded Vds_max=%g\n",
+ vds, model->BSIM4v5vdsMax);
+ warns_vds++;
+ }
+
+ if (vbs > model->BSIM4v5vbsMax)
+ if (warns_vbs < maxwarns) {
+ soa_printf(ckt, (GENinstance*) here,
+ "|Vbs|=%g has exceeded Vbs_max=%g\n",
+ vbs, model->BSIM4v5vbsMax);
+ warns_vbs++;
+ }
+
+ if (vbd > model->BSIM4v5vbdMax)
+ if (warns_vbd < maxwarns) {
+ soa_printf(ckt, (GENinstance*) here,
+ "|Vbd|=%g has exceeded Vbd_max=%g\n",
+ vbd, model->BSIM4v5vbdMax);
+ warns_vbd++;
+ }
+
+ }
+ }
+
+ return OK;
+}
diff --git a/src/spicelib/devices/bsim4v5/bsim4v5def.h b/src/spicelib/devices/bsim4v5/bsim4v5def.h
index 3a7a59855..3cef6e15b 100644
--- a/src/spicelib/devices/bsim4v5/bsim4v5def.h
+++ b/src/spicelib/devices/bsim4v5/bsim4v5def.h
@@ -1470,6 +1470,13 @@ typedef struct sBSIM4v5model
double BSIM4v5af;
double BSIM4v5kf;
+ double BSIM4v5vgsMax;
+ double BSIM4v5vgdMax;
+ double BSIM4v5vgbMax;
+ double BSIM4v5vdsMax;
+ double BSIM4v5vbsMax;
+ double BSIM4v5vbdMax;
+
struct bsim4v5SizeDependParam *pSizeDependParamKnot;
/* Flags */
@@ -2192,6 +2199,13 @@ typedef struct sBSIM4v5model
unsigned BSIM4v5afGiven :1;
unsigned BSIM4v5kfGiven :1;
+ unsigned BSIM4v5vgsMaxGiven :1;
+ unsigned BSIM4v5vgdMaxGiven :1;
+ unsigned BSIM4v5vgbMaxGiven :1;
+ unsigned BSIM4v5vdsMaxGiven :1;
+ unsigned BSIM4v5vbsMaxGiven :1;
+ unsigned BSIM4v5vbdMaxGiven :1;
+
unsigned BSIM4v5LintGiven :1;
unsigned BSIM4v5LlGiven :1;
unsigned BSIM4v5LlcGiven :1;
@@ -3164,6 +3178,13 @@ typedef struct sBSIM4v5model
#define BSIM4v5_MOD_RBSDBYW 1125
#define BSIM4v5_MOD_RBSDBYNF 1126
+#define BSIM4v5_MOD_VGS_MAX 1201
+#define BSIM4v5_MOD_VGD_MAX 1202
+#define BSIM4v5_MOD_VGB_MAX 1203
+#define BSIM4v5_MOD_VDS_MAX 1204
+#define BSIM4v5_MOD_VBS_MAX 1205
+#define BSIM4v5_MOD_VBD_MAX 1206
+
#include "bsim4v5ext.h"
extern void BSIM4v5evaluate(double,double,double,BSIM4v5instance*,BSIM4v5model*,
diff --git a/src/spicelib/devices/bsim4v5/bsim4v5ext.h b/src/spicelib/devices/bsim4v5/bsim4v5ext.h
index 511969bfb..d4b72da68 100644
--- a/src/spicelib/devices/bsim4v5/bsim4v5ext.h
+++ b/src/spicelib/devices/bsim4v5/bsim4v5ext.h
@@ -28,3 +28,4 @@ extern int BSIM4v5temp(GENmodel*,CKTcircuit*);
extern int BSIM4v5trunc(GENmodel*,CKTcircuit*,double*);
extern int BSIM4v5noise(int,int,GENmodel*,CKTcircuit*,Ndata*,double*);
extern int BSIM4v5unsetup(GENmodel*,CKTcircuit*);
+extern int BSIM4v5soaCheck(CKTcircuit *, GENmodel *);
diff --git a/src/spicelib/devices/bsim4v5/bsim4v5init.c b/src/spicelib/devices/bsim4v5/bsim4v5init.c
index e0280b3ee..ba6aca999 100644
--- a/src/spicelib/devices/bsim4v5/bsim4v5init.c
+++ b/src/spicelib/devices/bsim4v5/bsim4v5init.c
@@ -67,7 +67,7 @@ SPICEdev BSIM4v5info = {
NULL, /* DEVsenTrunc */
NULL, /* DEVdisto */
BSIM4v5noise, /* DEVnoise */
- NULL, /* DEVsoaCheck */
+ BSIM4v5soaCheck, /* DEVsoaCheck */
#ifdef CIDER
NULL, /* DEVdump */
NULL, /* DEVacct */
diff --git a/visualc/vngspice.vcproj b/visualc/vngspice.vcproj
index 4fa4eb9f5..8b79e4940 100644
--- a/visualc/vngspice.vcproj
+++ b/visualc/vngspice.vcproj
@@ -4216,6 +4216,10 @@
RelativePath="..\src\spicelib\devices\bsim4v5\b4v5set.c"
>
+
+