mirror of
https://github.com/ra3xdh/qucs_s
synced 2025-03-28 21:13:26 +00:00
290 lines
11 KiB
C++
290 lines
11 KiB
C++
/***************************************************************************
|
|
mosfet_sub.cpp
|
|
----------------
|
|
begin : Fri Jun 4 2004
|
|
copyright : (C) 2003 by Michael Margraf
|
|
email : michael.margraf@alumni.tu-berlin.de
|
|
***************************************************************************/
|
|
|
|
/***************************************************************************
|
|
* *
|
|
* This program is free software; you can redistribute it and/or modify *
|
|
* it under the terms of the GNU General Public License as published by *
|
|
* the Free Software Foundation; either version 2 of the License, or *
|
|
* (at your option) any later version. *
|
|
* *
|
|
***************************************************************************/
|
|
|
|
#include "mosfet_sub.h"
|
|
#include "node.h"
|
|
#include "misc.h"
|
|
#include "extsimkernels/spicecompat.h"
|
|
|
|
Basic_MOSFET::Basic_MOSFET()
|
|
{
|
|
// these must be the first properties in the list !!!
|
|
Props.append(new Property("Type", "nfet", false,
|
|
QObject::tr("polarity")+" [nfet, pfet]"));
|
|
Props.append(new Property("Vt0", "1.0 V", true,
|
|
QObject::tr("zero-bias threshold voltage")));
|
|
|
|
Props.append(new Property("Kp", "2e-5", true,
|
|
QObject::tr("transconductance coefficient in A/V^2")));
|
|
Props.append(new Property("Gamma", "0.0", false,
|
|
QObject::tr("bulk threshold in sqrt(V)")));
|
|
Props.append(new Property("Phi", "0.6 V", false,
|
|
QObject::tr("surface potential")));
|
|
Props.append(new Property("Lambda", "0.0", true,
|
|
QObject::tr("channel-length modulation parameter in 1/V")));
|
|
Props.append(new Property("Rd", "0.0 Ohm", false,
|
|
QObject::tr("drain ohmic resistance")));
|
|
Props.append(new Property("Rs", "0.0 Ohm", false,
|
|
QObject::tr("source ohmic resistance")));
|
|
Props.append(new Property("Rg", "0.0 Ohm", false,
|
|
QObject::tr("gate ohmic resistance")));
|
|
Props.append(new Property("Is", "1e-14 A", false,
|
|
QObject::tr("bulk junction saturation current")));
|
|
Props.append(new Property("N", "1.0", false,
|
|
QObject::tr("bulk junction emission coefficient")));
|
|
Props.append(new Property("W", "1 um", false,
|
|
QObject::tr("channel width")));
|
|
Props.append(new Property("L", "1 um", false,
|
|
QObject::tr("channel length")));
|
|
Props.append(new Property("Ld", "0.0", false,
|
|
QObject::tr("lateral diffusion length")));
|
|
Props.append(new Property("Tox", "0.1 um", false,
|
|
QObject::tr("oxide thickness")));
|
|
Props.append(new Property("Cgso", "0.0", false,
|
|
QObject::tr("gate-source overlap capacitance per meter of "
|
|
"channel width in F/m")));
|
|
Props.append(new Property("Cgdo", "0.0", false,
|
|
QObject::tr("gate-drain overlap capacitance per meter of "
|
|
"channel width in F/m")));
|
|
Props.append(new Property("Cgbo", "0.0", false,
|
|
QObject::tr("gate-bulk overlap capacitance per meter of "
|
|
"channel length in F/m")));
|
|
Props.append(new Property("Cbd", "0.0 F", false,
|
|
QObject::tr("zero-bias bulk-drain junction capacitance")));
|
|
Props.append(new Property("Cbs", "0.0 F", false,
|
|
QObject::tr("zero-bias bulk-source junction capacitance")));
|
|
Props.append(new Property("Pb", "0.8 V", false,
|
|
QObject::tr("bulk junction potential")));
|
|
Props.append(new Property("Mj", "0.5", false,
|
|
QObject::tr("bulk junction bottom grading coefficient")));
|
|
Props.append(new Property("Fc", "0.5", false,
|
|
QObject::tr("bulk junction forward-bias depletion capacitance "
|
|
"coefficient")));
|
|
Props.append(new Property("Cjsw", "0.0", false,
|
|
QObject::tr("zero-bias bulk junction periphery capacitance per meter "
|
|
"of junction perimeter in F/m")));
|
|
Props.append(new Property("Mjsw", "0.33", false,
|
|
QObject::tr("bulk junction periphery grading coefficient")));
|
|
Props.append(new Property("Tt", "0.0 ps", false,
|
|
QObject::tr("bulk transit time")));
|
|
Props.append(new Property("Nsub", "0.0", false,
|
|
QObject::tr("substrate bulk doping density in 1/cm^3")));
|
|
Props.append(new Property("Nss", "0.0", false,
|
|
QObject::tr("surface state density in 1/cm^2")));
|
|
Props.append(new Property("Tpg", "1", false,
|
|
QObject::tr("gate material type: 0 = alumina; -1 = same as bulk; "
|
|
"1 = opposite to bulk")));
|
|
Props.append(new Property("Uo", "600.0", false,
|
|
QObject::tr("surface mobility in cm^2/Vs")));
|
|
Props.append(new Property("Rsh", "0.0", false,
|
|
QObject::tr("drain and source diffusion sheet resistance in "
|
|
"Ohms/square")));
|
|
Props.append(new Property("Nrd", "1", false,
|
|
QObject::tr("number of equivalent drain squares")));
|
|
Props.append(new Property("Nrs", "1", false,
|
|
QObject::tr("number of equivalent source squares")));
|
|
Props.append(new Property("Cj", "0.0", false,
|
|
QObject::tr("zero-bias bulk junction bottom capacitance per square "
|
|
"meter of junction area in F/m^2")));
|
|
Props.append(new Property("Js", "0.0", false,
|
|
QObject::tr("bulk junction saturation current per square "
|
|
"meter of junction area in A/m^2")));
|
|
Props.append(new Property("Ad", "0.0", false,
|
|
QObject::tr("drain diffusion area in m^2")));
|
|
Props.append(new Property("As", "0.0", false,
|
|
QObject::tr("source diffusion area in m^2")));
|
|
Props.append(new Property("Pd", "0.0 m", false,
|
|
QObject::tr("drain junction perimeter")));
|
|
Props.append(new Property("Ps", "0.0 m", false,
|
|
QObject::tr("source junction perimeter")));
|
|
Props.append(new Property("Kf", "0.0", false,
|
|
QObject::tr("flicker noise coefficient")));
|
|
Props.append(new Property("Af", "1.0", false,
|
|
QObject::tr("flicker noise exponent")));
|
|
Props.append(new Property("Ffe", "1.0", false,
|
|
QObject::tr("flicker noise frequency exponent")));
|
|
Props.append(new Property("Temp", "26.85", false,
|
|
QObject::tr("simulation temperature in degree Celsius")));
|
|
Props.append(new Property("Tnom", "26.85", false,
|
|
QObject::tr("parameter measurement temperature")));
|
|
|
|
Name = "T";
|
|
SpiceModel = "M";
|
|
}
|
|
|
|
MOSFET_sub::MOSFET_sub()
|
|
{
|
|
Description = QObject::tr("MOS field-effect transistor with substrate");
|
|
createSymbol();
|
|
tx = x2+4;
|
|
ty = y1+4;
|
|
Model = "MOSFET";
|
|
}
|
|
|
|
// -------------------------------------------------------
|
|
Component* MOSFET_sub::newOne()
|
|
{
|
|
MOSFET_sub* p = new MOSFET_sub();
|
|
p->Props.first()->Value = Props.first()->Value;
|
|
p->Props.next()->Value = Props.next()->Value;
|
|
p->recreate(0);
|
|
return p;
|
|
}
|
|
|
|
QString MOSFET_sub::spice_netlist(bool isXyce)
|
|
{
|
|
QString s = spicecompat::check_refdes(Name,SpiceModel);
|
|
QList<int> pin_seq;
|
|
pin_seq<<1<<0<<2<<3; // Pin sequence: DGS
|
|
// output all node names
|
|
foreach(int pin, pin_seq) {
|
|
QString nam = Ports.at(pin)->Connection->Name;
|
|
if (nam=="gnd") nam = "0";
|
|
s += " "+ nam; // node names
|
|
}
|
|
|
|
QStringList spice_incompat,spice_tr;
|
|
spice_incompat<<"Type"<<"Temp"<<"L"<<"W"<<"Ad"<<"As"<<"Pd"<<"Ps"
|
|
<<"Rg"<<"N"<<"Tt"<<"Nrd"<<"Nrs"<<"Ffe";
|
|
// spice-incompatible parameters
|
|
if (isXyce) {
|
|
spice_tr<<"Vt0"<<"VtO"; // parameters that need conversion of names
|
|
} else {
|
|
spice_tr.clear();
|
|
}
|
|
|
|
QStringList check_defaults_list;
|
|
QString unit;
|
|
check_defaults_list<<"Nsub"<<"Nss";
|
|
foreach (QString parnam,check_defaults_list) { // Check some parameters for default value (zero)
|
|
double val,fac; // And reduce parameter list
|
|
misc::str2num(getProperty(parnam)->Value,val,unit,fac);
|
|
if ((val *= fac)==0.0) {
|
|
spice_incompat.append(parnam);
|
|
}
|
|
}
|
|
|
|
QString par_str = form_spice_param_list(spice_incompat,spice_tr);
|
|
|
|
QString mosfet_type = getProperty("Type")->Value.at(0).toUpper();
|
|
|
|
double l,w,as,ad,ps,pd,fac;
|
|
misc::str2num(getProperty("L")->Value,l,unit,fac);
|
|
l *= fac;
|
|
misc::str2num(getProperty("W")->Value,w,unit,fac);
|
|
w *= fac;
|
|
misc::str2num(getProperty("Ad")->Value,ad,unit,fac);
|
|
ad *= fac;
|
|
misc::str2num(getProperty("As")->Value,as,unit,fac);
|
|
as *= fac;
|
|
misc::str2num(getProperty("Pd")->Value,pd,unit,fac);
|
|
pd *= fac;
|
|
misc::str2num(getProperty("Ps")->Value,ps,unit,fac);
|
|
ps *= fac;
|
|
|
|
s += QString(" MMOD_%1 L=%2 W=%3 Ad=%4 As=%5 Pd=%6 Ps=%7 Temp=%8\n")
|
|
.arg(Name).arg(l).arg(w).arg(ad).arg(as).arg(pd).arg(ps).arg(getProperty("Temp")->Value);
|
|
s += QString(".MODEL MMOD_%1 %2MOS (%3)\n").arg(Name).arg(mosfet_type).arg(par_str);
|
|
|
|
return s;
|
|
}
|
|
|
|
// -------------------------------------------------------
|
|
Element* MOSFET_sub::info(QString& Name, char* &BitmapFile, bool getNewOne)
|
|
{
|
|
Name = QObject::tr("n-MOSFET");
|
|
BitmapFile = (char *) "nmosfet_sub";
|
|
|
|
if(getNewOne) return new MOSFET_sub();
|
|
return 0;
|
|
}
|
|
|
|
// -------------------------------------------------------
|
|
Element* MOSFET_sub::info_p(QString& Name,
|
|
char* &BitmapFile, bool getNewOne)
|
|
{
|
|
Name = QObject::tr("p-MOSFET");
|
|
BitmapFile = (char *) "pmosfet_sub";
|
|
|
|
if(getNewOne) {
|
|
MOSFET_sub* p = new MOSFET_sub();
|
|
p->Props.first()->Value = "pfet";
|
|
p->Props.next()->Value = "-1.0 V";
|
|
p->recreate(0);
|
|
return p;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
// -------------------------------------------------------
|
|
Element* MOSFET_sub::info_depl(QString& Name,
|
|
char* &BitmapFile, bool getNewOne)
|
|
{
|
|
Name = QObject::tr("depletion MOSFET");
|
|
BitmapFile = (char *) "dmosfet_sub";
|
|
|
|
if(getNewOne) {
|
|
MOSFET_sub* p = new MOSFET_sub();
|
|
p->Props.first();
|
|
p->Props.next()->Value = "-1.0 V";
|
|
p->recreate(0);
|
|
return p;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
// -------------------------------------------------------
|
|
void MOSFET_sub::createSymbol()
|
|
{
|
|
Lines.append(new qucs::Line(-14,-13,-14, 13,QPen(Qt::darkBlue,3)));
|
|
Lines.append(new qucs::Line(-30, 0,-14, 0,QPen(Qt::darkBlue,2)));
|
|
|
|
Lines.append(new qucs::Line(-10,-11, 0,-11,QPen(Qt::darkBlue,2)));
|
|
Lines.append(new qucs::Line( 0,-11, 0,-30,QPen(Qt::darkBlue,2)));
|
|
Lines.append(new qucs::Line(-10, 11, 0, 11,QPen(Qt::darkBlue,2)));
|
|
Lines.append(new qucs::Line( 0, 11, 0, 30,QPen(Qt::darkBlue,2)));
|
|
Lines.append(new qucs::Line(-10, 0, 20, 0,QPen(Qt::darkBlue,2)));
|
|
|
|
Lines.append(new qucs::Line(-10,-16,-10, -7,QPen(Qt::darkBlue,3)));
|
|
Lines.append(new qucs::Line(-10, 7,-10, 16,QPen(Qt::darkBlue,3)));
|
|
|
|
Lines.append(new qucs::Line( -4, 24, 4, 20,QPen(Qt::darkBlue,2)));
|
|
|
|
if(Props.first()->Value == "nfet") {
|
|
Lines.append(new qucs::Line( -9, 0, -4, -5,QPen(Qt::darkBlue,2)));
|
|
Lines.append(new qucs::Line( -9, 0, -4, 5,QPen(Qt::darkBlue,2)));
|
|
}
|
|
else {
|
|
Lines.append(new qucs::Line( -1, 0, -6, -5,QPen(Qt::darkBlue,2)));
|
|
Lines.append(new qucs::Line( -1, 0, -6, 5,QPen(Qt::darkBlue,2)));
|
|
}
|
|
|
|
if((Props.next()->Value.trimmed().at(0) == '-') ==
|
|
(Props.first()->Value == "nfet"))
|
|
Lines.append(new qucs::Line(-10, -8,-10, 8,QPen(Qt::darkBlue,3)));
|
|
else
|
|
Lines.append(new qucs::Line(-10, -4,-10, 4,QPen(Qt::darkBlue,3)));
|
|
|
|
Ports.append(new Port(-30, 0));
|
|
Ports.append(new Port( 0,-30));
|
|
Ports.append(new Port( 0, 30));
|
|
Ports.append(new Port( 20, 0));
|
|
|
|
x1 = -30; y1 = -30;
|
|
x2 = 30; y2 = 30;
|
|
}
|