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SPICE Simulators

This chapter describes the details of using the SPICE simulators with IC-CAP. For general information on IC-CAP simulation, refer to Chapter 6, "Simulating," in the User's Guide.


Note


The Solaris OS must include the cpp utility, which IC-CAP uses to manage output from SPICE simulators. See "System Requirements" in the Installation and Configuration Guide for more details.


IC-CAP can interface with the following SPICE simulators. They are provided as a courtesy to IC-CAP users (though not supported by Agilent Technologies), and you must purchase a license to use them.

    • SPICE2    The SPICE2G.6 simulator developed at U.C. Berkeley.
    • SPICE3    The SPICE3E2 simulator developed at U.C. Berkeley.
    • HPSPICE    The Agilent Technologies implementation of SPICE2. Although there are some differences between this version and the SPICE2G.6 version from U.C. Berkeley, these 2 simulators are compatible. For more information refer to SPICE Simulator Differences. The version of HPSPICE provided with IC-CAP can be run only from within the IC-CAP program—it cannot be run stand-alone.


Note


The HSPICE simulator, developed by Cadence, uses input deck syntax similar to that of the SPICE-type simulators; thus, it is referred to as a SPICE-type simulator in this manual. IC-CAP currently supports only the features of HSPICE also available in the U.C. Berkeley SPICE simulators.


 

The SPICE simulators support the following analysis types:

    • DC
    • AC
    • Transient
    • Noise
    • Capacitance Voltage (CV)
    • 2-Port (S,H,Y,Z,K,A parameter)
    • Time-Domain Reflectometry (TDR)


Note


The latter 3 simulation types are not directly available in the SPICE simulators; IC-CAP builds the additional circuitry required in the simulator input files to perform the simulation.


IC-CAP supports the features of ELDO that are also available in the UCB SPICE simulators but also provides limited support for models written in either ELDO-FAS or HDL-A. ELDO is an analog simulator developed by Mentor Graphics Corp. ELDO input deck syntax is compatible with that of the SPICE type simulators; therefore, in ELDO is categorized as a SPICE-type simulator this manual.

The IC-CAP version of SPICE3 supports the following models:

Model Group
Supported Models
Model Files
MOSFET
Level 1, Level 2, Level 3
nmos/pmos2
nmos3/pmos3



BSIM3, BSIM4
BSIM3_DC_CV_Measure
BSIM3_DC_CV_Extract
BSIM3_RF_Measure
BSIM3_RF_Extract
BSIM3_AC_Noise_Tutorial
BSIM3_CV_Tutorial
BSIM3_DC_Tutorial
BSIM3_Temp_Tutorial
BSIM3_DC_CV_Finetune
BSIM4_DC_CV_Measure
BSIM4_DC_CV_Extract
BSIM4_RF_Measure
BSIM4_RF_Extract
BSIM4_DC_CV_Tutorial
BSIM4_DC_CV_Finetune



MOS Model 9
mm9
mm9_demo

BJT
Gummel Poon
bjt_npn/bjt_pnp
bjt_nhf
bjt_ncehf
bjt_ft
mnsnpn
sabernpn

GaAs
Statz
UCBGaas
UGaashf

Diode
PN Diode
pn_diode


Philips JUNCAP
juncap

The following additional SPICE-like simulators are also discussed in this chapter:

    • PRECISE
    • PSPICE

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