Star-Hspice Quick Reference Guide

MOSFET Introduction
Name (Alias) Unit Default Description
CF3 - 1.0 Transition of cgs and
cgd from saturation to
linear region as a
function of vds
CF4 - 50.0 Contour of cgb and cgs
smoothing factors
CF5 - 0.667 Capacitance multiplier
for cgs in saturation
region
CF6 - 500.0 Contour of cgd
smoothing factor
CGBEX - 0.5 Cgb exponent
See “Using Meyer Capacitance Parameters CAPOP=0, 1, 2” in
the Star-Hspice Manual.
Gate Capacitances (Simpson Integration) CAPOP=3
The CAPOP=3 model is the same set of equations and
parameters as the CAPOP=2 model. The charges are obtained
by Simpson numeric integration instead of the box integration
found in CAPOP models 1, 2, and 6. For detailed information,
see “Defining CAPOP=3 — Gate Capacitances (Simpson
Integration)” in the Star-Hspice Manual.
9-12 Star-Hspice Quick Reference Guide