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Star-Hspice Quick Reference Guide

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MOSFET Models<br />

• Set up the conversion of temperature between <strong>Star</strong>-<strong>Hspice</strong><br />

and SPICE3 as follows:<br />

SPICE3:.OPTIONS TEMP=125<br />

.MODEL NCH NMOS LEVEL=8<br />

+TNOM =27 ...<br />

HSPICE:.TEMP 125<br />

.MODEL NCH NMOS LEVEL=47<br />

+TREF =27 ...<br />

• SCALM affects the common MOS parameters, such as XL,<br />

LD, XW, WD, CJ, CJSW, JS, and JSW.<br />

• LEVEL 47 uses MOS parasitic models, specified by ACM.<br />

• LEVEL 47 uses MOS noise models, specified by NLEV.<br />

• DELVTO and DTEMP on the element line can be used with<br />

LEVEL 47.<br />

• The impact ionization current set by PSCBE1 and PSCBE2<br />

contributes to the drain-source current; not bulk current.<br />

For more information about this model, see “Using the BSIM3<br />

Version 2 MOS Model in <strong>Star</strong>-<strong>Hspice</strong>” in the <strong>Star</strong>-<strong>Hspice</strong><br />

Manual.<br />

10-8 <strong>Star</strong>-<strong>Hspice</strong> <strong>Quick</strong> <strong>Reference</strong> <strong>Guide</strong>

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