Application of HICUM and TRADICA at JazzSemi

2002 BCTM HICUM User’s Meeting

2Sept. 29, 2002 02 HICUM User’s Meeting

History

• The HICUM model has been available at Rockwell Conexant Jazz since 1996

– In house implementation in Spectre-RF, Eldo, and MDS until 1999

– Public domain release in 1999– Build-in model maintained (w. r. t. simulator updates) by

Cadence.

• Parameter extraction infrastructure has been implemented in Matlab using Spectre-RF and TRADICA.

• TRADICA has been used as HICUM library generation and parameter predications.

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Present Status

• JazzSemi has become a foundry since March 2002.• JazzSemi releases SGPM and HICUM using TRADICA and

existing infrastructure.• JazzSemi has BiCMOS model library for a variety of

processes:– BC30 (30 GHz Si BiCMOS on 0.35m CMOS platform)– SiGe60 (70 GHz SiGe BiCMOS on 0.35m CMOS platform)– SiGe120 (150 GHz SiGe BiCMOS on 0.18m CMOS platform)

4Sept. 29, 2002 02 HICUM User’s Meeting

SiGe120 Bipolar Library

NPNLibrary

digital2.0V BVceo

LV3.8V BVceo

HV6V BVceo

Emitter Widthew=0.2um

Emitter Widthew=0.9um

1E1B1C

1E2B1C

2E3B2C

3E4B2C

4E5B2C

Emitter lengthel=0.76um

Emitter lengthel=10.16

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Fully physically scaled, discrete npn model set

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Emitter Widthew=0.6um

1E2B2C ...

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5Sept. 29, 2002 02 HICUM User’s Meeting

SGPM and HICUM Model

SGP HICUM

• Short simulation time • Numerical stable • Improved fT fit at high current

• Improved Early effect modelling• BC avalanche• Improved temp. model• Self heating(off by default)

NPN Model

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Examples of Verification Plots

• HICUM is the primary choice when Ic is high and VBC is small.

• Self-heating usually is off and can be turned on per request.