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.
3Sept. 29, 2002 02 HICUM User’s Meeting
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
6Sept. 29, 2002 02 HICUM User’s Meeting
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.