Design of multi-finger HBTs with a thermal-electrical model

Yang-Hua Chang1, Chen-Chun Chang-Chiang1, Yueh-Cheng Lee1, Chi-Chung Liu1
1National Yunlin University of Science and Technology, Yunlin, Taiwan

Tóm tắt

Temperature distribution on the emitter fingers of heterojunction bipolar transistors (HBTs) is studied with a three-dimensional thermal-electrical model. Using this model, multi-finger HBTs is designed with non-uniform spacing. An efficient design procedure is presented. The calculated results show significant temperature reduction on non-uniform spacing devices.

Từ khóa

#Fingers #Heterojunction bipolar transistors #Temperature distribution #Electronic ballasts #Resistors #Equations #Gallium arsenide #Thermal conductivity #Electronic mail #Delay

Tài liệu tham khảo

10.1063/1.104373 10.1109/16.481724 10.1109/HKEDM.1998.740192 10.1016/0038-1101(93)90130-I 10.1109/16.299666 10.1109/16.231560 10.1109/16.69894 liou, 1994, analytical model for the algaas/gaas multiemitter finger hbt including self-heating and thermal coupling effects, Circuits Devices and Systems IEE Proceedings-, 141, 469, 10.1049/ip-cds:19941394