900 MHz 7.4 W SiGe heterojunction bipolar transistor

The SiGe heterojunction bipolar transistor (HBT) suitable for microwave power applications was fabricated by a simple planar process compatible with Si process. The current gain of the SiGe HBT is 70, and the breakdown voltages of the collector junction and emitter junction are about 28 V and 5 V re...

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Bibliographic Details
Published in:Proceedings 1999 IEEE Hong Kong Electron Devices Meeting (Cat. No.99TH8458) pp. 138 - 141
Main Authors: Jinshu Zhang, Hongyong Jia, Pei-Hsin Tsien, Tai-Chin Lo, Zengmin Yang, Jie Huang, Yihui Wang, Luoguang Huang, Chunguang Liang, Mingxian Feng, Qiyuan Lin
Format: Conference Proceeding
Language:English
Published: IEEE 1999
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Summary:The SiGe heterojunction bipolar transistor (HBT) suitable for microwave power applications was fabricated by a simple planar process compatible with Si process. The current gain of the SiGe HBT is 70, and the breakdown voltages of the collector junction and emitter junction are about 28 V and 5 V respectively. In common emitter configuration and class C operation, the SiGe HBT with continuous wave output power of 7.4 W and power added efficiency of 53% and power gain of 8.7 dB was obtained at the frequency of 900 MHz. Hence, the emitter current linear density of the SiGe HBT with emitter region width of 6 /spl mu/m is 1.7 A/cm.
ISBN:0780356489
9780780356481
DOI:10.1109/HKEDM.1999.836426