A new InP-InGaAs HBT with a superlattice-collector structure

Jing Yuh Chen, Der Feng Guo, Shiou Ying Cheng, Kuan Ming Lee, Chun Yuan Chen, Hung Ming Chuang, Ssu Yi Fu, Wen Chau Liu

研究成果: Letter同行評審

10 引文 斯高帕斯(Scopus)


The dc characteristics of an interesting InP-InGaAs heterojunction bipolar transistor (HBT) with a superlattice (SL) structure incorporated in the base-collector (B-C) junction are demonstrated. In the SL structure, holes injected from the collector collide with holes confined in the SL and impact them out of the SL across the valence-band discontinuities. With a collector-emitter (C-E) voltage VCE less than the C-E breakdown voltage BVCEO, the current gain can be increased at base-current inputs because the released holes from the SL inject into the base to cause the emitter-base junction operating under more forward-biased condition. An ac current gain up to 204 is obtained. At base-emitter voltage VBE inputs, the released holes travel to the base terminal to decrease the base current. The studied HBT exhibits common-emitter current gains exceeding 47 at low current levels and useful gains spreading over seven orders of magnitude of collector current.

頁(從 - 到)244-246
期刊IEEE Electron Device Letters
出版狀態Published - 2004 5月

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 電氣與電子工程


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