摘要
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.
原文 | English |
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頁(從 - 到) | 244-246 |
頁數 | 3 |
期刊 | IEEE Electron Device Letters |
卷 | 25 |
發行號 | 5 |
DOIs | |
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