Abstract
The dc performances of a novel InP/InGaAs double-heterojunction bipolar transistor (DHBT) with the undoped tunneling barrier and composite collector structure are studied and demonstrated. Due to the mass filtering effect for holes, a thin InP tunneling barrier can be used to replace the wide-gap emitter. Experimentally, an extremely small offset voltage of 25 mV and breakdown voltage BVCEO of 9.2 V are obtained. Furthermore, the abrupt junction and δ-doping structure can eliminate carrier blocking effect effectively when electrons transporting across the base-collector heterojunction. Meanwhile, the dc current gain is almost independent of the perimeter-to-area ratio of the emitter due to the low surface recombination.
Original language | English |
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Pages (from-to) | 277-280 |
Number of pages | 4 |
Journal | Conference Proceedings-International Conference on Indium Phosphide and Related Materials |
DOIs | |
Publication status | Published - 2002 |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering