Diffusive base transport in narrow base InP/Ga0.47In0.53As heterojunction bipolar transistors
- 23 December 1991
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 59 (26) , 3431-3433
- https://doi.org/10.1063/1.105698
Abstract
The common emitter current gain of InP/Ga0.47In0.53As heterojunction bipolar transitors having a base doping level of 7×1019 cm−3 is found to increase monotonically with decreasing base thickness in the range of 200–1000 Å. The variation of the gain with base thickness WB is proportional to 1×W2B, as expected for diffusive base transport, and a high injection efficiency.Keywords
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