The Lambda Bipolar Phototransistor - Analysis and Applications

Ching Yuan Wu, Hong Dah Sheng, Yao Tsong Tsai

研究成果: 雜誌貢獻期刊論文同行評審

2 引文 斯高帕斯(Scopus)

摘要

An analytic model for the I— V characteristic of the lambda bipolar phototransistor (LBPT) is developed in which the characteristic parameters, such as the peak voltage, peak current, differential negative resistance, valley voltage, and valley current, are expressed in terms of the known device parameters and photocurrent. It is shown that the valley current of the new device in the dark is much smaller than the saturation dark current of the conventional bipolar phototransistor and the differential negative resistance region can be varied for wide range by controlling the fabrication processes. Comparisons between the characteristics of the fabricated devices and the developed model have been made and satisfactory agreement has been obtained. Moreover, some interesting applications of this new device in photodetection are also presented and discussed. In addition, the frequency limit of the LBPT and the improvement methods are also discussed.

原文???core.languages.en_GB???
頁(從 - 到)1227-1234
頁數8
期刊IEEE Journal of Solid-State Circuits
20
發行號6
DOIs
出版狀態已出版 - 12月 1985

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