InGaAsP/InP HETERO JUNCTION BIPOLAR TRANSISTOR WITH HIGH CURRENT GAIN.

被引:0
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作者
Fukano, Hideki [1 ]
Itaya, Yoshio [1 ]
Motosugi, George [1 ]
机构
[1] NTT, Atsugi, Jpn, NTT, Atsugi, Jpn
关键词
SEMICONDUCTING INDIUM COMPOUNDS - Applications;
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摘要
N-InP emitter, p-InGaAsP base and n-InGaAsP collector hetero junction bipolar transistors (HBT's) were fabricated. It has been show that a maximum current gain of more than 10,000 is obtained with a base carrier concentration of 5 multiplied by 10**1**7 cm** minus **3 and a 0. 15 mu m base width. The current gain decreases notably as the base carrier concentration increases. This behavior is explained by the decrease in emitter efficiency caused by the increase in recombination-gneration current in the emitter-base depletion region.
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页码:504 / 506
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