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US5343087A Semiconductor device having a substrate bias generator 失效
具有衬底偏置发生器的半导体器件

Semiconductor device having a substrate bias generator
摘要:
A semiconductor device includes an enhancement MOS transistor formed in a semiconductor substrate and a substrate bias generator supplies a predetermined bias voltage to the substrate. The impurity concentration of the substrate is within the range in which the enhancement MOS transistor keeps the enhancement mode when the substrate potential equals to the built-in potential .PHI.B.
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