Quantum interference type semiconductor device

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357 4, 357 16, H01L 2980

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active

051307669

ABSTRACT:
A quantum interference type semiconductor device is composed of at least one bifurcated branch conductive channel with a heterojunction in a semiconductor with a band discontinuity that produced a potential well between two semiconductor regions into which a carrier is injected and from which a carrier is drained, at least one gate electrode is arranged at the side of the one bifurcated branch conduction channel, and a kind of filter using a resonance tunneling barrier arranged before or upstream of the semiconductor region into which a carrier is injected. The filter passes a carrier having a certain energy legvel to the channel whereby the level of the carrier traveling in the channel becomes equal to realize a good quantum interference effect.

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