Semiconductor functional element
AssigneeFujitsu Limited
InventorsMakoto Okada, Naoki Yokoyama
Life of this patent
Estimating the term…
Abstract
A semiconductor functional element is composed of at least one bifurcated branch conductive path coplanar with a heterojunction in a semiconductor with a band discontinuity that produces a potential well, and at least two gate electrodes designed for digital operations and a common electrode facing each other. The gate electrodes cross both paths and the two gate electrodes are located outside of one path and the common electrode is located outside the other path so that electron wave conditions at the heterojunction are locally influenced by an electric field which can be changed by selecting a gate electrode to apply a voltage thereby forming a logic or a functional circuit.
Claims23
A semiconductor functional element for forming one of a logic circuit and a functional unit comprising:
- a semiconductor having at least one bifurcated branch conductive path with a heterojunction in said semiconductor with a band discontinuity that produces a potential well;
- at least one pair of input/output electrodes located at both ends of each of said paths having an ohmic contact to both paths of said at least one bifurcated branch conductive path;
- at least two gate electrodes and a common electrode facing each other with said gate electrodes crossing both paths and said two gate electrodes are located outside of said one path, and said common electrode is located outside of said other path for applying a localized electric field on said heterojunctions;
- and
- switching means connected to said gate electrodes for independently switching a connection between the power source and said electrodes.
Dependencies are inferred from the claim text.