Active solid-state devices (e.g. – transistors – solid-state diode – Heterojunction device – Light responsive structure
Patent
1995-01-27
1996-07-09
Prenty, Mark V.
Active solid-state devices (e.g., transistors, solid-state diode
Heterojunction device
Light responsive structure
257 78, 257192, 257201, 257280, H01L 310328
Patent
active
055347193
ABSTRACT:
Group II-VI thin film transistors, a method of making same and a monolithic device containing a detector array as well as transistors coupled thereto wherein, according to a first embodiment, there is provided a group II-VI insulating substrate, a doped layer of a group II-VI semiconductor material disposed over the substrate, an insulating gate region disposed over the doped layer, a pair of spaced contacts on the doped layer providing source and drain contacts, a gate contact disposed over the insulating gate region, an insulating layer disposed over exposed regions of the substrate, doped layer, insulating gate region and contacts and metallization disposed on the insulating layer and extending through the insulating layer to the contacts. The thickness of the doped layer is less than the maximum depletion region thickness thereof. In accordance with a second embodiment, there is provided a group II-VI insulating substrate, a first conductive doped group II-VI semiconductor layer disposed over the substrate, a second doped group II-VI layer disposed over the first layer and forming a Schottky barrier therewith, an insulating layer disposed over exposed regions of the substrate, first doped layer and second doped layer and metallization disposed on the insulating layer and extending through the insulating layer to spaced regions on the first layer to form source and drain contacts thereto and to the second layer to form a gate contact thereto. The thickness of said first layer is less than the maximum depth of the depletion region formed by the junction of the first and second layers.
REFERENCES:
patent: 4575920 (1986-03-01), Tsunashima
Electronics Letters, vol. 16, No. 22, pp. 839-840, Oct. 23, 1980, by Williams et al. "n-channel M.I.S.F.E.T.S in epitaxial HgCdTe/CdTe".
Kinch Michael A.
Koestner Roland J.
Schiebel Richard A.
Crane John D.
Donaldson Richard L.
Kesterson James C.
Prenty Mark V.
Texas Instruments Incorporated
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