Heterostructure interdigital high speed photoconductive detector

Details Heterostructure interdigital high speed photoconductive detector Heterostructure interdigital high speed photoconductive detector

1984-02-27

1986-06-03

Carroll, James J.

357 4, 357 15, 357 16, 357 52, 357 58, 357 65, H01L 2914, H01L 2712, H01L 2948, H01L 29161

Patent

active

045933049

ABSTRACT:
A high speed photoconductive detector is disclosed which comprises two interdigital electrically conducting electrodes formed on a photoconductive layer. The device speed and sensitivity are improved by using a double-heterostructure configuration comprising an active layer formed on an isolation layer in turn formed on a supporting substrate. A passivation layer is formed on the active layer. This configuration confines the generated carriers to the active layer. Consequently, current will be induced under optical illumination due to photo-carrier generation. This interdigitated geometry allows for a large device cross-section and small carrier transit distance.

REFERENCES:
patent: 3675026 (1972-07-01), Woodall
patent: 3700980 (1972-10-01), Belasco et al.
patent: 3993506 (1976-11-01), Moon
patent: 4021836 (1977-05-01), Andrews et al.
patent: 4213138 (1980-07-01), Campbell et al.
patent: 4257055 (1981-03-01), Hess et al.
patent: 4346394 (1982-08-01), Figueroa et al.
patent: 4376285 (1983-03-01), Leonberger et al.
H. Ando et al., "InGaAs/InP Separated Absorption and Multiplication Regions Avalanche Photodiode Using Liquid- and Vapor-Phase Epitaxies", IEEE Journal of Quantum Electronics, vol. QE-17, (1981), pp. 250-254.
J. C. Gammel et al., "An Epitaxial Photoconductive Detector for High Speed Optical Detection", International Electron Devices Meeting, Technical Digest 1979, pp. 634-637.
T. Sugeta et al., "Metal-Semiconductor-Metal Photodetector for High-Speed Optoelectronic Circuits", Proceedings of the 11th Conference (1979 International) on Solid State Devices, Tokyo, 1979; Japanese Journal of Applied Physics, vol. 19, (1980), Supplement 19-1, pp. 459-464.
T. Sugeta et al., "High-Gain Metal-Semiconductor-Metal Photodetectors for High-Speed Optoelectronic Circuits", 37th Annual DRC June 25-27, 1979, University of Colorado, Boulder, Co., pp. 1855-1856.

Affiliated with

Also associated with

Rating

Heterostructure interdigital high speed photoconductive detector does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Heterostructure interdigital high speed photoconductive detector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Heterostructure interdigital high speed photoconductive detector will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1235258