Two wave band radiation detector having two facing photodetector

Details Two wave band radiation detector having two facing photodetector Two wave band radiation detector having two facing photodetector

1994-11-17

1997-02-11

Allen, Stephone

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

2502141, 250214R, 25037006, 2503384, G01J 350

Patent

active

056023855

ABSTRACT:
A radiation detector which senses two wave bands and a process for making this detector. A first substrate includes a first photodetection element sensitive to a first wave band. A second substrate contains a second photodetection element which is sensitive to a second wave band. The second substrate is transparent to at least the first wave band. The two photodetection elements are positioned facing each other. The substrates are interconnected by conductive spheres.

REFERENCES:
patent: 3962578 (1976-06-01), Roschen
patent: 4651001 (1987-03-01), Harada et al.
patent: 5239179 (1993-08-01), Baker
patent: 5300777 (1994-04-01), Goodwin
patent: 5391881 (1995-02-01), Jeuch et al.
Patent Abstracts of Japan, vol. 12, No. 285 (E-642), Aug. 4, 1988 & JP-A-63 062 266, Mar. 18, 1988.

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