Title:
MULTI-COLOR, MULTI-FOCAL PLANE OPTICAL DETECTOR
Document Type and Number:
WIPO Patent Application WO2001048831
Kind Code:
A9
Abstract:
A semiconductor-based, photodetector device capable of simultaneously detecting two or more selected wavelengths of light on a pixel-registered basis. The device has detector layers (20, 40) of selected semiconductor materials of one micron or less in thickness interspersed with contact layers (10, 30, 50). Each detector layer (20, 40) having a different light absorption to wavelength response curve (LM1, LM2). All contact layers (10, 30, 50), including detector bias voltages, have electrical contacts (11, 31, 51) on the backside of the pixel for discrete pixel connection to mating connection on a suitable ROIC substrate (70). Among its several embodiments, there is a multi-color detector array and a single channel per pixel differential optical signal detector.
Inventors:
FASKA THOMAS
TAYLOR MICHAEL
SUNDARAM MANI
WILLIAMS RICHARD
TAYLOR MICHAEL
SUNDARAM MANI
WILLIAMS RICHARD
Application Number:
PCT/US2000/035162
Publication Date:
May 16, 2002
Filing Date:
December 22, 2000
Export Citation:
Assignee:
BAE SYSTEMS INFORMATION (US)
International Classes:
H01L31/0232; H01L31/101; H01L31/103; H01L31/0216; (IPC1-7): H01L31/0232
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