PHOTOSENSOR ARRAY DEVICE

PURPOSE:To improve the yield by forming a plurality of sets of photosensor elements which are formed of photodiodes and blocking diodes, and selectively using the photosensor elements having no film defects by providing terminals at both ends of the element. CONSTITUTION:Photosensor elements 4'...

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Bibliographic Details
Main Authors ORITSUKI RIYOUJI, KANAI HIROMI, SAITOU SUSUMU
Format Patent
LanguageEnglish
Published 18.05.1984
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
SEMICONDUCTOR DEVICES
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Summary:PURPOSE:To improve the yield by forming a plurality of sets of photosensor elements which are formed of photodiodes and blocking diodes, and selectively using the photosensor elements having no film defects by providing terminals at both ends of the element. CONSTITUTION:Photosensor elements 4' which are formed of photodiodes 2' and blocking diodes 3' which have substantially equal electric characteristics as photodiodes 2 and blocking diodes 3 are connected in series with a photosensor element 4 which is composed of the photodiodes 2 and the blocking diodes 3, terminals 9, 10, 11 for shortcircuiting either one set of the photosensor elements 4, 4' are formed to compose a photosensor element corresponding to 1-bit picture element. When a defect for causing the film defect of an amorphous silicon takes place, for example, at the element 4, the elements 9, 10 are shortcircuited by using a shortcircuiting wire 12 to disable the element 4, thereby forming a photsensor element 4' of good quality.
Bibliography:Application Number: JP19820196014