Semiconductor photo-electric converter
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United States of America Patent
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May 28, 1991
Issued Date -
N/A
app pub date -
Apr 4, 1989
filing date -
Jul 14, 1978
priority date (Note) -
Expired
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Abstract
A high sensitivity semiconductor photo-electric converter is provided by electrically isolating the gate region of a static induction transistor which exhibits non-saturating current versus voltage characteristic. Optically ionized minority carriers are stored in the gate region to control the potential thereof. A semiconductor gate region provided with a insulated gate is very effective to enhance the dynamic range of the converter. Non-saturating characteristic enables enlargement of the output current simply by increasing the drain voltage. A high-speed and high sensitivity image pick-up device can be materialized by integrating a multiplicity of the static induction type photo-electric converter elements. A switching transistor may be merged in the gate region of each photo-electric converter element to enhance the operation speed of the image pick-up device.
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