Solid state imaging device
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United States of America Patent
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-
May 30, 1995
Issued Date -
N/A
app pub date -
Apr 21, 1994
filing date -
Apr 1, 1991
priority date (Note) -
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status (Latency Note)
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Abstract
A solid state imaging device in which a protection film which is transparent with respect to visible light is formed on a pixel array in which a multiplicity of pixels, each of which includes at least a light receiving portion and an accumulating portion, are arranged and which has a microlens array which is composed of a multiplicity of microlenses selectively disposed on said protection film to correspond to each of the light receiving pixels and made of organic or inorganic material, the solid state imaging device being constituted in such a manner that the optical axis and the focal point of each of microlens are present in the high electric field region of the light receiving portion and the accumulating portion of each of the pixels, the high electric field region being a region in which an avalanche phenomenon takes place.
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