Photoelectric conversion apparatus and imaging system using the same
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United States of America Patent
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Jun 2, 2015
Grant Date -
Apr 18, 2013
app pub date -
Dec 6, 2012
filing date -
Mar 9, 2009
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Abstract
A plurality of photoelectric conversion elements including a first photoelectric conversion element, a second photoelectric conversion element, and a third photoelectric conversion element, are arranged in a photoelectric conversion apparatus of the present invention. Provided, between the first photoelectric conversion element and the second photoelectric conversion element, is a first semiconductor region of a first conductivity type and of a first width in which a signal charge is a minor charier. And, provided, between the first photoelectric conversion element and the third photoelectric conversion element, is a second semiconductor region of the first conductivity type in a higher impurity concentration and of a second width narrower than the first width at a position deeper in a semiconductor substrate rather than a depth of the first semiconductor region.
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