Photoelectric conversion device and photoelectric conversion system with boundary region
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United States of America Patent
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Nov 11, 2014
Issued Date -
N/A
app pub date -
Sep 12, 2012
filing date -
Oct 4, 2011
priority date (Note) -
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Abstract
One of disclosed embodiments provides a photoelectric conversion device, comprising a member including a first surface configured to receive light, and a second surface opposite to the first surface, and a plurality of photoelectric conversion portions aligned inside the member in a depth direction from the first surface, wherein at least one of the plurality of photoelectric conversion portions other than the photoelectric conversion portion positioned closest to the first surface includes, on a boundary surface thereof with the member, unevenness having a difference in level larger than a difference in level of unevenness of the photoelectric conversion portion positioned closest to the first surface, and wherein the boundary surface having the unevenness is configured to localize or resonate light incident on the member from a side of the first surface around the boundary surface having the unevenness.
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