Abstract: This paper reviews the invention of Pinned Buried Photodiode in 1975 by Yoshiaki Hagiwara at Sony which is also called as Hole Accumulation Device (HAD) which was originally defined in the ...
Abstract: We present an imaging pixel featuring dual conversion gain in a single exposure based on the pinned photodiode (PPD). The signal charge is first converted to voltage nondestructively using a ...
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