Aptina Proposes Backside PD

Image Sensors World        Go to the original article...

Aptina's patent application US20140077062 "Back side illuminated image sensors with back side charge storage" by Jaroslav Hynecek describes an unusual pixel idea - move the PD implant to the backside:


The advantages of such an approach are not clear to me, but it's a fresh idea and can work, if pixel is not too small and one can spare 10-20V to control the transfer gate Vtx.

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