Patent ID: 9654713
Date: 2017-05-16
CPC Classifications: H01L,H04N

Claim:
1. A pixel, comprising: a transfer gate that is controllable among a first biasing condition in which electrons are transferable from a photodiode to a potential well under the transfer gate, a second biasing condition in which the electrons are confinable in the potential well under the transfer gate, and a third biasing condition in which the electrons are transferable out of the potential well under the transfer gate; a floating diffusion; a p+ type barrier implant located at least partially under a portion of the transfer gate; and a pinned charge transfer barrier located on an opposite side of the transfer gate from the photodiode, the pinned charge transfer barrier comprising a p+ type doped region and an n-type doped region; wherein the p+ type doped region of the pinned charge transfer barrier is located between an area for the potential well under the transfer gate and the floating diffusion.