Patent ID: 7781718
Filing Date: 2010-08-24
Classification: H01L,H04N

Abstract:
1. An image sensor, comprising: an array of pixels formed using a substrate, wherein each of the pixels in the array includes: a photosensitive region formed in the substrate; a storage gate transistor; a barrier gate transistor coupled between the storage gate transistor and the photosensitive region; a transfer gate transistor coupled to the storage gate; a floating diffusion region coupled to transfer gate transistor; an amplifier coupled to the floating diffusion region to amplify a voltage of the floating diffusion region; and a global reset transistor that is coupled to the floating diffusion region, wherein the global reset transistor includes a gate that is coupled to receive a global reset signal to reset the pixel, wherein the barrier gate transistor, the transfer gate transistor and the storage gate transistor for each of the pixels are activated in response to the global reset signal while resetting the pixel.