Patent ID: 8324553
Filing Date: 2012-12-04
Classification: H01L,H04N

Abstract:
1. A chip-stacked image sensor comprising: a first semiconductor chip comprising a plurality of image signal sensing cells for generating image charges corresponding to image signals, wherein each of the image signal sensing cells comprises at least four photodiodes and at least two image charge transmission pads; and a second semiconductor chip comprising a plurality of image signal conversion cells for converting the image signals into electrical signals, wherein each of the image signal conversion cells comprises at least two image charge receiving pads, wherein the image charges generated by a first image signal sensing cell in the plurality of image signal sensing cells are transmitted to a first image signal conversion cell in the plurality of image signal conversion cells via the at least two image charge transmission pads of the first image signal sensing cell and the at least two image charge receiving pads of the first image signal conversion cell, and wherein the first image signal sensing cell comprises: