Patent ID: 8946794
Filing Date: 2015-02-03
Classification: H01L

Abstract:
1. An image sensor comprising: a pixel; a first device isolation layer extending around the pixel; a second device isolation layer extending along an inner side of the first device isolation layer and separating a plurality of active regions of a semiconductor substrate in the pixel from one another, and wherein the pixel comprises a floating diffusion region and a ground region, a gate of a transfer transistor extending into the active region of the semiconductor substrate, a photoelectric converter region disposed within the semiconductor substrate as spaced apart from the gate, and at least one other transistor integrated in a circuit with the transfer transistor, the at least one other transistor including source and drain regions, wherein the ground region is disposed in one of the active regions and is electrically connected to a ground voltage terminal, and the source and drain regions of the at least one other transistor are disposed in another of the active regions.