Patent ID: 8242547
Filing Date: 2012-08-14
Classification: H01L,H04N

Abstract:
1. A solid-state imaging device, comprising a plurality of pixels in an arrangement, wherein: each of the pixels includes (a) a photoelectric conversion element, (b) pixel transistors including a transfer transistor, and (c) a floating diffusion region having a high impurity concentration region, the high impurity concentration region being a portion of the floating diffusion region; a channel width of a transfer gate of the transfer transistor is larger on a side of the floating diffusion region than on a side of the photoelectric conversion element; the transfer gate is shaped with a convex periphery which faces and connects to the floating diffusion region and a linear periphery which faces and connects to the photoelectric conversion element, the transfer gate being arranged on a corner portion of the photoelectric conversion element; the high impurity concentration region is centered along the convex periphery, and in direct contact with the convex periphery of the transfer gate; and other portions of the floating diffusion region around the high impurity concentration region and between the high impurity concentration region and a device isolation region are formed as a region having an impurity concentration lower than the high impurity concentration region.