Patent ID: 7125740
Filing Date: 2006-10-24
Classification: H01L

Abstract:
1. A method of fabricating a solid-state image pickup device, comprising the steps of: forming mask patterns corresponding to patterns of first and third transfer electrodes, which are to be alternately arranged in each vertical transfer register formation region and which are to extend in parallel to each other between light receiving portions adjacent to each other in the vertical direction, on a first electrode material layer; forming side walls on each of said mask patterns; patterning said first electrode material layer via said mask patterns having said side walls, to form first and third transfer electrodes formed by the first layer; forming second transfer electrodes by a second electrode material layer via an insulating film in such a manner that each of said second transfer electrodes is disposed between said first and third transfer electrodes of the first layer arranged in said vertical transfer register formation region and between said light receiving portions; and forming fourth transfer electrodes by a third electrode material layer via an insulating film in such a manner that each of said fourth transfer electrodes is between said third and first transfer electrodes of the first layer in said vertical transfer register formation region and between said light receiving portions.