Patent ID: 8896137
Filing Date: 2014-11-25
Classification: H01L,Y10S

Abstract:
1. A solid-state image pickup device, comprising: a silicon layer; a pixel portion formed in said silicon layer for processing and outputting signal charges obtained by carrying out photoelectric conversion for incident light, an alignment mark formed in a periphery of said pixel portion and in said silicon layer; and a contact portion connecting a first electrode within a wiring layer formed on a first surface of said silicon layer, and a second electrode formed on a second surface opposite to said first surface of said silicon layer through an insulating film, wherein said alignment mark and said contact portion are formed from conductive layers made of the same conductive material and formed within respective holes each extending completely through said silicon layer through respective insulating layers made of the same material, characterized in that said first electrode within said wiring layer is an uppermost wiring layer, and a connection element is formed between said contact portion and said first electrode.