Patent ID: 7101726

Claim:
A method of manufacturing a solid-state imaging device including a structure comprising at least a silicon layer in which a light-receiving sensor portion for effecting photoelectric-conversion is formed, an interconnection layer formed on the surface side of said silicon layer and in which a lens is formed on the rear side opposite to said surface side of said silicon layer, comprising: a process for forming a groove on said silicon layer around an image pickup region; a process for forming a groove on said silicon layer at a pad portion; a process for burying an insulating layer on said groove formed around said image pickup region; a process for burying an insulating layer on said groove formed at said pad portion; a process for forming a light-receiving sensor portion on said silicon layer after at least said insulating layer was formed around said image pickup region; a process for forming said interconnection layer on said surface side of said silicon layer; a process for connecting an electrode layer to said interconnection layer of said pad portion by burying a conductive material into said insulating layer buried into said groove of said pad portion; and a process for forming said lens on the back side of said silicon layer by using said insulating layer buried into said groove around said image pickup region as an alignment mark.