Patent ID: 8217516
Filing Date: 2012-07-10
Classification: H01L

Abstract:
1. A semiconductor device, comprising: a semiconductor substrate; a conductive pattern located on one surface side of said semiconductor substrate; a through-hole formed in said semiconductor substrate and located above said conductive pattern; an insulating layer located at a bottom surface on said one surface side of said through-hole; an opening pattern formed in said insulating layer, where a distance from a circumference of the opening pattern to a central axis of said through-hole is smaller than a distance from a circumference of said through-hole to the central axis of said through-hole, so as to expose said conductive pattern to the bottom surface of said through-hole; and a through-electrode formed of a first material in said opening pattern, in said through-hole, and on a surface side opposite to said one surface side of said semiconductor substrate, wherein said through-electrode has a bump formed on said surface side opposite to said one surface side of said semiconductor substrate, wherein said through-hole has a part that is located at a place other than an upper end thereof and whose distance from a central axis to a circumference is larger than that of the upper end.