Patent ID: 8035234
Filing Date: 2011-10-11
Classification: H01L,Y10T

Abstract:
1. A wiring substrate for connecting a mounting board on one surface thereof and mounting an integrated circuit chip on the opposite surface to said one surface, said wiring substrate comprising: a conductive connecting portion penetrating said wiring substrate which connects to at l least a portion of a wiring layer for said integrated circuit chip, said portion of said wiring layer formed on said wiring substrate; and an insulating portion formed at a lateral side of said conductive connecting portion which surrounds said conductive connecting portion via a portion of said wiring substrate, wherein, said insulating portion includes an annular insulating portion formed at the lateral side of said conductive connecting portion, which surrounds the side of said connecting portion and is separated from said conductive connection portion by a portion of said wiring substrate, and a plurality of columnar insulating portions arranged annularly on the inside and outside of the annular insulating portion.