Patent ID: 6998705
Filing Date: 2006-02-14
Classification: H01L,H05K,Y02P

Abstract:
1. A semiconductor device provided with a semiconductor chip and a substrate, said substrate has a first wiring layer electrically connected to said semiconductor chip and also has a surface with a terminal, comprising: a solder ball connected to said terminal; a through-hole adjacent to said first wiring layer, said through-hole goes through said substrate and extends to said solder ball through said terminal; a second wiring layer extending from said first wiring layer along an internal wall of said through-hole to said terminal, said second wiring layer electrically connects between said first wiring layer and said terminal; and a fixed probe formed of a heat conductive material inserted in said through-hole, one end of said fixed probe being connected to said solder ball and another end of said fixed probe being adapted to come into contact with an external heat generating mechanism, whereby heat generated by the external heat generating mechanism is conducted by said fixed probe and transferred to said solder ball to melt said solder ball.