Patent ID: 7960846
Filing Date: 2011-06-14
Classification: H01L

Abstract:
1. A semiconductor device comprising: a semiconductor chip having an electrode formed on a first major surface thereof, an elastic structural member having first and second surfaces positioned on opposite sides to each other with an opening in a position corresponding to said electrode of said semiconductor chip, said first surface being fixed to said first major surface of said semiconductor chip so as to expose said electrode through said opening, a base member having an opening formed in a position corresponding to said opening of said elastic structural member and having a second major surface fixed to said second surface of said elastic structural member such that a center of said opening of said base member is located coincident with a center of said opening of said elastic structural member, and a wiring fixed to said base member and projected beyond an edge of said opening of said base member, extended through said opening of said elastic structural member and connected to the electrode of said semiconductor chip, wherein a width of the opening of said elastic structural member as viewed in a first direction is set to be no smaller than a sum of the width of the opening of said base member, as viewed in the first direction, and three times a thickness of said elastic structural member that is defined as a distance between said first major surface of said semiconductor chip and said second major surface of said base member, said first direction being a direction perpendicular to the edge of the opening of said elastic structural member beyond which said wiring is projected.