Patent ID: 8310057
Filing Date: 2012-11-13
Classification: H01L,H05K

Abstract:
1. A substrate comprising: an insulating film in which a penetrating hole is formed, the penetrating hole extending between a first surface of the insulating film and a second surface of the insulating film opposite to the first surface of the insulating film; a wiring pattern that is adhered to the first surface of the insulating film by an adhesive material, a first portion of the wiring pattern formed over the penetrating hole, a part of the adhesive material formed on a first part of an internal wall surface so as not to stop up the penetrating hole, the adhesive material not being in contact with a second part of the internal wall surface, the internal wall surface forming the penetrating hole; and an external electrode that contacts the first portion of the wiring pattern and projecting through the penetrating hole and extending beyond the second surface of the insulating film, a first portion of the external electrode being in contact with a first part of a surface of the part of the adhesive material, the first part of the surface of the part of the adhesive material facing a first opening of the penetrating hole in the second surface of the insulating film, the first portion of the external electrode positioned within the penetrating hole.