Patent ID: 7847198
Filing Date: 2010-12-07
Classification: H01L,H05K,Y10T

Abstract:
1. A wiring board comprising: an insulating base; an adhesive layer formed on the surface of the insulating base; a conductor wiring formed on an upper surface of the adhesive layer; and a bump formed crossing the longitudinal direction of the conductor wiring over regions on the adhesive layer on both sides of the conductor wiring, wherein a back face of the conductor wiring at a region where the bump is formed, and a back face and a part of a side face of the bump formed on both sides of the conductor wiring, are embedded in the adhesive layer so as to be adhered to an inside surface of the adhesive layer, with an upper surface of the conductor wiring on which the bump is formed being higher than an outside surface of the adhesive layer which is exposed to outside.