Patent ID: 6369441
Filing Date: 2002-04-09
Classification: H01L,Y10T

Abstract:
An electronic device, comprising:a circuit board; and a semiconductor device wherein: plural leads are formed on an a same surface of an insulating layer as which said semiconductor device is located so that the surface of said lead and the surface of said insulating layer are located on the same plane; plural openings for respectively exposing said plural leads are formed on the surface reverse to said surface of said insulating layer; an external electrode is formed at each opening; the electrode of said semiconductor device is electrically connected to said plural leads; an outside ring composed of a thicker metal layer than said lead is provided in the periphery of a part in which said plural leads are formed via a suspending part; and said outside ring is provided with a metal lamination in which a metal layer composed of nickel or a nickel alloy is formed on the side of said suspending part, wherein: said semiconductor device is electrically connected to an electrode on said circuit board via said external electrode.