Patent ID: 6353255
Filing Date: 2002-03-05
Classification: H01L,Y10T

Abstract:
A semiconductor device comprising:a semiconductor chip having a plurality of semiconductor elements and a plurality of external terminals formed in a main surface thereof; an insulating tape provided over the main surface of the semiconductor chip, the insulating tape having a top surface and an opposing, rear surface facing towards the main surface of the semiconductor chip; a plurality of leads provided between the insulating tape and the main surface of the semiconductor chip and formed of copper as a core material, each of the plurality of leads having a first portion formed on the rear surface of the insulating tape and a second portion protruding outwardly from an edge of the insulating tape and being electrically connected to a corresponding external terminal of the plurality of external terminals; an elastic layer provided between the main surface of the semiconductor chip and the insulating tape in a manner to expose the plurality of external terminals; and an insulating layer formed between the elastic layer and the insulating tape and having a first part located under the plurality of leads and a second part located under a part of the rear surface of the insulating tape on which the plurality of leads are not formed, wherein a thickness of the second part of the insulating layer is greater than a thickness of the plurality of leads in a thickness direction of the semiconductor chip.