Patent ID: 8247702
Filing Date: 2012-08-21
Classification: H01L,H05K,Y10T

Abstract:
1. An integrated circuit mounted board comprising a printed wiring board and an integrated circuit bare chip mounted on the printed wiring board, wherein: the printed wiring board includes a metal base, an insulating member made of an insulating material and disposed on the metal base, and a wiring pattern disposed on the insulating member; the wiring pattern includes an electrode part to which the integrated circuit bare chip is electrically coupled; the insulating member includes an under region being opposite to the electrode part; the metal base includes a metal substrate and a metal portion protruding from the metal substrate; the metal portion is buried in the under region of the insulating member; the insulating member includes a plurality of insulating layers; the wiring pattern includes a plurality of wiring layers; each of the plurality of wiring layers is disposed on one of the plurality of insulating layers; the plurality of insulating layers includes a first insulating layer on which the electrode part is disposed and a second insulating layer disposed on an opposite side of the first insulating layer from the electrode part; and the metal portion penetrates the plurality of insulating layers from a surface of the plurality of insulating layers adjacent to the metal base to a surface of the second insulating layer adjacent to the first insulating layer.