Patent ID: 7723837

Claim:
A semiconductor device, comprising: an insulating substrate; a semiconductor chip flip-bonded to a chip-carrying region of said insulating substrate; and an external mounting terminal located in a side of said insulating substrate, on which said semiconductor chip is carried, wherein said semiconductor chip includes a front surface electrode located on an element formation surface of the semiconductor chip and a back surface electrode located on a back surface of the semiconductor chip, wherein said insulating substrate includes an interconnect layer composed of a conductive material, wherein said interconnect layer comprises a multiple-layered interconnects located on a front surface and in an interior of said insulating substrate, wherein said front surface electrode of said semiconductor chip is electrically connected to said external mounting terminal through the multiple-layered interconnects in said multiple-layered interconnect layer, wherein said back surface electrode is electrically connected to a terminal of at least one device located in an interior of said semiconductor chip, wherein said insulating substrate comprises a concave portion and said semiconductor chip is disposed in the concave portion of said insulating substrate, and wherein at least a first electroconductive through plug, which elongates along a normal direction to a same level as said back surface electrode of said semiconductor chip and provides a connection between said multiple-layered interconnects, is located in said insulating substrate.