Patent ID: 7728439

Claim:
A semiconductor apparatus in which a semiconductor chip is mounted on a wiring substrate with Flip-Chip, wherein the wiring substrate comprises: a monolithic base substrate formed from any one of a silicon, a ceramic, or a photosensitive glass; a wiring layer having an insulating layer and a wiring formed on a wiring layer formation surface which is one surface of the monolithic base substrate; an electrode formed on a chip mounting surface which is a backside of the wiring layer formation surface of the monolithic base substrate; and a through-electrode formed on the monolithic base substrate electrically connecting the wiring layer formed on the wiring layer formation surface and the electrode formed on the chip mounting surface, wherein a thermal expansion coefficient of the monolithic base substrate is equal to a thermal expansion coefficient of the semiconductor chip, and the thermal expansion coefficient of the monolithic base substrate is less than a thermal expansion coefficient of the wiring layer, wherein the semiconductor chip is bonded to the chip mounting surface with face-down.