Patent ID: 7768140

Claim:
A semiconductor device comprising: a semiconductor chip having a plurality of electrode pads; internal connection terminals provided on the plurality of electrode pads; external connection pads electrically connected to the electrode pads through the internal connection terminals; a low elastic resin member disposed opposite to a surface of the semiconductor chip on which the plurality of electrode pads are formed; and an underfill resin filled between the semiconductor chip and the low elastic resin member and between the electrode pads and the external connection pads, wherein the underfill resin spaces the semiconductor chip at a distance from the low elastic resin member such that the semiconductor chip is not disposed directly on a surface of the low elastic resin member, wherein the low elastic resin member has a lower elastic modulus than the underfill resin, wherein the low elastic resin member has a plurality of through holes therethrough, and each of the external connection pads is disposed in a corresponding one of the through holes, and wherein a lower surface of the external connection pads are substantially flush with a lower surface of the low elastic resin member.