Patent ID: 6737741
Filing Date: 2004-05-18
Classification: H01L,H05K,Y02P,Y10T

Abstract:
An electronic device comprising:a wiring board having a plurality of electrode pads; a first semiconductor device having a semiconductor chip, a plurality of external terminals formed on a main surface of the semiconductor chip, a plurality of bumps each fixed on the external terminals; a second semiconductor device having a semiconductor chip and a plurality of external terminals electrically connected with the semiconductor chip; wherein the bumps are passed to and electrically connected with the electrode pads, wherein the clearance between the first semiconductor device and the wiring board is filled with resin, wherein the external terminals of the second semiconductor device are fixed on and electrically connected with the electrode pads with solder, wherein the wiring board has a rigid substrate and a soft layer softer than the rigid substrate formed on the rigid substrate, and wherein the electrode pads electrically connected with the bumps and the electrode pads electrically connected with the external terminals of the second semiconductor device are formed on the soft layer.