Patent ID: 6787395
Filing Date: 2004-09-07
Classification: H01L

Abstract:
A method of manufacturing a semiconductor device comprising the steps of:(a) providing a semiconductor chip having a main surface in which a plurality of bump electrodes are formed; (b) providing a wiring board having a main surface on which a plurality of electrodes are formed; (c) arranging the semiconductor chip on the main surface of the wiring board so that the plurality of bump electrodes of the semiconductor chip and the plurality of electrodes of the wiring board are individually connected in face-to-face relation with one another, and curing a resin between the main surface of the wiring board and the main surface of the semiconductor chip with heat treatment to fix the wiring board and the semiconductor chip with the cured resin, wherein the wiring board has a coefficient of thermal expansion larger than a coefficient of thermal expansion of the semiconductor chip, and in the step (b) prior to the step (c), the plurality of bump electrodes of the semiconductor chips have pitches wider than corresponding pitches of the plurality of electrodes of the wiring board at a temperature lower than a temperature of the heat treatment.