Patent ID: 6458237
Filing Date: 2002-10-01
Classification: H01L

Abstract:
A method of mounting a semiconductor device having bumps on a board having pads so that each of the bumps is joined to a corresponding one of the pads, an insulating adhesive to be hardened being provided between said semiconductor device and said board, said method comprising steps of:(a) pressing said bumps of said semiconductor device on said pads of said board; and (b) heating an area in which each of said bumps and a corresponding one of said pads are in contact with each other, wherein pressure of said bumps against said pads reaches a predetermined value which plastically deforms said pads before a temperature of said insulating adhesive to which heat is supplied in step (b) reaches temperature at which said insulating adhesive is hardened, wherein said insulating adhesive has heating characteristics by which liquidity of said insulating adhesive is produced by an initial heating stage and said insulating adhesive is gradually hardened with increasing temperature, and wherein the insulation adhesive contracts during hardening to maintain pressure on the bumps and the deformed pads.