Patent ID: 6207550
Filing Date: 2001-03-27
Classification: H01L,H05K

Abstract:
A method of fabricating a semiconductor device, wherein a number of bump electrodes have previously been formed on a surface of a multilayer circuit substrate for mounting a semiconductor element, bottoms of the bump electrodes being connected to via hole conductors buried in the multilayer circuit substrate,the method comprising:applying a conductive adhesive to tops of the bump electrodes on the surface of the multilayer circuit substrate to form end portions of the conductive adhesive;semi-curing the conductive adhesive into a B-staged state;pressing the end portions of the conductive adhesive on the bump electrodes onto a flat surface to level the end portions of the conductive adhesive to a uniform height;connecting electrodes of the semiconductor element to the end portions on top of the bump electrodes of the multilayer substrate and curing the conductive adhesive; andfilling the clearance between the semiconductor element and the multilayer circuit substrate with a contractive insulating resin and curing the contractive insulating resin.