Patent ID: 6730596
Filing Date: 2004-05-04
Classification: B05C,C23C,H01L,H05K

Abstract:
A method of forming an interconnection, comprising:preparing a substrate having fine recesses formed in a surface thereof; dispersing ultrafine particles in a predetermined solvent to produce an ultrafine particle dispersed liquid, wherein the utltrafine particles have a central region made of a metal component and the central region is surrounded by an organic compound which is chemically bonded to the central region; supplying said ultrafine particle dispersed liquid to said fine recesses of said substrate; heating said substrate to melt and bond the metal; and chemical mechanical polishing the surface of the substrate to remove an excessively attached metal therefrom, wherein said heating comprises heating said substrate in an inactive gas atmosphere containing a small amount of oxygen or ozone, and then heating said substrate in a pure inactive gas atmosphere.