Patent ID: 6725522
Filing Date: 2004-04-27
Classification: B21K,C23C,Y10T

Abstract:
In a method of preparing a bonded sputter target/backing plate assembly comprising a target composed of a metal or alloy to be sputtered and an underlying metallic backing plate member, an improved method for joining said target and backing plate along mating surfaces thereof, comprising:a) forming a plurality of projecting male portions in at least one of said mating surfaces and a plurality of female recesses in said other of said mating surfaces; b) positioning said target and backing plate adjacent each other to form an assembly having an interface defined by said mating surfaces; and c) pressure consolidating said assembly under low temperature conditions of less than about 38Â° C. whereby that said male portions force fit into said female recesses to bondingly join said target and backing plate to each other.