Patent ID: 6521108
Filing Date: 2003-02-18
Classification: B23K,C23C,Y10T

Abstract:
A method of forming a bonded sputter target/backing plate combination comprising:(a) providing a target having a bonding surface thereon wherein said target is composed of a metal selected from Co and alloys thereof; (b) providing a backing plate having a bonding surface thereon wherein said backing plate is composed of a metal selected from the group consisting of Al and Cu and alloys thereof; c) positioning said target and backing plate so that said target bonding surface and said backing plate bonding surface are adjacent each other. (d) providing a bond interlayer between said bonding surfaces of said target and said backing plate to form an assembly, said bond interlayer comprising a metal selected from group Ib metals and their alloys; and (e) subjecting said assembly to temperature and pressure consolidation conditions to diffusion bond said target and backing plate together, said temperature being between about 190Â° C. - about 400Â° C.