Patent ID: 6689254
Filing Date: 2004-02-10
Classification: C23C,H01J

Abstract:
A replaceable sputtering target comprising:a circular target unit that is formed at least in part of a volume of sputtering material, the unit having a forward facing front sputtering face of the sputtering material and a rearward facing rear face having a water impermeable cooling surface lying in an annular area thereon around a center; a recessed peripheral rim having: a forward facing annular front edge having a vacuum-sealing surface thereon surrounding the front sputtering face, the front edge being spaced rearwardly of the forward face of the target unit, and a rearward facing annular rear edge having an outer water-sealing surface thereon surrounding the rear face of the target unit; tension maintaining support structure fixed at the center on the rear face, and the rear face having an annular inner water-sealing surface thereon surrounding the tension maintaining support structure.