Patent ID: 6068742
Filing Date: 2000-05-30
Classification: C23C,H01J

Abstract:
A reversible target arrangement comprising a circular plate having a central axis, a top plate surface and a bottom plate surface connected to the top plate surface by a rim surface extending around a circumference of said plate, at least one recess or at least one protrusion at the rim surface, the at least one recess or protrusion being symmetrical with respect to a median plane extending perpendicular to the central axis of the plate and through a center of thickness of the plate, the at least one recess or protrusion being dimensioned for mechanically clamping the plate to one clamping arrangement of a sputtering device for performing a sputtering operation, the sputtering device having a mask, and both the top and bottom surfaces of the plate being sputter material, engagement of the at least one recess or protrusion in the one clamping arrangement enabling both the top and bottom surfaces to be used as sputtering surfaces in sequence by reversing the plate in the one clamping arrangement, the plate having a central opening therethrough which extends through both the top and bottom plate surfaces and is adapted to eliminate any cooling contact with the sputtering device, cooling contact and clamping with the sputtering device being only at the circumference of said plate said central opening is adapted for the mask to extend through said central opening.