Chemistry: electrical and wave energy – Apparatus – Coating – forming or etching by sputtering
Patent
1978-11-06
1980-04-15
Weisstuch, Aaron
Chemistry: electrical and wave energy
Apparatus
Coating, forming or etching by sputtering
204192R, C23C 1500
Patent
active
041982835
ABSTRACT:
A magnetron cathode assembly for use in a cathode sputtering apparatus includes a support means for a rectangular frame-like annular target and spaced apart inner and outer pole pieces fastened to the support member and providing a rectangular annular channel for mounting the target in electrically and thermally conductive contact with the support means. Preferably, the target is a set of four straight bars shaped at the ends to assemble together as a rectangular frame. Target bars having a symmetrical hourglass cross section with overhanging flanged side portions adjacent to front and rear faces are adapted to be reversibly clamped to the support means by the inner and outer poles for simple and rapid replacement in the field, said hourglass shape providing maximum utilization of target material.
REFERENCES:
patent: 4100055 (1978-07-01), Rainey
patent: 4116806 (1978-09-01), Love et al.
Class Walter H.
Hurwitt Steven D.
Unterkofler George J.
Materials Research Corporation
Weisstuch Aaron
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