Chemistry: electrical and wave energy – Apparatus – Coating – forming or etching by sputtering
Patent
1989-05-22
1991-02-26
Weisstuch, Aaron
Chemistry: electrical and wave energy
Apparatus
Coating, forming or etching by sputtering
C23C 1435
Patent
active
049959581
ABSTRACT:
A magnetron sputtering apparatus includes a rotatable magnet. At least a portion of the centerline of the magnet lies on a curve defined by ##EQU1## where .xi.(u) is a preselected erosion profile. When stationary, the magnet generates a localized magnetic field of approximately constant width. In operation, when the magnet is rotated, it generates the preselected erosion profile in the target. The preselected erosion profile may be constant.
REFERENCES:
patent: 4444643 (1984-04-01), Garrett
patent: 4872964 (1989-10-01), Suzuki et al.
Anderson Robert L.
Helmer John C.
Cole Stanley Z.
Novack Sheri M.
Varian Associates Inc.
Weisstuch Aaron
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