Chemistry: electrical and wave energy – Apparatus – Coating – forming or etching by sputtering
Reexamination Certificate
2011-05-31
2011-05-31
Nguyen, Nam X (Department: 1724)
Chemistry: electrical and wave energy
Apparatus
Coating, forming or etching by sputtering
C204S192120, C204S298310, C204S298320
Reexamination Certificate
active
07951275
ABSTRACT:
Provided is a hollow cathode sputtering target comprising an inner bottom face having a surface roughness of Ra≦1.0 μm, and preferably Ra≦0.5 μm. This hollow cathode sputtering target has superior sputter film evenness (uniformity), generates few arcing and particles, is capable of suppressing the peeling of the redeposited film on the bottom face, and has superior deposition characteristics.
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Berman Jason M
Howson & Howson LLP
JX Nippon Mining & Metals Corporation
Nguyen Nam X
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