Chemistry: electrical and wave energy – Apparatus – Coating – forming or etching by sputtering
Reexamination Certificate
2007-06-25
2011-11-22
Hendricks, Keith (Department: 1723)
Chemistry: electrical and wave energy
Apparatus
Coating, forming or etching by sputtering
C204S298110, C118S721000, C118S7230AN, C118S728000, C118S729000
Reexamination Certificate
active
08062487
ABSTRACT:
A wafer supporting device of a sputter apparatus includes a pedestal positioned in a sputtering chamber and used to load a wafer for sputtering, a deposition ring having a recess positioned on a peripheral portion of the pedestal, and a cover ring positioned on the pedestal and the deposition ring. The cover ring has a gate corresponding to the recess.
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Chen Been
Cheng Chi-Piao
Huang Yu-Jen
Liang Li-Chun
Ting Sheng-Yih
Band Michael
Hendricks Keith
Hsu Winston
Margo Scott
United Microelectronics Corp.
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