PVD sputter system having nonplanar target configuration and met

Chemistry: electrical and wave energy – Processes and products – Coating – forming or etching by sputtering

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20429808, 20429812, C23C 1434

Patent

active

055565255

ABSTRACT:
A PVD sputter system having a nonplanar target surface is disclosed. The configuration of the nonplanar target surface is adjusted to provide improved uniformity in deposition film thickness and step coverage at the peripheral boundary regions of the substrate. Emission-inducing power is distributed independently to different portions of the nonplanar target surface so as to modify the deposition profile according to substrate size and other factors.

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D. S. Bang et al., Profile Modeling of Collimated Ti Physical Vapor Deposition, 10th Symposium on Plasma Processing, Electro Chemical Society, San Francisco, May 1994.

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