Invention Grant
US07201829B2 Mask plate design 有权
面膜设计

Mask plate design
Abstract:
The present invention includes a mask plate design that includes at least one or a plurality of channels portions on a surface of the mask plate, into which electrolyte solution will accumulate when the mask plate surface is disposed on a surface of wafer, and out of which the electrolyte solution will freely flow. There are also at least one or a plurality of polish portions on the mask plate surface that allow for polishing of the wafer when the mask plate surface is disposed on a surface of wafer.
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