Abrading – Machine – Rotary tool
Reexamination Certificate
2007-04-03
2007-04-03
Morgan, Eileen P. (Department: 3723)
Abrading
Machine
Rotary tool
C438S692000, C156S345120
Reexamination Certificate
active
11287941
ABSTRACT:
A wafer polishing solution and method for polishing a wafer comprising an amino acid and calcium ions or barium ions. The wafer polishing solution can be adjusted to control cut rate and selectivity for modifying semiconductor wafers using a fixed abrasive CMP process.
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Rueb Christopher J.
Velamakanni Bhaskar V.
Webb Richard J.
3M Innovative Properties Company
Baker James A.
Biesterveld Daniel D.
Morgan Eileen P.
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