Abrading – Abrading process – Glass or stone abrading
Reexamination Certificate
2007-08-21
2007-08-21
Nguyen, Dung Van (Department: 3723)
Abrading
Abrading process
Glass or stone abrading
C451S388000, C451S398000
Reexamination Certificate
active
11320073
ABSTRACT:
A pedestal pad (workpiece supporting table pad) is arranged on the top of a pedestal (workpiece supporting table) for temporarily placing and holding a pre-polished or post-polished wafer (workpiece). This pedestal pad is formed of resin, and at least a surface of the pedestal pad which comes into contact with the wafer is non-absorbable to a fluid. The tissue of the pedestal pad is dense and smooth, and does not have any cavity, such as fine holes, which holds the fluid.
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Nguyen Dung Van
Westerman, Hattori, Daniels & Adrian , LLP.
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