Abrading – Precision device or process - or with condition responsive... – With feeding of tool or work holder
Reexamination Certificate
2007-01-16
2007-01-16
Wilson, Lee D. (Department: 3723)
Abrading
Precision device or process - or with condition responsive...
With feeding of tool or work holder
C451S288000, C451S388000, C451S443000
Reexamination Certificate
active
11325737
ABSTRACT:
A grinder designed to provide an automatic grinding operation for the manufacture of a semiconductor device wafer. The grinder includes a base, a rotatable index table mounted to the base, and a grinding wheel assembly including a grinding wheel for grinding a flat surface on the wafer. The index table includes a wafer holder for receiving and holding the wafer. A dressing station, including a dressing element, is positioned adjacent to the index table for dressing the grinding wheel. The dressing station is rotatable between a first position and a second position where the grinding wheel is dressed by the dressing element.
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Adams Evans P.A.
Ojini Anthony
Wilson Lee D.
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