Abrading – Machine – Rotary tool
Reexamination Certificate
2007-08-28
2007-08-28
Morgan, Eileen P. (Department: 3723)
Abrading
Machine
Rotary tool
C451S443000, C451S529000
Reexamination Certificate
active
11368704
ABSTRACT:
A pad conditioner may include a surface having a first region including a portion having relatively irregular shaped and friable polishing particles, and a second region including a portion having relatively regular shaped and tough polishing particles. The relatively regular shaped and tough polishing particles may be provided on the edge portion of the surface and the relatively irregular shaped and friable polishing particles may be provided on the center portion of the surface.
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Ahn Bong-Su
Kang Kyoung-Moon
Lee Dong-Jun
Moon Sung-Taok
So Jae-Hyun
Harness & Dickey & Pierce P.L.C.
Morgan Eileen P.
Samsung Electronics Co,. Ltd.
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