Abrading – Abrading process – Utilizing fluent abradant
Reexamination Certificate
2011-01-11
2011-01-11
Eley, Timothy V (Department: 3723)
Abrading
Abrading process
Utilizing fluent abradant
C451S041000, C451S059000, C451S288000, C451S442000
Reexamination Certificate
active
07867060
ABSTRACT:
Disclosed is a polishing method for polishing a surface of a structure for magnetic-head manufacture by CMP in the process of manufacturing a magnetic head using a ceramic substrate made of a ceramic material containing AlTiC, the structure including the ceramic substrate and one or more layers formed thereon, and having the surface to be polished. The polishing method uses a retainer ring made of a ceramic material containing AlTiC.
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Aritomo Hiroki
Hirao Youji
Hori Tetsuji
Miyasaka Akira
Eley Timothy V
Oliff & Berridg,e PLC
TDK Corporation
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