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Title:
MANUFACTURING METHOD FOR POLISHING MACHINE AND POLISHING THIN PLATE
Document Type and Number:
Japanese Patent JP2004074399
Kind Code:
A
Abstract:

To provide a polishing machine for acquiring a uniform and highly precise flat surface and a manufacturing method for a high quality polishing thin plate.

The polishing machine is characterized in: being equipped with an upper surface plate 31 having an upper surface plate hollow part 49 opening toward the bottom surface, a lower surface plate 23 having a lower surface plate hollow part 27 formed opening toward the upper surface, a polishing pad 25 provided at the opening part of either the upper surface plate 31 or the lower surface plate 23, and a sheet-like holding material 47 at the opening of the hollow part of the other surface plate; having a polishing material W arranged between the holding material 47 and the polishing pad 25; floatingly supporting the polishing pad 25 and the polishing material W by supplying pressurized fluid to the inside of each of the hollow parts 49, 27 to elastically stretch the polishing pad 25 and the polishing material W; and supplying slurry to the polishing pad 25 and relatively moving the polishing pad 25 and the polishing material W to polish the polishing material W.


Inventors:
KAJIWARA JIRO
Application Number:
JP2003174987A
Publication Date:
March 11, 2004
Filing Date:
June 19, 2003
Export Citation:
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Assignee:
MITSUBISHI MATERIALS TECHNO CO
International Classes:
B24B37/04; H01L21/304; (IPC1-7): B24B37/04; H01L21/304
Attorney, Agent or Firm:
Masatake Shiga
Tadashi Takahashi
Masakazu Aoyama
Akihiko Eguchi
Hideyuki Sugiura
Yasuhiko Murayama
Noriko Yanai