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Method and apparatus for polishing workpiece
   
Document Number
US Patent 7011569
Issued Date
March 14, 2006
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Inventors
Shimizu; Noburu (Kanagawa-ken,JP)
Kimura; Norio (Kanagawa-ken,JP)
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Abstract
A workpiece such as a semiconductor wafer is polished by pressing the workpiece against a polishing surface under a predetermined pressure. A polished surface of the workpiece is processed by pressing the workpiece against a processing surface under a predetermined pressure while the processing surface makes circulatory translational motion along a predetermined path. The processing surface comprises a surface of a polishing cloth or a surface of an abrading plate, and the polished surface of the workpiece is further polished or cleaned.
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Number of Claims:
13
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Owner
Published
March 14, 2006
Application Number
10/134,513
Filed
April 30, 2002
US Classification
451/41   257/E21.23 451/287 451/288 451/57 451/66 451/67
Int'l Classification
B24B   1/00   (20060101)  
Examiner
Parent Case
This is a Divisional Application of application Ser. No. 09/301,718, filed Apr. 29, 1999, now U.S. Pat. No. 6,413,156 which is a continuation-in-part of application Ser. No. 08/857,252, filed May 16, 1997, now U.S. Pat. No. 5,989,107 of application Ser. No. 08/972,012, filed Nov. 17, 1997 now abandoned, and of International Application No. PCT/JP98/05253, filed Nov. 20, 1998.
Priority Data
May 16, 1996 [JP] 8-146776 Nov 15, 1996 [JP] 8-321141 Nov 21, 1997 [JP] 9-338032
USPTO Field of Search
451/41   451/287   451/288   451/57   451/58   451/59   451/63   451/65   451/66   451/67  
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