The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 18, 2022

Filed:

Jan. 15, 2020
Applicant:

Disco Corporation, Tokyo, JP;

Inventors:

Shunichiro Hirosawa, Tokyo, JP;

Shuzo Mitani, Tokyo, JP;

Yuya Matsuoka, Tokyo, JP;

Assignee:

DISCO CORPORATION, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B24B 1/00 (2006.01); B24B 7/22 (2006.01); B24B 57/02 (2006.01); H01L 21/304 (2006.01);
U.S. Cl.
CPC ...
B24B 7/22 (2013.01); B24B 57/02 (2013.01); H01L 21/304 (2013.01);
Abstract

A method of processing a plate-shaped workpiece is provided. The method includes the steps of sticking a protective member to a face side of the workpiece, holding the face side of the workpiece on a holding surface of a chuck table with the protective member interposed therebetween, grinding a reverse side of the workpiece held on the chuck table to thin the workpiece by rotating a grinding wheel including grinding stones that contain abrasive grains, while a grinding fluid is being supplied from a grinding fluid supply nozzle to the reverse side of the workpiece, and after the step of grinding the reverse side of the workpiece, treating the workpiece or the grinding stones by rotating the grinding wheel and bringing the grinding stones into contact with the reverse side of the workpiece, while stopping supplying the grinding fluid from the grinding fluid supply nozzle.


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