Invention Grant
- Patent Title: Polishing method and apparatus
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Application No.: US14160928Application Date: 2014-01-22
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Publication No.: US09610673B2Publication Date: 2017-04-04
- Inventor: Tsuneo Torikoshi
- Applicant: EBARA CORPORATION
- Applicant Address: JP Tokyo
- Assignee: Ebara Corporation
- Current Assignee: Ebara Corporation
- Current Assignee Address: JP Tokyo
- Agency: Leydig, Voit & Mayer, Ltd.
- Priority: JP2013-011917 20130125
- Main IPC: B24B49/18
- IPC: B24B49/18 ; B24B53/017 ; B24B53/007 ; B24B37/005 ; B24B37/013 ; B24B37/04 ; B24B37/34 ; B24B27/00

Abstract:
A polishing method is used for polishing a surface of a substrate such as a semiconductor wafer. The polishing method includes a polishing process for polishing a surface of the substrate in accordance with a preset polishing recipe, a pad cleaning process for removing foreign matters on the polishing pad by ejecting a cleaning fluid onto the polishing pad, and a substrate transferring process in which the polished substrate is removed from the top ring at a substrate transferring position, a subsequent substrate to be polished is loaded onto the top ring, and then the top ring holding the subsequent substrate to be polished is returned to the polishing table. The pad cleaning process is started after the completion of the polishing recipe is detected, and the pad cleaning process is terminated by detecting a position of the subsequent substrate to be polished which is undergoing the substrate transferring process.
Public/Granted literature
- US20140213157A1 POLISHING METHOD AND APPARATUS Public/Granted day:2014-07-31
Information query