Invention Grant
- Patent Title: Wafer polishing head, method for manufacturing wafer polishing head, and wafer polishing apparatus comprising same
-
Application No.: US17765899Application Date: 2019-10-23
-
Publication No.: US12134162B2Publication Date: 2024-11-05
- Inventor: Jae Chel Sung
- Applicant: SK SILTRON CO., LTD.
- Applicant Address: KR Gyeongsangbuk-do
- Assignee: SK SILTRON CO., LTD.
- Current Assignee: SK SILTRON CO., LTD.
- Current Assignee Address: KR Gyeongsangbuk-do
- Agency: KED & ASSOCIATES, LLP
- Priority: KR10-2019-0121299 20191001
- International Application: PCT/KR2019/013927 WO 20191023
- International Announcement: WO2021/066242 WO 20210408
- Main IPC: B24B37/20
- IPC: B24B37/20

Abstract:
The present invention provides a method for manufacturing a wafer polishing head, the method comprising the steps of: coupling a guide ring consisting of a plurality of layers to the edge of a base substrate; rounding the edge of the guide ring; forming a first coating layer on the rounded surface of the guide ring through coating; fixing a rubber chuck to the base substrate; and forming a second coating layer on the outer circumferential surfaces of an adhesive and an adhesive material through coating, from the rubber chuck to the first coating layer.
Public/Granted literature
Information query