Invention Grant
- Patent Title: Particle prevention in wafer edge trimming
-
Application No.: US16534310Application Date: 2019-08-07
-
Publication No.: US11081334B2Publication Date: 2021-08-03
- Inventor: Tung-He Chou , Sheng-Chau Chen , Ming-Tung Wu , Hsun-Chung Kuang
- Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
- Applicant Address: TW Hsin-Chu
- Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
- Current Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
- Current Assignee Address: TW Hsin-Chu
- Agency: Eschweiler & Potashnik, LLC
- Main IPC: H01L21/02
- IPC: H01L21/02 ; B08B5/02 ; H01L21/687 ; H01L21/67 ; B08B3/10

Abstract:
In some embodiments, the present disclosure relates to a wafer trimming and cleaning apparatus, which includes a blade that is configured to trim a damaged edge portion of a wafer, thereby defining a new sidewall of the wafer. The wafer trimming and cleaning apparatus further includes water nozzles and an air jet nozzle. The water nozzles are configured to apply deionized water to the new sidewall of the wafer to remove contaminant particles generated by the blade. The air jet nozzle is configured to apply pressurized gas to a first top surface area of the wafer to remove the contaminant particles generated by the blade. The first top surface area overlies the new sidewall of the wafer.
Public/Granted literature
- US20210043443A1 PARTICLE PREVENTION IN WAFER EDGE TRIMMING Public/Granted day:2021-02-11
Information query
IPC分类: