Invention Grant
- Patent Title: Reticle cleaning device and method of use
-
Application No.: US17655877Application Date: 2022-03-22
-
Publication No.: US11650512B2Publication Date: 2023-05-16
- Inventor: Che-Chang Hsu , Sheng-Kang Yu , Shang-Chieh Chien , Li-Jui Chen , Heng-Hsin Liu
- Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
- Applicant Address: TW Hsinchu
- Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
- Current Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
- Current Assignee Address: TW Hsinchu
- Agency: Harrity & Harrity, LLP
- Main IPC: G03F7/20
- IPC: G03F7/20 ; G03F1/82 ; G03F1/62

Abstract:
Some implementations described herein provide a reticle cleaning device and a method of use. The reticle cleaning device includes a support member configured for extension toward a reticle within an extreme ultraviolet lithography tool. The reticle cleaning device also includes a contact surface disposed at an end of the support member and configured to bond to particles contacted by the contact surface. The reticle cleaning device further includes a stress sensor configured to measure an amount of stress applied to the support member at the contact surface. During a cleaning operation in which the contact surface is moving toward the reticle, the stress sensor may provide an indication that the amount of stress applied to the support member satisfies a threshold. Based on satisfying the threshold, movement of the contact surface and/or the support member toward the reticle ceases to avoid damaging the reticle.
Public/Granted literature
- US20220413401A1 RETICLE CLEANING DEVICE AND METHOD OF USE Public/Granted day:2022-12-29
Information query
IPC分类: