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:
Sep. 26, 2023

Filed:

Nov. 20, 2020
Applicant:

Taiwan Semiconductor Manufacturing Co., Ltd., Hsinchu, TW;

Inventors:

Tzu-Yang Lin, Tainan, TW;

Cheng-Han Wu, Taichung, TW;

Chen-Yu Liu, Kaohsiung, TW;

Kuo-Shu Tseng, Banciao, TW;

Shang-Sheng Li, Zhubei, TW;

Chen Yi Hsu, Zhubei, TW;

Yu-Cheng Chang, Hsinchu, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/67 (2006.01);
U.S. Cl.
CPC ...
H01L 21/67242 (2013.01); H01L 21/67023 (2013.01);
Abstract

A lithography includes a storage tank that stores process chemical fluid, an anti-collision frame, and an integrated sensor assembly. The storage tank includes a dispensing port positioned at a lowest part of the storage tank in a gravity direction. The anti-collision frame is coupled to the storage tank. An integrated sensor assembly is disposed on at least one of the anti-collision frame and the storage tank to measure a variation in fluid quality in response to fluid quality measurement of fluid.


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