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.
Patent No.:
Date of Patent:
Aug. 06, 2024
Filed:
Sep. 12, 2019
Applicant:
Taiwan Semiconductor Manufacturing Co., Ltd., Hsinchu, TW;
Inventors:
Chun-Yu Kuo, Hsinchu, TW;
Shang-Yun Huang, Hsinchu County, TW;
Weibo Yu, Hsinchu, TW;
Shang-Yuan Yu, Hsinchu, TW;
Assignee:
TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD., Hsinchu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01F 23/10 (2022.01); B01J 8/00 (2006.01); H01L 21/67 (2006.01);
U.S. Cl.
CPC ...
B01F 23/19 (2022.01); B01J 8/0035 (2013.01); H01L 21/67023 (2013.01); H01L 21/67075 (2013.01);
Abstract
Chemical liquid is injected into a tank. A concentration of a first gas dissolved in the chemical liquid is detected. Based on the detected concentration of the first gas, at least one of the first gas and a second gas is injected into the tank to sustain at least one of the concentration of the first gas and a concentration of the second gas in a range of a target value.