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:
Dec. 26, 2023
Filed:
Jul. 25, 2022
Applicant:
Taiwan Semiconductor Manufacturing Co., Ltd., Hsinchu, TW;
Inventors:
Assignee:
Taiwan Semiconductor Manufacturing Co., Ltd., Hsinchu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/67 (2006.01); B08B 9/08 (2006.01); H01L 21/02 (2006.01); H01L 21/687 (2006.01); B08B 3/08 (2006.01);
U.S. Cl.
CPC ...
H01L 21/67057 (2013.01); B08B 9/08 (2013.01); H01L 21/02057 (2013.01); H01L 21/67023 (2013.01); H01L 21/68707 (2013.01); B08B 3/08 (2013.01);
Abstract
The disclosed techniques include a space filling device to be used with a wet bench in chemical replacement procedures. The space filling device has an overall density that is higher than the chemicals used to purge the wet bench. As such, when embedded into the wet bench, or more specifically, the chemical tank of the wet bench, the space filling device will occupy a portion of the interior volume space. As a result, less purging chemicals are used to fill and bath the wet bench.