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:
Apr. 10, 2018
Filed:
Jul. 12, 2012
Kuo-yin Lin, Hsin-Chu, TW;
Chih-i Peng, Hsin-Chu, TW;
Kun-tai Wu, Hsin-Chu, TW;
Teng-chun Tsai, Tainan, TW;
Hsiang-pi Chang, New Taipei, TW;
Cary Chia-chiung Lo, Taipei, TW;
Kuo-Yin Lin, Hsin-Chu, TW;
Chih-I Peng, Hsin-Chu, TW;
Kun-Tai Wu, Hsin-Chu, TW;
Teng-Chun Tsai, Tainan, TW;
Hsiang-Pi Chang, New Taipei, TW;
Cary Chia-Chiung Lo, Taipei, TW;
Taiwan Semiconductor Manufacturing Company Limited, Hsin-Chu, TW;
Abstract
Among other things, one or more techniques and/or systems are provided for cleaning a polishing module of a semiconductor polishing apparatus. Purge air flow can be supplied into the polishing module (e.g., directed towards a polishing unit, a shield, and/or other polishing components) to create turbulence air flow within the polishing module. An auxiliary exhaust can be invoked to exhaust one or more particulates removed from the polishing module by the turbulence air flow. A purge air flow cycle can be performed by cycling the purge air flow and the auxiliary exhaust between on and off states. One or more purge air flow cycles can be performed during a main air flow cycle where laminar air flow is supplied into the polishing module and exhausted using a main exhaust. In this way, one or more particulates can be cleaned from the polishing module.