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:
Jun. 04, 2013
Filed:
Aug. 05, 2010
Kosuke Yoshihara, Koshi, JP;
Yusuke Yamamoto, Koshi, JP;
Kosuke Yoshihara, Koshi, JP;
Yusuke Yamamoto, Koshi, JP;
Tokyo Electron Limited, Tokyo, JP;
Abstract
A resist solution supply apparatus of the present invention includes: a resist solution supply source storing a resist solution therein; a supply tube for supplying the resist solution from the resist solution supply source to a coating nozzle; a filter provided in the supply tube for removing foreign matter in the resist solution; and a heating unit provided along the supply tube at a position closer to the resist solution supply source than the filter, for heating the resist solution in the supply tube to a predetermined temperature higher than room temperature to make a resist gel to aggregate to become coarse so that the coarse resist gel can be collected and removed by the filter.