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. 23, 2015
Filed:
Dec. 27, 2013
Sokudo Co., Ltd., Kyoto, JP;
Abstract
After a developing step, a substrate is spun at high speeds without supplying a cleaning liquid to a surface of the substrate. This causes a large centrifugal force to act on a developer on a resist film. Consequently, the developer can be removed rapidly from the surface of the substrate. As a result, development can be stopped at an expected timing. Moreover, a circuit pattern having an expected dimension can be obtained. At this time, a dissolved product is also removable with the developer from the substrate. This can avoid failure in development caused by the dissolved product. Consequently, suitably maintained quality of negative development can be achieved with a reduced usage amount of the cleaning liquid.