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:
Sep. 22, 2015
Filed:
Sep. 27, 2012
Masahiro Miyagi, Kyoto, JP;
Kazunori Fujikawa, Kyoto, JP;
Masahiro Miyagi, Kyoto, JP;
Kazunori Fujikawa, Kyoto, JP;
SCREEN Holdings Co., Ltd., , JP;
Abstract
In a substrate processing apparatus, an anti-static liquid supply part supplies the anti-static liquid having electrical resistivity higher than that of an SPM liquid onto a substrate to puddle an entire upper surface of the substrate with the anti-static liquid, to thereby gradually remove static electricity from the substrate. Then, the processing liquid supply part supplies the SPM liquid onto the substrate to thereby perform an SPM process. In the SPM process, it is thereby possible to prevent a large amount of electric charges from rapidly moving from the substrate to the SPM liquid and prevent any damage to the substrate. Further, by maintaining the electrical resistivity of the anti-static liquid at the target electrical resistivity, it is possible to increase the static elimination efficiency of the substrate and shorten the time required for the static elimination process within the limits of causing no damage to the substrate.