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:
May. 29, 2001
Filed:
Aug. 26, 1998
Tetsuya Sada, Kumamoto-ken, JP;
Tetsu Kawasaki, Yamanashi-ken, JP;
Mitsuhiro Sakai, Kumamoto-ken, JP;
Takeshi Tsukamoto, Kumamoto-ken, JP;
Tokyo Electron Limited, Tokyo, JP;
Abstract
A method of processing a substrate for removing a coating film from a substrate by dissolving the coating film with a solvent, comprising the steps of (a) supplying a solvent independently to each of peripheral portions of an upper surface side and a lower surface side of the substrate, and (b) supplying the solvent to the peripheral portion of the lower surface side of the substrate in an amount lower than the solvent supplied to the peripheral portion of the lower surface side in the step (a) or lower than that supplied to the peripheral portion of the upper surface side in this step (b), or terminating a supply of the solvent.