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:
Jul. 26, 2016
Filed:
Jul. 20, 2015
Screen Holdings Co., Ltd., Kyoto, JP;
Kenichiro Arai, Kyoto, JP;
Kazunari Nada, Kyoto, JP;
SCREEN Holdings Co., Ltd., , JP;
Abstract
A substrate treatment method includes the steps of: supporting a substrate with a support member; arranging an extension surface such that the extension surface laterally surrounds one major surface of the substrate supported by the support member and extends continuously to the major surface of the substrate supported by the support member; rotating the substrate supported by the support member; and etching the substrate by supplying an etching liquid onto the major surface of the substrate supported by the support member, wherein the extension surface has higher affinity for the etching liquid than the major surface of the substrate supported by the support member.