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.

Date of Patent:
Jul. 14, 2020

Filed:

May. 23, 2017
Applicant:

Sakai Display Products Corporation, Sakai-shi, Osaka, JP;

Inventors:

Kohichi Tanaka, Osaka, JP;

Katsuhiko Kishimoto, Osaka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 26/352 (2014.01); B24B 49/12 (2006.01); H01L 21/304 (2006.01);
U.S. Cl.
CPC ...
B23K 26/3576 (2018.08); B24B 49/12 (2013.01); H01L 21/304 (2013.01);
Abstract

A method for producing a device support base in an embodiment according to the present disclosure includes step A of providing a support base having a first surface and a second surface parallel to the first surface; step B of forming a laser beam in a first direction parallel to the first surface of the support base; and step C of translating or rotating the laser beam in a second direction parallel to the first surface of the support base and crossing the first direction to remove at least a part of protruding portions or contamination elements on the first surface of the support base.


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