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. 21, 2019
Filed:
Jan. 30, 2018
Applicant:
Disco Corporation, Tokyo, JP;
Inventors:
Assignee:
Disco Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/68 (2006.01); B65H 35/00 (2006.01); G01R 5/06 (2006.01); G01L 5/06 (2006.01); H01L 21/683 (2006.01);
U.S. Cl.
CPC ...
B65H 35/0033 (2013.01); G01L 5/06 (2013.01); H01L 21/6836 (2013.01);
Abstract
A determining method for determining whether or not the tension of an adhesive tape constituting a frame unit is proper, in which a plate-shaped workpiece and an annular frame are attached to the adhesive tape to form the frame unit, is provided. The adhesive tape is composed of a base layer and an adhesive layer formed on the base layer. The determining method includes a supporting step, a downward amount measuring step, and a determining step.