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. 04, 2021
Filed:
Dec. 05, 2018
Applicant:
Mitsubishi Electric Corporation, Tokyo, JP;
Inventors:
Assignee:
Mitsubishi Electric Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/26 (2020.01); G01R 31/12 (2020.01); G01R 31/16 (2006.01);
U.S. Cl.
CPC ...
G01R 31/1218 (2013.01); G01R 31/16 (2013.01); G01R 31/2642 (2013.01);
Abstract
An insulating substrate inspecting method includes bringing a lower electrode into contact with lower metal of an insulating substrate including an insulating layer, the lower metal in contact with a lower surface of the insulating layer, and upper metal in contact with an upper surface of the insulating layer, and bringing an upper electrode into contact with the upper metal, and applying an AC voltage to the lower electrode and the upper electrode to detect electromagnetic waves generated at a defect in the insulating layer.