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. 11, 2023
Filed:
Dec. 02, 2022
Applicant:
Beijing University of Technology, Beijing, CN;
Inventors:
Assignee:
BEIJING UNIVERSITY OF TECHNOLOGY, Beijing, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B 11/02 (2006.01); H01L 21/67 (2006.01); G01B 11/30 (2006.01); G01M 5/00 (2006.01); G01M 99/00 (2011.01); G01N 3/56 (2006.01);
U.S. Cl.
CPC ...
G01B 11/02 (2013.01); G01B 11/026 (2013.01); G01B 11/30 (2013.01); G01M 5/0033 (2013.01); G01M 5/0041 (2013.01); G01M 99/002 (2013.01); G01N 3/56 (2013.01); H01L 21/67259 (2013.01); H01L 21/67288 (2013.01);
Abstract
Disclosed are a device and a method for measuring a fretting displacement in a power cycling of a press-pack insulated gate bipolar transistor (IGBT). The IGBT includes: a bracket; slide bars slidably mounted on the bracket and are arranged at least four along a circumferential direction of the bracket; sensors respectively slidably installed on the bracket and the slide bars; and a power cycling experiment device arranged inside the bracket.