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:
Apr. 16, 2024

Filed:

Jun. 16, 2021
Applicant:

Mitsui Mining & Smelting Co., Ltd., Tokyo, JP;

Inventors:

Yoshinori Matsuura, Ageo, JP;

Takenori Yanai, Ageo, JP;

Rintaro Ishii, Ageo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/12 (2020.01); H01L 21/48 (2006.01); H01L 21/66 (2006.01); H01L 23/498 (2006.01); H01L 21/683 (2006.01);
U.S. Cl.
CPC ...
H01L 22/14 (2013.01); G01R 31/129 (2013.01); H01L 21/4857 (2013.01); H01L 23/49822 (2013.01); H01L 21/6835 (2013.01); H01L 2221/68359 (2013.01);
Abstract

There is provided a laminated sheet with which the electrical inspection of a redistribution layer formed later can be efficiently performed, while the laminated sheet is in the form of a sheet useful for the formation of a redistribution layer. This laminated sheet includes a carrier with a release function; a first electrically conductive film provided on the carrier with the release function; an insulating film provided on the first electrically conductive film; and a second electrically conductive film provided on the insulating film. The second electrically conductive film is used for formation of a redistribution layer, and the first electrically conductive film, the insulating film, and the second electrically conductive film function as a capacitor for performing electrical inspection of the redistribution layer.


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