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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.:

US 10166580 B1

PDFFull Text
Date of Patent:
Jan. 01, 2019

Filed:

Jan. 22, 2016

Aluminum foil, electronic device, roll-to-roll aluminum foil, and method of producing aluminum foil

Applicant:

Toyo Aluminium Kabushiki Kaisha, Osaka-shi, Osaka, JP;

Inventors:

Akira Shingu, Osaka, JP;

Mitsunari Ooyagi, Osaka, JP;

Assignee:

TOYO ALUMINIUM KABUSHIKI KAISHA, Osaka-Shi, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Thinh T Nguyen

Int. Cl.
CPC ...
H01L 23/12 (2006.01); H01L 21/00 (2006.01); B21B 1/40 (2006.01); C22C 21/00 (2006.01); H01L 31/0224 (2006.01); H01L 51/52 (2006.01); H01L 51/00 (2006.01); H01B 1/02 (2006.01); H01B 13/00 (2006.01); H01L 31/0392 (2006.01); B21B 3/00 (2006.01); H01L 23/00 (2006.01);
U.S. Cl.
CPC ...
B21B 1/40 (2013.01); C22C 21/00 (2013.01); H01B 1/023 (2013.01); H01B 13/0036 (2013.01); H01L 31/022425 (2013.01); H01L 31/0392 (2013.01); H01L 51/0021 (2013.01); H01L 51/5206 (2013.01); H01L 51/5221 (2013.01); B21B 2003/001 (2013.01); H01L 24/50 (2013.01); H01L 2251/301 (2013.01); H01L 2924/01029 (2013.01); H01L 2924/01079 (2013.01);
Abstract

An aluminum foil includes a first main surface and a second main surface located opposite to the first main surface. In at least one of the first main surface and the second main surface, a surface roughness Ra is not more than 10 nm, a surface roughness Rz is not more than 40 nm in each of a rolling direction and a direction perpendicular to the rolling direction, and the number of peak counts is not less than 10 when a reference length is 40 μm, the number of peak counts being determined from a roughness curve in at least one of the rolling direction and the direction perpendicular to the rolling direction.

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