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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 10030174 B1

PDFFull Text
Date of Patent:
Jul. 24, 2018

Filed:

Mar. 26, 2014

Composite sheet for forming protective film

Applicant:

Lintec Corporation, Itabashi-ku, JP;

Inventors:

Hiroyuki Yoneyama, Nagareyama, JP;

Naoya Saiki, Koshigaya, JP;

Assignee:

LINTEC CORPORATION, Itabashi-ku, JP;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Frank D Ducheneaux

Int. Cl.
CPC ...
H01L 23/544 (2006.01); H01L 23/552 (2006.01); C09J 7/38 (2018.01); C09J 7/40 (2018.01); C09J 7/20 (2018.01); C09J 7/02 (2006.01); H01L 21/683 (2006.01); C09J 7/24 (2018.01);
U.S. Cl.
CPC ...
C09J 7/0275 (2013.01); C09J 7/20 (2018.01); C09J 7/243 (2018.01); H01L 21/6836 (2013.01); C09J 7/38 (2018.01); C09J 7/40 (2018.01); C09J 2201/606 (2013.01); C09J 2201/622 (2013.01); C09J 2203/326 (2013.01); H01L 23/544 (2013.01); H01L 23/552 (2013.01); H01L 2221/68327 (2013.01); H01L 2221/68377 (2013.01); H01L 2223/54433 (2013.01); H01L 2924/0002 (2013.01);
Abstract

A protective film-forming composite sheetcomprises a pressure sensitive adhesive sheetin which a pressure sensitive adhesive layeris provided on a base material, a protective film-forming film, and a release film. When α (mN/25 mm) represents the maximum peel force between the protective film-forming filmand the release film; β (mN/25 mm) represents the minimum peel force between the pressure sensitive adhesive sheetand the protective film-forming film; and γ (mN/25 mm) represents the maximum peel force between the pressure sensitive adhesive sheetand the protective film-forming film, the following relationships (1) to (3) hold for α, β, and γ;β≥70  (1)α/β≤0.50  (2)γ≤2000  (3).

Find Patent Forward Citations

Yoneyama, Hiroyuki. (2018). Composite sheet for forming protective film (U.S. Patent No. 10030174). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10030174

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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