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:
Dec. 08, 2009
Filed:
Jun. 04, 2004
Itsuo Watanabe, Shimodate, JP;
Tohru Fujinawa, Tsukuba, JP;
Motohiro Arifuku, Kuki, JP;
Houko Kanazawa, Tsukuba, JP;
Atsushi Kuwano, Tsukuba, JP;
Itsuo Watanabe, Shimodate, JP;
Tohru Fujinawa, Tsukuba, JP;
Motohiro Arifuku, Kuki, JP;
Houko Kanazawa, Tsukuba, JP;
Atsushi Kuwano, Tsukuba, JP;
Hitachi Chemical Company, Ltd., Tokyo, JP;
Abstract
A circuit terminal connected structure and a circuit terminal connecting method are provided. Both the structure and the method feature a circuit connecting material formulated with the following components: a curing agent capable of generating free radicals upon heating; an acrylate or methacrylate radical polymerizable substance; and either an acrylic rubber or a maleimide radical polymerizable substance having at least two maleimide groups per molecule. In some embodiments, the curing agent features a 10-hour half life temperature of 40° C. or above and a 1-minute half-life temperature of 180° C. or below. In other embodiments, the circuit connecting material includes conductive particles. In additional embodiments, the circuit connecting material includes a hydroxyl-group-containing resin having a weight average molecular weight of 10,000 or more.