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:
Oct. 22, 2019
Filed:
Apr. 22, 2016
Hitachi Chemical Company, Ltd., Tokyo, JP;
Takashi Naito, Tokyo, JP;
Shinichi Tachizono, Tokyo, JP;
Kei Yoshimura, Tokyo, JP;
Yuji Hashiba, Tokyo, JP;
Kiyomi Nakamura, Tokyo, JP;
Taigo Onodera, Tokyo, JP;
Takuya Aoyagi, Tokyo, JP;
Tatsuya Miyake, Tokyo, JP;
HITACHI CHEMICAL COMPANY, LTD., Tokyo, JP;
Abstract
It is an objective of the invention to provide a conductive joint article exhibiting electrical joinability comparable to that of solder joining of easy-to-solder joinable metals even when a joined member of the conductive joint article is made of a hard-to-solder joinable metal. There is provided a conductive joint article with conductive joined members electrically joined via a joining layer, at least one of the joined members being made of a hard-to-solder joinable metal. The joining layer comprises an oxide glass phase and a conductive metal phase. The oxide glass phase includes vanadium as a major constituent and at least one of phosphorus, barium and tungsten as an accessory constituent, and has a glass transition point of 390° C. or less. And, connection resistance between the joined members exhibits less than 1×10Ω/mm.