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. 23, 2025
Filed:
Jul. 21, 2023
Senju Metal Industry Co., Ltd., Tokyo, JP;
Tsuyoshi Masaki, Tokyo, JP;
Tetsu Takemasa, Tokyo, JP;
Kazuyori Takagi, Tokyo, JP;
Tomoko Nagai, Tokyo, JP;
Yutaka Hashimoto, Tokyo, JP;
Nanako Miyagi, Tokyo, JP;
Mutsuki Kaneko, Tokyo, JP;
Megumi Hayakawa, Tokyo, JP;
Ryo Saito, Tokyo, JP;
SENJU METAL INDUSTRY CO., LTD., Tokyo, JP;
Abstract
A flux containing rosin, a solvent, a thixotropic agent, a thiol compound, and an activator, in which the thiol compound includes a compound (Tp) having a benzenethiol skeleton in which one or more hydrogen atoms on a benzene ring are substituted with a mercapto group (—SH), is provided in the present invention. As the compound (Tp), at least one thiol compound selected from the group consisting of 2-aminobenzenethiol, 4-aminobenzenethiol, 3-aminobenzenethiol, and benzenethiol is preferable. According to such flux, a change in viscosity of the solder paste with time can be further suppressed.