Bonding composition, conductor bonding structure, and method for producing same

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United States of America Patent

PATENT NO 11931808
APP PUB NO 20210138541A1
SERIAL NO

17262924

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Abstract

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A bonding composition contains copper powder, a liquid medium, and a reducing agent. The reducing agent contains at least one amino group and a plurality of hydroxyl groups. The reducing agent has a boiling point that is higher than the boiling point of the liquid medium. The reducing agent has a melting point that is equal to or below the sintering temperature of the copper powder. Preferably, the reducing agent is bis(2hydroxyethyl)iminotris(hydroxymethyl)methane. Preferably, the bonding composition has a viscosity of from 10 Pa·s to 200 Pa·s at a shear rate of 10 s−1 at 25° C. Preferably, the bonding composition contains from 0.1 parts to 10 parts by mass of the reducing agent and from 10 parts to 40 parts by mass of the liquid medium with respect to 100 parts by mass of the copper powder.

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Patent Owner(s)

Patent OwnerAddress
MITSUI MINING & SMELTING CO LTD1-11-1 OSAKI SHINAGAWA-KU TOKYO 1418584 ?1418584

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Anai, Kei Ageo, JP 15 57
Yamauchi, Shinichi Ageo, JP 18 92

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