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US 11,590,614 B2Granted
Flux and solder paste
AssigneeSenju Metal Industry Co., Ltd.
InventorsAyaka Shirakawa, Hiroshi Sugii, Atsumi Takahashi, Daisuke Maruko, Hiroyoshi Kawasaki, Masato Shiratori
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Abstract
A flux comprising an organic acid; a solvent; and polyoxyethylene behenyl alcohol having an average number of moles of ethylene oxide added of 7 to 40 mol.
Claims4
A flux comprising:
- an organic acid;
- a solvent;
- polyoxyethylene behenyl alcohol having an average number of moles of ethylene oxide added of 7 to 40 mol;
- and
- one or more ingredients selected from the group consisting of a rosin-based resin, an amine, an amine hydrohalide, and an organic halogen compound, wherein
- a content of the organic acid is 1 to 10% by mass based on the whole of the flux,
- a content of the solvent is more than 0 and 80% by mass or less based on the whole of the flux,
- a content of the polyoxyethylene behenyl alcohol is 5 to 20% by mass based on the whole of the flux,
- a content of the rosin-based resin is 5% by mass or less based on the whole of the flux,
- a content of the amine is 0 to 65% by mass based on the whole of the flux,
- a content of the amine hydrohalide is 0 to 5% by mass based on the whole of the flux, and
- a content of the organic halogen compound is 0 to 5% by mass based on the whole of the flux.
9 more elements
Dependencies are inferred from the claim text.