OPENTECHNICAL PUBLICATION
OT-2026-000000249

Flux and solder paste

Published: 2026-09-15T19:02:39.582262Z
Permanent URL: https://opentechnical.org/p/OT-2026-000000249
Categories: Manufacturing & Assembly Equipment > Joining and Welding

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ABSTRACT

The present invention employs a flux containing a resin component, an
activator, and a solvent. The resin component contains a copolymer (A) having
an alkene-derived repeating unit (a1), and an acrylic acid-derived repeating
unit (a2) in which a hydrogen atom bonded to a carbon atom at an α-position
may be substituted with a substituent, and contains a rosin (B). A mixing
ratio of the copolymer (A) and the rosin (B) is 1 or more as a mass ratio
represented by copolymer (A)/rosin (B).

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OpenTechnical publication OT-2026-000000249
Published 2026-09-15T19:02:39.582262Z
https://opentechnical.org/p/OT-2026-000000249