| 摘要 |
A soft soldering flux based on organic carboxylic acids is particularly suitable for the production of electronic and electrical components. Its reduced solids content (e.g. 6 %) makes it specially suited to SMT manufacturing and in-circuit tests. To this end, alkylfluorinated alcohols of formula Rf-CH2-CH2-OH, alicyclic and aromatic mono-, di-, or polycarboxylic acids with at least one carbon ring or their derivatives are introduced, using aliphatic mono-, di-, poly-, keto- or hydroxy carboxylic acids and quaternary ammonium salts. |
