| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a soldering flux which can sufficiently suppress the occurrence of dewetting and a solder bridge in soldering, provided that even a lead-free solder is used. <P>SOLUTION: The soldering flux includes a rosin resin, an activator and a solvent. The activator includes: (A) an amine hydrochloric acid; (B) an alicyclic polyvalent carboxylic acid or anhydride thereof; (C) an alicyclic structure-free halogenated carboxylic acid anhydride; (D) a pyrazole compound; and (E) a piperidine complex salt. <P>COPYRIGHT: (C)2013,JPO&INPIT |
