METHOD FOR SOLDERING AN ELECTRICAL PRODUCT

摘要

A method for soldering an electrical product with a soldering flux, wherein an aqueous dispersion or an organic solvent solution of a compound containing a polyfluoroalkyl or polyfluoroether group having from 4 to 21 carbon atoms is applied to a peripheral portion around the soldering portion and dried to form a coating of said compound so as to prevent the soldering flux from penetrating to or depositing on said peripheral portion.