ELIMINATING METHOD OF RESIDUAL MATERIALS DEPOSITED ON SUBSTRATE BY SOLDER WITH ROSIN FLUX

摘要

PROBLEM TO BE SOLVED: To effectively eliminate residual materials, disposed on a substrate by solder using rosin flux on the substrate, from the substrate with organic solvent without leaving a layer formed by materials consisting of organic solvent to be used, without mechanically deteriorating the substrate and needless to say without destroying global environment. SOLUTION: An organic solvent, consisting of ketone or alcohol which don't include halogen and detergent, is sprayed on the substrate through a nozzle in the air.