Patent ID: 6210548
Filing Date: 2001-04-03
Classification: C25F,H01L

Abstract:
An apparatus for removing plating films of a leadframe, comprising:a mask member having annular openings configured to substantially correspond with predetermined areas of said leadframe;a mask supporting means including:a plurality of outflow channels coupled with said annular openings, said plurality of outflow channels configured to introduce a film removing liquid,at least one film removing liquid outflow hole coupled to said plurality of outflow channels to direct said film removing liquid downwardly,a plurality of inflow channels for feeding said film removing liquid to said annular openings, anda housing groove for incorporating an insoluble cathode wire therein, said housing groove coupled to said plurality of inflow channels;a mechanism for supplying a power to said insoluble cathode wire; anda mechanism for masking and unmasking an upper surface of said leadframe.