Patent ID: 6165819
Filing Date: 2000-12-26
Classification: H01L,H05K,Y02P

Abstract:
A method of producing a semiconductor device comprising:a device body producing step, electrically coupling leads and a semiconductor chip, and producing a device body by encapsulating the semiconductor chip by a resin package so that portions of the leads are exposed from the resin package;a honing step, carrying out a honing process using a polishing solution at least with respect to a resin flash adhered on the portions of the leads exposed from the resin package;an etching step, removing an unwanted stacked layer structure formed on the leads by carrying out an etching process after said honing step; anda plating step, carrying out a plating process with respect to the leads after said etching step to form a plated layer made of a soft bonding material,said honing step removing a portion of the unwanted stacked layer structure in addition to the resin flash.