METHOD FOR MANUFACTURING LEAD FRAME AND LEAD FRAME THEREOF

摘要

PURPOSE: A method for manufacturing a lead frame and the lead frame thereof are provided to be capable of removing particles at the lead frame by using supersonic waves. CONSTITUTION: An electro cleaning process is carried out at the surface of a thin plate(20). An electro polishing process is then carried out at the thin plate(40). The particles generated at the thin plate while carrying out the electro polishing process, are removed(50). A cleaning process is carried out at the thin plate by using an acid solution(60). A multi-plating layer is formed at the thin plate(70). At this time, the particles are removed by supplying supersonic waves for 3-7 second in a predetermined solution.