Patent ID: 8435867
Filing Date: 2013-05-07
Classification: H01L

Abstract:
1. A method of manufacturing a semiconductor device, comprising the steps of: (a) providing a semiconductor package including a first sealing body for sealing a semiconductor chip, a plurality of leads exposed from the first sealing body, a dam bar formed integrally with the leads, and a second sealing body formed in a region surrounded by the first sealing body, the leads, and the dam bar; (b) removing part of the dam bar and part of the second sealing body with a mechanical cutter; (c) after the step (b), irradiating the other part of the second sealing body with a laser beam to remove the other part of the second sealing body; (d) after the step (c), washing a surface of each of the leads; and (e) after the step (d), forming a plating film on the surface of each of the leads.