Patent ID: 8716069

Claim:
A method of manufacturing a semiconductor device comprising: providing a lead-frame including a plurality of chip mounting units, each of which comprises at least a die paddle and a plurality of pins arranged close to the die paddle; forming a metal layer on the respective surface of the die paddle and the pins; attaching a semiconductor chip on a front side of the die paddle; electrically connecting each bonding pad arranged on a front side of the semiconductor chip to a bonding part of the corresponding pin close to the die paddle by an interconnection structure; forming a plastic package body covering the front side of the die paddle, the semiconductor chip, the interconnection structure and the bonding part of the pins, wherein the metal layer at the backside of the die paddle exposes out of the plastic package body; removing the metal layer at the backside of the die paddle; and forming a passivation layer at the backside of the die paddle.