Patent ID: 6541702
Filing Date: 2003-04-01
Classification: H01L,Y10T

Abstract:
A method of manufacturing a semiconductor device comprising the steps of:providing a semiconductor chip which is formed with semiconductor elements and a plurality of electrodes on its principal surface; providing a lead frame having a frame member, a die pad and a plurality of leads, the die pad and the leads being supported by the frame member; mounting the semiconductor chip through an adhesive onto the die pad; electrically connecting the plurality of electrodes with the plurality of leads by a plurality of conductive wires, respectively; encapsulating the semiconductor chip, the die pad, inner portions of the plurality of leads and the plurality of wires with a sealing body; and forming outer portions of the plurality of leads, which are protruding outwardly from the sealing body, into a gull-wing shape having a first part which extends in a direction away from the sealing body, a second part which bends downwards from the first part, a third part which extends from the second part in a direction away from the sealing body, a first bent portion formed between the first part and the second part and a second bent portion formed between the second part and the third part, wherein the first bent portion has a width equal to or greater than a thickness of the lead, wherein the third part has a width less than a thickness of the lead, and wherein the plurality of leads are arrayed in a width direction of the leads.