Patent ID: 6677181
Filing Date: 2004-01-13
Classification: H01L,Y10T

Abstract:
A method for fabricating a stack package comprising thc steps of:providing a first lead frame having a first inner lead and a second lead frame having both a second inner lead and an outer lead; attaching the first and second lead frames to bonding-pad-disposed faces of at least two semiconductor chips where bonding pads are arranged along a center line of each bonding-pad-disposed face; electrically connecting the bonding pads of the respective semiconductor chips and the first and second inner leads of their corresponding lead frames by means of metal wires; coating a conductive adhesive at interfaces between outer ends of the lead frames having only the inner lead and selected portions of the lead frames having both the inner and outer leads, and pressing the lead frames in contact with each other at a temperature of the melting point of the conductive adhesive thereby electrically connecting the respective lead frames; molding the entire resultant structure produced by the above steps with the epoxy compound so as to expose the first innder lead and the outer lead; sawing dam bars of the respective lead frames; and forming the outer lead which is exposed from the epoxy compound in a selected shape.