Patent ID: 7927921
Filing Date: 2011-04-19
Classification: H01L

Abstract:
1. A method for attaching semiconductor dice to leadframe die attach paddles, said method comprising the steps of: applying a non-conductive material to a back face of a semiconductor integrated circuit wafer, the semiconductor integrated circuit wafer comprising a plurality of integrated circuit dice; heating the semiconductor integrated circuit wafer and the non-conductive material thereon until the non-conductive material is hard cured; mounting the semiconductor integrated circuit wafer on a wafer carrier; wherein the hard cured non-conductive material is between the semiconductor integrated circuit wafer and the wafer carrier; separating each of the plurality of integrated circuit dice from each other; dispensing non-conductive adhesive on faces of die attach paddles of a plurality of leadframes; placing the plurality of integrated circuit dice into the non-conductive adhesive on the faces of respective ones of the die attach paddles; heating the plurality of integrated circuit dice and die attach paddles until the non-conductive adhesive is hard cured; attaching bond pads of the plurality of integrated circuit dice to respective conductive leads of the plurality of leadframes with bond wires; and separating each of the plurality of leadframes into integrated circuits.