Patent ID: 6323062
Filing Date: 2001-11-27
Classification: H01L

Abstract:
A method for providing an underfill material on an integrated circuit chip which comprises the steps of:a) providing a wafer containing at least one integrated circuit chip, the integrated circuit chip having at least one solder bump provided on an exposed surface thereof;b) affixing the wafer to an expandable carrier substrate in a manner such that the bumped surface of the integrated circuit chip is exposed;c) cutting the wafer in a manner which defines edges on said at least one integrated circuit chip, the cutting being of a depth which does not cut the carrier substrate;d) expanding the carrier substrate in a manner which singulates said at least one integrated circuit chip, the singulation forming channels which surround the integrated circuit chip;e) providing an underfill material on the bumped surface of the integrated circuit chip and in the channels defined by the edges of the integrated circuit chip; andf) cutting the underfill contained in the channels to thereby define at least one bumped integrated circuit chip having an underfill material provided on its bumped surface and surrounding its edges.