Patent ID: 6498054
Filing Date: 2002-12-24
Classification: H01L

Abstract:
A method for underfilling a gap formed beneath a semiconductor chip mounted in a flip-chip manner over an underlying surface, the method comprising the steps of:preparing a dispensing needle having an outlet, wherein the outlet is slanted in shape; moving the dispensing needle having the slanted outlet in such a manner as to position the outlet of the dispensing needle at a corner point between an upper surface and sidewall of the semiconductor chip, wherein the outlet of the dispensing needle is made to face against the targeted corner point of the semiconductor chip when performing underfill; and injecting resin at the targeted corner point of the semiconductor chip, allowing the injected resin from the outlet of the dispensing needle to flow down along the sidewall of the semiconductor chip to an edge of a lower surface of the semiconductor chip and subsequently fill into the gap through capillary action.