Patent ID: 6482676
Filing Date: 2002-11-19
Classification: H01L

Abstract:
A method of mounting a semiconductor chip part on a substrate, comprising the steps of:providing a plurality of conductive bumps on a plurality of pads, the conductive bumps each having an upper step portion and a lower step portion larger in volume than the upper step portion; flattening the upper step portion of the conductive bumps formed on the plurality of pads of said semiconductor chip part by press-contacting said conductive bumps with a flattening tool member; and pressurizing said semiconductor chip part on said substrate such that said pads are aligned with lands formed on said substrate correspondingly to said pads; wherein a pressurizing force used at said pressurizing step is larger than a press-contact force used at said flattening step, thereby plastically deforming said upper step portions and said lower step portions of said bumps.