Patent ID: 6455350
Filing Date: 2002-09-24
Classification: H01L

Abstract:
A method of manufacturing a ball grid array semiconductor package comprising the steps of:providing a substrate, wherein said substrate comprises a first surface and a second surface and said first surface or said second surface comprises a conductor pattern; disposing a plurality of conductive bumps on said first surface of said substrate; attaching a semiconductor die to said second surface of said substrate; electrically connecting said conductive bumps to said conductor pattern, wherein electrically connecting said conductive bumps to said conductor pattern mechanically affixes said conductive bumps to said first surface of said substrate; mechanically testing said ball grid array semiconductor package, wherein the step of mechanically testing said ball grid array semiconductor package comprises the step of determining whether a height of said conductive bumps is substantially uniform; and planarizing said conductive bumps when the height of at least one of said conductive bumps is non-uniform relative to the height of at least one other of said conductive bumps.