Patent ID: 6590294
Filing Date: 2003-07-08
Classification: G01R

Abstract:
A method for fabricating a device for bump probing comprising the steps of:providing a semiconducting substrate; forming a first insulating material layer on said semiconducting substrate; depositing a first metal layer with a first metal and forming spaced-apart a first and a second electrode; depositing a second insulating material layer on top of said semiconducting substrate embedding said two spaced-apart electrodes; forming a via hole through said insulating material layer exposing a tip portion of said second electrode; depositing a second metal layer on top of said second insulating material layer and filling said via hole with a second metal forming an electrode support; depositing a third metal layer on top of said second metal layer; patterning said third metal layer into at least four finger tips; patterning said second metal layer into at least four fingers for supporting said at least four finger tips, said at least four fingers are in electrical communication with said electrode support and overhang said first electrode; and etching away said second insulating material layer to release said at least four fingers such that said at least four finger tips curve upwardly.