Patent ID: 6426638
Filing Date: 2002-07-30
Classification: G01R

Abstract:
A probe for making electrical connection to contact pads on microelectronic devices, said probe comprising:(a) a sheet of conductive material with a main body having a first and a second end, said main body acting as a torsional spring; (b) a rigid substrate with a top and a bottom surface; (c) at least one first rigid electrically conductive post supporting said first end of said main body above said top surface of said substrate; (d) at least one second rigid electrically conductive post supporting said second end of said main body above said top surface of said substrate; (e) an arm of said sheet extending away from said main body; and (f) an electrically conductive tip structure with a base disposed on said top surface of said arm distal from said main body and a tip point extending away from said top surface of said arm, wherein a bias of said conductive tip toward said substrate causes substantial torsional distortion of said main body of said sheet.