Patent ID: 7656176
Filing Date: 2010-02-02
Classification: G01R

Abstract:
1. A probe member for wafer inspection comprising a sheet-like probe, which includes a frame plate made of a metal, in which a plurality of openings are formed corresponding to electrode regions, in which electrodes to be inspected in all or part of integrated circuits formed on a wafer, which is an object of inspection, and a plurality of contact films arranged on and supported by a front surface of the frame plate so as to close the respective openings, each of the contact films are obtained by arranging, in an insulating film formed of a flexible resin, a plurality of electrode structures each formed by linking a front-surface electrode part exposed to a front surface of the insulating film to a back-surface electrode part exposed to a back surface thereof through a short circuit part extending in a thickness-wise direction of the insulating film in accordance with a pattern corresponding to the electrodes to be inspected, and an anisotropically conductive connector, which is composed of another frame plate, in which a plurality of openings have been formed corresponding to the electrode regions, and a plurality of elastic anisotropically conductive films arranged on and supported by the another frame plate so as to close the respective openings, the anisotropically conductive connector is arranged on a back surface of the sheet-like probe, wherein each of the openings of the frame plate in the sheet-like probe have a size capable of receiving the external shape in a plane direction in the elastic anisotropically conductive film of the anisotropically conductive connector.