Patent ID: 6617863
Filing Date: 2003-09-09
Classification: G01R,H05K

Abstract:
A probing device for electrically contacting a plurality of electrodes aligned on an object to be tested so as to transfer electrical signals therewith comprising:a wiring sheet formed by aligning, on at least one surface of a flexible insulator sheet, a plurality of contact electrodes corresponding to each of said electrodes on the object to be tested, each of said contact electrodes being formed with a plurality of projecting tip portions, said tip portions being formed by etching a conductor film mounted on said flexible insulator sheet, said wiring sheet having extension wiring electrically connected to each of said contact electrodes, being formed either on said one surface or an opposite surface of said flexible insulator sheet; and means which applies contacting pressure to said wiring sheet to obtain electrical conduction between said extension wiring and said object to be tested whereby said plurality of projecting tip portions of each of said contact electrodes contact and form an electrical connection with an electrode on said object to be tested.