Patent ID: 6655983
Filing Date: 2003-12-02
Classification: G01R

Abstract:
An electrical test probe comprising:a plurality of conductive needle-like elements which are arranged along a plurality of rows that are perpendicular to the needle-like elements; a wiring plate supporting the needle-like elements that protrude in an axial direction; and signal-transmitting wires each of which is provided to one of said plural needle-like elements for transmitting to an outside circuit an electrical signal that is retrieved by bringing a protruded end of the needle-like element into contact with a device to be tested; wherein (a) each of said signal-transmitting wires is a single wire with a circular cross section; (b) each of said signal-transmitting wires has an end at an electrical-signal-input side thereof, wherein said end is circular in cross section and by said end the electrical-signal-input side is brought into contact with the associated conductive needle-like element; (c) each of said signal-transmitting wires has a flat portion which protrudes in a diametrical direction of said signal-transmitting wire and is formed on the wire at a portion that is spaced from said end of the electrical-signal-input side; (d) said flat portion is directly accepted in said wiring plate; and (e) an end of said wiring plate is open at a diameter large enough to allow the signal-transmitting wire to pass through but small enough to prevent extraction of the flat portion thereof.