SPRING WIRE, CONTACT PROBE, AND PROBE UNIT

Provided herein are a spring wire rod that can ensure conductivity capable of dealing with a high-frequency signal having a frequency of equal to or higher than 1 GHz while ensuring a spring characteristic, a contact probe using the spring wire rod, and a probe unit using the contact probe. The spri...

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Bibliographische Detailangaben
Hauptverfasser:	ISHIKAWA, SHIGEKI, KAZAMA, TOSHIO
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	APPARATUS THEREFOR BASIC ELECTRIC ELEMENTS BLASTING CHEMISTRY CURRENT COLLECTORS ELECTRICITY ELECTROFORMING ELECTROLYTIC OR ELECTROPHORETIC PROCESSES ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING LINE CONNECTORS MEANS FOR DAMPING VIBRATION MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES MECHANICAL ENGINEERING METALLURGY PHYSICS PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS SHOCK-ABSORBERS SPRINGS TESTING THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	Provided herein are a spring wire rod that can ensure conductivity capable of dealing with a high-frequency signal having a frequency of equal to or higher than 1 GHz while ensuring a spring characteristic, a contact probe using the spring wire rod, and a probe unit using the contact probe. The spring wire rod includes a wire core that is made of a conductive material having an electrical resistivity of equal to or slower than 5.00 × 10 -8 ©¢m, and a coating member 3 that is made of a spring material having a longitudinal elastic modulus of equal to or higher than 1.00 × 10 4 kgf/mm 2 and coats an outer circumference of the core. A coating thickness d of the coating member is smaller than a minimum value r of a distance between the center of gravity of a transverse cross section of the core and the outer edge of the transverse cross section.