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US 12,755,860 B2Granted
Cu—Ag alloy wire and method for producing the same
AssigneeSWCC Corporation
InventorsGo Odachi, Rikuya Watanabe, Ryuichi Arai
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Abstract
An object of the present invention is to provide a Cu—Ag alloy wire that has satisfactory hardness and specific resistance both suitable for probe pins. A Cu—Ag alloy wire that achieves the above object contains 0.1 to 30 mass % of Ag, with a remainder composed of Cu and unavoidable impurities. The Cu—Ag alloy wire has a Vickers hardness of 300 HV or more and a specific resistance of 3.0μΩ·cm or less.
Claims4
A Cu—Ag alloy wire, comprising:
- 0.1 to 30 mass % of Ag, with a remainder composed of Cu and unavoidable impurities, wherein
- the Cu—Ag alloy wire has a Vickers hardness of 300 HV or more and a specific resistance of 3.0 μΩ·cm or less,
- the Cu—Ag alloy wire has a radius of curvature of 300 mm or more,
- the Cu—Ag alloy wire has a tensile strength of 1680 MPa or more,
- the Cu—Ag alloy wire has an electrical conductivity of 62.5% IACS or more, and
- wherein the radius of curvature is calculated using a digital microscope by selecting three points on the Cu—Ag alloy wire and finding the radius of the circle passing through them.
3 more elements
Dependencies are inferred from the claim text.