Probe pin material including Ag—Pd—Cu-based alloy

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United States of America Patent

PATENT NO 11807925
APP PUB NO 20230250513A1
SERIAL NO

17982092

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Abstract

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A probe pin material including a Ag—Pd—Cu-based alloy essentially including Ag, Pd and Cu, B as a first additive element, and at least any element of Zn, Bi and Sn, as a second additive element. A concentration of the first additive element is 0.1 mass % or more and 1.5 mass % or less, and a concentration of the second additive element is 0.1 mass % or more and 1.0 mass % or less. A Ag concentration, a Pd concentration and a Cu concentration in the Ag—Pd—Cu-based alloy are required as follows: a Ag concentration (SAg), a Pd concentration (SPd) and a Cu concentration (SCu) converted as given that a Ag—Pd—Cu ternary alloy is formed from only such three elements all fall within a predetermined range in a Ag—Pd—Cu ternary system phase diagram. The probe pin material is excellent in resistance value and hardness/wear resistance, and also is enhanced in bending resistance.

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Patent Owner(s)

Patent OwnerAddress
TANAKA KIKINZOKU KOGYO K K7-3 MARUNOUCHI 2-CHOME CHIYODA-KU TOKYO 100-6422

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fuse, Takeshi Isehara, JP 24 325
Kouno, Shinji Isehara, JP 7 22
Sagae, Takeyuki Isehara, JP 10 139
Shima, Kunihiro Isehara, JP 22 48

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