Alloy material, contact probe, and connection terminal

Patent metadata

Field	Value
Publication number	US-9804198-B2
Application number	US-201314418964-A
Country	US
Kind code	B2
Filing date	Aug 2, 2013
Priority date	Aug 3, 2012
Publication date	Oct 31, 2017
Grant date	Oct 31, 2017

Abstract

An alloy material includes: a composition containing 17 at % to 25 at % of silver (Ag), 30 at % to 45 at % of palladium (Pd), and 30 at % to 53 at % of copper (Cu) in a composition range of a ternary alloy of Ag, Pd, and Cu; and at least one of manganese (Mn), tin (Sn), silicon (Si), antimony (Sb), titanium (Ti) and magnesium (Mg) added to the composition in a range of 4.5 at % or less, and the Mn in a range of 0.5 at % to 3.5 at %, the Sn in a range of 1 at % to 2 at %, the Si in a range of 0.5 at % to 2 at %, the Sb in a range of 0.5 at % to 3 at %, the Ti in a range of 0.5 at % to 2 at %, and the Mg in a range of 0.5 at % to 3.5 at % are added to the composition.

First claim

The invention claimed is:

1. An alloy material, consisting of:
a composition containing 17 at % to 25 at % of silver (Ag), 30 at % to 45 at % of palladium (Pd), and 30 at % to 53 at % of copper (Cu) in a composition range of a ternary alloy of Ag, Pd, and Cu; and
at least one of manganese (Mn), tin (Sn), silicon (Si), antimony (Sb), titanium (Ti) and magnesium (Mg) added to the composition in a range of 4.5 at % or less,
wherein the Mn in a range of 0.5 at % to 3.5 at %, the Sn in a range of 1 at % to 2 at %, the Si in a range of 0.5 at % to 2 at %, the Sb in a range of 0.5 at % to 3 at %, the Ti in a range of 0.5 at % to 2 at %, and the Mg in a range of 0.5 at % to 3.5 at % are added to the composition, and
one of iridium (Ir), ruthenium (Ru) and a combination of Ir and Ru is further added in an amount of 0.01 at % to 0.05 at %.

2. The alloy material according to claim 1 , wherein Vickers hardness is HV 480 to 560 after heating at 300° C. to 450° C. and aging.

3. A conductive contact probe contacting with each of contact targets at both ends in a longitudinal direction,
at least part of which is formed using an alloy material, consisting of:
a composition containing 17 at % to 25 at % of silver (Ag), 30 at % to 45 at % of palladium (Pd), and 30 at % to 53 at % of copper (Cu) in a composition range of a ternary alloy of Ag, Pd, and Cu; and
at least one of manganese (Mn), tin (Sn), silicon (Si), antimony (Sb), titanium (Ti) and magnesium (Mg) added to the composition in a range of 4.5 at % or less,
wherein the Mn in a range of 0.5 at % to 3.5 at %, the Sn in a range of 1 at % to 2 at %, the Si in a range of 0.5 at % to 2 at %, the Sb in a range of 0.5 at % to 3 at %, the Ti in a range of 0.5 at % to 2 at %, and the Mg in a range of 0.5 at % to 3.5 at % are added to the composition, and
one of iridium (Ir), ruthenium (Ru) and a combination of Ir and Ru is further added in an amount of 0.01 at % to 0.05 at %.

4. The conductive contact probe according to claim 3 , consisting of:
a first conductive plunger contacting with one of contact targets at one end;
a second conductive plunger contacting with other one of the contact targets at the other end; and
a coil spring arranged between the first plunger and the second plunger so as to elastically connect the first and the second plungers with each other,
wherein at least one of the first plunger, the second plunger, and the coil spring consists of the alloy material.

5. The conductive contact probe according to claim 4 , wherein Vickers hardness is HV 480 to 560 after heating at 300° C. to 450° C. and aging.

6. The conductive contact probe according to claim 3 , wherein Vickers hardness is HV 480 to 560 after heating at 300° C. to 450° C. and aging.

7. A conductive connection terminal contacting with each of contact targets at both ends in a longitudinal direction,
at least part of which is formed using an alloy material, consisting of:
a composition containing 17 at % to 25 at % of silver (Ag), 30 at % to 45 at % of palladium (Pd), and 30 at % to 53 at % of copper (Cu) in a composition range of a ternary alloy of Ag, Pd, and Cu; and
at least one of manganese (Mn), tin (Sn), silicon (Si), antimony (Sb), titanium (Ti) and magnesium (Mg) added to the composition in a range of 4.5 at % or less,
wherein the Mn in a range of 0.5 at % to 3.5 at %, the Sn in a range of 1 at % to 2 at %, the Si in a range of 0.5 at % to 2 at %, the Sb in a range of 0.5 at % to 3 at %, the Ti in a range of 0.5 at % to 2 at %, and the Mg in a range of 0.5 at % to 3.5 at % are added to the composition, and
one of iridium (Ir), ruthenium (Ru) and a combination of Ir and Ru is further added in an amount of 0.01 at % to 0.05 at %.

8. The conductive connection terminal according to claim 7 , wherein Vickers hardness is HV 480 to 560 after heating at 300° C. to 450° C. and aging.

9. A conductive contact probe contacting with each of contact targets at both ends in a longitudinal direction,
at least part of which is formed using an alloy material, comprising:
a composition containing 17 at % to 25 at % of silver (Ag), 30 at % to 45 at % of palladium (Pd), and 30 at % to 53 at % of copper (Cu) in a composition range of a ternary alloy of Ag, Pd, and Cu; and
at least one of manganese (Mn), tin (Sn), silicon (Si), antimony (Sb), titanium (Ti) and magnesium (Mg) added to the composition in a range of 4.5 at % or less,
wherein the Mn in a range of 0.5 at % to 3.5 at %, the Sn in a range of 1 at % to 2 at %, the Si in a range of 0.5 at % to 2 at %, the Sb in a range of 0.5 at % to 3 at %, the Ti in a range of 0.5 at % to 2 at %, and the Mg in a range of 0.5 at % to 3.5 at % are added to the composition, and
one of iridium (Ir), ruthenium (Ru) and a combination of Ir and Ru is further added in an amount of 0.01 at % to 0.05 at %, and

the conductive contact probe, comprising:
a first conductive plunger contacting with one of contact targets at one end;
a second conductive plunger contacting with other one of the contact targets at the other end; and
a coil spring arranged between the first plunger and the second plunger so as to elastically connect the first and the second plungers with each other,
wherein at least one of the first plunger, the second plunger, and the coil spring consists of the alloy material.

10. The conductive contact probe according to claim 9 , wherein Vickers hardness is HV 480 to 560 after heating at 300° C. to 450° C. and aging.

Assignees

• Yamamoto Precious Metal Co Ltd
• Shinko Metal Prod
• Nhk Spring Co Ltd

Inventors

• Anraku Teruo
• Ainoya Masayuki
• Kubota Tomohiro
• Toyotake Kotaro
• Minami Tomoyuki
• Takamura Noritoshi
• Takahashi Humio

Classifications

• C22C30/02

  containing copper · CPC title

• C12Q1/00

  Measuring or testing processes involving enzymes, nucleic acids or microorganisms (measuring or testing apparatus with condition measuring or sensing means, e.g. colony counters, C12M1/34); Compositions therefor; Processes of preparing such compositions · CPC title

• B01J2/00

  Processes or devices for granulating materials {, e.g. fertilisers} in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic · CPC title

• G01R3/00

  Apparatus or processes specially adapted for the manufacture {or maintenance} of measuring instruments {, e.g. of probe tips} · CPC title

• G01R1/06722

  Spring-loaded · CPC title