Electrical contact material, method of producing an electrical contact material, and terminal

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United States of America Patent

PATENT NO 10998108
APP PUB NO 20170076834A1
SERIAL NO

15363518

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Abstract

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An electrical contact material (10) having: a conductive substrate (1) formed from copper or a copper alloy; a first intermediate layer (2) provided on the conductive substrate (1); a second intermediate layer (3) provided on the first intermediate layer (2); and an outermost layer (4) formed from tin or a tin alloy and provided on the second intermediate layer (3), wherein the first intermediate layer (2) is constructed as one layer of grains extending from the conductive substrate (1) side to the second intermediate layer (3) side, and wherein, in the first intermediate layer (2), the density of grain boundaries (5b) extending in a direction in which the angle formed by the grain boundary in interest and the interface between the conductive substrate and the first intermediate layer is 45° or greater, is 4 μm/μm2 or less; a method of producing the same; and a terminal.

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Patent Owner(s)

Patent OwnerAddress
FURUKAWA ELECTRIC CO LTD6-4 OTEMACHI 2-CHOME CHIYODA-KU TOKYO 1008322 ?1008322
FURUKAWA AUTOMOTIVE SYSTEMS INC1000 AMAGO KOURA-CHO INUKAMI-GUN SHIGA 5220242

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kawata, Shingo Tokyo, JP 2 2
Kobayashi, Yoshiaki Tokyo, JP 134 1264
Mitose, Kengo Tokyo, JP 52 893
Nakatsugawa, Tatsuya Tokyo, JP 1 1
Okuno, Yoshikazu Tokyo, JP 11 28
Tachibana, Akira Tokyo, JP 39 373

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