Solder alloy and mounted structure using same

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United States of America Patent

PATENT NO 9981348
SERIAL NO

15267083

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Abstract

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A solder alloy is substantially Ag-free and has desirable neat-resistance fatigue characteristics in a high-temperature environment as high as 150° C., even when used for soldering of electronic components having no leads. The solder alloy contains Sb, In, Cu, and Bi, and Sn accounting for the remainder, and satisfies the following formulae:

description='In-line Formulae' end='lead'0.5≤[Sb]≤1.25description='In-line Formulae' end='tail'

description='In-line Formulae' end='lead'0.66[Sb]+4.16≤[In]≤6.0description='In-line Formulae' end='tail'

description='In-line Formulae' end='lead'0.5≤[Cu]≤1.2description='In-line Formulae' end='tail'

description='In-line Formulae' end='lead'0.1≤[Bi]≤0.5,description='In-line Formulae' end='tail'

wherein [Sb], [In], [Cu], and [Bi] represent the contents of Sb, In, Cu, and Bi, respectively, in mass %.

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Patent Owner(s)

Patent OwnerAddress
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD1-61 SHIROMI 2-CHOME CHUO-KU OSAKA-SHI OSAKA 540-6207

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Furusawa, Akio Osaka, JP 37 124
Hine, Kiyohiro Osaka, JP 20 23
Kitaura, Hidetoshi Osaka, JP 40 79

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