Metal Body, Fitting Connection Terminal, and Method for Forming Metal Body
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United States of America Patent
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Issued Date -
Mar 30, 2023
app pub date -
Dec 28, 2020
filing date -
Dec 28, 2020
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Abstract
Provided are a metal body that can be manufactured easily while whisker generation resulting from external stress is suppressed, a fitting connection terminal, and a method for forming the metal body. The metal body includes a barrier layer containing Ni as a main component formed on a metal substrate containing Cu as a main component, and a metal plating layer containing Sn as a main component formed directly on the barrier layer. An area ratio that is a ratio of the area of an intermetallic compound containing Sn and Cu in the metal plating layer to a cross section of the metal plating layer is 20% or less in the cross section of the metal body.
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