Dowa Metaltech Co., Ltd.

Shunsuke Ashidate

Kentaro Arai

Yutaro Hirai

There is provided an inexpensive plated product, which can prevent the increase of the contact resistance of a silver-plating film and the change of the color of the surface thereof after reflow-treating a plated product wherein the silver-plating film is formed on a portion of the surface thereof and wherein a tin-plating film is formed on a portion of the other portion of the surface thereof, and a method for producing the same. The plated product is produced by a method including the steps of: forming a nickel-plating filmon a surface of a base materialof copper or a copper alloy; forming a silver-plating filmon a portion of a surface of the nickel-plating film, and forming a tin-plating filmon a portion of the other portion of the surface of the nickel-plating film, to prepare a plated product which has the silver-plating filmand the tin-plating filmon the surface of the nickel-plating filmformed on the base material; and irradiating the surface of the plated product with infrared rays to heat the surface thereof to reflow-treat the tin-plating filmto cause the tin-plating filmto be a reflowed tin-plating layer

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Tokyo, Japan

Shunsuke Ashidate