| 摘要 |
An electronic part; an electronic equipment; a metal alloy material for use in such products; a method of working an electronic or metallic material; and a n electronic optical part. For example, a metal alloy material for electronic parts that can be used in liquid crystal display devices, various semiconductor products and parts, printed wiring boards and other materials such as IC chip components, further exhibits a resistivity lower than those of conventional items, still further ensures advantage in the manufacturing process and is safe and excellent in workability; and an electronic part and electronic equipment from the metal alloy material. An alloy comprised mainl y of Cu and containing 0.1 to 3.0 wt.% of Mo and a total of 0.1 to 3.0 wt.% of one or two or more elements selected from the group consisting of Al, Au, Ag , Ti, Ni, Co and Si is used as the metallic material. In this metallic materia l, Mo is added to Cu so as to effect homogeneous mixing of Mo in Cu grain boundary with the result that the weatherability of the whole body of Cu can be enhanced.
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