| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of manufacturing a copper-coated aluminum wire, by which the thickness of copper on the surface can be adjusted to arbitrary thickness and, further, the copper-coated aluminum wire whose area rate of copper is less than 10% can be manufactured at low cost. SOLUTION: In the manufacturing process of the copper-coated aluminum wire including a copper coating step where a composite wire 3 of the copper-coated aluminum wire is manufactured by coating copper on an aluminum wire 1 and a drawing step where the composite wire of the copper-coated aluminum wire is thinned down to a prescribed diameter, the process has a copper layer polishing step where the thickness of the copper layer 2 is adjusted to a prescribed thickness by reducing the thickness of the copper layer 2. COPYRIGHT: (C)2009,JPO&INPIT
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