| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a surface treated copper foil for a flexible printed wiring board in which a thick film of a chromium-based film is achieved and a ratio of the chromium-based film to the total amount of a base metal film and the chromium-based film is controlled. <P>SOLUTION: The surface treated copper foil for a flexible printed wiring board is obtained by forming the base metal film composed of at least zinc plating and the chromium-based film on a copper foil, wherein the content of chromium metal relative to the total of the content of zinc and chromium metal in the base metal film and the chromium-based film is 50-99 mass%. <P>COPYRIGHT: (C)2013,JPO&INPIT |
