| 摘要 |
PROBLEM TO BE SOLVED: To provide a copper foil which is superior in the adhesiveness with an insulating resin, especially, in the adhesiveness also after a heating treatment, by forming a metal layer, without performing a rust prevention treatment, a chromate treatment, or a surface treatment with a silane coupling agent or the like, in the copper foil having a flat and smooth surface required for finer pitching. SOLUTION: The copper foil with Al coating for a copper clad laminate is characterized in that the Al coating is formed on the surface thereof. Preferably, Al concentration of the coating is 85 mass% or more and the coat thickness is 0.4 nm or more. COPYRIGHT: (C)2009,JPO&INPIT
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