发明名称 |
METAL FOIL AND ELECTRONIC DEVICE |
摘要 |
There is provided a metal foil suitable for an electrode substrate for an electronic element, which makes it possible to suppress oxidation of the ultra-smooth surface and also prevent roll scratches when wound in a roll. The metal foil of the present invention is made of copper or copper alloy. The front surface of the metal foil has an ultra-smooth surface profile having an arithmetic mean roughness Ra of 30 nm or less as determined in accordance with JIS B 0601-2001. The back surface of the metal has a concave-dominant surface profile having a Pv/Pp ratio of 1.5 or more, the Pv/Pp ratio being a ratio of a maximum profile valley depth Pv to a maximum profile peak height Pp of a profile curve as determined in a rectangular area of 181 µm by 136 µm in accordance with JIS B 0601-2001. |
申请公布号 |
EP2879466(A1) |
申请公布日期 |
2015.06.03 |
申请号 |
EP20130822106 |
申请日期 |
2013.04.24 |
申请人 |
MITSUI MINING AND SMELTING CO., LTD. |
发明人 |
MATSUURA YOSHINORI;KITAJIMA NOZOMU;NAKAMURA TOSHIMI;MYOI MASAHARU |
分类号 |
H05B33/02;H01L51/42;H01L51/50;H05B33/24;H05B33/26 |
主分类号 |
H05B33/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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