发明申请
- 专利标题: SURFACE-TREATED ELECTRO-DEPOSITED COPPER FOIL AND METHOD FOR MANUFACTURING THE SAME
- 专利标题(中): 表面处理电沉积铜箔及其制造方法
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申请号: US12282231申请日: 2007-03-09
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公开(公告)号: US20090047539A1公开(公告)日: 2009-02-19
- 发明人: Makoto Dobashi , Mitsuyoshi Matsuda , Sakiko Tomonaga , Hisao Sakai , Tomohiro Sakata , Junshi Yoshioka , Jo Nishikawa , Takeo Taguchi
- 申请人: Makoto Dobashi , Mitsuyoshi Matsuda , Sakiko Tomonaga , Hisao Sakai , Tomohiro Sakata , Junshi Yoshioka , Jo Nishikawa , Takeo Taguchi
- 申请人地址: JP Tokyo
- 专利权人: MITSUI MINING & SMELTING CO., LTD
- 当前专利权人: MITSUI MINING & SMELTING CO., LTD
- 当前专利权人地址: JP Tokyo
- 优先权: JP2006-066806 20060310; JP2006-272326 20061003
- 国际申请: PCT/JP2007/054681 WO 20070309
- 主分类号: B32B3/00
- IPC分类号: B32B3/00 ; B21C37/02 ; C25D5/00
摘要:
It is an object to provide a surface-treated electro-deposited copper foil which has a low profile at a level equal to or excellent than that of low-profile surface-treated electro-deposited copper foils that have conventionally been supplied to the market and in which waviness affecting the straight line performance of wiring is small, and a method for manufacturing the same. In order to achieve this object, in the surface-treated electro-deposited copper foil, the maximum waviness height (Wmax) of the bonding surface to be bonded with an insulation layer-constituting material to be 0.05 μm to 0.7 μm, the maximum peak to valley height (PV) to be 0.05 to 1.5 μm, and the surface roughness (Rzjis) to be 0.1 μm to 1.0 μm. The electro-deposited copper foil used for the manufacturing of this surface-treated electro-deposited copper foil is manufactured by using a sulfuric acid base copper electrolytic solution obtained by adding 3-mercapto-1-propanesulfonic acid or bis(3-sulfopropyl)disulfide, a quaternary ammonium salt polymer having a cyclic structure, and chlorine, and using a cathode having small surface roughness, under electrolysis conditions of carrying out continuous first-step electrolysis to n-th-step electrolysis at two or more different levels of electric current density.
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