发明申请
- 专利标题: ROLLED COPPER FOIL AND MANUFACTURING METHOD THEREOF
- 专利标题(中): 卷绕铜箔及其制造方法
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申请号: US12846865申请日: 2010-07-30
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公开(公告)号: US20100291402A1公开(公告)日: 2010-11-18
- 发明人: Takemi Muroga , Yasuyuki Ito , Koji Aoyagi , Yoshiki Yamamoto , Kenji Yokomizo , Katsumi Nomura
- 申请人: Takemi Muroga , Yasuyuki Ito , Koji Aoyagi , Yoshiki Yamamoto , Kenji Yokomizo , Katsumi Nomura
- 优先权: JP2006-290880 20061026; JP2006-290884 20061026
- 主分类号: B32B15/20
- IPC分类号: B32B15/20
摘要:
A rolled copper foil applied with a recrystallization annealing after a final cold rolling step and having a crystal grain alignment satisfying a ratio of [a]/[b]≧3, where [a] and [b] are normalized average intensities of a {111}Cu plane diffraction of a copper crystal by β-scanning at α=35° and 74°, respectively, in an X-ray diffraction pole figure measurement to a rolled surface is manufactured by controlling a total working ratio in the final cold rolling step before the recrystallization annealing to be 94% or more; and controlling a working ratio per one pass in the final cold rolling step to be 15 to 50%.