Title:
METHOD FOR MANUFACTURE OF ELECTROLYTIC COPPER FOIL, ELECTROLYTIC COPPER FOIL MANUFACTURED BY THE METHOD, SURFACE-TREATED COPPER FOIL MANUFACTURED USING THE ELECTROLYTIC COPPER FOIL, AND COPPER-CLAD LAMINATE MANUFACTURED USING THE ELECTROLYTIC COPPER FOIL OR SURFACE-TREATED COPPER FOIL
Document Type and Number:
WIPO Patent Application WO/2007/052630
Kind Code:
A1
Abstract:
Disclosed is a method for manufacture of an electrolytic copper foil having a lower profile compared to a conventional, commercially available low-profile electrolytic copper foil and also having excellent mechanical strength, with good efficiency. The method may comprise electrolyzing a sulfate-type copper electrolyte solution containing a quaternary ammonium salt polymer having a cyclic structure and a chlorine to form the electrolytic copper foil, wherein the quaternary ammonium salt polymer to be added to the sulfate-type copper electrolyte solution is a DDAC polymer composed of two or more monomer units. Preferably, the quaternary ammonium salt polymer is a diaryldimethylammonium chloride having a number average molecular weight of 300 to 10000. Preferably, the sulfate-type copper electrolyte solution comprises bis(3-sulfopropyl)disulfide or 3-mercapto-1-propanesulfonic acid which has a mercapto group.
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Inventors:
DOBASHI MAKOTO (JP)
MATSUDA MITSUYOSHI (JP)
TOMONAGA SAKIKO (JP)
SAKAI HISAO (JP)
SAKATA TOMOHIRO (JP)
TATEOKA AYUMU (JP)
HATA HIROSHI (JP)
MOGI SATOSHI (JP)
TAGUCHI TAKEO (JP)
YOSHIOKA JUNSHI (JP)
MATSUDA MITSUYOSHI (JP)
TOMONAGA SAKIKO (JP)
SAKAI HISAO (JP)
SAKATA TOMOHIRO (JP)
TATEOKA AYUMU (JP)
HATA HIROSHI (JP)
MOGI SATOSHI (JP)
TAGUCHI TAKEO (JP)
YOSHIOKA JUNSHI (JP)
Application Number:
PCT/JP2006/321701
Publication Date:
May 10, 2007
Filing Date:
October 31, 2006
Export Citation:
Assignee:
MITSUI MINING & SMELTING CO (JP)
DOBASHI MAKOTO (JP)
MATSUDA MITSUYOSHI (JP)
TOMONAGA SAKIKO (JP)
SAKAI HISAO (JP)
SAKATA TOMOHIRO (JP)
TATEOKA AYUMU (JP)
HATA HIROSHI (JP)
MOGI SATOSHI (JP)
TAGUCHI TAKEO (JP)
YOSHIOKA JUNSHI (JP)
DOBASHI MAKOTO (JP)
MATSUDA MITSUYOSHI (JP)
TOMONAGA SAKIKO (JP)
SAKAI HISAO (JP)
SAKATA TOMOHIRO (JP)
TATEOKA AYUMU (JP)
HATA HIROSHI (JP)
MOGI SATOSHI (JP)
TAGUCHI TAKEO (JP)
YOSHIOKA JUNSHI (JP)
International Classes:
C25D1/00; C25D1/04; H05K1/09
Domestic Patent References:
| WO2006106956A1 | 2006-10-12 |
Foreign References:
| JP2004035918A | 2004-02-05 | |||
| JP2005159239A | 2005-06-16 |
Attorney, Agent or Firm:
YOSHIMURA, Katsuhiro (Office Omiya F Bldg., 5-4, Sakuragicho 2-chome, Omiya-k, Saitama-shi Saitama 54, JP)
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