Title:
TIN-ZINC ALLOY ELECTROPLATING METHOD
Document Type and Number:
WIPO Patent Application WO/2006/016603
Kind Code:
A1
Abstract:
Disclosed is an electroplating method realizing short-time processing which has been difficult for conventional tin-zinc alloy electroplating methods. Specifically disclosed is a method for performing tin-zinc alloy electroplating under the following conditions: the plating liquid temperature is 30-90&ring C; the stirring rate of the plating liquid is 5-300 m/min; and the cathode current density is 5-200 A/dm2. Preferably, the divalent tin ion concentration in the tin-zinc alloy plating bath is 1-100 g/L, while the zinc ion concentration is 0.2-80 g/L.
Inventors:
YUASA SATOSHI (JP)
Application Number:
PCT/JP2005/014648
Publication Date:
February 16, 2006
Filing Date:
August 10, 2005
Export Citation:
Assignee:
DIPSOL CHEM (JP)
YUASA SATOSHI (JP)
YUASA SATOSHI (JP)
International Classes:
C25D5/26; C25D3/60; C25D21/10
Domestic Patent References:
| WO2004065663A1 | 2004-08-05 |
Foreign References:
| JPH06228786A | 1994-08-16 | |||
| JPH11181589A | 1999-07-06 | |||
| JP2000026991A | 2000-01-25 | |||
| JP2002275678A | 2002-09-25 | |||
| JPH06122991A | 1994-05-06 | |||
| JPH02175894A | 1990-07-09 | |||
| JPS5175633A | 1976-06-30 | |||
| JPH10168592A | 1998-06-23 |
Other References:
See also references of EP 1811063A4
Attorney, Agent or Firm:
Kumakura, Yoshio (Shin-Tokyo Bldg.,, 3-1, Marunouchi 3-chome, Chiyoda-k, Tokyo55, JP)
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