Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
MANUFACTURING METHOD FOR LAMINATED BOARD AND PRINTED WIRING BOARD
Document Type and Number:
WIPO Patent Application WO/2013/136729
Kind Code:
A1
Abstract:
Provided is a laminated board that is provided with an insulating layer and copper foil positioned on at least one surface of the insulating layer, and that is used in a device mounting substrate obtained by forming a conductor circuit by etching the copper foil. The copper foil etching rate is between 0.68µm/min and 1.25µm/min under conditions where the laminated board it immersed in a sulfuric acid/hydrogen peroxide etching liquid comprising 55.9g/L of sulfuric acid and 19.6cc/L of 34.5% hydrogen peroxide and at a temperature of 30°C+1°C.

Inventors:
ITO TEPPEI (JP)
OHIGASHI NORIYUKI (JP)
Application Number:
PCT/JP2013/001432
Publication Date:
September 19, 2013
Filing Date:
March 07, 2013
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
SUMITOMO BAKELITE CO (JP)
NIPPON DENKAI LTD (JP)
International Classes:
H05K3/06; C25D1/04; H05K1/09
Domestic Patent References:
WO2009101948A12009-08-20
Foreign References:
JP2000188460A2000-07-04
JP2005005341A2005-01-06
JPH11172467A1999-06-29
JPH10330983A1998-12-15
JP2007294923A2007-11-08
JP2008294432A2008-12-04
Attorney, Agent or Firm:
HAYAMI, SHINJI (JP)
Shinji Hayami (JP)
Download PDF: