Title:
CONDUCTIVE SUBSTRATE
Document Type and Number:
WIPO Patent Application WO/2010/095723
Kind Code:
A1
Abstract:
Disclosed is a conductive substrate having high adhesion to a base and excellent conductivity, wherein a patterned metal fine particle sintered film, preferably such as a copper wiring pattern is formed on a base such as a polyimide base.
The conductive substrate is obtained by forming a print layer by printing a coating liquid, which contains metal or metal oxide fine particles, on a base and then firing the print layer, thereby forming a metal fine particle sintered film. The crystallite size in the metal fine particle sintered film as determined by X-ray diffraction is not less than 25 nm, and the porosity in a cross-section of the metal fine particle sintered film is not more than 1%. Also disclosed is a method for producing the conductive substrate.
Inventors:
YOSHI, Naonobu (1-1-1, Ichigaya-Kagacho, Shinjuku-k, Tokyo 01, 〒1628001, JP)
喜 直信 (〒01 東京都新宿区市谷加賀町一丁目１番１号 大日本印刷株式会社内 Tokyo, 〒1628001, JP)
喜 直信 (〒01 東京都新宿区市谷加賀町一丁目１番１号 大日本印刷株式会社内 Tokyo, 〒1628001, JP)
Application Number:
JP2010/052563
Publication Date:
August 26, 2010
Filing Date:
February 19, 2010
Export Citation:
Assignee:
DAI NIPPON PRINTING CO., LTD. (1-1-1, Ichigaya-Kagacho Shinjuku-k, Tokyo 01, 〒1628001, JP)
大日本印刷株式会社 (〒01 東京都新宿区市谷加賀町一丁目１番１号 Tokyo, 〒1628001, JP)
YOSHI, Naonobu (1-1-1, Ichigaya-Kagacho, Shinjuku-k, Tokyo 01, 〒1628001, JP)
大日本印刷株式会社 (〒01 東京都新宿区市谷加賀町一丁目１番１号 Tokyo, 〒1628001, JP)
YOSHI, Naonobu (1-1-1, Ichigaya-Kagacho, Shinjuku-k, Tokyo 01, 〒1628001, JP)
International Classes:
H05K3/12; H01B5/14; H01B13/00; H05K1/09; H05K3/38
Attorney, Agent or Firm:
OHTANI, Tamotsu et al. (OHTANI PATENT OFFICE, Bridgestone Toranomon Bldg. 6F. 25-2, Toranomon 3-chome, Minato-k, Tokyo 01, 〒1050001, JP)