Compositions – Electrically conductive or emissive compositions
Reexamination Certificate
2006-10-17
2006-10-17
Kopec, Mark (Department: 1751)
Compositions
Electrically conductive or emissive compositions
C252S512000, C252S513000, C252S519540, C252S062200, C156S089180, C156S089110, C216S013000, C216S017000, C216S018000, C361S303000, C428S357000
Reexamination Certificate
active
07122131
ABSTRACT:
The present invention is directed to a conductive paste for via conductor, comprising a Cu powder having a glass layer formed on the surface, a Ni powder having a metal oxide layer formed on the surface, and a ceramic component homogeneous as that of a ceramic component contained in a green sheet, a ceramic wiring board such as laminated ceramic capacitor, comprising via conductors formed of the same, and a method of manufacturing the same. According to the present invention, via conductors having excellent electrical conductivity can be formed by preventing the formation of a Cu—Ni alloy due to the reaction of the Cu powder and the Ni powder.
REFERENCES:
patent: 6827880 (2004-12-01), Ishimatsu
patent: 2001/0001481 (2001-05-01), Sanada et al.
patent: 2003-229325 (2003-08-01), None
Hogan & Hartson LLP
Kopec Mark
Kyocera Corporation
Vijayakumar Kallambella
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