Paste for forming internal electrode in a ceramic element

Details Paste for forming internal electrode in a ceramic element Paste for forming internal electrode in a ceramic element

H - Electricity

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H01G 4/005 (2006.01) H01B 1/16 (2006.01) H01B 1/20 (2006.01) H01B 1/22 (2006.01) H01G 4/008 (2006.01) H01G 4/12 (2006.01)

Patent

CA 2261405

The present invention provides a paste for forming an internal electrode in a ceramic element. The paste causes no sudden heat generation from an organic vehicle contained therein during a degreasing step and allows Pd or Ag/Pd serving as an internal electrode to expand freely as a result of oxidation during a firing step, to thereby prevent structural defects of the ceramics such as delamination, when used for the formation of internal electrodes in a ceramic element such as a laminated ceramic capacitor. The paste contains a metal powder of Pd or Ag/Pd, Pd resinate, Cr resinate, and an organic vehicle. Preferably, the Pd resinate contains sulfur in the molecule. Also preferably, the paste contains the Pd resinate in an amount of 2.0-3.0 parts by weight as reduced to Pd, based on 100 parts by weight of Pd in the metal powder, and the Cr resinate in an amount of 0.03-0.12 parts by weight as reduced to Cr2O3, based on 100 parts by weight of the metal powder.

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