Title:
誘電体組成物、セラミック多層素子の製造方法および電子装置
Document Type and Number:
Japanese Patent JP2004505878
Kind Code:
A
Abstract:
The dielectric composition contains a mixture of a ceramic composition containing BaaREbTicO3, wherein RE represents a rare earth element, with 0.05<=a<=0.25, 0.525<=b<=0.70, 0.85<=c<=1.0, and 2a+3b+4c=6, and free from lead and bismuth, a glass composition, and a metal oxide. The glass composition preferably contains ZnO or MgO, SiO2, and at least 10% by weight of Li2O or TiO2. Preferably, the alkaline earth metal oxide is MgO. By preference, the glass composition essentially consists of 50-80% weight of SiO2, 5-25% weight of MgO, and optionally another alkaline earth metal oxide, and 10-25% by weight of Li2O, and is substantially free from boron. The dielectric composition can be sintered in the presence of Cu electrodes at a temperature below the melting point of Cu so as to manufacture an electronic device such as a ceramic multilayer element. After sintering, the dielectric composition has a relative dielectric constant of at least 55.
Inventors:
Ronald Mickenney
Gerardus, C.M. Dortant
Knus, Arbatsen
Heinz, G. Kohler
Tillman, Schlenker
Gerardus, C.M. Dortant
Knus, Arbatsen
Heinz, G. Kohler
Tillman, Schlenker
Application Number:
JP2002518482A
Publication Date:
February 26, 2004
Filing Date:
July 23, 2001
Export Citation:
Assignee:
Koninklijke Philips Electronics N.V.
International Classes:
C04B35/46; C04B35/462; C04B35/468; C04B35/50; C04B37/02; H01B3/02; H01B3/12; H01G4/12; (IPC1-7): C04B35/46; H01B3/02; H01B3/12; H01G4/12
Attorney, Agent or Firm:
Kenji Yoshitake
Hidetoshi Tachibana
Yasukazu Sato
Hiroshi Yoshimoto
Yasushi Kawasaki
Hakozaki Yukio
Hidetoshi Tachibana
Yasukazu Sato
Hiroshi Yoshimoto
Yasushi Kawasaki
Hakozaki Yukio