Title:
誘電体セラミックおよびその製造方法ならびに積層セラミックコンデンサ
Document Type and Number:
Japanese Patent JP4392821
Kind Code:
B2
Abstract:
The dielectric ceramic includes ABO3 as a major component and R and M as accessory components, where A is at least one of Ba, Sr and Ca; B is at least one of Ti, Zr and Hf; R is at least one of La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu and Y; and M is at least one of Ni, Co, Fe, Cr and Mn. The dielectric ceramic contains the components R and M at about 70% or more of analysis points in grain boundaries. - DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: (i) a process for producing the above dielectric ceramic involving calcining and pulverizing a mixture of R and M compounds to provide a calcined accessory-component, mixing the ABO3 powder with the calcined accessory-component and forming the resultant mixture to yield a green compact; and (ii) a multilayer ceramic capacitor (1) incorporating the dielectric ceramic.
Inventors:
Tomoyuki Nakamura
Kentaro Sakai
Harunobu Sano
Kentaro Sakai
Harunobu Sano
Application Number:
JP2001243451A
Publication Date:
January 06, 2010
Filing Date:
August 10, 2001
Export Citation:
Assignee:
MURATA MANUFACTURING CO.,LTD.
International Classes:
C04B35/46; B32B18/00; C04B35/468; H01G4/12
Domestic Patent References:
| JP5124857A | ||||
| JP11255560A | ||||
| JP9270366A | ||||
| JP10310469A | ||||
| JP645182A |
Attorney, Agent or Firm:
Masaaki Koshiba