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Dielectric ceramic, laminated ceramic capacitor, method for producing the dielectric ceramic, and method for manufacturing the multilayer ceramic capacitor
Provided is a laminated ceramic capacitor which produces excellent lifetime characteristics in a high-temperature loading test even when dielectric layers are reduced in thickness. The dielectric ceramic contains, as its main constituent, a compound represented by the general formula (Ba1-x-yCaxRey)(Ti1-zMz)O3 (where Re is at least one or more elements selected from among La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and Y, and M is at least one or more elements selected from among Mg, Mn, Al, Cr, and Zn), 0≰x≰0.2, 0.002≰y≰0.1, and 0.001≰z≰0.05. This dielectric ceramic has crystal grains of 20 nm or more and 150 nm or less in average grain size.
Dielectric ceramic, laminated ceramic capacitor, method for producing the dielectric ceramic, and method for manufacturing the multilayer ceramic capacitor
Provided is a laminated ceramic capacitor which produces excellent lifetime characteristics in a high-temperature loading test even when dielectric layers are reduced in thickness. The dielectric ceramic contains, as its main constituent, a compound represented by the general formula (Ba1-x-yCaxRey)(Ti1-zMz)O3 (where Re is at least one or more elements selected from among La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and Y, and M is at least one or more elements selected from among Mg, Mn, Al, Cr, and Zn), 0≰x≰0.2, 0.002≰y≰0.1, and 0.001≰z≰0.05. This dielectric ceramic has crystal grains of 20 nm or more and 150 nm or less in average grain size.
Dielectric ceramic, laminated ceramic capacitor, method for producing the dielectric ceramic, and method for manufacturing the multilayer ceramic capacitor
FUKUDA MEGUMI (Autor:in) / YAO TAKAYUKI (Autor:in)
23.06.2015
Patent
Elektronische Ressource
Englisch
IPC:
H01G
Kondensatoren
,
CAPACITORS
/
B32B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
,
Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse
/
B82Y
Bestimmter Gebrauch oder bestimmte Anwendung von Nanostrukturen
,
SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES
/
C01G
Verbindungen der von den Unterklassen C01D oder C01F nicht umfassten Metalle
,
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
/
C04B
Kalk
,
LIME
/
H01B
CABLES
,
Kabel
DIELECTRIC CERAMIC COMPOSITION, CAPACITOR, AND MULTILAYER LAMINATED CERAMIC CAPACITOR
| Europäisches Patentamt | 2019
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| Europäisches Patentamt | 2015
| Europäisches Patentamt | 2016