Electronic device and production method thereof
AssigneeTDK Corporation
InventorsShigeki Sato, Keiichi Fukuda
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Abstract
Electronic device 1 comprises an element body 10, comprising a dielectric layer 2 constituted by a dielectric ceramic composition, and a terminal electrode 4, formed outside of the element body 10. The dielectric ceramic composition comprised a main component including barium titanate; a first subcomponent including at least one oxide of Mg and Ca; a second subcomponent including SiO2; a third subcomponent including at least one oxide of Mn and Cr; and a fourth subcomponent including an oxide of rare earth elements, wherein the net valence of Mn and/or Cr in the third subcomponent is 2.2 to 2.4. According to the electronic device 1, both high temperature accelerated lifetime characteristics and capacity stress aging characteristics can be improved in a balanced manner.
Claims14
An electronic device comprising an element body having an dielectric layer composed of dielectric composition, and a terminal electrode formed on an exterior of said element body, wherein said dielectric constituent is comprises:
- main component including barium titanate;
- a first subcomponent including at least one oxide of Mg and Ca;
- a second subcomponent including SiO2;
- a third subcomponent including at least one oxide of Mn and Cr;
- and
- a forth subcomponent including oxide of rare earth elements;
- wherein the net valence of Mn and/or Cr among said third subcomponent is in the range of 2.2 to 2.4.
Dependencies are inferred from the claim text.