Invention Grant
- Patent Title: Electronic device and production method thereof
- Patent Title (中): 电子装置及其制造方法
-
Application No.: US11922697Application Date: 2006-06-23
-
Publication No.: US08014126B2Publication Date: 2011-09-06
- Inventor: Shigeki Sato , Keiichi Fukuda
- Applicant: Shigeki Sato , Keiichi Fukuda
- Applicant Address: JP Tokyo
- Assignee: TDK Corporation
- Current Assignee: TDK Corporation
- Current Assignee Address: JP Tokyo
- Agency: Oliff & Berridge, PLC
- Priority: JP2005-185749 20050624
- International Application: PCT/JP2006/312643 WO 20060623
- International Announcement: WO2006/137533 WO 20061228
- Main IPC: H01G4/06
- IPC: H01G4/06

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.
Public/Granted literature
- US20090195960A1 Electronic Device and Production Method Thereof Public/Granted day:2009-08-06
Information query