Title:
誘電体組成物および電子部品
Document Type and Number:
Japanese Patent JP7095576
Kind Code:
B2
Abstract:
A dielectric composition has barium, strontium, and bismuth calcium titanates constituting a main component and subcomponent. “a” mol % represents a content of barium titanate in terms of BaTiO3, “b” mol % strontium titanate in terms of SrTiO3, and “c” mol % bismuth calcium titanate in terms of CaBi4Ti4O15 in the main component composition. a+b+c=100 is satisfied, 50≤a≤83, 12≤b≤49.5, 0.5≤c≤5. The dielectric composition includes a first subcomponent constituted by at least one compound including one of manganese, iron, and chromium. The first subcomponent is included in a ratio of 0.2 wt % or more and 3 wt % or less in terms of total of MnCO3, Fe2O3, and Cr2O3 with respect to 100 wt % of the main component. The dielectric composition includes a second subcomponent compound including niobium, included in a ratio of 0.1 wt % or more and 3 wt % or less in terms of Nb2O5 with respect to 100 wt % of the main component.
Inventors:
Liu Hailong
Liang Rei
Daisuke Otsu
Liang Rei
Daisuke Otsu
Application Number:
JP2018224067A
Publication Date:
July 05, 2022
Filing Date:
November 29, 2018
Export Citation:
Assignee:
tdk Corporation
International Classes:
C04B35/468; H01B3/12; H01G4/30
Domestic Patent References:
| JP2017178658A | ||||
| JP2007161538A | ||||
| JP2007246347A |
Foreign References:
| CN103058651A | ||||
| CN103482975A |
Attorney, Agent or Firm:
Maeda/Suzuki International Patent Corporation
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