Invention Grant
- Patent Title: Multilayer ceramic capacitor and manufacturing method of multilayer ceramic capacitor
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Application No.: US16056172Application Date: 2018-08-06
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Publication No.: US11239031B2Publication Date: 2022-02-01
- Inventor: Kotaro Mizuno
- Applicant: TAIYO YUDEN CO., LTD.
- Applicant Address: JP Tokyo
- Assignee: TAIYO YUDEN CO., LTD.
- Current Assignee: TAIYO YUDEN CO., LTD.
- Current Assignee Address: JP Tokyo
- Agency: Law Office of Katsuhiro Arai
- Priority: JP2017-153390 20170808,JP2018-089092 20180507
- Main IPC: H01G4/30
- IPC: H01G4/30 ; H01G4/008 ; H01G4/012 ; H01G4/12

Abstract:
A multilayer ceramic capacitor includes: a multilayer structure in which each of dielectric layers and each of internal electrode layers are alternately stacked, a main component of the dielectric layers being ceramic, wherein: the multilayer structure comprises surface portions and a center portion in a stacking direction of the dielectric layers and the internal electrode layers, the surface portions having a first thickness from a surface of the multilayer structure, the center portion being next to the surface portion in the stacking direction and having a second thickness; and an average length of crystal grains of a main component metal of the internal electrode layers of the surface portions is 0.8 times or less than an average length of crystal grains of a main component metal of the internal electrode layers of the center portion.
Public/Granted literature
- US20190051459A1 MULTILAYER CERAMIC CAPACITOR AND MANUFACTURING METHOD OF MULTILAYER CERAMIC CAPACITOR Public/Granted day:2019-02-14
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