Invention Grant
- Patent Title: Multilayer ceramic capacitor
- Patent Title (中): 多层陶瓷电容器
-
Application No.: US14645717Application Date: 2015-03-12
-
Publication No.: US09449760B2Publication Date: 2016-09-20
- Inventor: Shota Kitano , Takanobu Katsuyama , Hiroaki Sugita
- Applicant: Murata Manufacturing Co., Ltd.
- Applicant Address: JP Kyoto
- Assignee: Murata Manufacturing Co., Ltd.
- Current Assignee: Murata Manufacturing Co., Ltd.
- Current Assignee Address: JP Kyoto
- Agency: Keating & Bennett, LLP
- Priority: JP2014-164957 20140813
- Main IPC: H01G4/30
- IPC: H01G4/30 ; H01G4/12 ; H01G4/232

Abstract:
A multilayer ceramic capacitor includes a multilayer unit, thickness-direction first and second outer layer sections, and length-direction first and second outer layer sections. A dimension of the thickness-direction second outer layer section is greater than a dimension of the thickness-direction first outer layer section. The thickness-direction second outer layer section includes an inner portion and an outer portion. A composition ratio of Si to Ti in a ceramic dielectric layer included in the outer portion is higher than that in the inner portion. A Si content ratio is higher in a boundary portion between the outer portion and the inner portion. A relationship expressed by T1/(L0−L1)≦5.98 is satisfied when a minimum dimension in the length direction of the body is denoted by L0, a minimum dimension in the thickness direction of the multilayer unit is denoted by T1, and a minimum dimension in the length direction of the multilayer unit is denoted by L1.
Public/Granted literature
- US20160049244A1 MULTILAYER CERAMIC CAPACITOR Public/Granted day:2016-02-18
Information query