- 专利标题: MULTILAYER CERAMIC ELECTRONIC COMPONENT
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申请号: US17205069申请日: 2021-03-18
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公开(公告)号: US20210327649A1公开(公告)日: 2021-10-21
- 发明人: Satoshi MURAMATSU , Ken TOMINAGA
- 申请人: Murata Manufacturing Co., Ltd.
- 申请人地址: JP Nagaokakyo-shi
- 专利权人: Murata Manufacturing Co., Ltd.
- 当前专利权人: Murata Manufacturing Co., Ltd.
- 当前专利权人地址: JP Nagaokakyo-shi
- 优先权: JP2020-074660 20200420
- 主分类号: H01G4/30
- IPC分类号: H01G4/30 ; H01G4/012 ; H01G4/008 ; H01G4/232 ; H01G4/12
摘要:
A multilayer ceramic capacitor includes an external electrode including an underlying electrode layer, a lower plating layer on the underlying electrode layer at a first end surface and a second end surface, and an upper plating layer on the lower plating layer. The underlying electrode layer is a thin film electrode including at least one selected from Ni, Cr, Cu, and Ti. The lower plating layer is a Cu plating layer including a lower layer region located closer to the multilayer body and an upper layer region located between the lower layer region and the upper plating layer, and the Cu plating layer in the lower layer region has a metal grain diameter smaller than that of the Cu plating layer located in the upper layer region.
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