Invention Grant
- Patent Title: Multilayer capacitor having low equivalent series inductance and controlled equivalent series resistance
- Patent Title (中): 具有低等效串联电感和受控等效串联电阻的多层电容器
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Application No.: US13349608Application Date: 2012-01-13
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Publication No.: US08649156B2Publication Date: 2014-02-11
- Inventor: Hirokazu Takashima , Hiroshi Ueoka , Yoshikazu Takagi
- Applicant: Hirokazu Takashima , Hiroshi Ueoka , Yoshikazu Takagi
- 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: JP2007-324277 20071217; JP2008-262405 20081009
- Main IPC: H01G4/005
- IPC: H01G4/005 ; H01G4/06 ; H01G4/228 ; H01G4/38

Abstract:
In a capacitor body of a multilayer capacitor, one second capacitor portion is sandwiched between two first capacitor portions. An ESR is controlled by setting a width of lead portions of third and fourth internal electrodes disposed in the second capacitor portion to be less than that of lead portions of first and second internal electrodes disposed in the first capacitor portions and by changing ratios between the first and second capacitor portions in the width of the lead portions and in the number of stacked internal electrodes. In the first capacitor portions, current paths from the internal electrodes to an external terminal electrode are widely distributed so that the first capacitor portions have a relatively low ESL, and accordingly, the ESL of the entire multilayer capacitor is reduced.
Public/Granted literature
- US20120113560A1 MULTILAYER CAPACITOR HAVING LOW EQUIVALENT SERIES INDUCTANCE AND CONTROLLED EQUIVALENT SERIES RESISTANCE Public/Granted day:2012-05-10
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