Title:
【発明の名称】積層型コンデンサ
Document Type and Number:
Japanese Patent JP3064732
Kind Code:
B2
Abstract:
PURPOSE:To relax a field concentration between a capacitor electrode and an external electrode and restrict creeping discharge from a capacitor surface, by providing a floating electrode which is inherent in an insulator outer layer in an electrically non-contact state in either electrode. CONSTITUTION:A layered type capacitor 1 in which an external electrode 3 is installed to the end is layered with a capacitor 4 and an insulator outside layer 5 which protects the capacitor 4 in the thickness direction in structure. A frame-shaped floating electrode 20, which is not electrically connected to any electrode inside the insulator outside layer 5. The floating electrode 20 is installed virtually at a position between an end part 3a of the outside electrode 3 and an end part 22a of a capacitor electrode 22. The capacitor 4 is alternately layered with capacitor electrodes 22 to 24 and dielectric layers 7 to 9. Frame-shaped floating electrodes 27 and 28 are installed inside the dielectric layers 7 and 8. This construction makes it possible to relax a field concentration between the capacitor electrodes and the outside electrodes and provide a small-sized laminated type capacitor which is excellent in voltage resistant performance without increasing the thickness of the insulator outside layer.
Inventors:
Eiji Yamada
Takako Hashimoto
Takako Hashimoto
Application Number:
JP7158293A
Publication Date:
July 12, 2000
Filing Date:
March 30, 1993
Export Citation:
Assignee:
MURATA MANUFACTURING CO.,LTD.
International Classes:
H01G4/12; H01G4/30; (IPC1-7): H01G4/12; H01G4/30
Domestic Patent References:
| JP60170924A | ||||
| JP1220422A | ||||
| JP1220421A | ||||
| JP5897830U |
Attorney, Agent or Firm:
Takekazu Morishita