Electricity: electrical systems and devices – Electrostatic capacitors – Fixed capacitor
Patent
1997-05-08
1998-09-22
Kincaid, Kristine L.
Electricity: electrical systems and devices
Electrostatic capacitors
Fixed capacitor
D3613081, D361312, D3613212, H01G 4228
Patent
active
058123636
ABSTRACT:
A multilayer capacitor capable of having reducing electrical field intensity at external electrode edges while preventing occurrence of surface dielectric breakdown. This multilayer capacitor has a capacitor main body which includes a capacitance formation section having alternately laminated pluralities of internal electrodes and dielectric layers, and outer dielectric layer sections laminated on the upper and lower surfaces of the capacitance formation section. The capacitor also has external electrodes formed on respective opposite external side surfaces of the capacitor main body and each connected to certain ones of the internal electrodes. The outer layer sections each have respective dielectric breakdown prevention layers therein, each of which exhibits a carefully designed relative dielectric constant .epsilon. which is less than that of the dielectric layers in the capacitance formation section, relation: d>(0.2.times..epsilon.)+20.
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European Search Report dated Nov. 19, 1997.
Honda Yukio
Kuroda Yoichi
Osuga Kazumi
Dinkins Anthony
Kincaid Kristine L.
Murata Manufacturing Co. Ltd.
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