Dielectric ceramics, multilayer ceramic capacitor and method...

Details Dielectric ceramics, multilayer ceramic capacitor and method... Dielectric ceramics, multilayer ceramic capacitor and method...

2008-04-29

2008-04-29

Ha, Nguyen T. (Department: 2831)

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

C361S321100, C361S321200, C361S321500, C361S311000, C361S313000, C501S134000, C501S136000, C501S138000

Reexamination Certificate

active

11258669

ABSTRACT:
Crystal grains mainly composed of barium titanate have a mean grain size of not more than 0.2 μm. The volume per unit cell V that is represented by a product of lattice constant (a, b, c) figured out from the X-ray diffraction pattern of the crystal grains is not more than 0.0643 nm3. Thereby, a dielectric ceramics having high relative dielectric constant can be obtained. A multilayer ceramic capacitor comprises a capacitor body and an external electrode that is formed at both ends of the capacitor body. The capacitor body comprises dielectric layers composed of the dielectric ceramics, and internal electrode layers. The dielectric layers and the internal electrode layers are alternately laminated.

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