Ceramic composition of high dielectric constant
Номер патента: CA1188089A
Опубликовано: 04-06-1985
Автор(ы): Gen Itakura, Kaneomi Nagase, Takashi Iguchi, Takayuki Kuroda
Принадлежит: Matsushita Electric Industrial Co Ltd
Опубликовано: 04-06-1985
Автор(ы): Gen Itakura, Kaneomi Nagase, Takashi Iguchi, Takayuki Kuroda
Принадлежит: Matsushita Electric Industrial Co Ltd
Реферат: ABSTRACT OF THE DISCLOSURE: A ceramic composition of a high dielectric constant is provided, which consists of 100 mol parts of barium metatitanate (BaTiO3), (2/3)(7+1) mol parts of cerium dioxide, and 7+1 mol parts of titanium dioxide (TiO2), and to which 0.05 to 0.2 mol part of MnO2 is added as needed. The ceramic composition has a ceramic microstructure in which a grain size is as small as 2 to 3 µm and a pore size is small to be not more than 3 µm. The ceramic composition has a high dielectric constant of about 10,000, a high breakdown voltage, and little dependency on voltage. The ceramic composition is very suitable as a thin dielectric film for a laminated ceramic chip capacitor.
Dielectric ceramic composition
Номер патента: WO1999028271A1. Автор: Kiyotaka Saito,Hitoshi Masumura,Atsuko Fujii. Владелец: Philips Ab. Дата публикации: 1999-06-10.