Murata Manufacturing Co., Ltd.

Takeo Arakawa

Hiromasa Saeki

Noriyuki Inoue

Naoki Iwaji

Kazuo Hattori

Takeshi Furukawa

Haruhiko Mori

Akihiro Tsuru

Koichi Kanryo

Yoshihiro Fujita

Masahiro Matsuo

Kensuke Aoki

Yuji Yokoyama

Hideo Ito

Daisuke Obara

A capacitor including a conductive metal base material having a porous part, a dielectric layer on the porous part, an upper electrode on the dielectric layer, and an oxide film on a surface of the conductive metal base material. The oxide film on the surface of the metal base material operates as an insulating layer between a lower electrode and an upper electrode, and the metal base material and the oxide film are preferably integrated so that separation of the insulating layer can be prevented, and a short circuit between the lower electrode and the upper electrode can be suppressed.

Capacitor having an oxide film on a surface of a conductive metal base material

A solid electrolytic capacitor element that includes a porous body, a dielectric layer on a surface of the porous body, and a solid electrolyte layer on a surface of the dielectric layer. The porous body is made from a sintered body of a Ti-alloy-containing grain having a Ti&#x2014;Zr&#x2014;X multicomponent alloy on a surface thereof, where X is at least one valve metal element selected from Si, Hf, Y, Al, Mo, W, Ta, Nb, and V, and a composition of the Ti&#x2014;Zr&#x2014;X multicomponent alloy is Ti: 50 atm % to 80 atm %, Zr: 8 atm % to 32 atm %, and X: 1 atm % to 20 atm %.

Solid electrolytic capacitor element, solid electrolytic capacitor, and manufacturing method of solid electrolytic capacitor element

A capacitor that includes a conductive base material with high specific surface area, a dielectric layer covering the conductive base material with high specific surface area, and an upper electrode covering the dielectric layer, in which the conductive base material with high specific surface area is formed of a metal sintered body as a whole.

Capacitor and method for manufacturing the same

A capacitor that includes a porous metal base material, a first buffer layer formed by an atomic layer deposition method on the porous metal base material, a dielectric layer formed by an atomic layer deposition method on the first buffer layer, and an upper electrode formed on the dielectric layer.

Capacitor

A capacitor that includes a porous metallic base material; a phosphorus-containing layer on the porous metallic base material; a dielectric layer on the phosphorus-containing layer; and an electrode on the dielectric layer.

A capacitor that includes a porous metal base material, a dielectric layer formed on the porous metal base material, an upper electrode formed on the dielectric layer, a first terminal electrode electrically connected to the porous metal base material, and a second terminal electrode electrically connected to the upper electrode. The porous metal base material includes a high-porosity part and low-porosity parts, and the low-porosity parts are present at a pair of opposed side surfaces of the porous metal base material.

Growing community of inventors

Nagaokakyo, Japan

Takeo Arakawa