公开(公告)号：US20180047517A1

公开(公告)日：2018-02-15

申请号：US15725652

申请日：2017-10-05

Applicant: Murata Manufacturing Co., Ltd.

Inventor： KOICHI KANRYO ,  Noriyuki Inoue ,  Hiromasa Saeki ,  Takeo Arakawa ,  Kazuo Hattori ,  Ken Ito

IPC: H01G9/15 ,  H01G4/12 ,  H01G4/33 ,  H01G9/028 ,  H01G9/012 ,  H01G9/26 ,  H01G9/00 ,  H01G4/10 ,  H01L49/02

CPC classification number: H01G9/15 ,  H01G4/10 ,  H01G4/12 ,  H01G4/33 ,  H01G9/0032 ,  H01G9/0036 ,  H01G9/012 ,  H01G9/028 ,  H01G9/26 ,  H01L28/75 ,  H01L28/84

Abstract: A capacitor that includes a conductive metal base material with a porous part, a dielectric layer on the porous part, and an upper electrode on the dielectric layer, and has an electrostatic capacitance formation part only on one principal surface side of the capacitor.

公开(公告)号：US09865400B2

公开(公告)日：2018-01-09

申请号：US15204069

申请日：2016-07-07

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Ken Ito ,  Noriyuki Inoue ,  Koichi Kanryo

IPC: H01G9/07 ,  H01G9/042 ,  H01G9/055 ,  H01G9/045

CPC classification number: H01G9/07 ,  H01G9/0029 ,  H01G9/042 ,  H01G9/045 ,  H01G9/055

Abstract: A capacitor that includes a conductive porous base material; a dielectric layer; and an electrode. The conductive porous base material, the dielectric layer, and the upper electrode are laminated together to constitute an effective part that accumulates charges in the dielectric layer when a voltage is applied between the conductive porous base material and the electrode. The conductive porous base material includes at least one groove having a width of 10 μm or more at ½ of a depth of the at least one groove.