Title:
CAPACITOR
Document Type and Number:
WIPO Patent Application WO/2024/095537
Kind Code:
A1
Abstract:
The present invention realizes a capacitor that comprises composite bulk members with outstanding mechanical strength. The present invention is a capacitor that comprises: a conductive substrate; a plurality of fiber-like conductive members that are disposed on the substrate and are electrically connected to the substrate; a dielectric layer that covers the surface of the fiber-like conductive members; and a conductor layer that covers a surface of the dielectric layer. The plurality of fiber-like conductive members, the dielectric layer, the conductor layer, and a space formed between the plurality of fiber-like conductive members, which are covered by the dielectric layer and the conductor layer, constitute a composite bulk member. In a cross-section of the substrate in a thickness direction, the fiber-like conductive members have a maximum height of Hmax and the composite bulk member has one-side and an other-side outer peripheral regions that occupy a region from an outer edge of the composite bulk member to twice the maximum height Hmax and a central region that is sandwiched between the one-side and the other-side outer peripheral regions. At least one of the one-side and the other-side outer peripheral regions includes a portion in which the proportion S21 of the total area occupied by the fiber-like conductive members and the dielectric layer is higher than the proportion S11 of the total area occupied by the fiber-like conductive members and the dielectric layer in the central region.
Inventors:
YANAI SOTA (JP)
SHIMIZU YASUHIRO (JP)
NAGATA MASAKI (JP)
SHIRAI NOBUAKI (JP)
SHIMIZU YASUHIRO (JP)
NAGATA MASAKI (JP)
SHIRAI NOBUAKI (JP)
Application Number:
PCT/JP2023/026071
Publication Date:
May 10, 2024
Filing Date:
July 14, 2023
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H01L27/04; C01B32/168; H01G4/30; H01G4/33; H01G11/36; H01L21/822
Domestic Patent References:
| WO2019058922A1 | 2019-03-28 | |||
| WO2021229871A1 | 2021-11-18 | |||
| WO2021059570A1 | 2021-04-01 |
Foreign References:
| US20050219788A1 | 2005-10-06 | |||
| US20210074477A1 | 2021-03-11 |
Attorney, Agent or Firm:
YAMAO, Norihito et al. (JP)
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