Title:
THIN FILM CAPACITOR AND ELECTRONIC CIRCUIT BOARD COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2023/157427
Kind Code:
A1
Abstract:
[Problem] To provide a thin film capacitor in which a pair of terminal electrodes can be positioned on the same surface. [Solution] A thin film capacitor 1 comprises a metal foil 10 having a roughened surface, a dielectric film D that covers the surface of the metal foil 10 and that has an opening through which the metal foil 10 is partially exposed, an electrode layer 31 that contacts the metal foil 10 via the opening, and an electrode layer 32 that contacts the dielectric film D but does not contact the metal foil 10. The top surface of the electrode layer 32 is at the same position or lower than the top surface position of the electrode layer 31.
Inventors:
ISHII DAIKI (JP)
TOMIKAWA MITSUHIRO (JP)
YOSHIDA KENICHI (JP)
KARIYA TAKASHI (JP)
HARADA YASUNORI (JP)
HAYAMIZU YOSHIAKI (JP)
HASEGAWA MIYU (JP)
TOMIKAWA MITSUHIRO (JP)
YOSHIDA KENICHI (JP)
KARIYA TAKASHI (JP)
HARADA YASUNORI (JP)
HAYAMIZU YOSHIAKI (JP)
HASEGAWA MIYU (JP)
Application Number:
PCT/JP2022/044516
Publication Date:
August 24, 2023
Filing Date:
December 02, 2022
Export Citation:
Assignee:
TDK CORP (JP)
International Classes:
H01G4/33; H01L23/12
Domestic Patent References:
| WO2022004013A1 | 2022-01-06 | |||
| WO2018008625A1 | 2018-01-11 | |||
| WO2017026233A1 | 2017-02-16 |
Foreign References:
| JP2022504830A | 2022-01-13 |
Attorney, Agent or Firm:
WASHIZU Mitsuhiro et al. (JP)
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