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Film capacitor element, film capacitor, and method of producing the film capacitor element

A technology for thin film capacitors and a manufacturing method, which is applied in the directions of thin film/thick film capacitors, fixed capacitor dielectrics, capacitors, etc., can solve the problems of slow deposition rate of vapor-deposited polymer films, difficulty in meeting the requirements of thin film capacitors, and reduced productivity. Effects of improving relative dielectric constant, high withstand voltage, and excellent productivity

Inactive Publication Date: 2012-10-17
KOJIMA PRESS IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] However, research conducted by the present inventors has revealed that even when a vapor-deposited polymer film obtained by depositing and polymerizing polyfluorinated or fluoroalkylated various aromatic monomers is used as a dielectric film of a thin film capacitor, it is difficult Meets recent demands for higher capacitance of film capacitors
In addition, in some cases, the deposition rate (deposited amount per hour) of vapor-deposited polymer films starts to slow down, resulting in reduced productivity

Method used

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  • Film capacitor element, film capacitor, and method of producing the film capacitor element
  • Film capacitor element, film capacitor, and method of producing the film capacitor element
  • Film capacitor element, film capacitor, and method of producing the film capacitor element

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Embodiment Construction

[0029] In order to further illustrate the present invention, specific embodiments of the present invention will be described with reference to the accompanying drawings.

[0030] first, figure 1 One embodiment of a film capacitor element according to the invention is shown in vertical section. like figure 1 As shown, the thin film capacitor element 10 of this embodiment includes a metallized film 15 including a metal vapor-deposited film 14a and a resin film 12 serving as a dielectric film on the surface of the metal vapor-deposited film 14a. Film capacitor element 10 further includes, on metallized film 15 , metal vapor-deposition film 14 b on the side opposite to metal vapor-deposition film 14 a (the other surface of resin film 12 ) and vapor-deposited polymer film 16 on metal vapor-deposition film 14 b. That is, in the present embodiment, thin film capacitor element 10 is a laminate including metal vapor-deposition film 14a, resin film 12, metal vapor-deposition film 14b,...

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Abstract

A film capacitor element is provided which has a smaller size and higher capacity while securing the sufficient withstand voltage at a high level and which can be efficiently produced. The film capacitor element including a laminated body including at least one dielectric film and at least one metal deposition film. The at least one dielectric includes at least one vapor-deposited polymer film. The at least vapor-deposited polymer film is formed by a deposition polymerization of a plurality of monomers each having a structure in which two benzene rings are linked via a linking group.

Description

[0001] This application is based on Japanese Patent Application No. 2011-089441 filed on April 13, 2011, the contents of which are incorporated herein by reference. technical field [0002] The present invention relates to a thin film capacitor element, a thin film capacitor and a method of manufacturing the thin film capacitor element. More specifically, the present invention relates to a film capacitor element including a laminated body including at least one dielectric film and at least one metal vapor-deposited film; a method of manufacturing such a film capacitor element; and by using such a film capacitor element Obtained film capacitors. Background technique [0003] Conventionally, film capacitors are used in various electrical appliances. There are two types of film capacitors: stacked film capacitors and wound film capacitors. For example, JP-A-10-208972 discloses a stacked film capacitor obtained by stacking laminates (metallized films) each including a dielectr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G4/33H01G4/18
CPCH01G4/18H01G4/145H01L28/40
Inventor 寺岛旭人伊藤薰早川宗孝
Owner KOJIMA PRESS IND CO LTD
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