Unlock instant, AI-driven research and patent intelligence for your innovation.

Metal capacitor and manufacturing method thereof

A technology of metal capacitors and metal capacitors, which is applied in the direction of capacitors, electrolytic capacitors, capacitor terminals, etc., can solve the problems of high ripple current heat generation, low conductivity, and short life, so as to reduce ripple heat generation, prolong life, The effect of low impedance

Inactive Publication Date: 2009-07-15
吴英宙
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In aluminum electrolytic capacitors, an electrolytic solution is used as an electrolyte, so there is a limitation that the conductivity is low and the life is shortened in the high-frequency region, and there are improvements in reliability, high-frequency characteristics, low loss, and low ESR (Equivalent Series Resistance: Equivalent series resistance), low impedance, etc. have limitations, and the heat caused by ripple current becomes higher, so there are limitations in terms of safety such as smoke, combustion, and environmental tolerance

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Metal capacitor and manufacturing method thereof
  • Metal capacitor and manufacturing method thereof
  • Metal capacitor and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example 》

[0032] The first embodiment of the metal capacitor of the present invention will be described below with reference to the accompanying drawings.

[0033] Figure 1a to Figure 1e is a diagram showing a metal capacitor according to a first embodiment of the present invention.

[0034] Figure 1a is a plan view of the metal capacitor according to the first embodiment of the present invention, Figure 1b to Figure 1e yes

[0035] Figure 1a A side sectional view along line A1-A2 of the metal capacitor shown.

[0036] Such as Figure 1a to Figure 1e As shown, the metal capacitor 10 of the present invention is composed of a metal member 11, a metal oxide film 12, a buried electrode member 13, and an insulating film 14, and each structure will be described below.

[0037] The metal member 11 has a plurality of grooves 11a formed on one surface, and the metal oxide film 12 is formed on the metal member 11 . A buried electrode member 13 is formed on the metal oxide film 12 so as t...

no. 2 example 》

[0051] A metal capacitor according to a second embodiment of the present invention will be described below with reference to the drawings.

[0052] Figure 4a to Figure 4d is a diagram showing a metal capacitor according to a second embodiment of the present invention.

[0053] Such as Figure 4a to Figure 4d As shown, the metal capacitors 110 , 120 , 130 , 140 according to the second embodiment of the present invention are respectively composed of a plurality of single-layer metal capacitor components 10 a. The plurality of single-layer metal capacitive components 10 a are composed of a metal component 11 , a metal oxide film 12 , a buried electrode component 13 , and an insulating film 14 . Moreover, each structural element and configuration of the single-layer metal capacitive component 10a Figure 1a to Figure 1e The metal part 11, the metal oxide film 12, the buried electrode part 13, and the insulating film 14 of the shown metal capacitor 10 according to the first embo...

no. 3 example 》

[0070] Figure 5a to Figure 5d is a diagram showing a metal capacitor according to a third embodiment of the present invention.

[0071] Such as Figure 5a to Figure 5d As shown, the metal capacitors 210, 220, 230, 240 respectively have the same Figure 4a to Figure 4d The metal capacitors 110, 120, 130, 140 according to the second embodiment of the present invention have the same structure. in particular, Figure 5c The metal capacitor 230 shown is also constructed as Figure 4c The illustrated plurality of first parallel laminated bodies 110 a and the plurality of second parallel laminated bodies 120 a are stacked in series with each other of a first parallel laminated body 210 a and a plurality of second parallel laminated bodies 220 a.

[0072] The metal oxide films 12 of the individual single-layer metal capacitor parts 10a constituting the metal capacitors 210, 220, 230, 240 according to the third embodiment of the present invention, respectively, and as Figure 4a ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Diameteraaaaaaaaaa
Login to View More

Abstract

The present invention relates to a metal capacitor in which an electric conductivity is significantly improved and a manufacturing method thereof. The metal capacitor includes a metal member where a plurality of grooves is formed on a face; a metal oxide film (12) formed on the metal member; an insulating layer formed on the metal member to expose the grooves; an electrode withdrawing member formed on the oxide film (12) to cover the grooves. The method of manufacturing a metal capacitor, comprises, when a face of the metal member is covered, forming a plurality of grooves on a face of the metal member by using one of DC etching method, AC etching method or wet etching method; forming a metal oxide layer (12) on a face with grooves of the metal member by using an anodizing method; forming an insulating layer on the metal electrode layer (12) by using a CVD method; forming an embedding electrode member for covering a plurality of grooves formed on the metal member; and connecting a plurality of first external electrodes onto the metal member and the embedding electrode member.

Description

technical field [0001] The present invention relates to a metal capacitor and its manufacturing method, and more particularly, to a metal capacitor with significantly improved electrical conductivity and its manufacturing method. Background technique [0002] Aluminum electrolytic capacitors are used to filter the power output from the power circuit to a certain value or in low-frequency bypasses. The following outlines how to manufacture them. [0003] In order to increase the surface area of ​​the aluminum foil and thereby increase the electrostatic capacity, a process of etching the surface of the aluminum foil is carried out. When the etching is complete, the molding process that forms the dielectric on the aluminum foil is performed. When the cathode and anode aluminum foils are respectively produced by etching and forming processes, a slit process is implemented to cut the aluminum foil and electrolytic paper into required size widths according to the product length. ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H01G9/025H01G9/008H01G9/04
CPCH01G9/025H01G9/042H01G9/048
Inventor 吴英宙
Owner 吴英宙