Patent US5454147A successfully refreshed from Google Patents.
US5454147A
Expired / Lapsed
US
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Method of manufacturing solid electrolytic capacitor
Assignee: Tokin Corp
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Filing: 1994-11-25
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Granted: 1995-10-03
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Expires: 2014-11-25
Abstract
Abstract The invention provides a method of manufacturing a solid electrolytic capacitor, including the steps of forming an oxide film serving as dielectric substance around a porous compact composed of valve action metal having an anode lead projecting therefrom, forming a resist layer around the anode lead and on a portion of the porous compact disposed in the vicinity of the anode lead, forming a conducting polymer compound layer on both the resist layer and the oxide film, and removing concurrently the resist layer and a part of the conducting polymer compound layer disposed on the resist layer. For instance, when the resist layer is composed of glass, the resist layer is removed by applying mechanical impact thereto.
Inventors
- 👤 Atsushi Kobayashi
- 👤 Takashi Fukaumi
- 👤 Koji Sakata
- 👤 Satoshi Arai
- 👤 Toshihiko Nishiyama
- 👤 Takashi Kono
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:29
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/004; H01G9/008; H01G9/012; H01G9/15
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
94 words
A method of manufacturing a solid electrolytic capacitor, comprising the steps of: forming an oxide film serving as dielectric substance around a porous compact composed of valve action metal having an anode lead projecting therefrom; forming a resist layer around said anode lead and on a portion of said porous compact disposed in the vicinity of said anode lead; forming a conducting polymer compound layer on both said resist layer and said oxide film; and removing concurrently said resist layer and a part of said conducting polymer compound layer disposed on said resist layer.
Claim 2
Independent Claim
94 words
A method of manufacturing a solid electrolytic capacitor, comprising the steps of: forming an oxide film serving as dielectric substance around a porous compact composed of valve action metal having an anode lead projecting therefrom; forming a resist layer around said anode lead and on a portion of said porous compact disposed in the vicinity of said anode lead; forming a conducting polymer compound layer on both said resist layer and said oxide film; and removing concurrently said resist layer and a part of said conducting polymer compound layer disposed on said resist layer.
Claim 3
Dependent Claim
54 words
The method as recited in claim 1, wherein said resist layer is composed of any one of materials selected from a group consisting of thermally fusible organic compound, organic compound having a photodissociation property, organic compound having a thermal decomposition property, acid-soluble organic compound, alkali-soluble organic compound, solvent-soluble organic compound and solvent-swollen organic compound.
Claim 4
Dependent Claim
15 words
The method as recited in claim 1, wherein said resist layer is composed of glass.
Claim 5
Dependent Claim
18 words
The method as recited in claim 3, wherein said resist layer is removed by applying mechanical impact thereto.
Claim 6
Dependent Claim
30 words
The method as recited in claim 1 further including the steps of: forming a carbon layer on said conducting polymer compound layer; and attaching an electrode to said carbon layer.
Claim 7
Dependent Claim
15 words
The method as recited in claim 1, wherein said resist layer is composed of paraffin.
Claim 8
Dependent Claim
20 words
The method as recited in claim 6, wherein said resist layer is removed by blowing a high temperature air thereto.
Claim 9
Dependent Claim
18 words
The method as recited in claim 7, wherein said air has 120 degrees centigrade or more of temperature.
Claim 10
Dependent Claim
17 words
The method as recited in claim 7, wherein said air is accelerated by passing through a nozzle.
Claim 11
Dependent Claim
16 words
The method as recited in claim 1, wherein said resist layer is composed of butadiene resin.
Claim 12
Dependent Claim
15 words
The method as recited in claim 10, wherein said resist layer is removed by heating.
Claim 13
Dependent Claim
24 words
The method as recited in claim 11, said resist layer and said conducting polymer compound layer is heated at 300 degrees centigrade or more.
Claim 14
Dependent Claim
22 words
The method as recited in claim 10, wherein said resist layer is removed by heating and further blowing a pressurized air thereto.
Claim 15
Dependent Claim
17 words
The method as recited in claim 1, wherein said resist layer is composed of cresol novolak resin.
Claim 16
Dependent Claim
22 words
The method as recited in claim 14, wherein said resist layer is removed by soaking said two layers in sodium hydroxide solution.
Claim 17
Dependent Claim
16 words
The method as recited in claim 1, wherein said resist layer is composed of epoxy resin.
Claim 18
Dependent Claim
22 words
The method as recited in claim 16, wherein said resist layer is removed by ultrasonically cleaning said two layers in pure water.
References Cited (Backward Citations)
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1998-10-02 | 1999-04-03 | 1999-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-10-02 | 2003-04-03 | 2003-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-10-02 | 2007-04-03 | 2007-10-03 | $7700.00 | Window Closed / Lapsed |