GB766413A - Improvements relating to electrolytic capacitors - Google Patents
Improvements relating to electrolytic capacitorsInfo
- Publication number
- GB766413A GB766413A GB2092/55A GB209255A GB766413A GB 766413 A GB766413 A GB 766413A GB 2092/55 A GB2092/55 A GB 2092/55A GB 209255 A GB209255 A GB 209255A GB 766413 A GB766413 A GB 766413A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- stage
- bath
- mixture
- weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000003990 capacitor Substances 0.000 title abstract 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 abstract 6
- 238000000034 method Methods 0.000 abstract 4
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 abstract 3
- 239000000203 mixture Substances 0.000 abstract 3
- WYXIGTJNYDDFFH-UHFFFAOYSA-Q triazanium;borate Chemical compound [NH4+].[NH4+].[NH4+].[O-]B([O-])[O-] WYXIGTJNYDDFFH-UHFFFAOYSA-Q 0.000 abstract 3
- 229910052715 tantalum Inorganic materials 0.000 abstract 2
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 abstract 2
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 abstract 1
- 238000007743 anodising Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/0029—Processes of manufacture
- H01G9/0032—Processes of manufacture formation of the dielectric layer
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
- Formation Of Insulating Films (AREA)
Abstract
766,413. Anodizing tantalum; electrolytic capacitors. GENERAL ELECTRIC CO. Jan. 24, 1955 [Jan. 25, 1954], No. 2092/55. Drawings to Specification. Classes 37 and 41. A method of forming a dielectric film on a tantalum capacitor electrode comprises subjecting the electrode to a forming voltage in an electrolytic bath, then to an oxidizing atmosphere, e.g. air, at a temperature of 200‹ to 500‹ C., and lastly to a forming voltage in an electrolytic bath. The temperatures of the baths are preferably equal and between 85‹ and 200‹ C., e.g. 100‹ C. Each electrolytic treatment may comprise a single-stage or a two-stage process. If a single-stage, the bath may comprise 12 per cent ammonium borate, 58 per cent ethylene glycol and 30 per cent triethanolamine by weight, the mixture being heated until the ammonium borate is dissolved and heating continued until 60 per cent by weight of the mixture has evaporated. If a two-stage process is used, the mixture in the first stage thereof may comprise (by weight) 5 to 15 per cent water, 10 to 25 per cent ammonium borate and the balance ethylene glycol or diethylene glycol, the bath for the second stage being that described above for the single-stage process.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US766413XA | 1954-01-25 | 1954-01-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB766413A true GB766413A (en) | 1957-01-23 |
Family
ID=22133310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2092/55A Expired GB766413A (en) | 1954-01-25 | 1955-01-24 | Improvements relating to electrolytic capacitors |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE535091A (en) |
| FR (1) | FR1118228A (en) |
| GB (1) | GB766413A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1273696B (en) * | 1956-09-10 | 1968-07-25 | Siemens Ag | Electrolyte for an electrolytic capacitor with low operating voltage |
-
0
- BE BE535091D patent/BE535091A/xx unknown
-
1955
- 1955-01-24 GB GB2092/55A patent/GB766413A/en not_active Expired
- 1955-01-25 FR FR1118228D patent/FR1118228A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1118228A (en) | 1956-06-01 |
| BE535091A (en) |
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