MD814C2 - Process for aluminum microarc anodizing - Google Patents
Process for aluminum microarc anodizingInfo
- Publication number
- MD814C2 MD814C2 MD96-0351A MD960351A MD814C2 MD 814 C2 MD814 C2 MD 814C2 MD 960351 A MD960351 A MD 960351A MD 814 C2 MD814 C2 MD 814C2
- Authority
- MD
- Moldova
- Prior art keywords
- current density
- aluminum
- microarc
- porosity
- decrease
- Prior art date
Links
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title abstract 2
- 229910052782 aluminium Inorganic materials 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 238000007743 anodising Methods 0.000 title 1
- 238000002048 anodisation reaction Methods 0.000 abstract 2
- 239000011248 coating agent Substances 0.000 abstract 2
- 238000000576 coating method Methods 0.000 abstract 2
- 239000004411 aluminium Substances 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 229940005740 hexametaphosphate Drugs 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000004377 microelectronic Methods 0.000 abstract 1
- 239000000758 substrate Substances 0.000 abstract 1
Landscapes
- Insulated Metal Substrates For Printed Circuits (AREA)
Abstract
The invention relates to the aluminium anodization and may be applied in microelectronics for hybrid integrated circuit [ IC ] substrates manufacture.The purpose of the invention is the decrease of the coating roughness and porosity. The process is done in the microarc operation at the current density up to 15 A/dm2 and the labour voltage of 400-700 V. The decrease of the coating roughness and porosity is attained by anodization in the aqueous solution comprising 1,4-1,6 mass. % of hexametaphosphate, with the application of the pulsate voltage, which is raised up to the effective values within 5-8 min, then is reduced with 10-15% after decreasing the current density with 4-5 A/dm2 and is removed completely after reducing the current density up to 0,2-0,4 A/ dm2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MD96-0351A MD814C2 (en) | 1986-03-18 | 1996-10-25 | Process for aluminum microarc anodizing |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU4057022 | 1986-03-18 | ||
| MD96-0351A MD814C2 (en) | 1986-03-18 | 1996-10-25 | Process for aluminum microarc anodizing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| MD814B1 MD814B1 (en) | 1997-08-31 |
| MD814C2 true MD814C2 (en) | 1997-10-31 |
Family
ID=26640670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MD96-0351A MD814C2 (en) | 1986-03-18 | 1996-10-25 | Process for aluminum microarc anodizing |
Country Status (1)
| Country | Link |
|---|---|
| MD (1) | MD814C2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3293158A (en) * | 1963-09-17 | 1966-12-20 | Mcneill William | Anodic spark reaction processes and articles |
| SU926083A1 (en) * | 1980-01-04 | 1982-05-07 | Институт Неорганической Химии Со Ан Ссср | Method for electrolytically applying silicate coatings |
-
1996
- 1996-10-25 MD MD96-0351A patent/MD814C2/en active IP Right Grant
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3293158A (en) * | 1963-09-17 | 1966-12-20 | Mcneill William | Anodic spark reaction processes and articles |
| SU926083A1 (en) * | 1980-01-04 | 1982-05-07 | Институт Неорганической Химии Со Ан Ссср | Method for electrolytically applying silicate coatings |
Also Published As
| Publication number | Publication date |
|---|---|
| MD814B1 (en) | 1997-08-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG4A | Patent for invention issued | ||
| IF99 | Valid patent on 19990615 |
Free format text: EXPIRES: 20060318 |