MD940200A - Electrolytically regenerated solution for printed circuit boards etching - Google Patents
Electrolytically regenerated solution for printed circuit boards etchingInfo
- Publication number
- MD940200A MD940200A MD94-0200A MD940200A MD940200A MD 940200 A MD940200 A MD 940200A MD 940200 A MD940200 A MD 940200A MD 940200 A MD940200 A MD 940200A
- Authority
- MD
- Moldova
- Prior art keywords
- etching
- printed circuit
- circuit boards
- regenerated solution
- vanadium
- Prior art date
Links
- 238000005530 etching Methods 0.000 title abstract 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 abstract 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 2
- 239000003054 catalyst Substances 0.000 abstract 2
- 229910052802 copper Inorganic materials 0.000 abstract 2
- 239000010949 copper Substances 0.000 abstract 2
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 abstract 2
- 229910052720 vanadium Inorganic materials 0.000 abstract 2
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 abstract 1
- 229910000881 Cu alloy Inorganic materials 0.000 abstract 1
- 229910021529 ammonia Inorganic materials 0.000 abstract 1
- 235000019270 ammonium chloride Nutrition 0.000 abstract 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 abstract 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 abstract 1
- 239000001166 ammonium sulphate Substances 0.000 abstract 1
- 235000011130 ammonium sulphate Nutrition 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 150000003682 vanadium compounds Chemical class 0.000 abstract 1
Landscapes
- ing And Chemical Polishing (AREA)
- Manufacturing Of Printed Circuit Boards (AREA)
Abstract
It is proposed an electrolytically regenerated solution for printed circuit boards and shaped parts of copper and copper alloys with the copper tetraminesulphate content, as well as ammonia, ammonium sulphate, ammonium chloride, if appropriate ammonium nitrate as well as increasing the catalyst etching speed.According to the invention such composition for etching is characterized by the content of vanadium or vanadium compound as a catalyst, in an amount of 1 mg to 99 mg/l of etching solution recalculated for vanadium.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT0143390A AT395177B (en) | 1990-07-05 | 1990-07-05 | RESOLUTION |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| MD940200A true MD940200A (en) | 1996-01-31 |
Family
ID=62142642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MD94-0200A MD940200A (en) | 1990-07-05 | 1994-07-12 | Electrolytically regenerated solution for printed circuit boards etching |
Country Status (1)
| Country | Link |
|---|---|
| MD (1) | MD940200A (en) |
-
1994
- 1994-07-12 MD MD94-0200A patent/MD940200A/en unknown
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