BE903054A - Procede destine a l'enlevage de films de cuivre sur des plaquettes ou cartes de circuits imprimes avec recuperation par electrolyse du cuivre contenu dans la solution caustique - Google Patents
Procede destine a l'enlevage de films de cuivre sur des plaquettes ou cartes de circuits imprimes avec recuperation par electrolyse du cuivre contenu dans la solution caustiqueInfo
- Publication number
- BE903054A BE903054A BE6/48129A BE6048129A BE903054A BE 903054 A BE903054 A BE 903054A BE 6/48129 A BE6/48129 A BE 6/48129A BE 6048129 A BE6048129 A BE 6048129A BE 903054 A BE903054 A BE 903054A
- Authority
- BE
- Belgium
- Prior art keywords
- copper
- caustic solution
- circuit boards
- boards
- films
- Prior art date
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title abstract 3
- 239000003518 caustics Substances 0.000 title abstract 3
- 229910052802 copper Inorganic materials 0.000 title abstract 3
- 239000010949 copper Substances 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 2
- 238000005868 electrolysis reaction Methods 0.000 title 1
- 238000011084 recovery Methods 0.000 title 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- SWLVFNYSXGMGBS-UHFFFAOYSA-N ammonium bromide Chemical compound [NH4+].[Br-] SWLVFNYSXGMGBS-UHFFFAOYSA-N 0.000 abstract 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 abstract 1
- 229910052794 bromium Inorganic materials 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 230000001427 coherent effect Effects 0.000 abstract 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 abstract 1
- 230000000384 rearing effect Effects 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 235000012431 wafers Nutrition 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F1/00—Etching metallic material by chemical means
- C23F1/46—Regeneration of etching compositions
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F1/00—Etching metallic material by chemical means
- C23F1/10—Etching compositions
- C23F1/14—Aqueous compositions
- C23F1/32—Alkaline compositions
- C23F1/34—Alkaline compositions for etching copper or alloys thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Metallurgy (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- ing And Chemical Polishing (AREA)
- Manufacturing Of Printed Circuit Boards (AREA)
- Catalysts (AREA)
- Manufacturing Of Printed Wiring (AREA)
- Chemically Coating (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
Procédé destiné à l'enlevage de films de cuivre sur des plaquettes ou cartes de circuits imprimés par utilisation d'une solution de sulfate de cuivre ammoniacale, suivant lequel la solution caustique contient en plus une substance renfermant du brome en tant que catalyseur permettant d'augmenter la vitesse d'attaque ou d'enlevage, en particulier du NH4Br ou du CH3CHBrCOBr. Une telle solution caustique permet la séparation électrolytique du cuivre ductile suivant une couche cohérente, aisément détachable d'électrodes en acier spécial.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19843429902 DE3429902A1 (de) | 1984-08-14 | 1984-08-14 | Verfahren zum aetzen von kupferfilmen auf leiterplatten unter elektrolytischer rueckgewinnung von kupfer aus der aetzloesung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE903054A true BE903054A (fr) | 1985-12-02 |
Family
ID=6243027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE6/48129A BE903054A (fr) | 1984-08-14 | 1985-08-12 | Procede destine a l'enlevage de films de cuivre sur des plaquettes ou cartes de circuits imprimes avec recuperation par electrolyse du cuivre contenu dans la solution caustique |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JPS61106782A (fr) |
| AT (1) | AT387590B (fr) |
| BE (1) | BE903054A (fr) |
| BR (1) | BR8503833A (fr) |
| DE (1) | DE3429902A1 (fr) |
| FR (1) | FR2569205A1 (fr) |
| GB (1) | GB2163101A (fr) |
| IT (1) | IT1185341B (fr) |
| NL (1) | NL8502245A (fr) |
| SE (1) | SE8503594L (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8840773B2 (en) | 2011-06-17 | 2014-09-23 | Empire Technology Development LLP | Reclaiming metal from articles |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT395177B (de) * | 1990-07-05 | 1992-10-12 | Provera Gmbh | Aetzloesung |
| US5431776A (en) * | 1993-09-08 | 1995-07-11 | Phibro-Tech, Inc. | Copper etchant solution additives |
| CH689018A5 (it) * | 1994-09-08 | 1998-07-31 | Ecochem Ag | Procedimento di elettroestrazione di metalli pesanti. |
| DE102006036888A1 (de) * | 2005-11-10 | 2007-05-16 | Eve Recycling Sarl | Regenerierbare Ätzlösung |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3324450A1 (de) * | 1983-07-07 | 1985-01-17 | ELO-CHEM Ätztechnik GmbH, 7758 Meersburg | Ammoniumsulfathaltige aetzloesung sowie verfahren zur regeneration der aetzloesung |
| DE3340342A1 (de) * | 1983-11-08 | 1985-05-15 | ELO-CHEM Ätztechnik GmbH, 7758 Meersburg | Verfahren und anlage zum regenerieren einer ammoniakalischen aetzloesung |
-
1984
- 1984-08-14 DE DE19843429902 patent/DE3429902A1/de not_active Withdrawn
-
1985
- 1985-07-18 GB GB08518145A patent/GB2163101A/en not_active Withdrawn
- 1985-07-25 SE SE8503594A patent/SE8503594L/ not_active Application Discontinuation
- 1985-07-31 IT IT21796/85A patent/IT1185341B/it active
- 1985-08-09 JP JP60174390A patent/JPS61106782A/ja active Pending
- 1985-08-12 BE BE6/48129A patent/BE903054A/fr not_active IP Right Cessation
- 1985-08-13 NL NL8502245A patent/NL8502245A/nl not_active Application Discontinuation
- 1985-08-13 AT AT0235785A patent/AT387590B/de not_active IP Right Cessation
- 1985-08-13 FR FR8512442A patent/FR2569205A1/fr not_active Withdrawn
- 1985-08-13 BR BR8503833A patent/BR8503833A/pt unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8840773B2 (en) | 2011-06-17 | 2014-09-23 | Empire Technology Development LLP | Reclaiming metal from articles |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3429902A1 (de) | 1986-02-27 |
| JPS61106782A (ja) | 1986-05-24 |
| SE8503594D0 (sv) | 1985-07-25 |
| ATA235785A (de) | 1988-07-15 |
| BR8503833A (pt) | 1986-05-27 |
| AT387590B (de) | 1989-02-10 |
| IT8521796A0 (it) | 1985-07-31 |
| NL8502245A (nl) | 1986-03-03 |
| IT1185341B (it) | 1987-11-12 |
| GB2163101A (en) | 1986-02-19 |
| FR2569205A1 (fr) | 1986-02-21 |
| SE8503594L (sv) | 1986-02-15 |
| GB8518145D0 (en) | 1985-08-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RE | Patent lapsed |
Owner name: HANS HOLLMULLER MASCHINENBAU G.M.B.H. & CO Effective date: 19870831 |