GB817037A - Improvements in process and compositions for the electroposition of copper - Google Patents
Improvements in process and compositions for the electroposition of copperInfo
- Publication number
- GB817037A GB817037A GB6470/57A GB647057A GB817037A GB 817037 A GB817037 A GB 817037A GB 6470/57 A GB6470/57 A GB 6470/57A GB 647057 A GB647057 A GB 647057A GB 817037 A GB817037 A GB 817037A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cyanide
- copper
- cuprous selenide
- bath
- selenide
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/38—Electroplating: Baths therefor from solutions of copper
- C25D3/40—Electroplating: Baths therefor from solutions of copper from cyanide baths, e.g. with Cu+
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electroplating And Plating Baths Therefor (AREA)
Abstract
817,037. Electroplating with copper. DU PONT DE NEMOURS & CO., E. I. Feb. 26, 1957 [April 30, 1956], No. 6470/57. Drawings to Specification. Class 41. In electrodepositing copper from a selenidecontaining copper cyanide plating bath, the bath composition is maintained by adding thereto a pre-formed aqueous solution prepared from cuprous selenide and an alkali or alkaline earth metal cyanide in proportions to provide by weight 0.9 part of cyanide radical per part of cuprous selenide. Preferably solid mixtures of the cyanide and cuprous selenide are dissolved in water to make the solutions. For bright deposits the bath contains 200-1000 p.p.m. of a brightener methylene-bis (naphthalene sulphonic acid) or its alkali metal salts or polymers thereof and the quantity of cuprous selenide should be sufficient to yield 2-50 p.p.m. of selenium. Periodic reverse plating as described and claimed in Specification 630,165, may be employed to obtain uniform deposits. Specification 801,460 and U.S.A. Specification 2,694,677 also are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US667015A US2861929A (en) | 1957-06-20 | 1957-06-20 | Copper plating with addition agents |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB817037A true GB817037A (en) | 1959-07-22 |
Family
ID=24676459
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6470/57A Expired GB817037A (en) | 1957-06-20 | 1957-02-26 | Improvements in process and compositions for the electroposition of copper |
| GB17404/58A Expired GB831929A (en) | 1957-06-20 | 1958-05-30 | Improvements in or relating to copper plating |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB17404/58A Expired GB831929A (en) | 1957-06-20 | 1958-05-30 | Improvements in or relating to copper plating |
Country Status (4)
| Country | Link |
|---|---|
| US (2) | US2854389A (en) |
| DE (2) | DE1101087B (en) |
| FR (2) | FR1172733A (en) |
| GB (2) | GB817037A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2955992A (en) * | 1957-08-08 | 1960-10-11 | Macdermid Inc | Bright copper plating process |
| DE1209843B (en) * | 1960-04-16 | 1966-01-27 | Hesse & Cie | Cyanidic bright copper bath |
| US3219560A (en) * | 1961-10-12 | 1965-11-23 | Allied Res Products Inc | Process and bath for electrolytic copper deposition |
| DE1195321B (en) * | 1962-03-16 | 1965-06-24 | Troponwerke Dinklage & Co | Process for the preparation of substituted quinazolone (4) derivatives |
| US3480524A (en) * | 1967-09-21 | 1969-11-25 | Kewanee Oil Co | Selenium compound and its use as a brightener in a copper plating bath |
| US3532610A (en) * | 1967-10-27 | 1970-10-06 | Kewanee Oil Co | Selenium compounds as brighteners in copper plating baths |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2732336A (en) * | 1956-01-24 | Electroplating composition for copper | ||
| US2701234A (en) * | 1951-07-11 | 1955-02-01 | Du Pont | Addition agent for copper plating |
| US2770587A (en) * | 1956-06-04 | 1956-11-13 | Elechem Corp | Bath for plating bright copper |
-
1956
- 1956-04-30 US US581762A patent/US2854389A/en not_active Expired - Lifetime
-
1957
- 1957-02-26 GB GB6470/57A patent/GB817037A/en not_active Expired
- 1957-02-26 FR FR1172733D patent/FR1172733A/en not_active Expired
- 1957-04-29 DE DEP18437A patent/DE1101087B/en active Pending
- 1957-06-20 US US667015A patent/US2861929A/en not_active Expired - Lifetime
-
1958
- 1958-05-30 GB GB17404/58A patent/GB831929A/en not_active Expired
- 1958-06-06 FR FR767382A patent/FR73696E/en not_active Expired
- 1958-06-20 DE DEP20904A patent/DE1104282B/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR1172733A (en) | 1959-02-13 |
| GB831929A (en) | 1960-04-06 |
| US2861929A (en) | 1958-11-25 |
| DE1101087B (en) | 1961-03-02 |
| FR73696E (en) | 1960-09-05 |
| DE1104282B (en) | 1961-04-06 |
| US2854389A (en) | 1958-09-30 |
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