DE3881022D1 - ELECTROPLATING PLATE AND METHOD FOR STABILIZING THE COMPOSITION OF THE PLATED ALLOY. - Google Patents
ELECTROPLATING PLATE AND METHOD FOR STABILIZING THE COMPOSITION OF THE PLATED ALLOY.Info
- Publication number
- DE3881022D1 DE3881022D1 DE8888301636T DE3881022T DE3881022D1 DE 3881022 D1 DE3881022 D1 DE 3881022D1 DE 8888301636 T DE8888301636 T DE 8888301636T DE 3881022 T DE3881022 T DE 3881022T DE 3881022 D1 DE3881022 D1 DE 3881022D1
- Authority
- DE
- Germany
- Prior art keywords
- salt
- pref
- stabilizing
- composition
- sulphate
- 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 - Fee Related
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
- C25D3/56—Electroplating: Baths therefor from solutions of alloys
- C25D3/567—Electroplating: Baths therefor from solutions of alloys containing more than 50% by weight of platinum group metals
Abstract
Pd-Ni alloy electroplating bath contains a Ni salt, a Pd salt and at least 15 ppm I-ions. The bath pref. also contains a further conductive salt and an organic brightener. The pH is pref. 7-9 and the plating current density is pref. 10-150, esp. 25-100 A/sq.ft. Specifically, Pd salt is Pd(II) ammine chloride and the Ni salt is Ni ammine sulphate, Ni sulphate or Ni chloride. The further conductive salt is (NH4)2SO4 or NH4Cl and the brightener is Na vinyl sulphonate or quaternised pyridinium. The Pd salt is first purified through at least one recrystallisation cycle. Electroplating process is claimed, in which the Pd content of the plated coating varies by less than 10wt.% over the above applied current density range.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP88301636A EP0329877B1 (en) | 1988-02-25 | 1988-02-25 | Electroplating bath and process for maintaining plated alloy composition stable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3881022D1 true DE3881022D1 (en) | 1993-06-17 |
| DE3881022T2 DE3881022T2 (en) | 1993-10-07 |
Family
ID=8199970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE88301636T Expired - Fee Related DE3881022T2 (en) | 1988-02-25 | 1988-02-25 | Electroplating bath and method for keeping the composition of the plated alloy stable. |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0329877B1 (en) |
| AT (1) | ATE89337T1 (en) |
| DE (1) | DE3881022T2 (en) |
| HK (1) | HK1000382A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE68909984T2 (en) * | 1988-04-01 | 1994-04-21 | Du Pont | Electroplated alloy coatings that have a stable alloy composition. |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3206383A (en) * | 1964-03-26 | 1965-09-14 | Kappel Mario | Electrolyte for use in the galvanic deposition of bright leveling nickel coatings |
| US3467584A (en) * | 1966-10-24 | 1969-09-16 | Ernest H Lyons Jr | Plating platinum metals on chromium |
| US4358352A (en) * | 1981-06-22 | 1982-11-09 | Mpd Technology Corporation | Electrodeposition of platinum from a cis-diamminedihaloplatinum (II) electrolyte |
| US4463060A (en) * | 1983-11-15 | 1984-07-31 | E. I. Du Pont De Nemours And Company | Solderable palladium-nickel coatings and method of making said coatings |
-
1988
- 1988-02-25 EP EP88301636A patent/EP0329877B1/en not_active Expired - Lifetime
- 1988-02-25 DE DE88301636T patent/DE3881022T2/en not_active Expired - Fee Related
- 1988-02-25 AT AT88301636T patent/ATE89337T1/en not_active IP Right Cessation
-
1997
- 1997-10-21 HK HK97101977A patent/HK1000382A1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| ATE89337T1 (en) | 1993-05-15 |
| EP0329877A1 (en) | 1989-08-30 |
| HK1000382A1 (en) | 1998-03-13 |
| DE3881022T2 (en) | 1993-10-07 |
| EP0329877B1 (en) | 1993-05-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8327 | Change in the person/name/address of the patent owner |
Owner name: BERG ELECTRONICS MANUFACTURING B.V., S'-HERTOGENBO |
|
| 8339 | Ceased/non-payment of the annual fee |