GB1349796A - Electrolytic gold plating solutions and methods utilising such solutions - Google Patents
Electrolytic gold plating solutions and methods utilising such solutionsInfo
- Publication number
- GB1349796A GB1349796A GB2811771A GB2811771A GB1349796A GB 1349796 A GB1349796 A GB 1349796A GB 2811771 A GB2811771 A GB 2811771A GB 2811771 A GB2811771 A GB 2811771A GB 1349796 A GB1349796 A GB 1349796A
- Authority
- GB
- United Kingdom
- Prior art keywords
- solutions
- solution
- electroplating
- june
- gold
- 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
- C25D3/48—Electroplating: Baths therefor from solutions of gold
Landscapes
- Chemical & Material Sciences (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
1349796 Electroplating with gold SEL-REX CORP 16 June 1971 [29 June 1970] 28117/71 Heading C7B Gold is electroplated from a solution having a ph of at least 6À5 and comprising a goldcyanide complex and 1-140 mg of thallium per litre of plating solution. The Au can be deposited without co-deposition of the Tl. The Au may be provided by KAu(CN) 2 or NaAu(CN) 2 . Suitable sources of T1 are thallous and thallic salts such as the sulphides, chlorides nitrates and fluosilicates. The pH may be adjusted by adding HCl, HBr, H 3 PO 4 or organic acids such as formic, citric, acetic, tartaric or gluconic acids. These may be employed as partially neutralized materials using reactants such as NH 4 , Na or K hydroxides or (NH 4 ) 2 CO 3 . The solution may contain a conducting salt which may also act as a buffering material. E.g. it may contain sulphate, sulphamate, formate, acetate, citrate, lactate, tartrate, fluoborate, borate or phosphate ions provided by a metal salt. The electroplating may be at a current density of 1-200 amps/sq.ft. The temperature of operation may be 100-180‹ F.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US5096970A | 1970-06-29 | 1970-06-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1349796A true GB1349796A (en) | 1974-04-10 |
Family
ID=21968602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2811771A Expired GB1349796A (en) | 1970-06-29 | 1971-06-16 | Electrolytic gold plating solutions and methods utilising such solutions |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US3644184A (en) |
| JP (1) | JPS5534235B1 (en) |
| AT (1) | AT313663B (en) |
| BE (1) | BE768886A (en) |
| CA (1) | CA929481A (en) |
| CH (1) | CH525963A (en) |
| DE (1) | DE2131815A1 (en) |
| DK (1) | DK133791B (en) |
| ES (1) | ES392679A1 (en) |
| FR (1) | FR2096799B1 (en) |
| GB (1) | GB1349796A (en) |
| NL (1) | NL149861B (en) |
| SE (1) | SE360888B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2142344A (en) * | 1983-06-27 | 1985-01-16 | American Chem & Refining Co | Gold plating baths containing tartrate and carbonate salts |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3833488A (en) * | 1971-08-20 | 1974-09-03 | Auric Corp | Gold electroplating baths and process |
| US4435253A (en) * | 1983-01-28 | 1984-03-06 | Omi International Corporation | Gold sulphite electroplating solutions and methods |
| DE3905705A1 (en) * | 1989-02-24 | 1990-08-30 | Degussa | BATHROOM FOR GALVANIC DEPOSITION OF FINE GOLD COATINGS |
| US5755947A (en) * | 1996-01-31 | 1998-05-26 | The United States Of America As Represented By The Secretary Of The Navy | Adhesion enhancement for underplating problem |
| CN102517614B (en) * | 2011-12-20 | 2014-11-19 | 安徽华东光电技术研究所 | Plating solution formula for electroplating gold on aluminum-silicon alloy and electroplating method thereof |
-
1970
- 1970-06-29 US US50969A patent/US3644184A/en not_active Expired - Lifetime
-
1971
- 1971-06-11 CH CH859571A patent/CH525963A/en not_active IP Right Cessation
- 1971-06-16 GB GB2811771A patent/GB1349796A/en not_active Expired
- 1971-06-23 BE BE768886A patent/BE768886A/en not_active IP Right Cessation
- 1971-06-23 DE DE19712131815 patent/DE2131815A1/en not_active Withdrawn
- 1971-06-24 SE SE08283/71A patent/SE360888B/xx unknown
- 1971-06-26 ES ES392679A patent/ES392679A1/en not_active Expired
- 1971-06-28 NL NL717108893A patent/NL149861B/en not_active IP Right Cessation
- 1971-06-28 DK DK316771AA patent/DK133791B/en unknown
- 1971-06-28 AT AT05592/71A patent/AT313663B/en not_active IP Right Cessation
- 1971-06-29 JP JP4757871A patent/JPS5534235B1/ja active Pending
- 1971-06-29 CA CA116933A patent/CA929481A/en not_active Expired
- 1971-06-29 FR FR7124926*A patent/FR2096799B1/fr not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2142344A (en) * | 1983-06-27 | 1985-01-16 | American Chem & Refining Co | Gold plating baths containing tartrate and carbonate salts |
Also Published As
| Publication number | Publication date |
|---|---|
| DK133791C (en) | 1976-12-06 |
| AT313663B (en) | 1974-01-15 |
| SE360888B (en) | 1973-10-08 |
| JPS5534235B1 (en) | 1980-09-05 |
| FR2096799B1 (en) | 1976-02-06 |
| ES392679A1 (en) | 1974-07-16 |
| FR2096799A1 (en) | 1972-02-25 |
| NL7108893A (en) | 1971-12-31 |
| CH525963A (en) | 1972-07-31 |
| CA929481A (en) | 1973-07-03 |
| US3644184A (en) | 1972-02-22 |
| DK133791B (en) | 1976-07-19 |
| NL149861B (en) | 1976-06-15 |
| DE2131815A1 (en) | 1972-01-05 |
| BE768886A (en) | 1971-11-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| 732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
| PE20 | Patent expired after termination of 20 years |