MY7900005A - Gold plating electrolyte and method of electrodepositing gold in the production of semi conductor device - Google Patents
Gold plating electrolyte and method of electrodepositing gold in the production of semi conductor deviceInfo
- Publication number
- MY7900005A MY7900005A MY19795A MY7900005A MY7900005A MY 7900005 A MY7900005 A MY 7900005A MY 19795 A MY19795 A MY 19795A MY 7900005 A MY7900005 A MY 7900005A MY 7900005 A MY7900005 A MY 7900005A
- Authority
- MY
- Malaysia
- Prior art keywords
- plating
- gold
- substrates
- alkali metal
- production
- Prior art date
Links
Classifications
-
- H10W72/013—
-
- 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
-
- H10W72/073—
-
- H10W72/07336—
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)
- Electroplating Methods And Accessories (AREA)
Abstract
1506380 Gold electro-plating ENGELHARD INDUSTRIES Ltd 21 Nov 1975 [4 Dec 1974] 52520/74 Heading C7B An aqueous gold plating electrolyte solution, for plating Ni-Fe substrates, e.g. transistor headers or integrated circuit flat pack lead frames employed in producing semi-conductor devices, to permit bonding of Ge or Si chips or slices to the substrates, consists of water, Au e.g. 1 to 100 g/l as an alkali metal (preferably K) Au(CN) 2 , at least one conducting compound e.g. in total 1 to 200 g/l selected from alkali metal (e.g. Na or K) acetate, (tetra or meta) borate, orthophosphate, nitrate sulphamate, sulphate, tartrate, thiocyanate, thiosulphate and boric acid, and if required a buffer salt e.g. 1 to 200 g/l K or ammonium H 2 PO 4 . Preferably the solution has a pH 4 to 8 and density 2 to 12 degrees BÚ. Plating may be effected at a cathode CD of 1 to 2000 ASF and at 20 to 90‹C with vigorous agitation. The electrolyte may be applied only to selected areas of the substrate as a high velocity jet.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB52520/74A GB1506380A (en) | 1974-12-04 | 1974-12-04 | Gold plating electrolyte and method of electrodepositing gold in the production of semiconductor devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| MY7900005A true MY7900005A (en) | 1979-12-31 |
Family
ID=10464233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MY19795A MY7900005A (en) | 1974-12-04 | 1979-12-31 | Gold plating electrolyte and method of electrodepositing gold in the production of semi conductor device |
Country Status (14)
| Country | Link |
|---|---|
| JP (1) | JPS5198639A (en) |
| AT (1) | ATA908275A (en) |
| BE (1) | BE836293A (en) |
| CH (1) | CH606505A5 (en) |
| DE (1) | DE2554583A1 (en) |
| DK (1) | DK545375A (en) |
| ES (1) | ES443389A1 (en) |
| FR (1) | FR2293500A1 (en) |
| GB (1) | GB1506380A (en) |
| HK (1) | HK73378A (en) |
| IT (1) | IT1052476B (en) |
| MY (1) | MY7900005A (en) |
| NL (1) | NL7513699A (en) |
| SE (1) | SE7513620L (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4465564A (en) * | 1983-06-27 | 1984-08-14 | American Chemical & Refining Company, Inc. | Gold plating bath containing tartrate and carbonate salts |
-
1974
- 1974-12-04 GB GBGB52520/74A patent/GB1506380A/en not_active Expired
-
1975
- 1975-11-24 NL NL7513699A patent/NL7513699A/en not_active Application Discontinuation
- 1975-11-28 AT AT908275A patent/ATA908275A/en not_active Application Discontinuation
- 1975-12-02 CH CH1566675A patent/CH606505A5/xx not_active IP Right Cessation
- 1975-12-02 IT IT52492/75A patent/IT1052476B/en active
- 1975-12-02 FR FR7536819A patent/FR2293500A1/en active Granted
- 1975-12-03 DK DK545375A patent/DK545375A/en unknown
- 1975-12-03 SE SE7513620A patent/SE7513620L/en not_active Application Discontinuation
- 1975-12-03 ES ES443389A patent/ES443389A1/en not_active Expired
- 1975-12-04 BE BE162465A patent/BE836293A/en not_active IP Right Cessation
- 1975-12-04 DE DE19752554583 patent/DE2554583A1/en not_active Withdrawn
- 1975-12-04 JP JP50143410A patent/JPS5198639A/en active Pending
-
1978
- 1978-12-14 HK HK733/78A patent/HK73378A/en unknown
-
1979
- 1979-12-31 MY MY19795A patent/MY7900005A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| IT1052476B (en) | 1981-06-20 |
| FR2293500B1 (en) | 1980-08-01 |
| CH606505A5 (en) | 1978-10-31 |
| ES443389A1 (en) | 1977-05-01 |
| SE7513620L (en) | 1976-06-08 |
| BE836293A (en) | 1976-06-04 |
| NL7513699A (en) | 1976-06-09 |
| ATA908275A (en) | 1978-10-15 |
| JPS5198639A (en) | 1976-08-31 |
| DK545375A (en) | 1976-06-05 |
| AU8674075A (en) | 1977-05-26 |
| GB1506380A (en) | 1978-04-05 |
| FR2293500A1 (en) | 1976-07-02 |
| HK73378A (en) | 1978-12-22 |
| DE2554583A1 (en) | 1976-06-10 |
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