IE36303L - Gold alloy electrodeposition - Google Patents
Gold alloy electrodepositionInfo
- Publication number
- IE36303L IE36303L IE720513A IE51372A IE36303L IE 36303 L IE36303 L IE 36303L IE 720513 A IE720513 A IE 720513A IE 51372 A IE51372 A IE 51372A IE 36303 L IE36303 L IE 36303L
- Authority
- IE
- Ireland
- Prior art keywords
- switches
- seconds
- complex
- stepping
- gold
- Prior art date
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
- C25D3/62—Electroplating: Baths therefor from solutions of alloys containing more than 50% by weight of gold
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/18—Electroplating using modulated, pulsed or reversing current
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/60—Electroplating characterised by the structure or texture of the layers
- C25D5/615—Microstructure of the layers, e.g. mixed structure
- C25D5/617—Crystalline layers
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/627—Electroplating characterised by the visual appearance of the layers, e.g. colour, brightness or mat appearance
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S204/00—Chemistry: electrical and wave energy
- Y10S204/09—Wave forms
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Electroplating Methods And Accessories (AREA)
- Electroplating And Plating Baths Therefor (AREA)
Abstract
1381192 Semi-conductor circuits SCHERING AG 29 March 1972 [24 April 1971] 14808/72 Heading H3T [Also in Division C7] A gold alloy, e.g. Au-Cu-, Au-Cu-Cd or Au-Ag-Ni-Pd, is electrodeposited by causing to act upon a gold plating electrolyte of constant composition, preferably containing alkali metal (e.g. K) dicyanoaurate-I and one or more complex-bound elements of Group IVa or Va or Group Ib, IIb or VIIb of the Periodic Table or mixtures thereof, a succession of periodically recurring voltage impulses having durations of 10<SP>-3</SP> to 10<SP>-4</SP> seconds preceded by deposition potentials of not less than 0À1 seconds and followed by virtually potential-less periods of 10<SP>-1</SP> to 10<SP>-3</SP> seconds. The amplitudes of the impulses may be the same or different and greater than the deposition potentials by 1 to 5 volts. The complex-bound element may be present in the electrolyte as cyanide with free KCN, or when As, Sb, Sn or Pb, as a hexahydroxy complex. Gold alloys specified are (a) 70-85% Au, 12-22% Cu and 3-8% Cd; and (b) 83-90% Au, 7-11% Ag, 0À5-1À0% Pd and 2À5-5À0% Ni. A variable polarizing voltage for electrodeposition is produced by stepping a switching signal in cyclic succession along conductors with first switches and second switches connected thereto and responsive to the signal to generate respective polarizing voltages and timing signals changing at respective rates, preferably adjusted by potentiometers connected to the switches. An integrator, reset with each stepping of the switching signal, may be connected to the second switches to produce the timing signals.
[GB1381192A]
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2121150A DE2121150C3 (en) | 1971-04-24 | 1971-04-24 | Process for the electrodeposition of gold alloys |
Publications (2)
Publication Number | Publication Date |
---|---|
IE36303L true IE36303L (en) | 1972-10-24 |
IE36303B1 IE36303B1 (en) | 1976-09-29 |
Family
ID=5806389
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IE513/72A IE36303B1 (en) | 1971-04-24 | 1972-04-18 | Electrodeposition of gold alloys |
Country Status (12)
Country | Link |
---|---|
US (1) | US3749650A (en) |
JP (1) | JPS544895B1 (en) |
AT (1) | AT313664B (en) |
CA (1) | CA984330A (en) |
CH (1) | CH555412A (en) |
DE (1) | DE2121150C3 (en) |
FR (1) | FR2134401B1 (en) |
GB (1) | GB1381192A (en) |
IE (1) | IE36303B1 (en) |
IT (1) | IT951424B (en) |
NL (1) | NL7205546A (en) |
SE (1) | SE393821B (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4105527A (en) * | 1975-07-07 | 1978-08-08 | Nipki Po Tzvetna Metalurgia | Electric system for electric extraction of non-ferrous metals from their solutions |
CH629542A5 (en) * | 1976-09-01 | 1982-04-30 | Inoue Japax Res | METHOD AND DEVICE FOR GALVANIC MATERIAL DEPOSITION. |
US4082622A (en) * | 1977-04-20 | 1978-04-04 | Gte Automatic Electric Laboratories Incorporated | Electrodeposition of ruthenium |
JPS5653267A (en) * | 1979-09-29 | 1981-05-12 | Takiyasu Kk | Production of fancy postdyed fabric |
DE3020765A1 (en) * | 1980-05-31 | 1981-12-10 | Degussa Ag, 6000 Frankfurt | ALKALINE BATH FOR GALVANIC DEPOSITION OF LOW-CARAINE PINK TO YELLOW-COLORED GOLD ALLOY LAYERS |
US4343684A (en) * | 1980-12-19 | 1982-08-10 | Stanley Lechtzin | Method of electroforming and product |
US4840711A (en) * | 1981-01-13 | 1989-06-20 | Metafuse Limited | Process for the fusion of one element into a second element |
US4465564A (en) * | 1983-06-27 | 1984-08-14 | American Chemical & Refining Company, Inc. | Gold plating bath containing tartrate and carbonate salts |
CH710184B1 (en) | 2007-09-21 | 2016-03-31 | Aliprandini Laboratoires G | Process for obtaining a yellow gold alloy deposit by electroplating without the use of toxic metals or metalloids. |
ITTO20070704A1 (en) * | 2007-10-05 | 2009-04-06 | Create New Technology S R L | SYSTEM AND METHOD OF PLATING METAL ALLOYS BY GALVANIC TECHNOLOGY |
EP2312021B1 (en) | 2009-10-15 | 2020-03-18 | The Swatch Group Research and Development Ltd. | Method for obtaining a deposit of a yellow gold alloy by galvanoplasty without using toxic metals |
US8877630B1 (en) * | 2013-11-12 | 2014-11-04 | Chipmos Technologies Inc. | Semiconductor structure having a silver alloy bump body and manufacturing method thereof |
-
1971
- 1971-04-24 DE DE2121150A patent/DE2121150C3/en not_active Expired
- 1971-11-02 CH CH1596071A patent/CH555412A/en not_active IP Right Cessation
-
1972
- 1972-01-04 JP JP405272A patent/JPS544895B1/ja active Pending
- 1972-03-29 GB GB1480872A patent/GB1381192A/en not_active Expired
- 1972-04-14 US US00244209A patent/US3749650A/en not_active Expired - Lifetime
- 1972-04-15 IT IT23156/72A patent/IT951424B/en active
- 1972-04-18 IE IE513/72A patent/IE36303B1/en unknown
- 1972-04-21 FR FR7214182A patent/FR2134401B1/fr not_active Expired
- 1972-04-21 SE SE7205273A patent/SE393821B/en unknown
- 1972-04-24 NL NL7205546A patent/NL7205546A/xx active Search and Examination
- 1972-04-24 CA CA140,417A patent/CA984330A/en not_active Expired
- 1972-04-24 AT AT358172A patent/AT313664B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
IT951424B (en) | 1973-06-30 |
CH555412A (en) | 1974-10-31 |
GB1381192A (en) | 1975-01-22 |
US3749650A (en) | 1973-07-31 |
JPS544895B1 (en) | 1979-03-12 |
AT313664B (en) | 1974-02-25 |
IE36303B1 (en) | 1976-09-29 |
NL7205546A (en) | 1972-10-26 |
CA984330A (en) | 1976-02-24 |
DE2121150C3 (en) | 1980-08-21 |
FR2134401B1 (en) | 1975-10-24 |
DE2121150A1 (en) | 1972-11-16 |
FR2134401A1 (en) | 1972-12-08 |
DE2121150B2 (en) | 1979-12-20 |
SE393821B (en) | 1977-05-23 |
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