GB962281A - Gold-plating process - Google Patents

Gold-plating process

Info

Publication number
GB962281A
GB962281A GB12053/62A GB1205362A GB962281A GB 962281 A GB962281 A GB 962281A GB 12053/62 A GB12053/62 A GB 12053/62A GB 1205362 A GB1205362 A GB 1205362A GB 962281 A GB962281 A GB 962281A
Authority
GB
United Kingdom
Prior art keywords
gold
sintering
metal
plating
group viii
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
Application number
GB12053/62A
Inventor
William Brian Glass
David John Hunter
Donald Limer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Mobility Ltd
Original Assignee
Westinghouse Brake and Signal Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to BE630274D priority Critical patent/BE630274A/xx
Application filed by Westinghouse Brake and Signal Co Ltd filed Critical Westinghouse Brake and Signal Co Ltd
Priority to GB12053/62A priority patent/GB962281A/en
Priority to FR929429A priority patent/FR1352044A/en
Publication of GB962281A publication Critical patent/GB962281A/en
Expired legal-status Critical Current

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
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/10—Electroplating with more than one layer of the same or of different metals
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/02—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material
    • C23C28/023—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material only coatings of metal elements only

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrochemistry (AREA)
  • Mechanical Engineering (AREA)
  • Electroplating And Plating Baths Therefor (AREA)
  • Electroplating Methods And Accessories (AREA)

Abstract

A metal body such as a contact for a semi-conductor device is produced by plating a metal base such as Mo, W, or Ta with a Group VIII metal, sintering, plating with gold and again sintering. Preferably the Group VIII metal is Ni or Co and the plating of such metal and sintering may be effected one or more times and then followed one or more times by gold plating and sintering. As described the metal base is cleaned chemically or electrolytically to give an oxide-free surface and then both metals are plated out by electrolysis, the Group VIII metal being Ni from a Watts bath and gold being plated from a bath containing per litre 17 gms. of each of potassium gold cyanide, potassium cyanide and sodium pyrophosphate, and sintering is effected by heating at 800 DEG C. in hydrogen.
GB12053/62A 1962-03-29 1962-03-29 Gold-plating process Expired GB962281A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE630274D BE630274A (en) 1962-03-29
GB12053/62A GB962281A (en) 1962-03-29 1962-03-29 Gold-plating process
FR929429A FR1352044A (en) 1962-03-29 1963-03-27 Electrolytic coating process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB12053/62A GB962281A (en) 1962-03-29 1962-03-29 Gold-plating process

Publications (1)

Publication Number Publication Date
GB962281A true GB962281A (en) 1964-07-01

Family

ID=9997572

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12053/62A Expired GB962281A (en) 1962-03-29 1962-03-29 Gold-plating process

Country Status (3)

Country Link
BE (1) BE630274A (en)
FR (1) FR1352044A (en)
GB (1) GB962281A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4551184A (en) * 1983-06-13 1985-11-05 Inco Limited Process for obtaining a composite material and composite material obtained by said process

Also Published As

Publication number Publication date
BE630274A (en)
FR1352044A (en) 1964-02-07

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