GB872785A - Immersion plating with noble metals - Google Patents

Immersion plating with noble metals

Info

Publication number
GB872785A
GB872785A GB37489/57A GB3748957A GB872785A GB 872785 A GB872785 A GB 872785A GB 37489/57 A GB37489/57 A GB 37489/57A GB 3748957 A GB3748957 A GB 3748957A GB 872785 A GB872785 A GB 872785A
Authority
GB
United Kingdom
Prior art keywords
specified
alloys
silver
nickel
buffering
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
GB37489/57A
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.)
Engelhard Industries Inc
Original Assignee
Engelhard Industries Inc
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
Application filed by Engelhard Industries Inc filed Critical Engelhard Industries Inc
Publication of GB872785A publication Critical patent/GB872785A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/31—Coating with metals
    • C23C18/42—Coating with noble metals

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemically Coating (AREA)
  • Electroplating And Plating Baths Therefor (AREA)

Abstract

An aqueous immersion plating solution contains a soluble salt of a noble metal (Au, Ag, Pt, Pd, Rh, Ru, Os, Ir), an ammonium buffering and complexing agent, and a chelating agent. Specified noble metal salts are sodium and potassium gold cyanide, potassium silver cyanide, silver acetate, and palladium and platinum diamino nitrites. Specified buffering and complexing agents are ammonium hydroxide, citrate, borate and tartrate. Specified chelating agents are urea, ethylenedinitrilo tetraacetic acid and its tetrasodium salt, acetamide, cyanoacetamide, dicyandiamide, sulphosalicylic acid, ethylenediamine and ethyl acetoacetate. Materials which may be plated are nickel, nickel-plated brass, copper, copper alloys, cadmium, zinc, aluminium, aluminium alloys, silver alloys, steel, tungsten, diecast metals, solders, pewter, and metallized plastics. The plating may alternatively serve as an intermediate layer for a second metal coating.
GB37489/57A 1957-04-17 1957-12-02 Immersion plating with noble metals Expired GB872785A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US872785XA 1957-04-17 1957-04-17

Publications (1)

Publication Number Publication Date
GB872785A true GB872785A (en) 1961-07-12

Family

ID=22204208

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37489/57A Expired GB872785A (en) 1957-04-17 1957-12-02 Immersion plating with noble metals

Country Status (1)

Country Link
GB (1) GB872785A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3266929A (en) * 1962-12-17 1966-08-16 Shipley Co Gold plating by immersion
US3364064A (en) * 1962-08-08 1968-01-16 Philips Corp Method of improving the solderability of a nickel surface
DE1298826B (en) * 1963-02-05 1969-07-03 Siemens Ag Acid bath solution containing palladium (ó�) ions for the germination of surfaces of metallic or non-metallic bodies preactivated with tin (ó�) chloride
WO1999018253A2 (en) * 1997-10-08 1999-04-15 Atotech Deutschland Gmbh Method and solution for producing gold coating
AU763373B2 (en) * 1998-05-04 2003-07-17 BWXT ITG Canada, Inc. Production of palladium-103
EP1416065A1 (en) * 2002-08-30 2004-05-06 Shipley Company LLC Plating method

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3364064A (en) * 1962-08-08 1968-01-16 Philips Corp Method of improving the solderability of a nickel surface
US3266929A (en) * 1962-12-17 1966-08-16 Shipley Co Gold plating by immersion
DE1298826B (en) * 1963-02-05 1969-07-03 Siemens Ag Acid bath solution containing palladium (ó�) ions for the germination of surfaces of metallic or non-metallic bodies preactivated with tin (ó�) chloride
WO1999018253A2 (en) * 1997-10-08 1999-04-15 Atotech Deutschland Gmbh Method and solution for producing gold coating
WO1999018253A3 (en) * 1997-10-08 1999-10-07 Atotech Deutschland Gmbh Method and solution for producing gold coating
US6336962B1 (en) 1997-10-08 2002-01-08 Atotech Deutschland Gmbh Method and solution for producing gold coating
AU763373B2 (en) * 1998-05-04 2003-07-17 BWXT ITG Canada, Inc. Production of palladium-103
EP1416065A1 (en) * 2002-08-30 2004-05-06 Shipley Company LLC Plating method

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