GB1194980A - Electroless Plating Bath Preparation - Google Patents

Electroless Plating Bath Preparation

Info

Publication number
GB1194980A
GB1194980A GB2942668A GB2942668A GB1194980A GB 1194980 A GB1194980 A GB 1194980A GB 2942668 A GB2942668 A GB 2942668A GB 2942668 A GB2942668 A GB 2942668A GB 1194980 A GB1194980 A GB 1194980A
Authority
GB
United Kingdom
Prior art keywords
solution
ions
bath
moles
solution containing
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
GB2942668A
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of GB1194980A publication Critical patent/GB1194980A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/14—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates
    • H01F41/24—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates from liquids
    • 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
    • C23C18/48—Coating with alloys
    • C23C18/50—Coating with alloys with alloys based on iron, cobalt or nickel

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemically Coating (AREA)

Abstract

1,194,980. Preparation of electroless deposition bath. INTERNATIONAL BUSINESS MACHINES CORP. June 20, 1968 [Oct. 30, 1967], No. 29426/68. Heading C7F. An electroless plating bath is prepared by the steps of (1) providing a first solution containing Ni<SP>++</SP> ions and NH 4 OH dissolved in water in which the molar ratio of Ni<SP>++</SP> to NH 4 OH is in the range 0À055 to 0À16 (2) providing a second solution containing iron ions of which at least 90% are Fe<SP>+++</SP>, and the remainder Fe<SP>++</SP> and tartrate ions dissolved in water, said Fe<SP>+++</SP> to tartrate ion ratio being maintained in the range 0À02 to 0À3, and said solution being adjusted to a pH of about 10, (3) adding said second solution to said first solution, and thereafter optionally adding water to form a combined solution, (4) providing a third solution containing a reducing agent in amounts sufficient to reduce said Ni and Fe ions to their metallic state during a plating operation and adding said third solution to the combined first and second solutions. The first solution may have 0À02 to 0À4 moles Ni<SP>++</SP> per litre, and NH 4 Cl may be added to the solution to give an NH 4 <SP>+</SP>:NH 4 OH ratio of 1À0 to 1À3:1. The iron ions in the second solution may be present in an amount of from 0À003 to 0À04 moles/litre, and tartrate ions in an amount of 0À06 to 0À5 moles / litre, whilst the third solution may contain 0À024 to 0À25 moles H 2 PO 2 <SP>-</SP> per litre. The bath is used to deposit uniaxial magnetic films of Ni/Fe on substrates such as Cu, or films of Ni/Fe/Co, in which case a fourth solution containing a cobalttartrate complex is added to the bath described above, the plating process in each case being performed at 15-45‹ C. Non-conductive substrates may be sensitized by standard techniques. For optimum magnetic properties, the relative amounts of bath constituents are critical, and graphs are provided from which these amounts may be determined.
GB2942668A 1967-10-30 1968-06-20 Electroless Plating Bath Preparation Expired GB1194980A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US67889067A 1967-10-30 1967-10-30

Publications (1)

Publication Number Publication Date
GB1194980A true GB1194980A (en) 1970-06-17

Family

ID=24724720

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2942668A Expired GB1194980A (en) 1967-10-30 1968-06-20 Electroless Plating Bath Preparation

Country Status (3)

Country Link
DE (1) DE1771902A1 (en)
FR (1) FR1578187A (en)
GB (1) GB1194980A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2221698A (en) * 1988-08-10 1990-02-14 Nihon Parkerizing Metal surface treatment
AU617504B2 (en) * 1988-08-08 1991-11-28 Nihon Parkerizing Company Limited Treating zinciferous metal surfaces to blacken them and/or increase their corrosion resistance
CN114226744A (en) * 2021-11-25 2022-03-25 中国科学院金属研究所 Preparation method of permalloy powder microwave absorbent with controllable shape

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU617504B2 (en) * 1988-08-08 1991-11-28 Nihon Parkerizing Company Limited Treating zinciferous metal surfaces to blacken them and/or increase their corrosion resistance
GB2221698A (en) * 1988-08-10 1990-02-14 Nihon Parkerizing Metal surface treatment
GB2221698B (en) * 1988-08-10 1993-02-24 Nihon Parkerizing Composition and method of metal surface treatment
CN114226744A (en) * 2021-11-25 2022-03-25 中国科学院金属研究所 Preparation method of permalloy powder microwave absorbent with controllable shape

Also Published As

Publication number Publication date
DE1771902A1 (en) 1972-02-03
FR1578187A (en) 1969-08-14

Similar Documents

Publication Publication Date Title
USRE31508E (en) Electrodeposition of chromium
GB718574A (en) Bath for the deposit of gold alloys by electroplating
ES8101655A1 (en) Electroplating bath and process for producing bright, high-leveling nickel iron electrodeposits
US4278514A (en) Bright palladium electrodeposition solution
US3637474A (en) Electrodeposition of palladium
ES8606536A1 (en) Acid zinc and zinc alloy electroplating solution and process
GB1139987A (en) Method of manufacturing a magnetic thin film device
GB1194980A (en) Electroless Plating Bath Preparation
GB1464483A (en) Electrodeposition of alloys of nickel cobalt or nickel and cobalt with iron
EP0079769A1 (en) Electrodeposition of chromium and its alloys
JPH07278871A (en) Zinc-cobalt alloy alkaline plating bath and plating method using this plating bath
GB1414896A (en) Electroless copper plating
CN114164466B (en) Alkaline electrogalvanized ferroalloy additive and electroplating solution
GB859725A (en) Improvements in or relating to methods of depositing nickel-iron films
US2859159A (en) Bright copper plating bath containing mixtures of metal compounds
GB1198193A (en) Prevention of Skip Plating in an Electroless Nickel Bath
CN108425145A (en) A kind of nontoxic copper and iron base silver decoating liquid and its withdrawal plating
ES434016A1 (en) Electrodeposition of bright nickel-iron deposits
US3041254A (en) Nickel plating
GB1203131A (en) Stabilized alkaline coppering liquids for the current-less deposition of copper
US9234292B2 (en) Nickel-iron alloy plating solution
US4036651A (en) Electroless copper plating bath
US3073762A (en) Electrodeposition of cobalt phosphorus alloys
US2973308A (en) Complexed plating electrolyte and method of plating therewith
US3021266A (en) Additive for copper plating bath

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee