FR2176471A1 - Treating thin magnetic film supports - by copper electroplating, for memory elements - Google Patents

Treating thin magnetic film supports - by copper electroplating, for memory elements

Info

Publication number
FR2176471A1
FR2176471A1 FR7209612A FR7209612A FR2176471A1 FR 2176471 A1 FR2176471 A1 FR 2176471A1 FR 7209612 A FR7209612 A FR 7209612A FR 7209612 A FR7209612 A FR 7209612A FR 2176471 A1 FR2176471 A1 FR 2176471A1
Authority
FR
France
Prior art keywords
magnetic film
memory elements
copper electroplating
thin magnetic
film supports
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.)
Granted
Application number
FR7209612A
Other languages
French (fr)
Other versions
FR2176471B1 (en
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.)
Bull SA
Original Assignee
Societe Industrielle Honeywell Bull
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 Societe Industrielle Honeywell Bull filed Critical Societe Industrielle Honeywell Bull
Priority to FR7209612A priority Critical patent/FR2176471A1/en
Publication of FR2176471A1 publication Critical patent/FR2176471A1/en
Application granted granted Critical
Publication of FR2176471B1 publication Critical patent/FR2176471B1/fr
Granted 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
    • C25D3/00—Electroplating: Baths therefor
    • C25D3/02—Electroplating: Baths therefor from solutions
    • C25D3/38—Electroplating: Baths therefor from solutions of copper
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F10/00—Thin magnetic films, e.g. of one-domain structure
    • H01F10/06—Thin magnetic films, e.g. of one-domain structure characterised by the coupling or physical contact with connecting or interacting conductors

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Thin Magnetic Films (AREA)

Abstract

The electrolyte contg. is not >250 g/l CuSO45H2O and >=5(25) g/l HF (density 1.13) at constant temp. and at a constant current density depending on temp. and Hf conc. gives a Cu layer of thickness >=2.5 mu m and grain-thickness 1-3 mu m so that the magnetic film thereafter deposited has uniaxial anisotropy increased coercive field.
FR7209612A 1972-03-20 1972-03-20 Treating thin magnetic film supports - by copper electroplating, for memory elements Granted FR2176471A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7209612A FR2176471A1 (en) 1972-03-20 1972-03-20 Treating thin magnetic film supports - by copper electroplating, for memory elements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7209612A FR2176471A1 (en) 1972-03-20 1972-03-20 Treating thin magnetic film supports - by copper electroplating, for memory elements

Publications (2)

Publication Number Publication Date
FR2176471A1 true FR2176471A1 (en) 1973-11-02
FR2176471B1 FR2176471B1 (en) 1974-10-18

Family

ID=9095468

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7209612A Granted FR2176471A1 (en) 1972-03-20 1972-03-20 Treating thin magnetic film supports - by copper electroplating, for memory elements

Country Status (1)

Country Link
FR (1) FR2176471A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB950401A (en) * 1961-12-12 1964-02-26 Ncr Co The process of fabricating magnetic circuit devices
CH507569A (en) * 1967-08-09 1971-05-15 Honeywell Inc Magnetic memory element and method for its manufacture

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB950401A (en) * 1961-12-12 1964-02-26 Ncr Co The process of fabricating magnetic circuit devices
CH507569A (en) * 1967-08-09 1971-05-15 Honeywell Inc Magnetic memory element and method for its manufacture

Also Published As

Publication number Publication date
FR2176471B1 (en) 1974-10-18

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