GB872070A - Method and apparatus for making bistable magnetic material - Google Patents

Method and apparatus for making bistable magnetic material

Info

Publication number
GB872070A
GB872070A GB14750/59A GB1475059A GB872070A GB 872070 A GB872070 A GB 872070A GB 14750/59 A GB14750/59 A GB 14750/59A GB 1475059 A GB1475059 A GB 1475059A GB 872070 A GB872070 A GB 872070A
Authority
GB
United Kingdom
Prior art keywords
magnetic material
substrate
bistable magnetic
film
making bistable
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
GB14750/59A
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.)
Sperry Corp
Original Assignee
Sperry Rand 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 Sperry Rand Corp filed Critical Sperry Rand Corp
Publication of GB872070A publication Critical patent/GB872070A/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
    • 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
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/90—Magnetic feature

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Thin Magnetic Films (AREA)

Abstract

A thin magnetic film, for use as a memory or switching device, is formed on a heated glass substrate by vacuum deposition of a nickel-iron alloy while the substrate lies in a magnetic field which varies angularly in the plane of substrate at a non-uniform speed. The film may alternatively be formed by electrolytic decomposition or thermal decomposition. Specification 845,604 is referred to.
GB14750/59A 1958-06-12 1959-04-30 Method and apparatus for making bistable magnetic material Expired GB872070A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US741696A US3065105A (en) 1958-06-12 1958-06-12 Process and apparatus for producing magnetic material and resulting article

Publications (1)

Publication Number Publication Date
GB872070A true GB872070A (en) 1961-07-05

Family

ID=24981789

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14750/59A Expired GB872070A (en) 1958-06-12 1959-04-30 Method and apparatus for making bistable magnetic material

Country Status (2)

Country Link
US (1) US3065105A (en)
GB (1) GB872070A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1764483B1 (en) * 1967-06-16 1974-06-06 Sperry Rand Corp Arrangement of several stacked, thin, ferromagnetic films of uniaxial anisotropy

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3172776A (en) * 1965-03-09 Process of making magnetic tape
US3371649A (en) * 1960-09-23 1968-03-05 Technical Ind Inc Means for controlled deposition and growth of polycrystalline films in a vacuum
US3233577A (en) * 1961-05-29 1966-02-08 Sperry Rand Corp Gettering means in a vacuum deposition device
US3240686A (en) * 1962-05-25 1966-03-15 Ibm Bistable magnetic thin film element and electrolytic process for making same
NL299926A (en) * 1962-10-31
US3336154A (en) * 1963-12-20 1967-08-15 Sperry Rand Corp Testing apparatus and method
US3342633A (en) * 1964-08-05 1967-09-19 Ibm Magnetic coating
US3342632A (en) * 1964-08-05 1967-09-19 Ibm Magnetic coating
US3305327A (en) * 1965-01-26 1967-02-21 Ibm Electroless plating of magnetic material and magnetic memory element
US3309638A (en) * 1965-05-07 1967-03-14 William V Rausch Coil arrangement for improved field uniformity
US3520721A (en) * 1967-08-30 1970-07-14 Hermsdorf Keramik Veb Thin-layered electrical printed circuits and method of manufacturing
US3525638A (en) * 1967-09-20 1970-08-25 Ibm Magnetostriction control in magnetic thin films
US3547694A (en) * 1967-12-04 1970-12-15 Lignes Telegraph Telephon Magnetic thin films manufacturing process
US4244788A (en) * 1977-06-16 1981-01-13 Burroughs Corporation Transducer-plated magnetically anisotropic metallic recording films, and associated techniques
US4144160A (en) * 1977-06-16 1979-03-13 Burroughs Corporation Apparatus for electro deposition of magnetically anisotropic metallic recording films
US5332487A (en) * 1993-04-22 1994-07-26 Digital Equipment Corporation Method and plating apparatus
US5316642A (en) * 1993-04-22 1994-05-31 Digital Equipment Corporation Oscillation device for plating system
EP0924719A3 (en) * 1997-12-17 2000-05-10 Tesla Engineering Limited Apparatus for generating magnetic fields

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1658872A (en) * 1925-01-16 1928-02-14 Henry J Yeager Electrolytic apparatus
GB328057A (en) * 1929-01-30 1930-04-24 Kurt Breusing Improvements in or relating to electrolytic processes
GB572409A (en) * 1940-09-21 1945-10-08 Donald Arthur Oliver Improvements in or relating to the manufacture of ferro-magnetic material
GB670993A (en) * 1949-06-01 1952-04-30 Bayer Ag Improvements in or relating to magnetic sound recorders
US2694167A (en) * 1951-07-10 1954-11-09 Jessop William & Sons Ltd Permanent magnet alloy
US2765161A (en) * 1952-06-03 1956-10-02 William Mungall Jig for selective hardening of steel rings
BE544005A (en) * 1954-07-27
US2853402A (en) * 1954-08-06 1958-09-23 Jr Marsden S Blois Magnetic element and method for producing the same
US2900282A (en) * 1956-07-20 1959-08-18 Sperry Rand Corp Method of treating magnetic material and resulting articles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1764483B1 (en) * 1967-06-16 1974-06-06 Sperry Rand Corp Arrangement of several stacked, thin, ferromagnetic films of uniaxial anisotropy

Also Published As

Publication number Publication date
US3065105A (en) 1962-11-20

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