JPS5792478A - Producing method for hold magnetic field of magnetic bubble memory - Google Patents

Producing method for hold magnetic field of magnetic bubble memory

Info

Publication number
JPS5792478A
JPS5792478A JP16753680A JP16753680A JPS5792478A JP S5792478 A JPS5792478 A JP S5792478A JP 16753680 A JP16753680 A JP 16753680A JP 16753680 A JP16753680 A JP 16753680A JP S5792478 A JPS5792478 A JP S5792478A
Authority
JP
Japan
Prior art keywords
magnetic field
layer
hold
bubble memory
pattern
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.)
Pending
Application number
JP16753680A
Other languages
Japanese (ja)
Inventor
Akira Hirano
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP16753680A priority Critical patent/JPS5792478A/en
Publication of JPS5792478A publication Critical patent/JPS5792478A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C19/00—Digital stores in which the information is moved stepwise, e.g. shift registers
    • G11C19/02—Digital stores in which the information is moved stepwise, e.g. shift registers using magnetic elements
    • G11C19/08—Digital stores in which the information is moved stepwise, e.g. shift registers using magnetic elements using thin films in plane structure
    • G11C19/085—Generating magnetic fields therefor, e.g. uniform magnetic field for magnetic domain stabilisation

Landscapes

  • Thin Magnetic Films (AREA)

Abstract

PURPOSE:To improve start/stop characteristics by establishing a hold magnetic field with optional intensity by providing a semihard magnetic material layer on a driving pattern. CONSTITUTION:A garnet type magnetic crystal layer is formed on GGG crystal 4 and on a layer 3, an insulating layer 5 is formed; and conductor pattern 6 is formed on it, an insulating layer 7 is further provided, and a permalloy pattern. On this driving pattern, a hold magnetic layer 9 made of Ni-Co alloy is formed and an SiO2 protective film 10 is further provided to obtain a bubble memory chip. After an external magnetic field is applied in the optional horizontal direction of the chip to saturate the layer 9, the direction of the external magnetic field is inverted to apply a magnetic field H1, which is then cut off. Consequently, the layer 9 operates as a hold magnetic field. Then, the intensity of the external magnetic field is decreased to H2 to magnetize the layer 9, decreasing the hold magnetic field.
JP16753680A 1980-11-28 1980-11-28 Producing method for hold magnetic field of magnetic bubble memory Pending JPS5792478A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16753680A JPS5792478A (en) 1980-11-28 1980-11-28 Producing method for hold magnetic field of magnetic bubble memory

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16753680A JPS5792478A (en) 1980-11-28 1980-11-28 Producing method for hold magnetic field of magnetic bubble memory

Publications (1)

Publication Number Publication Date
JPS5792478A true JPS5792478A (en) 1982-06-09

Family

ID=15851510

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16753680A Pending JPS5792478A (en) 1980-11-28 1980-11-28 Producing method for hold magnetic field of magnetic bubble memory

Country Status (1)

Country Link
JP (1) JPS5792478A (en)

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