JPS5680876A - Magnetic bubble memory chip - Google Patents

Magnetic bubble memory chip

Info

Publication number
JPS5680876A
JPS5680876A JP15551679A JP15551679A JPS5680876A JP S5680876 A JPS5680876 A JP S5680876A JP 15551679 A JP15551679 A JP 15551679A JP 15551679 A JP15551679 A JP 15551679A JP S5680876 A JPS5680876 A JP S5680876A
Authority
JP
Japan
Prior art keywords
memory chip
pattern
low temperature
bubble memory
magnetic bubble
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
JP15551679A
Other languages
Japanese (ja)
Other versions
JPS6160500B2 (en
Inventor
Koji Igarashi
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 JP15551679A priority Critical patent/JPS5680876A/en
Publication of JPS5680876A publication Critical patent/JPS5680876A/en
Publication of JPS6160500B2 publication Critical patent/JPS6160500B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Thin Magnetic Films (AREA)

Abstract

PURPOSE: To obtain a chip having no deterioration of a bubble driving force in a low temperature side by striking into ions beforehand onto a transfer gate part and then forming a pattern and enhancing the temperature coefficient.
CONSTITUTION: In a magnetic bubble memory chip, onto the part of a uniaxial anisotropic magnetic material corresponding to a transfer gate 6, where a pattern is formed together with a major loop 5, a minor loop 7, etc. by a metallic thin film, ions are driven into by an ion implantation method before the pattern is formed. Therefore, the temprature coefficient is enhanced and even in the case of low temperature, the margin of the bias magnetic field of the part of the gate 6 is not lowered but a magnetic bubble memory chip having no deterioration of a bubble driving force at a low temperature side, is obtained.
COPYRIGHT: (C)1981,JPO&Japio
JP15551679A 1979-12-03 1979-12-03 Magnetic bubble memory chip Granted JPS5680876A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15551679A JPS5680876A (en) 1979-12-03 1979-12-03 Magnetic bubble memory chip

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15551679A JPS5680876A (en) 1979-12-03 1979-12-03 Magnetic bubble memory chip

Publications (2)

Publication Number Publication Date
JPS5680876A true JPS5680876A (en) 1981-07-02
JPS6160500B2 JPS6160500B2 (en) 1986-12-20

Family

ID=15607756

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15551679A Granted JPS5680876A (en) 1979-12-03 1979-12-03 Magnetic bubble memory chip

Country Status (1)

Country Link
JP (1) JPS5680876A (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4986899A (en) * 1972-12-27 1974-08-20
JPS5054252A (en) * 1973-09-10 1975-05-13
JPS5180729A (en) * 1974-12-31 1976-07-14 Ibm
JPS5283140A (en) * 1975-12-31 1977-07-11 Ibm Magnetic bubble domain device and method of fabricating same
JPS5379444A (en) * 1976-12-24 1978-07-13 Fujitsu Ltd Magnetic bubble element
JPS5384532A (en) * 1976-12-30 1978-07-26 Ibm Bubble domain transfer device
JPS5421133A (en) * 1977-07-16 1979-02-17 Philips Nv Magnetic layer and method of producing same

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4986899A (en) * 1972-12-27 1974-08-20
JPS5054252A (en) * 1973-09-10 1975-05-13
JPS5180729A (en) * 1974-12-31 1976-07-14 Ibm
JPS5283140A (en) * 1975-12-31 1977-07-11 Ibm Magnetic bubble domain device and method of fabricating same
JPS5379444A (en) * 1976-12-24 1978-07-13 Fujitsu Ltd Magnetic bubble element
JPS5384532A (en) * 1976-12-30 1978-07-26 Ibm Bubble domain transfer device
JPS5421133A (en) * 1977-07-16 1979-02-17 Philips Nv Magnetic layer and method of producing same

Also Published As

Publication number Publication date
JPS6160500B2 (en) 1986-12-20

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