JPS55117784A - Magnetic bubble memory unit - Google Patents

Magnetic bubble memory unit

Info

Publication number
JPS55117784A
JPS55117784A JP2503479A JP2503479A JPS55117784A JP S55117784 A JPS55117784 A JP S55117784A JP 2503479 A JP2503479 A JP 2503479A JP 2503479 A JP2503479 A JP 2503479A JP S55117784 A JPS55117784 A JP S55117784A
Authority
JP
Japan
Prior art keywords
chips
crystal
memory unit
gdga
substrate
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
JP2503479A
Other languages
Japanese (ja)
Other versions
JPS6049996B2 (en
Inventor
Shunsuke Matsuyama
Kenzo Imamura
Tomoyuki Mori
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 JP2503479A priority Critical patent/JPS6049996B2/en
Publication of JPS55117784A publication Critical patent/JPS55117784A/en
Publication of JPS6049996B2 publication Critical patent/JPS6049996B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To improve start/stop characteristics of bubbles of a memory unit by providing chips, where various patterns have been formed, on a substrate cut tilting slightly to the crystal surface of a GdGa single-crystal bowl.
CONSTITUTION: By cutting a GdGa single-crystal bowl slanting to (111) crystal surface 12 at slight angle (α) (e.g, 0.18°≤) in parallel, GdGa garnet substrates 13 are obtained. The top and reverse surfaces of base body 13 are polished, magnetic thin film 14 is formed in the liquid-phase growing method, etc., and then patterns for the generation, transfer, detection, erasure, etc., of bubbles are formed as many as chips. At this time, the slanting direction of the (111) crystal axis of substrate 13 should agree with the start/stop direction and substrate 13 is separated into chips 15 by cutting. Using those chips 15 improves the assembly accuracy of a magnetic bubble memory unit and also miniaturizes the unit.
COPYRIGHT: (C)1980,JPO&Japio
JP2503479A 1979-03-06 1979-03-06 magnetic bubble memory device Expired JPS6049996B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2503479A JPS6049996B2 (en) 1979-03-06 1979-03-06 magnetic bubble memory device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2503479A JPS6049996B2 (en) 1979-03-06 1979-03-06 magnetic bubble memory device

Publications (2)

Publication Number Publication Date
JPS55117784A true JPS55117784A (en) 1980-09-10
JPS6049996B2 JPS6049996B2 (en) 1985-11-06

Family

ID=12154616

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2503479A Expired JPS6049996B2 (en) 1979-03-06 1979-03-06 magnetic bubble memory device

Country Status (1)

Country Link
JP (1) JPS6049996B2 (en)

Also Published As

Publication number Publication date
JPS6049996B2 (en) 1985-11-06

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