JPS55117784A - Magnetic bubble memory unit - Google Patents
Magnetic bubble memory unitInfo
- 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
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
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) |
-
1979
- 1979-03-06 JP JP2503479A patent/JPS6049996B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS6049996B2 (en) | 1985-11-06 |
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