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 Title: |
US4455626:
Thin film memory with magnetoresistive read-out
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Lutes, Olin S.; Bloomington, MN
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| Assignee: |
Honeywell Inc., Minneapolis, MN
other patents from HONEYWELL INC. (256580) (approx. 4,795)
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| Published / Filed: |
1984-06-19
/ 1983-03-21
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| Application Number: |
US1983000477056
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| IPC Code: |
Advanced:
G11C 11/14;
Core:
G11C 11/02;
IPC-7:
G11C 11/15;
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| U.S. Class: |
Current:
365/158;
365/057;
Original:
365/158;
365/057;
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| Field of Search: |
365/008,158,57
338/32 R
360/113
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| Priority Number: |
| 1983-03-21 |
US1983000477056 |
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| Abstract: |
A radiation-hard, non-volatile, thin film planar RAM structure fabricated by silicon integrated circuit processing. This memory cell construction provides a magnetoresistive readout. A magnetoresistive film sensor is positioned in the gap of a thicker flux concentrator film. A memory film and the flux concentrator film comprise a magnetic path to the MR film.
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| Attorney, Agent or Firm: |
Dahle, Omund R. ;
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| Primary / Asst. Examiners: |
Moffitt, James W.;
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| INPADOC Legal Status: |
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| Family: |
None
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First Claim:
Show all 19 claims |
The embodiments of the invention in which an exclusive property or right is claimed are defined as follows:
1. A planar thin-film magnetic memory structure on a substrate comprising:
- a magnetoresistive film sensor formed in a relatively long and narrow thin-film on the substrate;
- a magnetic circuit including magnetic film means comprising at least a memory film, said magnetic circuit defining an elongated gap at and along the position of said magnetoresistive film sensor;
- said memory film having a relatively square hysteresis loop;
- first and second "write" conductor films formed of highly conductive non-magnetic material, at least one of said "write" conductor films positioned within said magnetic circuit along said elongated gap.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 41 U.S. patent(s) that reference this one
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