Thin film magnetic memory device including memory cells...

Static information storage and retrieval – Systems using particular element – Magnetoresistive

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C365S171000, C365S173000

Reexamination Certificate

active

11187910

ABSTRACT:
In a tunneling magneto-resistance element, first and second free magnetic layers have a magnetization direction according to storage data. The first and second magnetic layers are arranged with an intermediate layer interposed therebetween. The intermediate layer is formed from a non-magnetic conductor. In data write operation, a data write current having a direction according to a write data level is supplied to the intermediate layer. A magnetic field generated by the current flowing through the intermediate layer magnetizes the first and second free magnetic layers with a looped manner.

REFERENCES:
patent: 6052263 (2000-04-01), Gill
patent: 6166948 (2000-12-01), Parkin et al.
patent: 6252796 (2001-06-01), Lenssen et al.
patent: 6272041 (2001-08-01), Naji
patent: 6335890 (2002-01-01), Reohr et al.
patent: 6445612 (2002-09-01), Naji
patent: 6532163 (2003-03-01), Okazawa
patent: 6567299 (2003-05-01), Kunikiyo et al.
patent: 6678187 (2004-01-01), Sugibayashi et al.
patent: 1245952 (2000-03-01), None
patent: WO 02/19336 (2002-03-01), None
Scheuerlein, R. et al., “A 10ns Read and Write Non-Volatile Memory Array Using a Magnetic Tunnel Junction and FET Switch in each Cell” , IEE International Solid-State Circuits Conference, Feb. 7-9, 2000, p. 128-129 (front page only).
Durlam, M. et al., “Nonvolatile RAM based on Magnetic Tunnel Junction Elements”, IEEE International Solid-State Circuits Conference., Feb. 7-9, 2000, pp. 130-131 (front page only).
Inomata, Koichiro., “Present and Future of Magnetic RAM Technology”, IEICE Trans. Electron, vol. E84-C, No. 6, Jun. 2001, pp. 740-746.
Tehrani, S. et al., “Recent Developments in Magnetic Tunnel Junction MRAM” IEEE Transactions on Magnetics, vol. 36, No. 5, Sep. 2000, pp. 2752-2757.
Naji, P. et al., “Nonvolatile Magnetoresistive RAM”, IEEE International Solid-State Circuits Conference, Feb. 5-7, 2001, pp. 122-123 (front page only).
Scheuerlein, Roy E. , “Magneto-Resistive IC Memory Limitations and Architecture Implications” Proc 7th IEEE International Nonvolatile Memory Technology Conference, 1998, pp. 47-50.
Itoh, Kiyoo et al., “Reviews and Prospects of High-Density RAM Technology”, International Semiconductor Conference, vol. 1, pp. 10-14, Oct. 2000, vol. 1.
Scheuerlein et al., “A 10ns Read and Write Non-Volatile Memory Array Using a Magnetic Tunnel Junction and FET Switch in Each Cell”, ISSCC Digest of Technical Papers, TA7.2, Feb. 2000, pp. 94-95, 128-129, 409-410.
Durlam et al., “Nonvolatile RAM based on Magnetic Tunnel Junction Elements”, ISSCC Digest of Technical Papers, TA7.3, Feb. 2000, pp. 96-97, 130-131, 410-411.
Naji et al., A 256kb 3.0V 1T1MJ Nonvolatile Magnetoresistive RAM, ISSCC Digest of Technical Papers, TA7.6, Feb. 2001, pp. 94-95, 122-123, 404-405, 438.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Thin film magnetic memory device including memory cells... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Thin film magnetic memory device including memory cells..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thin film magnetic memory device including memory cells... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3908896

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.