Reconfigurable magnetic logic device using spin torque

Details Reconfigurable magnetic logic device using spin torque Reconfigurable magnetic logic device using spin torque

2008-05-23

2010-12-21

Pham, Ly D (Department: 2827)

Static information storage and retrieval

Systems using particular element

Magnetoresistive

C365S066000, C365S171000, C365S173000, C365S209000, C365S225500

Reexamination Certificate

active

07855911

ABSTRACT:
Spin torque magnetic logic devices that function as memory devices and that can be reconfigured or reprogrammed as desired. In some embodiments, the logic device is a single magnetic element, having a pinned layer, a free layer, and a barrier layer therebetween, or in other embodiments, the logic device has two magnetic elements in series. Two input currents can be applied through the element to configure or program the element. In use, logic input data, such as current, is passed through the programmed element, defining the resistance across the element and the resulting logic output. The magnetic logic device can be used for an all-function-in-one magnetic chip.

REFERENCES:
patent: 6542000 (2003-04-01), Black
patent: 6744086 (2004-06-01), Daughton
patent: 6774391 (2004-08-01), Cowburn
patent: 6914807 (2005-07-01), Nakamura
patent: 7110284 (2006-09-01), Hayakawa
patent: 7224601 (2007-05-01), Panchula
patent: 7233039 (2007-06-01), Huai
patent: 7285836 (2007-10-01), Ju et al.
patent: 7502249 (2009-03-01), Ding
patent: 7539047 (2009-05-01), Katti
patent: 2005/0269612 (2005-12-01), Torok
patent: 2006/0171199 (2006-08-01), Ju
patent: 2007/0007609 (2007-01-01), Saito et al.
patent: 2007/0047294 (2007-03-01), Panchula
patent: 2007/0246787 (2007-10-01), Wang
patent: 2008/0258247 (2008-10-01), Mancoff et al.
patent: 2008/0277703 (2008-11-01), Iwayama
patent: 2009/0040855 (2009-02-01), Luo
patent: 2009/0185410 (2009-07-01), Huai
patent: 2009/0218645 (2009-09-01), Ranjan et al.
patent: 2009/0296454 (2009-12-01), Honda et al.
patent: 2009/0310213 (2009-12-01), Hing
patent: 2010/0118600 (2010-05-01), Nagase et al.
K. Miura et al., A Novel SPRAM (SPin-transfer-torque-RAM) with a Synthetic Ferrimagnetic Free Layer . . . , VLSI Symposium on VLSI Tech. Digest of Technical Papers (2007).
A. Ney et al., Programmable Computing with a Single Magnetoresistance Element, Nature 425, 485 (2003).
L. Berger, Emission of Spin Waves bya Magnetic Multilayer Traversed by a Current, Phys. Rev. B 54, 9353 (1996).
W.C. Black, Jr. et al., Programmable Logic Using Giant-Magnetroresistance and Spin-Dependent Tunneling Devices (invited), J. Appl. Phys. 87, 6674 (2000).
H. Meng et al., A Spintronics Full Adder for Magnetic CPU, IEEE Elec. Dev. Lett. 26, 360 (2005).
R.P. Cowburn et al., Room Temperature Magnetic Quantum Cellular Automata, Science 287, 1466 (2000).
U.S. Appl. No. 12/125,975, filed May 23, 2008, Inventor: Haiwen Xi, Our Ref: 13866.00.

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