Static information storage and retrieval – Systems using particular element – Magnetoresistive
Reexamination Certificate
2005-10-25
2005-10-25
Auduong, Gene N. (Department: 2818)
Static information storage and retrieval
Systems using particular element
Magnetoresistive
C365S170000, C257S295000
Reexamination Certificate
active
06958930
ABSTRACT:
A new magnetic spin device can be used as a memory element or logic gate, such as an OR, AND, NOT, NOR and NAND gate. The state of the magnetic spin device is set inductively. A magnetic spin transistor/gate can be operated with current gain. Furthermore, inductive coupling permits the linking of multiple spin transistors and spin transistor gates to perform combinational tasks. A half adder embodiment is specifically described, and other logic gates and combinations of half adders can be constructed to perform arithmetic functions as part of a microprocessor.
REFERENCES:
patent: 3650581 (1972-03-01), Boden et al.
patent: 4314349 (1982-02-01), Batcher
patent: 4360899 (1982-11-01), Dimyan et al.
patent: 4607271 (1986-08-01), Popovic et al.
patent: 4663607 (1987-05-01), Kitada et al.
patent: 4700211 (1987-10-01), Popovic et al.
patent: 4780848 (1988-10-01), Daughton et al.
patent: 4896296 (1990-01-01), Turner et al.
patent: 4905178 (1990-02-01), Mor et al.
patent: 5089991 (1992-02-01), Matthews
patent: 5173873 (1992-12-01), Wu et al.
patent: 5237529 (1993-08-01), Spitzer
patent: 5239504 (1993-08-01), Brady et al.
patent: 5245226 (1993-09-01), Hood et al.
patent: 5245227 (1993-09-01), Furtek et al.
patent: 5251170 (1993-10-01), Daughton et al.
patent: 5289410 (1994-02-01), Katti et al.
patent: 5329480 (1994-07-01), Wu et al.
patent: 5329486 (1994-07-01), Lage
patent: 5396455 (1995-03-01), Brady et al.
patent: 5420819 (1995-05-01), Pohm
patent: 5424236 (1995-06-01), Daughton et al.
patent: 5432373 (1995-07-01), Johnson
patent: 5452163 (1995-09-01), Coffey et al.
patent: 5475277 (1995-12-01), Johnson
patent: 5488250 (1996-01-01), Hennig
patent: 5491338 (1996-02-01), Spitzer
patent: 5565695 (1996-10-01), Johnson
patent: 5580814 (1996-12-01), Larson
patent: 5594366 (1997-01-01), Khong et al.
patent: 5621338 (1997-04-01), Liu et al.
patent: 5629549 (1997-05-01), Johnson
patent: 5629922 (1997-05-01), Moodera et al.
patent: 5640343 (1997-06-01), Gallagher et al.
patent: 5652445 (1997-07-01), Johnson
patent: 5652875 (1997-07-01), Taylor
patent: 5654566 (1997-08-01), Johnson
patent: 5926414 (1999-07-01), McDowell et al.
patent: 5998040 (1999-12-01), Nakatani et al.
patent: 6064083 (2000-05-01), Johnson
patent: 6178112 (2001-01-01), Bessho et al.
patent: 6205008 (2001-03-01), Gijs et al.
patent: 6342713 (2002-01-01), Johnson
patent: 6381170 (2002-04-01), Prinz
patent: 6388916 (2002-05-01), Johnson
patent: 6741494 (2004-05-01), Johnson
patent: 6753562 (2004-06-01), Hsu et al.
R. Meservey, P. M. Tedrow and P. Fulde, Phys. Rev. Lett. 25, 1270 (1970).
P.M. Tedrow and R. Meservey, Phys. Rev. Lett. 26, 192 (1971).
Paul Horowitz and Winfield Hill,The Art of Electronics, Cambridge Univ. Press, Cambridge U.K. (1980); see p. 328.
Mark Johnson and R. H. Silsbee,Interfacial Charge-Spin Coupling; Injection and Detection of Spin Magnetization in Metals, Phys. Rev. Lett. 55, 1790 (1985). (4 pages).
Mark Johnson and R. H. Silsbee,A Thermodynamic Analysis of Interfacial Transport and of the Thermomagnetoelectric System, Phys. Rev. B 35, 4959 (1987). (14 pages).
P. C. van Son, H. van Kampen and P. Wyder, Phys. Rev. Lett. 58, 2271 (1987). (3 pages).
Mark Johnson and R. H. Silsbee,Ferromagnet-NonFerromagnet Interface Resistance, Phys. Rev. Lett. 60, 377 (1988).
Mark Johnson and R. H. Silsbee,Coupling of Electronic Charge and Spin at a Ferromagnetic -Paramagnetic Metal Interface, Phys. Rev. B 37, 5312 (1988). (14 pages).
Mark Johnson and R. H. Silsbee,The Spin Injection Experiment, Phys. Rev. B 37, 5326 (1988). (10 pages).
Mark Johnson and H. Silsbee,Electron Spin Injection and Detection at a Ferromagnetic-Paramagnetic Interface, J. Appl. Phys. 63, 3934 (1988). (6 pages).
P.C. van Son, H. van Kampen and P. Wyder, Phys. Rev. Lett. 60, 378 (1988).
R. S. Popovic,Hall-effect Devices, Sens. Actuators 17, 39 (1989).
James Daughton,Magnetoresistive Memory Technology, Thin Solid Films 216, 162 (1992). (7 pages).
J. De Boeck, J. Harbison et al.,Non-volatile Memory Charateristics of Submicrometer Hall Structures Fabricated in Epitaxial Ferromagnetic MnA1 Films on GaAs, Electronics Letters 29, 421 (1993). (3 pages).
Mark Johnson,Spin Accumulation in Gold Films, Phys. Rev. Lett. 70, 2142 (1993). (4 pages).
Mark Johnson,Bipolar Spin Switch, Science 260, 320 (1993). (4 pages).
Mark Johnson,Bilayer Embodiment of the Bipolar Spin Switch, Appl. Phys. Lett. 63, 1435 (1993). (3 pages).
Mark Johnson,The All-Metal Spin Transistor, I.E.E.E. Spectrum Magazine 31 No. 5, 47 (1994). (5 pages).
Mark Johnson,Spin Polarization of Gold Films via Transport, J. Appl. Phys. 75, 6714 (1994). (6 pages).
Mark Johnson,Spin-Coupled Resistance Observed in Ferromagnet-Superconductor-Ferromagnet Trilayers, Appl. Phys. Lett., Sep. 12, 1994.
Mark Johnson,The Bipolar Spin Transistor, I.E.E.E. Potentials 14, 26 (1995).
S. T. Chui and J. R. Cullen,Spin Transmission in Metallic Trilayers, Phys. Rev. Lett. 74, 2118 (1995). (4 pages).
Auduong Gene N.
Gross J. Nicholas
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