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Sumio Ikegawa
Sumio Ikegawa
Everspin Technologies, Inc.
Verified email at everspin.com
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Year
Spin transfer switching in TbCoFe∕ CoFeB∕ MgO∕ CoFeB∕ TbCoFe magnetic tunnel junctions with perpendicular magnetic anisotropy
M Nakayama, T Kai, N Shimomura, M Amano, E Kitagawa, T Nagase, ...
Journal of Applied Physics 103 (7), 2008
4012008
Lower-current and fast switching of a perpendicular TMR for high speed and high density spin-transfer-torque MRAM
T Kishi, H Yoda, T Kai, T Nagase, E Kitagawa, M Yoshikawa, K Nishiyama, ...
2008 IEEE International Electron Devices Meeting, 1-4, 2008
3142008
A 64Mb MRAM with clamped-reference and adequate-reference schemes
K Tsuchida, T Inaba, K Fujita, Y Ueda, T Shimizu, Y Asao, T Kajiyama, ...
ISSCC 2010/SESSION 14/NON-VOLATILE MEMORY/14.2, 2010
2652010
High efficient spin transfer torque writing on perpendicular magnetic tunnel junctions for high density MRAMs
H Yoda, T Kishi, T Nagase, M Yoshikawa, K Nishiyama, E Kitagawa, ...
Current Applied Physics 10 (1), e87-e89, 2010
1982010
Magnetoresistive random access memory: Present and future
S Ikegawa, FB Mancoff, J Janesky, S Aggarwal
IEEE Transactions on Electron Devices 67 (4), 1407-1419, 2020
1952020
Electrical properties of single crystalline CeO2 high-k gate dielectrics directly grown on Si (111)
Y Nishikawa, N Fukushima, N Yasuda, K Nakayama, S Ikegawa
Japanese journal of applied physics 41 (4S), 2480, 2002
1152002
Demonstration of a reliable 1 Gb standalone spin-transfer torque MRAM for industrial applications
S Aggarwal, H Almasi, M DeHerrera, B Hughes, S Ikegawa, J Janesky, ...
2019 IEEE International Electron Devices Meeting (IEDM), 2.1. 1-2.1. 4, 2019
952019
Magnetoresistive element
M Nakayama, T Kai, T Kishi, Y Fukuzumi, T Nagase, S Ikegawa, H Yoda
US Patent 8,009,465, 2011
812011
Ion beam etching technology for high-density spin transfer torque magnetic random access memory
K Sugiura, S Takahashi, M Amano, T Kajiyama, M Iwayama, Y Asao, ...
Japanese Journal of Applied Physics 48 (8S1), 08HD02, 2009
772009
Magnetoresistance effect element and magnetic random access memory
M Nakayama, T Kai, S Ikegawa, H Yoda, T Kishi
US Patent 8,279,663, 2012
762012
Magnetoresistance effect element and magnetic random access memory
M Nakayama, T Kai, S Ikegawa, H Yoda, T Kishi
US Patent 8,014,193, 2011
582011
CMOS-embedded STT-MRAM arrays in 2x nm nodes for GP-MCU applications
D Shum, D Houssameddine, ST Woo, YS You, J Wong, KW Wong, ...
2017 Symposium on VLSI Technology, T208-T209, 2017
562017
Magnetoresistive effect device and magnetic memory
J Ozeki, N Shimomura, S Ikegawa, T Kai, M Nakayama, H Aikawa, T Kishi, ...
US Patent 8,223,533, 2012
552012
Magnetoresistive effect element
M Nagamine, K Hosotani, H Aikawa, T Ueda, S Ikegawa
US Patent App. 12/100,097, 2008
552008
Technology for reliable spin-torque MRAM products
JM Slaughter, K Nagel, R Whig, S Deshpande, S Aggarwal, M DeHerrera, ...
2016 IEEE International Electron Devices Meeting (IEDM), 21.5. 1-21.5. 4, 2016
452016
Magnetoresistive element and magnetic random access memory
M Nakayama, H Yoda, T Kishi, J Ozeki, T Kai, H Aikawa, S Ikegawa
US Patent App. 13/781,529, 2013
422013
Ion-beam-etched profile control of MTJ cells for improving the switching characteristics of high-density MRAM
S Takahashi, T Kai, N Shimomura, T Ueda, M Amano, M Yoshikawa, ...
IEEE transactions on magnetics 42 (10), 2745-2747, 2006
422006
Unified understanding of both thermally assisted and precessional spin-transfer switching in perpendicularly magnetized giant magnetoresistive nanopillars
H Tomita, S Miwa, T Nozaki, S Yamashita, T Nagase, K Nishiyama, ...
Applied Physics Letters 102 (4), 2013
402013
High-speed spin-transfer switching in GMR nano-pillars with perpendicular anisotropy
H Tomita, T Nozaki, T Seki, T Nagase, K Nishiyama, E Kitagawa, ...
IEEE Transactions on Magnetics 47 (6), 1599-1602, 2011
382011
Effects of Zn substitution for Cu on superconducting and normal-state properties of (La, Sr) 2 CuO 4,(Nd, Ce, Sr) 2 CuO 4, and (Nd, Ce) 2 CuO 4
S Ikegawa, T Yamashita, T Sakurai, R Itti, H Yamauchi, S Tanaka
Physical Review B 43 (4), 2885, 1991
371991
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