Title:
SPIN DEVICE, AND OPERATING METHOD THEREFOR AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2018/080159
Kind Code:
A1
Abstract:
Disclosed are a structure and an operating method for a spin synapse device using magnetic domain wall movement by means of spin orbit torque. Magnetization reversal of a free layer of the device is enabled by means of a current having a low value by using spin orbit torque, and the structure of the device is simple compared with a conventional CMOS, and thus manufacturing is simple. In addition, disclosed is a spin synapse device to which a free layer of multi-axial anisotropy, in addition to the movement of a magnetic domain wall, is applied. Therefore, since the magnitude of resistance can be adjusted according to the size of an angle between a fixed layer and a free layer, multi-bit application is simple and application to an artificial synapse technology is possible.
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Inventors:
HONG JIN PYO (KR)
PARK HAE SOO (KR)
PARK HAE SOO (KR)
Application Number:
PCT/KR2017/011822
Publication Date:
May 03, 2018
Filing Date:
October 25, 2017
Export Citation:
Assignee:
UNIV HANYANG IND UNIV COOP FOUND (KR)
International Classes:
H01L43/08; G06N3/063; G11C11/16; G11C11/56; H01L43/02; H01L43/10; H01L43/12
Foreign References:
| KR20160089567A | 2016-07-28 | |||
| KR20150042025A | 2015-04-20 | |||
| KR20050084288A | 2005-08-26 | |||
| US20100033880A1 | 2010-02-11 | |||
| US9070455B2 | 2015-06-30 | |||
| US7869266B2 | 2011-01-11 | |||
| US7525862B1 | 2009-04-28 | |||
| US20160172581A1 | 2016-06-16 | |||
| US20150137293A1 | 2015-05-21 | |||
| US20140301135A1 | 2014-10-09 | |||
| US9373781B2 | 2016-06-21 |
Other References:
SENGUPTA, ABHRONIL ET AL.: "Proposal for an All-spin Artificial Neural Network: Emulating Neural and Synaptic Functionalities through Domain Wail Motion in Ferromagnets", IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS, 3 February 2016 (2016-02-03), pages 1 - 9, XP011638387
SENGUPTA, ABHRONIL ET AL.: "Magnetic Tunnel Junction Mimics Stochastic Cortical Spiking Neurons", SCIENTIFIC REPORTS, vol. 6, no. 30039, 21 July 2016 (2016-07-21), pages 1 - 8, XP055592192
DEBANJAN BHOWMIK: "Domain Wall Motion Orthogonal to Current Flow Due To Spin Orbit, Torque", SCIENTIFIC REPORTS, 2015
See also references of EP 3534421A4
SENGUPTA, ABHRONIL ET AL.: "Magnetic Tunnel Junction Mimics Stochastic Cortical Spiking Neurons", SCIENTIFIC REPORTS, vol. 6, no. 30039, 21 July 2016 (2016-07-21), pages 1 - 8, XP055592192
DEBANJAN BHOWMIK: "Domain Wall Motion Orthogonal to Current Flow Due To Spin Orbit, Torque", SCIENTIFIC REPORTS, 2015
See also references of EP 3534421A4
Attorney, Agent or Firm:
E-SANG PATENT & TRADEMARK LAW FIRM (KR)
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