Invention Application
WO2005050653A3 STRESS ASSISTED CURRENT DRIVEN SWITCHING FOR MAGNETIC MEMORY APPLICATIONS
审中-公开
用于磁记忆应用的应力辅助电流驱动开关
- Patent Title: STRESS ASSISTED CURRENT DRIVEN SWITCHING FOR MAGNETIC MEMORY APPLICATIONS
- Patent Title (中): 用于磁记忆应用的应力辅助电流驱动开关
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Application No.: PCT/US2004037633Application Date: 2004-11-12
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Publication No.: WO2005050653A3Publication Date: 2005-10-27
- Inventor: PAKALA MAHENDRA , HUAI YIMING
- Applicant: GRANDIS INC , PAKALA MAHENDRA , HUAI YIMING
- Assignee: GRANDIS INC,PAKALA MAHENDRA,HUAI YIMING
- Current Assignee: GRANDIS INC,PAKALA MAHENDRA,HUAI YIMING
- Priority: US71435703 2003-11-14
- Main IPC: G11C
- IPC: G11C20060101 ; G11C11/16 ; G11C17/02 ; H01L21/336 ; H01L21/8246 ; H01L27/22 ; H01L43/08
Abstract:
A method and system for providing a magnetic memory is disclosed. The method and system include providing a plurality of magnetic elements and providing at least one stress-assist layer. Each of the plurality of magnetic elements is configured to be written using spin transfer. The at least one stress-assist layer is configured to exert at least one stress on at least one magnetic element of the plurality of magnetic elements during writing. The reduction of spin-transfer switching current is due to stress exerted by the stress-assist layer on the magnetic elements during writing. Stability of the magnetic memory with respect to thermal fluctuations is not compromised because the energy barrier between the two magnetization states is unchanged once the switching current is turned off.
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