Invention Grant
- Patent Title: Magnetic memory cells with low switching current density
- Patent Title (中): 具有低开关电流密度的磁存储单元
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Application No.: US15012798Application Date: 2016-02-01
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Publication No.: US09542987B2Publication Date: 2017-01-10
- Inventor: Vinayak Bharat Naik , Eng Huat Toh , Kiok Boone Elgin Quek
- Applicant: GLOBALFOUNDRIES Singapore Pte. Ltd.
- Applicant Address: SG Sinagpore
- Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.
- Current Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.
- Current Assignee Address: SG Sinagpore
- Agency: Horizon IP Pte. Ltd.
- Main IPC: G11C11/15
- IPC: G11C11/15 ; G11C11/16 ; H01L43/02 ; H01L43/12 ; H01L27/22

Abstract:
Memory cells and methods for forming a memory cell are disclosed. The memory cell includes a substrate defined with a memory cell region. A cell selector unit is defined on the substrate. The cell selector unit includes at least one select transistor. A storage element which includes a magnetic tunnel junction (MTJ) element is coupled to the selector unit. The MTJ element includes a free layer, a fixed layer and a tunnel barrier sandwiched between the fixed and free layers. A spin-orbit-torque (SOT) layer is coupled to the selector unit and is in direct contact with the free layer. A strain induced layer is coupled to a digital line (DL) and is in direct contact with the SOT layer. When the DL is activated, an electric field applied to the strain induced layer induces a strain on the SOT layer.
Public/Granted literature
- US20160225423A1 MAGNETIC MEMORY CELLS WITH LOW SWITCHING CURRENT DENSITY Public/Granted day:2016-08-04
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