发明授权
US07599215B2 Magnetoresistive random access memory device with small-angle toggle write lines
有权
具有小角度切换写入线的磁阻随机存取存储器件
- 专利标题: Magnetoresistive random access memory device with small-angle toggle write lines
- 专利标题(中): 具有小角度切换写入线的磁阻随机存取存储器件
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申请号: US11840051申请日: 2007-08-16
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公开(公告)号: US07599215B2公开(公告)日: 2009-10-06
- 发明人: Wen-Chin Lin , Denny Tang , Hsu Chen Cheng
- 申请人: Wen-Chin Lin , Denny Tang , Hsu Chen Cheng
- 申请人地址: TW Hsinchu
- 专利权人: Taiwan Semiconductor Manufacturing Company, Ltd.
- 当前专利权人: Taiwan Semiconductor Manufacturing Company, Ltd.
- 当前专利权人地址: TW Hsinchu
- 代理机构: Baker & McKenzie LLP
- 主分类号: G11C11/15
- IPC分类号: G11C11/15
摘要:
Disclosed herein are toggle-mode magnetoresistive random access memory (MRAM) devices having small-angle toggle write lines, and related methods of toggle-mode switching MRAM devices. Also disclosed are layouts for MRAM devices constructed according to the disclosed principles. Generally speaking, the disclosed principles provide for non-orthogonally aligned toggle-mode write lines used to switch toggle-mode MRAM devices that employ a bias field to decrease the threshold needed to switch the magnetic state of each device. While the conventional toggle-mode write lines provide for the desired orthogonal orientation of the applied magnetic fields to optimize device switching, the use of a bias field affects this orthogonal orientation. By non-orthogonally aligning the two write lines as disclosed herein, the detrimental affect of the bias field may be compensated for such that the net fields applied to the device for both lines are again substantially orthogonal, as is desired.
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