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    • 1. 发明公开
    • 수직 자화 터널 접합을 이용한 고용량 엠램
    • 高性能MRAM使用PERPENDICULAR MAGNETIC TUNNEL JUNCTION
    • KR1020090122544A
    • 2009-12-01
    • KR1020080048417
    • 2008-05-26
    • 부산대학교 산학협력단
    • 원혁한재만박관수
    • G11C11/15
    • G11C11/161G11C11/1659G11C11/1673G11C11/1675G11C5/02G11C7/18G11C8/14G11C11/15H01L43/08
    • PURPOSE: A high-capacity MRAM using perpendicular magnetization tunnel junction is provided to generate a strong recording field by applying a first pole and a second pole of high magnetic permeability. CONSTITUTION: Currents for recording and reading of data are applied to a current line(20). A free magnetic layer(30) is used to keep a magnetization state. A fixed magnetic layer(40) maintains magnetization without the influence of a magnetic field in a fixed direction. A perpendicular magnetic tunnel junction part(50) determines conduction of predetermined currents according to a direction of a mutual magnetic field between the free magnetic layer and the fixed magnetic layer. A memory cell is arranged in the same central axis on both sides of the free magnetic layer. The memory cell is made of magnetic material. A first pole(60) and a second pole concentrate a magnetic field generated by the currents applied to the current line. The free magnetic layer is magnetized in a first or second pole direction by the magnetic field.
    • 目的:提供使用垂直磁化隧道结的高容量MRAM,以通过施加高磁导率的第一极和第二极来产生强的记录场。 规定:用于记录和读取数据的电流应用于当前行(20)。 使用自由磁性层(30)来保持磁化状态。 固定磁性层(40)在不受固定方向的磁场影响的情况下保持磁化。 垂直磁性隧道结部分(50)根据自由磁性层和固定磁性层之间的相互磁场的方向确定预定电流的导通。 存储单元布置在自由磁性层的两侧上的相同的中心轴上。 存储单元由磁性材料制成。 第一极(60)和第二极集中了由施加到电流线的电流产生的磁场。 自由磁性层通过磁场在第一或第二极方向上被磁化。