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    • 2. 发明申请
    • MAGNETIC MEMORY ELEMENT UTILIZING SPIN TRANSFER SWITCHING AND STORING MULTIPLE BITS
    • 磁记录元件利用旋转切换和存储多个位
    • WO2005020242A2
    • 2005-03-03
    • PCT/US2004/027708
    • 2004-08-24
    • GRANDIS, INC.NGUYEN, Paul, P.HUAI, Yiming
    • NGUYEN, Paul, P.HUAI, Yiming
    • G11C
    • G11C11/16B82Y25/00G11C11/5607H01F10/3263H01L43/08
    • A method and system for providing a magnetic element capable of storing multiple bits is disclosed. The method and system include providing first pinned layer, a first nonmagnetic layer, a first free layer, a connecting layer, a second pinned layer, a second nonmagetic layer and a second free layer. The first pinned layer is ferromagnetic and has a first pinned layer magnetization pinned in a first direction. The first nonmagnetic layer resides between the first pinned layer and the first free layer. The first free layer being ferromagnetic and has a first free layer magnetization. The second pinned layer is ferromagnetic and has a second pinned layer magnetization pinned in a second direction. The connecting layer resides between the second pinned layer and the first free layer. The second nonmagnetic layer resides between the second pinned layer and the second free layer. The second free layer being ferromagnetic and having a second free layer magnetization. The magnetic element is configured to allow the first free layer magnetization and the second free layer magnetization to change direction due to spin transfer when a write current is passed through the magnetic element.
    • 公开了一种用于提供能够存储多个位的磁性元件的方法和系统。 该方法和系统包括提供第一被钉扎层,第一非磁性层,第一自由层,连接层,第二钉扎层,第二非弹性层和第二自由层。 第一被钉扎层是铁磁性的并且具有沿第一方向固定的第一钉扎层磁化。 第一非磁性层位于第一被钉扎层和第一自由层之间。 第一自由层是铁磁性的并且具有第一自由层磁化。 第二被钉扎层是铁磁性的并且具有沿第二方向固定的第二钉扎层磁化。 连接层位于第二被钉扎层和第一自由层之间。 第二非磁性层位于第二被钉扎层和第二自由层之间。 第二自由层是铁磁性的并且具有第二自由层磁化。 磁性元件构造成当写入电流通过磁性元件时,由于自旋转移使第一自由层磁化和第二自由层磁化改变方向。
    • 3. 发明申请
    • CURRENT CONFINED PASS LAYER FOR MAGNETIC ELEMENTS UTILIZING SPIN-TRANSFER AND AN MRAM DEVICE USING SUCH MAGNETIC ELEMENTS
    • 使用旋转元件的磁性元件的当前配置通道层和使用这种磁性元件的MRAM器件
    • WO2005029497A2
    • 2005-03-31
    • PCT/US2004/030677
    • 2004-09-17
    • GRANDIS, INC.HUAI, YimingNGUYEN, Paul, P.ALBERT, Frank
    • HUAI, YimingNGUYEN, Paul, P.ALBERT, Frank
    • G11C
    • G11C11/16
    • A method and system for providing and magnetic element is disclosed. In one aspect, the magnetic element includes at least a pinned layer, a free layer, and a current confined layer residing between the pinned layer and the free layer. The pinned layer is ferromagnetic and has a first magnetization. The current confined layer has at least one channel in an insulating matrix. The channel(s) are conductive and extend through the current confined layer. The free layer is ferromagnetic and has a second magnetization. The pinned layer, the free layer, and the current confined layer are configured to allow the magnetization of the free layer to be switched using spin transfer. The magnetic element may also include other layers, including layers for spin valve(s), spin tunneling junction(s), dual spin valve(s), dual spin tunneling junction(s), and dual spin valve/tunnel structure(s).
    • 公开了一种用于提供和磁性元件的方法和系统。 在一个方面,磁性元件至少包括钉扎层,自由层和驻留在被钉扎层和自由层之间的电流限制层。 被钉扎层是铁磁性的并且具有第一磁化强度。 电流限制层在绝缘矩阵中具有至少一个通道。 通道是导电的并延伸通过电流限制层。 自由层是铁磁性的并且具有第二磁化强度。 被钉扎层,自由层和电流限制层被配置为允许使用自旋转移来切换自由层的磁化。 磁性元件还可以包括其它层,包括用于自旋阀的层,自旋隧道结,双自旋阀,双自旋隧道结,以及双自旋阀/隧道结构, 。