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    • 13. 发明专利
    • Non-volatile random access memory device
    • 非易失性随机访问存储器件
    • JPS5955059A
    • 1984-03-29
    • JP16486482
    • 1982-09-24
    • Fujitsu Ltd
    • SASAKI NOBUOINABA TOORU
    • H01L27/112G11C11/02H01L21/8246H01L21/8247H01L27/105H01L29/788H01L29/792
    • G11C11/02
    • PURPOSE:To obtain a non-volatile random access memory device which can hold stored contents even if a power source voltage is failed while maintaining high integration, high speed operation and inexpensive cost by forming a magnetic unit which has a switching element and an enclosed section in a semiconductor substrate. CONSTITUTION:In a peripheral circuit, a word line W1 and a digit line D1 are selected, the first current source is operated to magnetize a memory cell 11 to logic ''1'', the second current source is operated to generate a reverse current having equal absolute value to the first current source to magnetize the memory cell 11 to logic ''0''. The memory cell 11 is held in this state irrespective of the presence or absence of a power source failure. Then, the third current source which has a current value smaller than the first or second current source but sufficient to detect the magnetized state without varying the magnetized state of the magnetic unit 7 is operated. Writing or reading out can be performed by the current which flows through the hollow part of the unit 7.
    • 目的:通过形成具有开关元件和封闭部分的磁性单元,获得能够保持存储内容的非易失性随机存取存储器件,即使在电源电压失效的同时保持高集成度,高速操作和廉价的成本 在半导体衬底中。 构成:在外围电路中,选择字线W1和数字线D1,操作第一电流源以将存储器单元11磁化为逻辑“1”,第二电流源被操作以产生反向电流 对第一电流源具有相等的绝对值,以将存储器单元11磁化成逻辑“0”。 无论存在或不存在电源故障,存储单元11都保持在该状态。 然后,操作具有小于第一或第二电流源但足以检测磁化状态而不改变磁性单元7的磁化状态的电流值的第三电流源。 写入或读出可以通过流过单元7的中空部分的电流进行。
    • 19. 发明专利
    • Magnetic memory
    • 磁记忆
    • JP2014078617A
    • 2014-05-01
    • JP2012225910
    • 2012-10-11
    • Toshiba Corp株式会社東芝
    • KONDO TAKESHIMORISE HIROSHINAKAMURA SHIHOSHIMADA TAKUYAFUKUZUMI YOSHIAKIAOCHI HIDEAKI
    • H01L27/105G11C11/15H01L21/8246H01L29/82H01L43/08
    • G11C11/02B82Y10/00G11C11/161G11C11/1675G11C19/0808G11C19/0841G11C21/00G11C2213/52Y10S977/762Y10S977/838Y10S977/943
    • PROBLEM TO BE SOLVED: To provide a magnetic memory for reducing power consumption.SOLUTION: The magnetic memory has a magnetic fine wire having a first face and a second face opposite from the first face, a first end face on which a plurality of first insulation layers provided on the first face of the magnetic fine wire in a first direction in which the magnetic fine wire extends intersect the first direction, and a second end face arranged oppositely from the first end face and separately from the first end face in the first direction, has a plurality of first insulation layers in which the thickness of the first insulation layer in the first end face is thicker than that of the first insulation layer in the second end face, a plurality of first electrodes provided on a surface of the first insulation layer, a third end face in which a plurality of second insulation layers provided on the second face of the magnetic fine wire in the first direction intersects the first direction, and a fourth end face arranged oppositely from the third end face and separately from the third end face in the first direction, and includes a plurality of second insulation layers in which the thickness of the second insulation layer in the third end face is thicker than that of the second insulation layer in the fourth end face, and a plurality of second electrodes provided on the surface of the second insulation layers.
    • 要解决的问题:提供一种用于降低功耗的磁存储器。解决方案:磁存储器具有磁性细线,其具有第一面和与第一面相对的第二面,第一端面上多个第一绝缘层 在磁性细线的第一方向上设置有磁性细线延伸的第一方向与第一方向相交的第二端面和与第一端面相反地分开设置的第一端面, 具有多个第一绝缘层,其中第一端面中的第一绝缘层的厚度比第二端面中的第一绝缘层的厚度厚,设置在第一绝缘层的表面上的多个第一电极 第三端面,其中设置在第一方向上的磁性细线的第二面上的多个第二绝缘层与第一方向相交,第 所述第四端面与所述第三端面相反地设置,并且在所述第一方向上与所述第三端面分开,并且包括多个第二绝缘层,所述第三绝缘层的第三端面中的厚度比 第四端面中的第二绝缘层,以及设置在第二绝缘层的表面上的多个第二电极。