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    • 1. 发明申请
    • SEMICONDUCTOR MEMORY DEVICE
    • 半导体存储器件
    • US20140126270A1
    • 2014-05-08
    • US14152530
    • 2014-01-10
    • Kabushiki Kaisha Toshiba
    • Yoichi MINEMURATakayuki TSUKAMOTOHiroshi KANNOTakamasa OKAWA
    • G11C13/00
    • G11C13/0002G11C11/1673G11C11/419G11C13/0004G11C13/0007G11C13/0009G11C13/0011G11C13/0069G11C13/0097G11C2213/71G11C2213/72
    • A memory cell array includes memory cells disposed at intersections of first lines and second lines, and each having a rectifying element and a variable resistance element connected in series. A control circuit, when performing an operation to change retained data, applies a first voltage to a selected first line and applies a second voltage to a selected second line; furthermore, applies a third voltage to a non-selected first line; and, moreover, applies a fourth voltage larger than the third voltage to a non-selected second line. An absolute value of a difference between the third voltage and the fourth voltage is set smaller than an absolute value of a difference between the first voltage and the second voltage by an amount of an offset voltage. A value of the offset voltage increases as the absolute value of the difference between the first and second voltages increases.
    • 存储单元阵列包括设置在第一线和第二线的交点处的存储单元,并且每个具有串联连接的整流元件和可变电阻元件。 控制电路在执行改变保留数据的操作时,将第一电压施加到所选择的第一行,并将第二电压施加到所选择的第二行; 此外,将第三电压施加到未选择的第一线; 此外,将大于第三电压的第四电压施加到未选择的第二线。 将第三电压和第四电压之间的差的绝对值设定为小于第一电压和第二电压之间的差的绝对值除以偏移电压的量。 随着第一和第二电压之间的差的绝对值增加,偏移电压的值增加。
    • 2. 发明申请
    • NONVOLATILE SEMICONDUCTOR MEMORY DEVICE
    • 非易失性半导体存储器件
    • US20140063889A1
    • 2014-03-06
    • US13778840
    • 2013-02-27
    • KABUSHIKI KAISHA TOSHIBA
    • Yoichi MINEMURATakayuki TSUKAMOTOHiroshi KANNOTakamasa OKAWA
    • G11C13/00G11C5/06
    • G11C13/0002G11C5/06G11C8/08G11C13/00G11C13/0023G11C13/0028G11C13/003G11C2213/72
    • A nonvolatile semiconductor memory device according to an embodiment comprises: a memory cell array including first lines, second lines, and memory cells provided at each of intersections of the first lines and the second lines; and a control unit including a row control circuit, a first column control circuit provided on a side of one ends of the second lines, and a second column control circuit provided on a side of the other ends of the second lines, the control unit, during an access operation, controlling a potential of the first lines and the second lines such that a bias, which is lower than that applied to a certain unselected memory cell, is applied to those of unselected memory cells that are located more toward a center of the memory cell array in the column direction than the certain unselected memory cell.
    • 根据实施例的非易失性半导体存储器件包括:包括设置在第一线和第二线的每个交点处的第一线,第二线和存储单元的存储单元阵列; 以及控制单元,包括行控制电路,设置在所述第二线的一端的一侧的第一列控制电路和设置在所述第二线的另一端的一侧的第二列控制电路,所述控制单元, 在访问操作期间,控制第一行和第二行的电位,使得低于施加到某个未选择的存储单元的偏移被施加到未选择的存储单元的偏置 存储单元阵列在列方向上比某些未选择的存储单元。
    • 3. 发明申请
    • NONVOLATILE SEMICONDUCTOR MEMORY DEVICE
    • 非易失性半导体存储器件
    • US20160276353A1
    • 2016-09-22
    • US14816431
    • 2015-08-03
    • Kabushiki Kaisha Toshiba
    • Shigeki KOBAYASHIKei SAKAMOTOTakamasa OKAWARyosuke SAWABE
    • H01L27/115
    • H01L27/11582H01L27/11556H01L27/11565
    • A stacked body is disposed so as cover a periphery of a semiconductor columnar portion and includes a conductive layer and an inter-layer insulating layer stacked alternately in a stacking direction on a semiconductor substrate. An epitaxial layer is disposed on a surface of the semiconductor substrate and is electrically connected to a lower end of the semiconductor columnar portion. The semiconductor columnar portion comprises: an insulating film core; and a semiconductor portion disposed so as to cover a periphery of the insulating film core and electrically connected to the epitaxial layer at a lower end portion. The epitaxial layer includes a concave portion in a surface thereof, and the insulating film core has a lower end thereof positioned inside the concave portion.
    • 叠层体设置为覆盖半导体柱状部分的周围,并且包括在半导体衬底上沿堆叠方向交替堆叠的导电层和层间绝缘层。 外延层设置在半导体衬底的表面上并与半导体柱状部分的下端电连接。 半导体柱状部分包括:绝缘膜芯; 以及半导体部,其设置成覆盖绝缘膜芯的周边,并且在下端部与外延层电连接。 外延层在其表面包括凹部,绝缘膜芯的下端位于凹部内部。
    • 5. 发明申请
    • SEMICONDUCTOR MEMORY DEVICE AND CONTROL METHOD THEREOF
    • 半导体存储器件及其控制方法
    • US20150228337A1
    • 2015-08-13
    • US14306843
    • 2014-06-17
    • KABUSHIKI KAISHA TOSHIBA
    • Takamasa OKAWATakayuki TsukamotoYoichi MinemuraHiroshi KannoAtsushi YoshidaHideyuki Tabata
    • G11C13/00G11C5/02
    • G11C13/0035G11C5/02G11C7/18G11C13/0002G11C13/0026G11C29/024G11C2029/5006G11C2213/71H01L27/101
    • A semiconductor memory device comprises: first lines disposed in a first direction perpendicular to a substrate and extending in a second direction parallel to the substrate; second lines disposed in the second direction and configured to extend in the first direction, the second lines intersecting the first lines; and memory cells disposed at intersections of the first lines and the second lines and each including a variable resistance element. Furthermore, a third line extends in a third direction orthogonal to the first and second directions. A select transistor is connected between the second and third lines. A control circuit controls a voltage applied to the first and third lines, and the select transistor. The control circuit renders conductive at least one of the select transistors and thereby detect a current flowing in the third line, and determines a deterioration state of the select transistor according to a detection result.
    • 一种半导体存储器件,包括:沿垂直于衬底的第一方向设置的第一线,并沿与衬底平行的第二方向延伸; 第二线沿第二方向设置并且被配置为在第一方向上延伸,第二线与第一线相交; 以及设置在第一线和第二线的交叉点处并且每个包括可变电阻元件的存储单元。 此外,第三线在与第一和第二方向正交的第三方向上延伸。 选择晶体管连接在第二和第三线之间。 控制电路控制施加到第一和第三线和选择晶体管的电压。 控制电路使至少一个选择晶体管导通,从而检测在第三线中流动的电流,并根据检测结果确定选择晶体管的劣化状态。
    • 10. 发明申请
    • NON-VOLATILE MEMORY DEVICE
    • 非易失性存储器件
    • US20140355326A1
    • 2014-12-04
    • US14022485
    • 2013-09-10
    • Kabushiki Kaisha Toshiba
    • Takamasa OKAWATakayuki TSUKAMOTOYoichi MINEMURAHiroshi KANNOAtsushi YOSHIDA
    • G11C13/00G11C5/06
    • G11C13/0002G11C5/063G11C29/025G11C29/808
    • According to one embodiment, a non-volatile memory device includes: a plurality of first interconnects, and each of the first interconnects extending in a first direction; a plurality of second interconnects, and each of the second interconnects extending in a second direction intersecting with the first direction; a memory cell connected between each of the plurality of first interconnects and each of the plurality of second interconnects, the memory cell including a memory layer and a diode connected to the memory layer; and a control circuit capable of selecting a selection first interconnect among the first interconnects, selecting a selection second interconnect among the second interconnects, and selecting a selection memory cell connected to both the selection first interconnect and the selection second interconnect.
    • 根据一个实施例,非易失性存储器件包括:多个第一互连件,并且每个第一互连件沿第一方向延伸; 多个第二互连,并且所述第二互连中的每一个在与所述第一方向相交的第二方向上延伸; 连接在所述多个第一互连中的每一个与所述多个第二互连中的每一个之间的存储单元,所述存储单元包括连接到所述存储层的存储层和二极管; 以及控制电路,其能够选择所述第一互连中的选择第一互连,选择所述第二互连中的选择第二互连,以及选择连接到所述选择第一互连和所述选择第二互连的选择存储单元。