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    • 1. 发明授权
    • Semiconductor memory device using ferroelectric capacitor and having
only one sense amplifier selected
    • 使用铁电电容器并且仅选择一个读出放大器的半导体存储器件
    • US5400275A
    • 1995-03-21
    • US712092
    • 1991-06-07
    • Kazuhide AbeHiroshi ToyodaKoji YamakawaMotomasa ImaiKoji Sakui
    • Kazuhide AbeHiroshi ToyodaKoji YamakawaMotomasa ImaiKoji Sakui
    • G11C11/22H01L27/115G11C7/00
    • H01L27/11502G11C11/22
    • A semiconductor memory device comprises a plurality of memory cells arranged in the form of a matrix to constitute rows-and columns, a plurality of first driving lines, connected to the memory cells, for transmitting a first driving signal to the memory cells, one of the plurality of first driving lines being selected by a row address, a plurality of second driving lines, connected to the memory cells, for transmitting a second driving signal to the memory cells, one of the plurality of second driving lines being selected by a column address, a plurality of read/write lines, connected to the memory cells, for performing read/write operations with respect to the memory cells, and a plurality of sense amplifiers connected to the read/ write lines, wherein one of the plurality of sense amplifiers is selected by the column address, and the memory cells in the same column are connected to the same sense amplifier through the read/write lines.
    • 一种半导体存储器件包括以矩阵形式布置以构成行和列的多个存储器单元,连接到存储器单元的多条第一驱动线,用于将第一驱动信号发送到存储器单元,其中之一 所述多个第一驱动线由行地址选择,多个第二驱动线连接到所述存储单元,用于将第二驱动信号发送到所述存储单元,所述多个第二驱动线中的一个由列选择 连接到存储器单元的多个读/写线,用于对存储单元执行读/写操作,以及连接到读/写线的多个读出放大器,其中多个感测中的一个 放大器由列地址选择,同一列中的存储单元通过读/写线连接到相同的读出放大器。
    • 3. 发明授权
    • Memory having ferroelectric capacitors polarized in nonvolatile mode
    • 具有以非易失性模式极化的铁电电容器的存储器
    • US5297077A
    • 1994-03-22
    • US676546
    • 1991-03-28
    • Motomasa ImaiHiroshi ToyodaKazuhide AbeKoji YamakawaHisakazu IizukaMitsuo HarataKoji Sakui
    • Motomasa ImaiHiroshi ToyodaKazuhide AbeKoji YamakawaHisakazu IizukaMitsuo HarataKoji Sakui
    • G11C11/22G11C14/00
    • G11C14/00G11C11/22
    • A semiconductor memory device comprises a ferroelectric capacitor, a voltage output circuit for outputting a first voltage for reversely polarizing the ferroelectric capacitor and a second voltage by which the polarization of the ferroelectric capacitor is not reversed, regardless of data stored in the ferroelectric capacitor, a first reference capacitor having a such a capacitance as to accumulate less charge than charge which the ferroelectric capacitor accumulates, when the second voltage is applied to the ferroelectric capacitor, a second reference capacitor having such a capacitance that as to accumulate greater charge than the charge which the ferroelectric capacitor accumulates while the ferroelectric capacitor is forwardly polarized, when the first voltage is applied to the ferroelectric capacitor, thus reversely polarizing the ferroelectric capacitor, a sense amplifier connected to the ferroelectric capacitor and the first or second reference capacitor, a reference-capacitor selecting circuit for connecting the first reference capacitor to the sense amplifier when the voltage output circuit outputs the second voltage, and connecting the second reference capacitor to the sense amplifier while the voltage output circuit outputs the first voltage, and a circuit for determining data from the presence or absence of an electric charge in the ferroelectric capacitors while the memory is set in volatile mode, and for determining data from the direction in which the ferroelectric capacitor is polarized, while the memory is set in nonvolatile mode.
    • 半导体存储器件包括铁电电容器,用于输出用于使强电介质电容器反向极化的第一电压的电压输出电路和强电介质电容器的极化不反转的第二电压,而与铁电电容器中存储的数据无关 第一参考电容器具有这样的电容,即当第二电压被施加到铁电电容器时,积累比铁电电容器累积的电荷少的电荷,第二参考电容器具有这样的电容,以便积累比电荷更大的电荷 当铁电电容器向前偏振时,铁电电容器累积,当第一电压施加到铁电电容器时,从而使铁电电容器反向极化,连接到铁电电容器和第一或第二参考电容器的读出放大器,参考电容器 s 选择电路,用于当电压输出电路输出第二电压时将第一参考电容器连接到读出放大器,并且在电压输出电路输出第一电压时将第二参考电容器连接到读出放大器;以及电路,用于从 当存储器被设置为易失性模式时,铁电电容器中存在或不存在电荷,并且用于从存储器设置为非易失性模式时从铁电电容器被极化的方向确定数据。
    • 4. 发明授权
    • Programming memory cells using smaller step voltages for higher program levels
    • 使用更小的步进电压编程存储器单元以实现更高的程序级
    • US08737131B2
    • 2014-05-27
    • US13305795
    • 2011-11-29
    • Koji Sakui
    • Koji Sakui
    • G11C11/34
    • G11C16/10G11C11/5628G11C16/0483G11C16/3427
    • Memory devices and methods are disclosed. An embodiment of one such method includes programming a first memory cell to a first program level by applying a first series of programming pulses to a control gate of the first memory cell, where the programming pulses of the first series have voltages that sequentially increase by a certain first voltage; and programming a second memory cell to a second program level that is higher than the first program level by applying a second series of programming pulses to a control gate of the second memory cell, where the programming pulses of the second series have voltages that sequentially increase by a certain second voltage less than the certain first voltage.
    • 公开了存储器件和方法。 一种这样的方法的实施例包括通过将第一系列编程脉冲施加到第一存储器单元的控制栅极来将第一存储器单元编程为第一程序级,其中第一系列的编程脉冲具有依次增加的电压 一定的第一电压; 以及通过将第二系列编程脉冲施加到所述第二存储器单元的控制栅极来将第二存储器单元编程为高于所述第一编程电平的第二编程电平,其中所述第二系列的编程脉冲具有顺序增加的电压 通过一定的第二电压小于一定的第一电压。
    • 5. 发明申请
    • PARTIAL BLOCK MEMORY OPERATIONS
    • 部分块存储器操作
    • US20140036590A1
    • 2014-02-06
    • US13564458
    • 2012-08-01
    • Peter Sean FeeleyKoji SakuiAkira Goda
    • Peter Sean FeeleyKoji SakuiAkira Goda
    • G11C16/04
    • Methods and apparatuses are disclosed, such as those including a block of memory cells that includes strings of charge storage devices. Each of the strings may comprise a plurality of charge storage devices formed in a plurality of tiers. The apparatus may comprise a plurality of access lines shared by the strings. Each of the plurality of access lines may be coupled to the charge storage devices corresponding to a respective tier of the plurality of tiers. The apparatus may comprise a plurality of sub-sources associated with the strings. Each of the plurality of sub-sources may be coupled to a source select gate of each string of a respective subset of a plurality of subsets of the strings, and each sub-source may be independently selectable from other sub-sources to select the strings of its respective subset independently of other strings corresponding to other subsets.
    • 公开了诸如包括包含电荷存储装置串的存储器单元块的方法和装置。 每个串可以包括以多层形成的多个电荷存储装置。 该装置可以包括由串共享的多个接入线。 多个接入线路中的每一个可以耦合到与多个层级的相应层对应的电荷存储装置。 该装置可以包括与弦相关联的多个子源。 多个子源中的每一个可以耦合到字符串的多个子集的相应子集的每个串的源选择门,并且每个子源可以独立地从其他子源中选择以选择字符串 独立于对应于其他子集的其他字符串。
    • 8. 发明申请
    • PROGRAMMING MEMORY CELLS USING SMALLER STEP VOLTAGES FOR HIGHER PROGRAM LEVELS
    • 使用较小程序级电压编程存储器电池
    • US20130135937A1
    • 2013-05-30
    • US13305795
    • 2011-11-29
    • Koji Sakui
    • Koji Sakui
    • G11C16/10
    • G11C16/10G11C11/5628G11C16/0483G11C16/3427
    • Memory devices and methods are disclosed. An embodiment of one such method includes programming a first memory cell to a first program level by applying a first series of programming pulses to a control gate of the first memory cell, where the programming pulses of the first series have voltages that sequentially increase by a certain first voltage; and programming a second memory cell to a second program level that is higher than the first program level by applying a second series of programming pulses to a control gate of the second memory cell, where the programming pulses of the second series have voltages that sequentially increase by a certain second voltage less than the certain first voltage.
    • 公开了存储装置和方法。 一种这样的方法的实施例包括通过将第一系列编程脉冲施加到第一存储器单元的控制栅极来将第一存储器单元编程为第一程序级,其中第一系列的编程脉冲具有依次增加的电压 一定的第一电压; 以及通过将第二系列编程脉冲施加到所述第二存储器单元的控制栅极来将第二存储器单元编程为高于所述第一编程电平的第二编程电平,其中所述第二系列的编程脉冲具有顺序增加的电压 通过一定的第二电压小于一定的第一电压。
    • 10. 发明申请
    • Nonvolatile Semiconductor Storage Device and Operation Method Thereof
    • 非易失性半导体存储器件及其操作方法
    • US20080192549A1
    • 2008-08-14
    • US11815387
    • 2006-02-03
    • Michio NakagawaKoji Sakui
    • Michio NakagawaKoji Sakui
    • G11C16/12
    • G11C16/12G11C16/3468
    • To provide a nonvolatile semiconductor storage device and a drive method thereof capable of preventing lowering efficiency of write or erase operation and reducing the write time and the erase time. [MEANS FOR SOLVING PROBLEMS] A nonvolatile semiconductor storage device includes an electrically rewritable memory cell formed by a floating gate and a control gate layered on a semiconductor layer. The nonvolatile semiconductor storage device applies a plurality of threshold value fluctuation pulses having a stepwise high potential to the memory cell and then detects a threshold value of the memory cell. When the threshold value of the memory cell is not a predetermined value, a plurality of threshold value fluctuation pulses having stepwise high potential are applied to the memory cell from a potential of the lastly applied threshold value fluctuation pulse, among the plurality of threshold value fluctuation pulses, to which a certain potential is added.
    • 提供一种能够防止写入或擦除操作的降低效率并减少写入时间和擦除时间的非易失性半导体存储器件及其驱动方法。 解决问题的手段非易失性半导体存储装置包括由浮置栅极和层叠在半导体层上的控制栅极形成的电可重写存储单元。 非易失性半导体存储装置向存储单元施加具有逐级高电位的多个阈值波动脉冲,然后检测存储单元的阈值。 当存储单元的阈值不是预定值时,具有逐步高电位的多个阈值波动脉冲从最近施加的阈值波动脉冲的电位在多个阈值波动之中被施加到存储单元 脉冲,添加一定的电位。