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    • 81. 发明授权
    • Semiconductor memory device with program/erase verification
    • 具有编程/擦除验证的半导体存储器件
    • US5761122A
    • 1998-06-02
    • US749673
    • 1996-11-15
    • Hiroshi NakamuraJunichi MiyamotoYoshihisa IwataKeniti Imamiya
    • Hiroshi NakamuraJunichi MiyamotoYoshihisa IwataKeniti Imamiya
    • G11C16/06G11C7/00G11C16/02G11C16/04G11C16/10G11C16/34H01L21/8247H01L27/115
    • G11C16/3477G11C16/10G11C16/3445G11C16/3459G11C16/3468G11C16/3486G11C7/00
    • A semiconductor memory device includes a semiconductor substrate, a memory cell array having memory cells, each of which stores data, formed in matrix on the semiconductor substrate, a plurality of data latch circuits, each, of which is arranged at one end of at least one bit line connected to the memory cell array and for latching programming data, a control section for judging whether all of a plurality of latched data included in date latch groups constituted by the plurality of data latch circuits are the same as a first data or not and for controlling to change a potential of a plurality of first nodes according to the judging result, a section for detecting potentials of the plurality of the first nodes and for judging whether all data latched by the latch circuits are the same as the first data and for controlling to change a potential of a plurality of second nodes according to the judging result, and a section for detecting the potential of the plurality of second nodes and for outputting a judging result whether all of data latched by data latch circuits, are the same as the first data or not.
    • 半导体存储器件包括半导体衬底,具有存储单元的存储单元阵列,每个存储单元存储矩阵形成在半导体衬底上的数据,多个数据锁存电路,每个数据锁存电路至少布置在一端 连接到存储单元阵列的一位线和用于锁存编程数据的控制部分,用于判断包括在由多个数据锁存电路构成的日期锁存组中的多个锁存数据是否与第一数据相同的控制部分 并且用于根据判断结果控制多个第一节点的电位变化,用于检测多个第一节点的电位的部分和用于判断由锁存电路锁存的所有数据是否与第一数据相同, 用于根据判断结果控制多个第二节点的电位,以及用于检测多个第二节点和fo的电位的部分 r输出由数据锁存电路锁存的所有数据是否与第一数据相同的判断结果。
    • 83. 发明授权
    • Non-volatile semiconductor memory device
    • 非易失性半导体存储器件
    • US5637895A
    • 1997-06-10
    • US523315
    • 1995-09-05
    • Yoshihisa IwataHiroshi Nakamura
    • Yoshihisa IwataHiroshi Nakamura
    • H01L21/8247G11C16/04H01L27/115H01L29/788H01L29/792
    • H01L27/115G11C16/0416G11C16/0483
    • In a non-volatile semiconductor memory device having a memory cell array formed by arranging a plurality of non-volatile reloadable semiconductor memory cells (Mi) and select gate elements on a semiconductor substrate (11) via a gate insulating film (13), each memory cell being formed by interposing an interlayer insulating film (15) between a charge storage layer and a control gate line (16.sub.i), the memory device comprises a plurality of select gate lines (14.sub.i) formed by a wiring layer the same as the charge storage layer of the memory cells, as gate electrodes of the select gate elements; and select gate over-adjacent connect lines (16.sub.9, 16.sub.10) formed by a wiring layer the same as the control gate lines (16.sub.i) of the memory cells and located over the select gate lines (14.sub.9, 14.sub.10) via an insulating film in such a way as to be kept floated without contacting with any other wires and potential nodes.
    • 在通过经由栅极绝缘膜(13)在半导体衬底(11)上布置多个非易失性可重载半导体存储单元(Mi)和选择栅极元件而形成的存储单元阵列的非易失性半导体存储器件中, 存储单元通过在电荷存储层和控制栅极线(16i)之间插入层间绝缘膜(15)形成,所述存储器件包括由与所述电荷相同的布线层形成的多个选择栅极线(14i) 存储单元的存储层,作为选择栅极元件的栅电极; 并且选择由与存储单元的控制栅极线(16i)相同的布线层形成的并且位于选择栅极线(149,1410)上方的栅极相邻连接线(169,1610),该绝缘膜经由绝缘膜 一种在不与任何其他电线和潜在节点接触的情况下保持浮动的方式。
    • 86. 发明授权
    • Semiconductor memory device
    • 半导体存储器件
    • US5268867A
    • 1993-12-07
    • US957001
    • 1992-10-06
    • Masaki MomodomiYasuo ItohYoshihisa IwataTomoharu TanakaYoshiyuki Tanaka
    • Masaki MomodomiYasuo ItohYoshihisa IwataTomoharu TanakaYoshiyuki Tanaka
    • G11C11/409G11C5/14G11C7/10G11C16/06G11C16/20G11C16/26G11C7/00
    • G11C7/1048G11C16/20G11C16/26G11C5/147
    • The present invention provides a semiconductor memory device capable of reducing its current consumption, controlling the generation of noise, and increasing in access using a precharge voltage applied to a precharge circuit. In the semiconductor memory device, a precharge circuit is connected to a pair of data input/output lines, and includes a MOS transistor connected between one of the data input/output lines and a node of a precharge voltage and a MOS transistor connected between the other data input/output line and a node of the precharge voltage. The gates of the MOS transistors are supplied with control signals so that the MOS transistors are turned on when the data input/output lines are precharged. A MOS transistor is connected to the data input/output lines for equalizing them. The precharge voltage is set to half of a value obtained by subtracting the threshold voltage of the MOS transistor from the power supply voltage.
    • 本发明提供一种半导体存储器件,其能够降低其电流消耗,控制噪声的产生,并且使用施加到预充电电路的预充电电压来增加存取。 在半导体存储器件中,预充电电路连接到一对数据输入/输出线,并且包括连接在数据输入/输出线之一和预充电电压的节点之间的MOS晶体管和连接在 其他数据输入/输出线和预充电电压的节点。 MOS晶体管的栅极被提供控制信号,使得当数据输入/输出线被预充电时MOS晶体管导通。 MOS晶体管连接到数据输入/输出线,以使它们均衡。 预充电电压被设定为通过从电源电压减去MOS晶体管的阈值电压而获得的值的一半。
    • 87. 发明授权
    • Electrically erasable progammable read-only memory with nand cell blocks
    • 具有n个单元块的电可擦除可编程只读存储器
    • US5247480A
    • 1993-09-21
    • US773723
    • 1991-10-09
    • Yasuo ItohMasaki MomodomiYoshihisa IwataTomoharu TanakaFujio Masuoka
    • Yasuo ItohMasaki MomodomiYoshihisa IwataTomoharu TanakaFujio Masuoka
    • G11C16/08G11C16/12G11C16/30
    • G11C16/08G11C16/12G11C16/30
    • An electrically erasable programmable read-only memory has memory cell blocks, each of which has NAND type cell units associated with the bit lines respectively. Each cell unit has a series-circuit of floating gate type memory cell transistors and a selection transistor provided between the corresponding bit line and the series-circuit of memory cell transistors. A row decoder is provided in common to the memory cell blocks, for generating an "H" level voltage which is supplied to a selection gate control line connected to the selection transistor and to a selected word line or lines in a cell unit. A voltage boost circuit is provided for every memory cell block, for causing the "H" level voltage to increase up to a preselected potential level which is high enough to render the cell transistors conductive. The voltage boost circuit includes a first booster section for the selection gate control line, and a second section for the word lines. The second section operates in response to the output voltage of the first section.
    • 电可擦除可编程只读存储器具有存储单元块,每个存储单元块分别具有与位线相关联的NAND型单元单元。 每个单元单元具有浮置型存储单元晶体管的串联电路和设置在相应位线和存储单元晶体管的串联电路之间的选择晶体管。 向存储单元块共同地提供行解码器,用于产生提供给连接到选择晶体管的选择栅极控制线和单元单元中所选择的字线或线的“H”电平电压。 为每个存储单元块提供升压电路,用于使“H”电平电压增加到足以使单元晶体管导通的预选电位电平。 升压电路包括用于选择栅极控制线的第一升压部分和用于字线的第二部分。 第二部分响应于第一部分的输出电压而工作。
    • 88. 发明授权
    • Semiconductor sense circuit suitable for buffer circuit in semiconductor
memory chip
    • 半导体感应电路适用于半导体存储芯片中的缓冲电路
    • US4764693A
    • 1988-08-16
    • US48813
    • 1987-05-12
    • Yoshihisa Iwata
    • Yoshihisa Iwata
    • G11C11/413G11C7/06G11C7/10G11C8/06G11C11/408H03K17/04H03K3/356H03K17/687H03K19/01
    • G11C7/1057G11C7/065G11C7/1051G11C8/06
    • A sense circuit for use in a semiconductor memory senses an input signal by comparing the input signal with a reference voltage. The sense circuit comprises a sense amplifier having first and second nodes, and first and second transfer gates. The first transfer gate couples the input signal to the first node of the sense amplifier. The second transfer gate couples the reference voltage to the second node of the sense amplifier. A level-shift circuit is provided between the second node of the sense amplifier and the second transfer gate. In response to the voltage level of the input signal latched in the first node, the level-shift circuit shifts the level of the reference voltage latched in the second node of the sense amplifier to a lower level when the input signal is high in voltage level, and shifts it to a higher level when the input signal is low in voltage level.
    • 用于半导体存储器的感测电路通过将输入信号与参考电压进行比较而感测输入信号。 感测电路包括具有第一和第二节点的读出放大器以及第一和第二传输门。 第一传输门将输入信号耦合到读出放大器的第一节点。 第二传输门将参考电压耦合到读出放大器的第二个节点。 在读出放大器的第二节点和第二传输门之间提供电平移位电路。 响应于在第一节点中锁存的输入信号的电压电平,当输入信号的电压电平高时,电平移位电路将读出放大器的第二节点中锁存的参考电压的电平移位到较低电平 ,并且当输入信号的电压电平低时,将其移动到更高的电平。
    • 90. 发明授权
    • Non-volatile semiconductor storage device
    • 非易失性半导体存储器件
    • US08203882B2
    • 2012-06-19
    • US12718353
    • 2010-03-05
    • Tomoo HishidaYoshihisa Iwata
    • Tomoo HishidaYoshihisa Iwata
    • G11C16/04
    • G11C16/0483G11C16/08G11C16/16H01L27/11578H01L27/11582H01L29/792
    • When a data erase operation is performed in one memory cell block, a first voltage is applied to one source line selected from m source lines in the one memory cell block. A second voltage equal to a voltage of the source lines before the data erase operation begins is applied to the other source lines. Then, after a certain time delay from application of the first voltage, a third voltage smaller than the first voltage is applied to a third conductive layer of a source-side selection transistor connected to a selected source line. Then, a hole current is produced near a third gate insulation layer due to a potential difference between the first and third voltage. A fourth voltage is applied to one of first conductive layers connected to one of the memory transistor to be erased. The other first conductive layers are brought into a floating state.
    • 当在一个存储单元块中执行数据擦除操作时,将第一电压施加到从一个存储单元块中的m个源极线中选择的一个源极线。 在数据擦除操作开始之前等于源极线的电压的第二电压被施加到其它源极线。 然后,在施加第一电压的一定的时间延迟之后,将小于第一电压的第三电压施加到连接到所选择的源极线的源极侧选择晶体管的第三导电层。 然后,由于第一和第三电压之间的电位差,在第三栅极绝缘层附近产生空穴电流。 将第四电压施加到连接到要擦除的存储晶体管之一的第一导电层之一。 其他第一导电层进入浮置状态。