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    • 2. 发明授权
    • Semiconductor nonvolatile read only memory device
    • 半导体非易失性只读存储器件
    • US4531202A
    • 1985-07-23
    • US344049
    • 1982-01-29
    • Shigeyoshi WatanabeSumio Tanaka
    • Shigeyoshi WatanabeSumio Tanaka
    • G11C17/00G11C16/06G11C16/08G11C11/40
    • G11C16/08
    • A semiconductor nonvolatile read only memory device has a voltage applying circuit which sets all word lines at ground potential in a stand-by mode and sets only a selected word line at a high level in an active mode. The word lines are connected to the gates of semiconductor nonvolatile memory transistors. Each of the memory transistors has the source (or drain) grounded and the drain (or source) connected to output lines. In a stand-by mode, the voltage applying circuit keeps all the word lines at ground potential. In an active mode, the voltage applying circuit applies a high level voltage only to the selected word line. The memory transistor connected to the selected word line produces data of "0" or "1" to the output line.
    • 半导体非易失性只读存储器件具有电压施加电路,其以待机模式将所有字线设置为接地电位,并且在活动模式中仅将所选择的字线设置为高电平。 字线连接到半导体非易失性存储晶体管的栅极。 每个存储晶体管的源极(或漏极)接地,漏极(或源极)连接到输出线。 在待机模式下,电压施加电路使所有字线保持接地电位。 在有源模式下,电压施加电路仅对所选择的字线施加高电平电压。 连接到所选字线的存储晶体管对输出线产生“0”或“1”的数据。
    • 3. 发明授权
    • Chain ferroelectric random access memory (CFRAM) having an intrinsic transistor connected in parallel with a ferroelectric capacitor
    • 具有与铁电电容器并联连接的本征晶体管的链式铁电随机存取存储器(CFRAM)
    • US07295456B2
    • 2007-11-13
    • US11382098
    • 2006-05-08
    • Ryu OgiwaraDaisaburo TakashimaSumio TanakaYukihito OowakiYoshiaki Takeuchi
    • Ryu OgiwaraDaisaburo TakashimaSumio TanakaYukihito OowakiYoshiaki Takeuchi
    • G11C11/22
    • G11C11/22
    • A chain type ferroelectric random access memory has a memory cell unit including ferroelectric memory cells electrically connected in series to each other, a plate line connected to an electrode of the memory cell unit, a bit line connected to the other electrode of the memory cell unit via a switching transistor, a sense amplifier which amplifies the voltages of this bit line and its complementary bit line, and a transistor inserted between the switching transistor and the sense amplifier. A value, being the minimum value of the gate voltage in the transistor obtained during elevation of the plate line voltage and comparative amplification, is smaller than a value, being the maximum value of the gate voltage in the transistor obtained during fall of the plate line voltage and comparative amplification. With these features, decrease in the accumulated charge of polarization in the memory cell is reduced and occurrence of disturb is prevented during read/write operations.
    • 链式铁电随机存取存储器具有包括彼此串联电连接的铁电存储单元的存储单元单元,连接到存储单元单元的电极的板线,连接到存储单元单元的另一个电极的位线 通过开关晶体管,放大该位线及其互补位线的电压的读出放大器以及插在开关晶体管和读出放大器之间的晶体管。 作为板线电压和比较放大的升压期间获得的晶体管中的栅极电压的最小值的值小于在板线掉电期间获得的晶体管中的栅极电压的最大值 电压和比较放大。 利用这些特征,存储单元中的累积电荷的减小减少,并且在读/写操作期间阻止了干扰的发生。
    • 5. 发明授权
    • Ferroelectric memory
    • 铁电存储器
    • US6111777A
    • 2000-08-29
    • US401663
    • 1999-09-23
    • Ryu OgiwaraSumio Tanaka
    • Ryu OgiwaraSumio Tanaka
    • G11C14/00G11C11/22H01L27/10
    • G11C11/22
    • A dummy cell is provided in every column and consists of a dummy capacitor and two transistors. When the charge of the ferroelectric capacitor is released to one of a bit line pair, a first dummy word line is selected and charge of the dummy capacitor is released to the other of the bit line pair by way of one of the two transistors. When the charge of the ferroelectric capacitor is released to the other of the bit line pair, a second dummy word line is selected and the charge of the dummy capacitor is released to one of the bit line pair by way of the other one of the two transistors. When either one of the first and second dummy word lines is selected the dummy plate driver supplies a clock signal to the dummy capacitor.
    • 每个列提供一个虚拟单元,由虚拟电容器和两个晶体管构成。 当铁电电容器的电荷被释放到位线对中的一个时,选择第一虚拟字线,并且通过两个晶体管之一将虚拟电容器的电荷释放到位线对中的另一个。 当铁电电容器的电荷释放到位线对中的另一个时,选择第二虚拟字线,并且虚拟电容器的电荷通过两个位线对中的另一个被释放到位线对中的一个 晶体管。 当选择第一和第二虚拟字线中的任何一个时,虚拟板驱动器向虚拟电容器提供时钟信号。
    • 7. 发明授权
    • Apparatus for preventing glitch for semiconductor non-volatile memory
device
    • 用于防止半导体非易失性存储器件毛刺的装置
    • US5265061A
    • 1993-11-23
    • US943145
    • 1992-09-10
    • Sumio Tanaka
    • Sumio Tanaka
    • G11C7/14G11C17/12G11C7/00G11C11/40H03K19/003H03K19/0175
    • G11C17/12G11C7/14
    • A semiconductor non-volatile memory device having non-volatile memory cells for storing binary data, a plurality of column lines respectively connected to the plurality of memory cells and a plurality of row lines respectively connected to the plurality of memory cells comprising a plurality of dummy cells, having the same structure as the memory cells, respectively connected to the column lines and arranged to be set in an ON state upon being selected, a dummy row line connected to the plurality of dummy cells, a dummy row line selector for selecting the dummy row line for a predetermined period in response to a chip selection signal for selecting the memory device. Therefore, since the dummy row line is selected for the predetermined period before the memory device is selected by a computer system or the like, each of the column lines is set at a ground potential by a dummy memory cell set in an ON state. During a transition from the non-selected state to a selected state of the memory device, in synchronism with the transition from the non-selected state to the selected state of a target memory cell in a plurality of memory cells, the state of a dummy cell connected to the target memory cell transits from the selected state to the non-selected state.
    • 一种具有用于存储二进制数据的非易失性存储单元的半导体非易失性存储器件,分别连接到多个存储器单元的多个列线以及分别连接到多个存储器单元的多个行线,包括多个虚拟 单元,具有与存储单元相同的结构,分别连接到列线并被布置为在选择时被设置为ON状态,连接到多个虚设单元的虚拟行线,用于选择 响应于用于选择存储器件的芯片选择信号,预定周期的虚拟行线。 因此,由于在通过计算机系统等选择存储器件之前的预定时段内选择了虚拟行线,所以通过设置在ON状态的虚拟存储器单元将每条列线设置为接地电位。 在从非选择状态到存储器件的选择状态的转变期间,与从多个存储器单元中的目标存储器单元从未选择状态到选定状态的转换同步,虚拟的状态 连接到目标存储器单元的单元从所选状态转换到未选择状态。
    • 8. 发明授权
    • Data sense circuit for a semiconductor nonvolatile memory device
    • 用于半导体非易失性存储器件的数据检测电路
    • US5237534A
    • 1993-08-17
    • US854793
    • 1992-03-23
    • Sumio TanakaToshiyuki Sanko
    • Sumio TanakaToshiyuki Sanko
    • G11C16/04G11C16/28
    • G11C16/0441G11C16/28
    • The current paths of column selection transistors are inserted between a pair of input nodes, on the one hand, of a sense amplifier constituted by a current-mirror type differential amplifier, and column lines, on the other hand. The current paths of transistors for clamping column potential are inserted between the input nodes of the sense amplifier, on the one hand, and a power source, on the other. The gates of the transistors for clamping column potential are supplied with a bias potential lower than the potential of the power source. When data is read out from selected memory cells, the potential of the input nodes of the sense amplifier is clamped to a value lower than the potential Vcc of the power source by the transistors for clamping column potential. The storage data in the selected memory cells is input directly to the input nodes of the sense amplifier through the current paths of the column selection transistors.
    • 另一方面,列选择晶体管的电流路径插入在一对输入节点之间,一方面由电流镜型差分放大器构成的读出放大器和列线。 用于钳位列电势的晶体管的电流路径一方面插入在读出放大器的输入节点和另一端的电源之间。 用于钳位列电位的晶体管的栅极被提供有低于电源电位的偏置电位。 当从所选择的存储单元中读出数据时,读出放大器的输入节点的电位被钳位在用于钳位列电位的晶体管的电压低于电源的电位Vcc。 所选存储单元中的存储数据通过列选择晶体管的电流路径直接输入到读出放大器的输入节点。