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    • 42. 发明申请
    • NON-VOLATILE SEMICONDUCTOR STORAGE SYSTEM
    • 非挥发性半导体存储系统
    • US20100034025A1
    • 2010-02-11
    • US12507366
    • 2009-07-22
    • Kosuke YANAGIDAIRAToshihiro SuzukiNaoya Tokiwa
    • Kosuke YANAGIDAIRAToshihiro SuzukiNaoya Tokiwa
    • G11C16/04G11C7/00G11C29/00
    • G11C16/349
    • There is provided a non-volatile memory having electrically rewritable non-volatile memory cells arranged therein. A controller controls operation at the non-volatile memory. The non-volatile memory comprises a status output section configured to output status information indicating a status of read operation, write operation or erase operation in the non-volatile memory cell. The controller comprises a control signal generating section configured to output a control signal for a certain operation in the non-volatile memory, and a control signal switching section configured to instruct the control signal generating section to switch the control signal based on the status information.
    • 提供了一种其中布置有电可重写非易失性存储单元的非易失性存储器。 控制器控制非易失性存储器的操作。 非易失性存储器包括状态输出部分,被配置为在非易失性存储器单元中输出指示读取操作,写入操作或擦除操作的状态的状态信息。 所述控制器包括:控制信号生成部,被配置为输出用于所述非易失性存储器中的某个操作的控制信号;以及控制信号切换部,被配置为指示所述控制信号生成部基于所述状态信息来切换所述控制信号。
    • 46. 发明申请
    • SEMICONDUCTOR STORAGE DEVICE
    • 半导体存储设备
    • US20080170435A1
    • 2008-07-17
    • US12015755
    • 2008-01-17
    • Naoya TokiwaNorihiro Fujita
    • Naoya TokiwaNorihiro Fujita
    • G11C16/34
    • G11C11/5642G11C11/5628G11C16/0483G11C2211/5621
    • A memory cell array has a plurality of multi-value memory cells arranged therein that can store information of two bits or more in one memory cell as a different page. In each of the data registers, an acceptable number setting register, which temporarily retains data read from the memory cell array, stores multiple acceptable numbers of data states corresponding to each state of threshold voltages of each of the pages in the multi-value memory cells. A selector selects, from the multiple acceptable numbers of data states, an acceptable number of data states for data retained in each of the data registers corresponding to each page of the multi-value memory cells. A comparator compares the number of data states retained in each of the data registers with the acceptable number of data states selected by the selector.
    • 存储单元阵列具有布置在其中的多个多值存储器单元,其可以将一个存储单元中的两位或更多位的信息存储为不同的页。 在每个数据寄存器中,临时保存从存储单元阵列读取的数据的可接受数量设置寄存器存储与多值存储器单元中的每个页的阈值电压的每种状态相对应的多个可接受数量的数据状态 。 选择器从多个可接受数量的数据状态中选择对应于多值存储器单元的每一页的每个数据寄存器中保留的数据的可接受数量的数据状态。 比较器将每个数据寄存器中保留的数据状态数与选择器选择的可接受的数据状态数进行比较。
    • 47. 发明申请
    • SEMICONDUCTOR MEMORY DEVICE
    • 半导体存储器件
    • US20080123410A1
    • 2008-05-29
    • US11773280
    • 2007-07-03
    • Masanobu ShirakawaNaoya Tokiwa
    • Masanobu ShirakawaNaoya Tokiwa
    • G11C11/34
    • G11C8/08G11C11/5628G11C11/5642G11C16/0483G11C16/26G11C29/835
    • A semiconductor memory device includes: a memory cell array with electrically rewritable and non-volatile memory cells arranged therein; a row decoder configured to select a memory cell in the memory cell array, the row decoder including a flag latch, in which a bad block flag is set for a bad block in the memory cell array; a sense amplifier configured to sense data of a selected memory cell in the memory cell array; and an output circuit configured to output read data in the sense amplifier, the output circuit including an output data fixing circuit configured to fix an output data at a logic level in accordance with the bad block flag.
    • 半导体存储器件包括:具有布置在其中的电可重写和非易失性存储单元的存储单元阵列; 行解码器,其被配置为选择存储单元阵列中的存储单元,所述行解码器包括标志锁存器,其中对所述存储单元阵列中的坏块设置坏块标志; 感测放大器,被配置为感测所述存储器单元阵列中的选定存储单元的数据; 以及输出电路,被配置为在所述读出放大器中输出读取数据,所述输出电路包括输出数据固定电路,其被配置为根据所述坏块标志将输出数据固定在逻辑电平。
    • 48. 发明授权
    • Nonvolatile semiconductor memory device
    • 非易失性半导体存储器件
    • US06950345B1
    • 2005-09-27
    • US10874361
    • 2004-06-24
    • Naoya Tokiwa
    • Naoya Tokiwa
    • G11C16/02G11C16/06
    • G11C16/22
    • A nonvolatile semiconductor memory device with a function of executing a verify operation for write data that is input from outside includes a memory cell array including memory cells arranged in a matrix, and a password storage area for storing password data, an input buffer that receives data input from outside, a first retaining circuit that retains input password data or write data, which is input to the input buffer, a verify sense amplifier that detects, at a time of the verify operation, the password data that is read out of the password storage area or data that is read out of the memory cell array, and a coincidence determination circuit that determines whether the input password data coincides with the read-out password data, or determines whether the write data coincides with the read-out data.
    • 具有执行从外部输入的写入数据的验证操作的功能的非易失性半导体存储器件包括:存储单元阵列,包括以矩阵形式排列的存储单元;以及用于存储密码数据的密码存储区域;接收数据的输入缓冲器 来自外部的输入,保持输入到输入缓冲器的输入密码数据或写入数据的第一保持电路,在验证操作时检测从密码读出的密码数据的验证读出放大器 存储区域或从存储单元阵列读出的数据,以及一致确定电路,其确定输入的密码数据是否与读出的密码数据一致,或者确定写入数据是否与读出的数据一致。
    • 49. 发明申请
    • THREE-DIMENSIONALLY STACKED NONVOLATILE SEMICONDUTOR MEMORY
    • 三维堆叠非易失性半导体存储器
    • US20110249498A1
    • 2011-10-13
    • US13164938
    • 2011-06-21
    • Naoya TOKIWAHideo Mukai
    • Naoya TOKIWAHideo Mukai
    • G11C11/34
    • G11C16/0483G11C8/08G11C16/08G11C16/30G11C29/028G11C2029/1202H01L27/11578H01L27/11582
    • A three-dimensionally stacked nonvolatile semiconductor memory of an aspect of the present invention including conductive layers stacked on a semiconductor substrate in such a manner as to be insulated from one another, a bit line which is disposed on the stacked conductive layers, a semiconductor column which extends through the stacked conductive layers, word lines for which the stacked conductive layers except for the uppermost and lowermost conductive layers are used and which have a plate-like planar shape, memory cells provided at intersections of the word lines and the semiconductor column, a register circuit which has information to supply a potential suitable for each of the word lines, and a potential control circuit which reads the information retained in the register circuit in accordance with an input address signal of a word line and which supplies a potential suitable for the word line corresponding to the address signal.
    • 本发明的一个方面的三维叠层的非易失性半导体存储器包括以彼此绝缘的方式堆叠在半导体衬底上的导电层,布置在层叠的导电层上的位线,半导体柱 其延伸穿过堆叠的导电层,使用除了最上面和最下面的导电层之外的层叠的导电层并且具有板状平面形状的字线,设置在字线和半导体柱的交叉处的存储单元, 具有提供适于每个字线的电位的信息的寄存器电路以及根据字线的输入地址信号读取保存在寄存器电路中的信息的电位控制电路,并提供适于 对应于地址信号的字线。