会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 3. 发明授权
    • Dynamic semiconductor memory device of a twisted bit line system having
improved reliability of readout
    • 扭转位线系统的动态半导体存储器件具有改进的读出可靠性
    • US4977542A
    • 1990-12-11
    • US400898
    • 1989-08-30
    • Yoshio MatsudaKazuyasu FujishimaTsukasa OoishiKazutami ArimotoMasaki Tsukude
    • Yoshio MatsudaKazuyasu FujishimaTsukasa OoishiKazutami ArimotoMasaki Tsukude
    • G11C11/401G11C7/14G11C7/18G11C8/14
    • G11C7/14G11C7/18G11C8/14
    • An arrangement for providing a compensation of capacitance coupling between word lines and bit lines in a memory structure including twisted bit lines. Two dummy word lines maintained at a predetermined potential are formed at a twisted portion of a pair of bit lines. Dummy cells are provided at respective twisted portions of the dummy word lines and the bit lines. A plurality of word lines are formed in a direction intersecting with the bit lines and the word lines are divided into four word line groups according to positions of the twisted portions of the bit line pairs. When an arbitrary word line is selected, a potential of at least one dummy word line corresponding to the word line group to which the selected word line belongs is lowered. Consequently, the rise of the potential of the bit lines caused by the selection of the word line is compensated for by the lowering of the potential of at least one dummy word line, making it possible to decrease errors in reading. Particular cell layer arrangements simplify increase in integration density in the combination of dummy cell compensation with the twisted bit line balancing of capacitance coupling.
    • 一种用于在包括扭转位线的存储器结构中提供字线和位线之间的电容耦合补偿的装置。 保持在预定电位的两个虚拟字线形成在一对位线的扭转部分。 在虚拟字线和位线的相应扭转部分设置虚拟单元。 在与位线相交的方向上形成多个字线,并且根据位线对的扭绞部分的位置将字线分成四个字线组。 当选择任意字线时,与所选字线所属的字线组对应的至少一个虚拟字线的电位降低。 因此,通过降低至少一个虚拟字线的电位来补偿由字线的选择引起的位线的电位的上升,使得可以减少读取中的误差。 特殊的单元层布置简化了虚拟单元补偿与电容耦合的扭转位线平衡组合的集成密度的增加。
    • 7. 发明授权
    • Semiconductor memory device with redundancy circuit
    • 具有冗余电路的半导体存储器件
    • US5504713A
    • 1996-04-02
    • US180166
    • 1994-01-11
    • Tsukasa OoishiYoshio MatsudaKazutami ArimotoMasaki TsukudeKazuyasu Fujishima
    • Tsukasa OoishiYoshio MatsudaKazutami ArimotoMasaki TsukudeKazuyasu Fujishima
    • G11C29/00G11C7/00
    • G11C29/806G11C29/781
    • A semiconductor memory device comprises two memory cell arrays (1a, 1b) in which a block divisional operation is performed. Two spare rows (2a, 2b) are provided corresponding to the two memory cell arrays (1a, 1b). Spare row decoders (5a, 5b) are provided for selecting the spare rows (2a, 2b), respectively. One spare row decoder selecting signal generation circuit (18) used in common by the spare row decoders (5a, 5b) is provided. The spare row decoder selecting signal generation circuit (18) can be previously set so as to generate a spare row decoder selecting signal (SRE) when a defective row exists in either of the memory cell arrays (1a, 1b) and the defective row is selected by row decoder groups (4a, 4b). Each of the spare row decoders (5a, 5b) is activated in response to the spare row decoder selecting signal (SRE) and a block control signal.
    • 半导体存储器件包括执行块分割操作的两个存储单元阵列(1a,1b)。 对应于两个存储单元阵列(1a,1b)提供两个备用行(2a,2b)。 备用排解码器​​(5a,5b)分别用于选择备用行(2a,2b)。 提供了由备用行解码器(5a,5b)共同使用的一个备用行解码器选择信号生成电路(18)。 可以预先设置备用行解码器选择信号生成电路(18),以便当在存储单元阵列(1a,1b)和缺陷行中存在缺陷行时产生备用行解码器选择信号(& upbar&S) 由行解码器组(4a,4b)选择。 每个备用行解码器(5a,5b)响应于备用行解码器选择信号(& S& S)和块控制信号被激活。
    • 8. 发明授权
    • Semiconductor memory device with redundancy circuit
    • 具有冗余电路的半导体存储器件
    • US5289417A
    • 1994-02-22
    • US958466
    • 1992-10-08
    • Tsukasa OoishiYoshio MatsudaKazutami ArimotoMasaki TsukudeKazuyasu Fujishima
    • Tsukasa OoishiYoshio MatsudaKazutami ArimotoMasaki TsukudeKazuyasu Fujishima
    • G11C29/00
    • G11C29/806G11C29/781
    • A semiconductor memory device comprises two memory cell arrays (1a, 1b) in which a block divisional operation is performed. Two spare rows (2a, 2b) are provided corresponding to the two memory cell arrays (1a, 1b). Spare row decoders (5a, 5b) are provided for selecting the spare rows (2a, 2b), respectively. One spare row decoder selecting signal generation circuit (18) used in common by the spare row decoders (5a, 5b) is provided. The spare row decoder selecting signal generation circuit (18) can be previously set so as to generate a spare row decoder selecting signal (SRE) when a defective row exists in either of the memory cell arrays (1a, 1b) and the defective row is selected by row decoder groups (4a, 4b). Each of the spare row decoders (5a, 5b) is activated in response to the spare row decoder selecting signal (SRE) and a block control signal.
    • 半导体存储器件包括执行块分割操作的两个存储单元阵列(1a,1b)。 对应于两个存储单元阵列(1a,1b)提供两个备用行(2a,2b)。 备用排解码器​​(5a,5b)分别用于选择备用行(2a,2b)。 提供了由备用行解码器(5a,5b)共同使用的一个备用行解码器选择信号生成电路(18)。 可以预先设置备用行解码器选择信号生成电路(18),以便当在存储单元阵列(1a,1b)中存在有缺陷行时产生备用行译码器选择信号(S(OVS)),并且 有缺陷的行由行解码器组(4a,4b)选择。 每个备用行解码器(5a,5b)响应于备用行解码器选择信号(S(OVS))和块控制信号被激活。
    • 10. 发明授权
    • Semiconductor memory device having on-chip test circuit and method for
testing the same
    • 具有片上测试电路的半导体存储器件及其测试方法
    • US5184327A
    • 1993-02-02
    • US727218
    • 1991-07-09
    • Yoshio MatsudaKazutami ArimotoTsukasa OoishiMasaki TsukudeKazuyasu Fujishima
    • Yoshio MatsudaKazutami ArimotoTsukasa OoishiMasaki TsukudeKazuyasu Fujishima
    • G11C29/30
    • G11C29/30
    • In a memory cell array of a semiconductor memory device, a plurality of detection circuits (14, 15, 20) are provided in correspondence with a plurality of columns. An output line (L) is provided in common to the detection circuits (14, 15 20). The output line (L) is provided with plural junction points (n1 to nn) to which detection results from the detection circuits (14, 15 20) are separately applied. Dividing transistors (T1 to Tn) are provided between the junction points (n1 to nn). During testing, the word lines (WL1 to WLn) are selected sequentially. Test results for the memory cells (MC1 to MC4) connected to the selected word line are outputted at the corresponding junction points (n1 to nn), respectively. Simultaneously, a dividing transistor corresponding to the selected word line is rendered non-conductive, the remaining dividing transistors being rendered conductive. As a result, the output line (L) is divided into two parts at a portion of the non-conductive transistor. Detection results outputted to the respective divided parts of the output line (L) are monitored and a portion at which a detection result is changed in each divided part is found out.
    • 在半导体存储器件的存储单元阵列中,与多个列对应地提供多个检测电路(14,15,20)。 输出线(L)与检测电路(14,1520)共同设置。 输出线(L)具有分别施加有检测电路(14,15,20)的检测结果的多个连接点(n1〜nn)。 分接晶体管(T1至Tn)设置在连接点(n1至nn)之间。 在测试期间,顺序选择字线(WL1至WLn)。 连接到所选字线的存储单元(MC1至MC4)的测试结果分别在对应的连接点(n1至nn)输出。 同时,与所选字线对应的分割晶体管不导通,剩余的分割晶体管导通。 结果,输出线(L)在非导电晶体管的一部分被分成两部分。 检测输出到输出线(L)的分割部分的检测结果,并且求出检测结果在各分割部分发生变化的部分。