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    • 51. 发明申请
    • SEMICONDUCTOR MEMORY DEVICE AND DEFECTIVE JUDGING METHOD THEREOF
    • 半导体存储器件及其有缺陷的判断方法
    • US20150071000A1
    • 2015-03-12
    • US14204165
    • 2014-03-11
    • KABUSHIKI KAISHA TOSHIBA
    • Yuzuru NAMAIManabu SATO
    • G11C29/12
    • G11C29/12005G11C7/04G11C29/025G11C29/028G11C2029/1202
    • A semiconductor memory device is provided with a plurality of memory cells connected to a plurality of word lines, a word-line leakage detector configured to detect a leakage current generated on at least one of the plurality of word lines, and a controller configured, when a leakage current is detected by the word-line leakage detector, to determine that a block including a memory cell connected to a word line through which the leakage current is flowing is defective. The word-line leakage detector has a detection voltage generator configured to generate a detection voltage in accordance with the leakage current, a comparator configured to generate a flag signal having output logic that is inverted depending on whether the detection voltage exceeds a predetermined threshold voltage, and an adjuster configured to adjust a current amount by diverting part of the leakage current in accordance with an ambient temperature.
    • 半导体存储器件具有连接到多个字线的多个存储器单元,字线泄漏检测器,被配置为检测在所述多个字线中的至少一个字线上产生的漏电流;以及控制器, 由字线泄漏检测器检测泄漏电流,以确定包括连接到泄漏电流流过的字线的存储单元的块有缺陷。 字线泄漏检测器具有检测电压发生器,被配置为根据泄漏电流产生检测电压,比较器被配置为产生具有根据检测电压是否超过预定阈值电压而反转的输出逻辑的标志信号, 以及调整器,被配置为通过根据环境温度转移部分泄漏电流来调节电流量。
    • 52. 发明申请
    • MEMORY, MEMORY SYSTEM INCLUDING THE SAME AND METHOD FOR OPERATING MEMORY
    • 存储器,包括其的存储器系统和操作存储器的方法
    • US20150043292A1
    • 2015-02-12
    • US14109582
    • 2013-12-17
    • SK hynix Inc.
    • Yo-Sep LEEChoung-Ki SONG
    • G11C29/08
    • G11C29/50012G11C29/025G11C29/08G11C2029/1202G11C2029/5002
    • A memory may include a plurality of word lines to which one or more memory cells are connected, and a control unit suitable for activating and precharging a first word line that is selected based on an address of a high-activated word line during a target refresh operation while sequentially activating and precharging the plurality of word lines in a refresh operation, wherein the control unit is suitable for writing a test data to one or more first memory cells connected to the first word line during the target refresh operation in a test mode, wherein the high-activated word line is a word line activated over a reference number or a reference frequency, among the plurality of word lines.
    • 存储器可以包括连接一个或多个存储器单元的多个字线,以及适于在目标刷新期间基于高激活字线的地址来选择的第一字线的激活和预充电的控制单元 在刷新操作中顺序地激活和预充电多个字线的操作,其中所述控制单元适合于在测试模式期间的目标刷新操作期间将测试数据写入连接到第一字线的一个或多个第一存储器单元, 其中所述高激活字线是在所述多个字线中的参考数字或参考频率上激活的字线。
    • 54. 发明申请
    • CODE COVERAGE CIRCUITRY
    • 代码覆盖电路
    • US20140325297A1
    • 2014-10-30
    • US14326622
    • 2014-07-09
    • Freescale Semiconductor, Inc.
    • Rafael M. VILELAWalter Luis TERCARIOLFernando Zampronho NETOSandro A. P. HADDAD
    • G11C29/12G11C7/16
    • G11C29/12015G06F11/3676G11C7/16G11C8/08G11C2029/1202
    • A method with a circuit that includes a memory (130) coupled to an analog line coverage circuit (104). The analog line coverage circuit includes a plurality of buffers (151-154) in which each buffer is coupled to one memory location of the memory, a plurality of bin cells (161-164) in which each bin cell is coupled to a buffer, a multiplexer (170), each input terminal of which is coupled to a bin cell, and an analog-to-digital converter (180) coupled to the multiplexer and to an output terminal of the analog line coverage circuit. The analog line coverage circuit stores an analog voltage that is representative of a number of occasions that a memory location is accessed, and outputs a signal indicative thereof. A processor (102), coupled to the memory and to the analog line coverage circuit, enables the analog line coverage circuit when the processor is in a debug mode.
    • 一种具有电路的方法,包括耦合到模拟线路覆盖电路(104)的存储器(130)。 模拟线路覆盖电路包括多个缓冲器(151-154),其中每个缓冲器耦合到存储器的一个存储器位置,其中每个存储单元耦合到缓冲器的多个存储单元(161-164) 多路复用器(170),其每个输入端耦合到一个二进制信元单元,以及耦合到多路复用器和模拟线路覆盖电路的输出端的模拟 - 数字转换器(180)。 模拟线路覆盖电路存储表示访问存储器位置的次数的模拟电压,并输出表示其的信号。 当处理器处于调试模式时,耦合到存储器和模拟线路覆盖电路的处理器(102)使能模拟线路覆盖电路。
    • 59. 发明授权
    • Defective word line detection
    • 字线检测不良
    • US08630118B2
    • 2014-01-14
    • US13292556
    • 2011-11-09
    • Manabu SakaiToru Miwa
    • Manabu SakaiToru Miwa
    • G11C16/04
    • G11C29/025G11C11/5628G11C16/0483G11C2029/1202G11C2211/5621
    • Methods and non-volatile storage systems are provided for detecting defects in word lines. A “broken” word line defect may be detected. Information may be maintained as to which storage elements were intended to be programmed to a tracked state. Then, after programming is complete, the storage elements are read to determine which storage elements have a threshold voltage below a reference voltage level associated with the tracked state. By tracking which storage elements are in the tracked state, elements associated with other states may be filtered out such that an accurate assessment may be made as to which storage elements were under-programmed. From this information, a determination may be made whether the word line is defective. For example, if too many storage elements are under-programmed, this may indicate a broken word line.
    • 提供了用于检测字线中的缺陷的方法和非易失性存储系统。 可能检测到“破碎”的字线缺陷。 可以保持关于哪些存储元件被编程为跟踪状态的信息。 然后,在完成编程之后,读取存储元件以确定哪些存储元件具有低于与跟踪状态相关联的参考电压电平的阈值电压。 通过跟踪哪些存储元件处于跟踪状态,可以滤除与其他状态相关联的元件,使得可以对哪些存储元件被编程不正确进行准确的评估。 根据该信息,可以确定字线是否有缺陷。 例如,如果存储元素太多被编程不当,则这可能表示一个破损的字线。