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    • 1. 发明授权
    • Voltage boost circuit using supply voltage detection to compensate for supply voltage variations in read mode voltage
    • 电压升压电路使用电源电压检测来补偿读取模式电压中的电源电压变化
    • US06535424B2
    • 2003-03-18
    • US09915018
    • 2001-07-25
    • Binh Q. LeMasaru YanoSantosh K. Yachareni
    • Binh Q. LeMasaru YanoSantosh K. Yachareni
    • G11C1604
    • G11C16/08G11C8/08
    • Flash memory array systems and methods are disclosed for producing a supply regulated boost voltage, wherein the application of a supply voltage to a supply voltage level detection circuit (e.g., analog to digital converter, digital thermometer) which is used to generating one or more supply voltage level detection signals from measurement of the supply voltage level applied to the voltage boost circuit, which may be used as a boosted wordline voltage for the read mode operations of programmed memory cells, and wherein the supply voltage level detection signals are applied to a boosted voltage compensation circuit to generate one or more boosted voltage compensation signals which are applied to a voltage boost circuit operable to generate a regulated boosted voltage for a flash memory array of programmed core cells. Thus, a fast compensation means is disclosed for the VCC power supply variations typically reflected in the output of the boost voltage circuit supplied to the word line of the flash memory array, thereby generating wordline voltages during the read mode which are substantially independent of variations in the supply voltage.
    • 闪存阵列系统和方法被公开用于产生电源调节升压电压,其中将电源电压施加到用于产生一个或多个电源的电源电压电平检测电路(例如,模数转换器,数字温度计) 电压电平检测信号来自测量施加到升压电路的电源电压电平,其可以用作用于编程存储器单元的读取模式操作的升压字线电压,并且其中电源电压电平检测信号被施加到升压 电压补偿电路以产生一个或多个升压电压补偿信号,所述升压电压补偿信号被施加到升压电路,所述升压电路可操作以产生用于编程核心单元的闪存阵列的调节升压电压。 因此,公开了一种快速补偿装置,用于通常反映在提供给闪速存储器阵列的字线的升压电压电路的输出中的VCC电源变化,从而在读取模式期间产生字线电压,其基本上与 电源电压。
    • 4. 发明授权
    • Semiconductor device and control method of the same
    • 半导体器件及其控制方法相同
    • US07969787B2
    • 2011-06-28
    • US12512638
    • 2009-07-30
    • Akira OgawaMasaru Yano
    • Akira OgawaMasaru Yano
    • G11C16/04
    • H01L27/1052G11C16/0466G11C16/28Y10T29/41
    • The present invention provides a semiconductor memory and a control method therefor, the semiconductor device including a first current-voltage conversion circuit (16) connected to a core cell (12) provided in a nonvolatile memory cell array (10), a second current-voltage conversion circuit (26) connected to a reference cell (22) through a reference cell data line (24), a sense amplifier (18) sensing an output from the first current-voltage conversion circuit and an output from the second current-voltage conversion circuit, a compare circuit (28) comparing a voltage level at the reference cell data line with a predefined voltage level, and a charging circuit (30) charging the reference cell data line, if the voltage level at the reference cell data line is lower than the predefined voltage level during pre-charging the reference cell data line. According to the present invention, the pre-charging period of the reference cell data line can be shortened, and the data read time can be shortened.
    • 本发明提供一种半导体存储器及其控制方法,所述半导体器件包括连接到设置在非易失性存储单元阵列(10)中的核心单元(12)的第一电流 - 电压转换电路(16),第二电流 - 电压转换电路(26),通过参考单元数据线(24)连接到参考单元(22);感测放大器(18),感测来自第一电流 - 电压转换电路的输出和来自第二电流电压 转换电路,将参考单元数据线上的电压电平与预定电压电平进行比较的比较电路(28)以及对参考单元数据线充电的充电电路(30),如果参考单元数据线上的电压电平为 在预充电参考单元数据线期间低于预定电压电平。 根据本发明,可以缩短参考单元数据线的预充电周期,并且可以缩短数据读取时间。
    • 6. 发明授权
    • Multiple programming of spare memory region for nonvolatile memory
    • 非易失性存储器的多余的备用存储区域编程
    • US07729169B2
    • 2010-06-01
    • US12126686
    • 2008-05-23
    • Masaru YanoAkira Ogawa
    • Masaru YanoAkira Ogawa
    • G11C11/34G11C16/04G11C16/06
    • G11C16/3418G11C16/28
    • Structures, methods, and systems for multiple programming of spare memory region for nonvolatile memory are disclosed. In one embodiment, a nonvolatile memory system comprises a main memory cell array, a spare memory cell array, and a memory controller that divides the spare memory cell array into at least a first region and a second region. The system further comprises a selection module for selecting the main memory cell array and the first region to write data and the first reference cell to write first reference data associated with the data during an initial data writing operation and for selecting the second region to write additional data and the second reference cell to write second reference data associated with the additional data during an additional data writing operation.
    • 公开了用于非易失性存储器的备用存储器区域的多次编程的结构,方法和系统。 在一个实施例中,非易失性存储器系统包括主存储单元阵列,备用存储单元阵列和将备用存储单元阵列划分成至少第一区域和第二区域的存储器控​​制器。 该系统还包括选择模块,用于选择主存储单元阵列和第一区域以写入数据,并且第一参考单元在初始数据写入操作期间写入与数据相关联的第一参考数据,并且用于选择第二区域以写入额外的数据 数据和第二参考单元以在附加数据写入操作期间写入与附加数据相关联的第二参考数据。
    • 10. 发明授权
    • Shift register functioning in both latch mode and counter mode and flash
memory employing same
    • 移位寄存器在锁存模式和计数器模式下工作,闪速存储器采用相同的方式
    • US5926520A
    • 1999-07-20
    • US885174
    • 1997-06-30
    • Masaru Yano
    • Masaru Yano
    • G11C17/00G11C16/02G11C16/06G11C19/00H03K21/00
    • G11C16/06
    • The shift register includes a front stage latch portion for inputting input data when a clock signal is at a first level and latching the input data when the clock signal is at a second level, a rear stage latch portion for inputting data from the front stage latch portion when the clock signal is at the second level and latching the input data when the clock signal is at the first level, an input switch for connecting a data input terminal to the front stage latch portion when a mode switching signal is at a first level, and a feedback switch for connecting the rear stage latch portion to the front stage latch portion when the mode switching signal is at a second level. A latch mode clock signal is provided as the aforementioned clock signal when the mode switching signal is at the first level, and a counter mode clock signal or front stage shift register latch output signal is provided as the aforementioned clock signal when the mode switching signal is at the second level. The shift register functions in latch mode when the mode switching signal is at the first level, and functions with a plurality of stages thereof as a counter when at the second level. A flash memory equipped with the above shift registers which have a function whereby command flags of decoded external command signals are latched, and a counter function whereby counting is performed with the plural shift register stages.
    • 移位寄存器包括前级锁存部分,用于当时钟信号处于第一电平时输入输入数据,并且当时钟信号处于第二电平时锁存输入数据;后级锁存部分,用于从前级锁存器输入数据 当时钟信号处于第二电平并且当时钟信号处于第一电平时锁存输入数据;当模式切换信号处于第一电平时用于将数据输入端连接到前级锁存器部分的输入开关 以及反馈开关,用于当模式切换信号处于第二电平时将后级锁存部分连接到前级锁存器部分。 当模式切换信号处于第一电平时,提供锁存模式时钟信号作为上述时钟信号,并且当模式切换信号为模式切换信号时,提供计数器模式时钟信号或前级移位寄存器锁存输出信号作为上述时钟信号 在第二级。 当模式切换信号处于第一电平时,移位寄存器在锁存模式下起作用,并且当处于第二电平时,以多个级作为计数器起作用。 具有上述移位寄存器的闪速存储器具有锁定解码的外部命令信号的指令标志的功能,以及用多个移位寄存器级进行计数的计数器功能。