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    • 2. 发明授权
    • Detector for alpha particle or cosmic ray
    • α粒子或宇宙射线探测器
    • US07057180B2
    • 2006-06-06
    • US10604416
    • 2003-07-18
    • John A. FifieldPaul D. KartschokeWilliam A. KlaasenStephen V. KosonockyRandy W. MannJeffery H. OppoldNorman J. Rohrer
    • John A. FifieldPaul D. KartschokeWilliam A. KlaasenStephen V. KosonockyRandy W. MannJeffery H. OppoldNorman J. Rohrer
    • G01T1/24
    • G11C11/4125
    • A detector circuit and method for detecting a silicon well voltage or current to indicate an alpha particle or cosmic ray strike of the silicon well. One significant application for the detection circuit of the present invention is for the redundancy repair latches that are used in SRAMs. The redundancy repair latches are normally written once at power-up to record failed latch data and are not normally written again. If one of the latches changes states due to an SER (Soft Error Rate-such as a strike by an alpha particle or cosmic ray) event, the repair data in the redundancy latches of the SRAM would now be incorrectly mapped. The detector circuit and method monitors the latches for the occurrence of an SER event, and responsive thereto issues a reload of the repair data to the redundancy repair latches. A first embodiment of the detector circuit differentially detects the floating voltages of first and second silicon wells during periods of non-operation of the circuits fabricated in the first and second silicon wells. In a second embodiment, a detector circuit monitors the background voltage level of a single silicon well over first and second consecutive periods of time. A second application for the detection circuit is for traditional logic circuits.
    • 一种用于检测硅阱电压或电流以指示硅阱的α粒子或宇宙射线冲击的检测器电路和方法。 本发明的检测电路的一个重要应用是用于SRAM中的冗余修复锁存器。 冗余修复锁存器在上电时通常写入一次,以记录失败的锁存数据,并且通常不会再次写入。 如果其中一个锁存器由于SER(软错误率(例如α粒子或宇宙射线的击穿))事件而改变状态,则SRAM的冗余锁存器中的修复数据现在将被错误地映射。 检测器电路和方法监视锁存器以发生SER事件,并且响应于此,将修复数据重新加载到冗余修复锁存器。 检测器电路的第一实施例在第一和第二硅阱中制造的电路的非操作期间差分地检测第一和第二硅阱的浮置电压。 在第二实施例中,检测器电路在第一和第二连续时间段内监测单个硅阱的背景电压电平。 检测电路的第二个应用是传统的逻辑电路。
    • 4. 发明授权
    • System technique for detecting soft errors in statically coupled CMOS logic
    • 用于检测静态耦合CMOS逻辑中的软错误的系统技术
    • US06453431B1
    • 2002-09-17
    • US09346509
    • 1999-07-01
    • Kerry BernsteinAndres BryantWilliam A. KlaasenWilbur David Pricer
    • Kerry BernsteinAndres BryantWilliam A. KlaasenWilbur David Pricer
    • G06K504
    • G11C5/005G06F11/00
    • Circuit for detecting error transients in logic circuits due to atomic events or other non-recurring noise sources includes a first circuit coupled to a data line for sensing a first signal on the data line at a first point in time (T1) and a second circuit coupled to the data line for sensing the first signal on the data line at a second point in time (T2) such that a time difference between T1 and T2 is small enough so that the first signal is still present on the data line in the absence of a perturbation event and such that the time difference between T1 and T2 is large enough so that any such perturbation event is resolved. A compare circuit coupled to the first and second circuits compares the sensing of the first signal by the first and second circuits, and generates an error signal in response to a non-compare.
    • 用于检测由于原子事件或其他非循环噪声源引起的逻辑电路中的错误瞬变的电路包括耦合到数据线的第一电路,用于感测在第一时间点(T1)的数据线上的第一信号,以及第二电路 耦合到数据线,用于在第二时间点(T2)感测数据线上的第一信号,使得T1和T2之间的时间差足够小,使得第一信号在不存在的情况下仍然存在于数据线上 的扰动事件,并且使得T1和T2之间的时间差足够大,使得任何这样的扰动事件被解决。 耦合到第一和第二电路的比较电路比较第一和第二电路对第一信号的感测,并且响应于非比较而产生误差信号。