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    • 4. 发明授权
    • Compact sense amplifier for non-volatile memory
    • 用于非易失性存储器的紧凑型读出放大器
    • US08630120B2
    • 2014-01-14
    • US13277915
    • 2011-10-20
    • Min SheYan LiKwang-Ho KimSiu Lung Chan
    • Min SheYan LiKwang-Ho KimSiu Lung Chan
    • G11C11/34
    • G11C16/26G11C16/06G11C16/3418
    • A compact and versatile sense amp is presented. Among its other features this sense amp arrangement provides a way to pre-charge bit lines while doing data scanning. Another feature is that the sense amp circuit can provide a way to set three different bit line levels used in the quick pass write (QPW) technique using dynamic latch, where quick pass write is a technique where cells along a given word line selected for programming can be enabled, inhibited, or partially inhibited for programming. Also, it can provide a convenient way to measure the cell current.
    • 提出了一种紧凑且通用的感应放大器。 在其他功能中,这种感测放大器布置提供了一种在进行数据扫描时对位线进行预充电的方法。 另一个特征是,感测放大器电路可以提供一种使用动态锁存器来设置快速写入(QPW)技术中使用的三个不同位线电平的方法,其中快速写入是一种技术,其中沿着给定字线的单元格被选择用于编程 可以启用,禁止或部分禁止编程。 此外,它可以提供一种方便的方式来测量电池电流。
    • 7. 发明授权
    • Evaluating method of the fracture toughness using the continuous indentation method
    • 使用连续压痕法评估断裂韧性的方法
    • US07487051B2
    • 2009-02-03
    • US11667229
    • 2005-09-14
    • Kwang-Ho KimJung-Suk LeeYang-Won SeoYeol Choi
    • Kwang-Ho KimJung-Suk LeeYang-Won SeoYeol Choi
    • G01L1/00
    • G01N3/42G01N2203/0064G01N2203/0078
    • The present invention relates to a method of evaluating the fracture toughness of a material using the continuous indentation technique. In the method of this invention, the stress coefficient, strain hardening modulus and yield stress of the material are determined using the continuous indentation technique and, thereafter, the reduced elastic modulus (Er) of the material is calculated. The effective elastic modulus and the initial elastic modulus are calculated and, thereafter, the damage parameter is calculated using the void volume fraction. The critical elastic modulus and the characteristic fracture initiation point of the indentation depth are determined using the damage parameter and, thereafter, the fracture toughness of the material is evaluated. The present invention is advantageous in that the fracture toughness of a brittle material can be evaluated precisely using a nondestructive evaluation technique.
    • 本发明涉及使用连续压痕技术评价材料的断裂韧性的方法。 在本发明的方法中,使用连续压痕技术确定材料的应力系数,应变硬化模量和屈服应力,然后计算材料的弹性模量(Er)。 计算有效弹性模量和初始弹性模量,此后,使用空隙体积分数计算损伤参数。 使用损伤参数确定压痕深度的临界弹性模量和特征性断裂起始点,然后评估材料的断裂韧性。 本发明的优点在于,可以使用非破坏性评价技术精确地评价脆性材料的断裂韧性。