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
    • 6. 发明授权
    • Input of test conditions and output generation for built-in self test
    • 输入测试条件和输出产生内置自检
    • US07672803B1
    • 2010-03-02
    • US11006034
    • 2004-12-07
    • Mimi LeeDarlene HamiltonKen Cheong Cheah
    • Mimi LeeDarlene HamiltonKen Cheong Cheah
    • G01R27/28
    • G11C29/16G01R31/318511G11C16/04G11C29/12005G11C29/44
    • A system and method is discussed for providing programmable test conditions for a built-in self test circuit of a flash memory device. The present invention employs a flash memory having BIST circuit for testing the memory and a BIST interface circuit adapted to adjust the test conditions of the memory tests. The BIST interface circuit is operable to receive one or more global variables associated with the test conditions of a plurality of tests used on the flash memory and to output results of the memory tests based on the value of the variables. The global variables are used to adjust the test conditions and to trim one or more references used in various flash memory tests and operations. The system may further include a serial communications medium for communicating the global variables to the BIST interface and test results from the interface.
    • 讨论了一种用于为闪存器件的内置自测电路提供可编程测试条件的系统和方法。 本发明采用具有用于测试存储器的BIST电路的闪速存储器和适于调整存储器测试的测试条件的BIST接口电路。 BIST接口电路可操作以接收与闪存上使用的多个测试的测试条件相关联的一个或多个全局变量,并且基于变量的值输出存储器测试的结果。 全局变量用于调整测试条件并修剪用于各种闪存测试和操作的一个或多个引用。 该系统还可以包括用于将全局变量传送到BIST接口的串行通信介质以及来自接口的测试结果。
    • 7. 发明申请
    • FAST SINGLE PHASE PROGRAM ALGORITHM FOR QUADBIT
    • 用于四边形的快速单相程序算法
    • US20090103357A1
    • 2009-04-23
    • US11874076
    • 2007-10-17
    • Darlene HamiltonFatima BathulKulachet TanpairojOu Li
    • Darlene HamiltonFatima BathulKulachet TanpairojOu Li
    • G11C16/10
    • G11C16/10G11C11/5671G11C16/0475G11C16/3418G11C2211/5621
    • Methods of rapidly programming a wordline of multi-level flash memory cells comprising memory cell element-pairs having three or more data levels per bit or element corresponding to three or more threshold voltages are provided. An interactive program algorithm rapidly programs the elements of the wordline of memory cells in a learn phase and a single core programming phase. In one embodiment, each wordline comprises learn element-pairs first programmed to provide learn drain voltages for programming core element-pairs along the wordline having the same program pattern of data levels. A set comprising one or more program patterns is chosen to correspond with each program level used on the wordline. The learn element-pairs are programmed to determine a learned program drain voltage for each program level. This learned program drain voltage essentially provides a wordline and program level specific program characterization of the Vd required for the remaining elements of that wordline.
    • 提供了快速编程多级闪存单元的字线的方法,其包括每位具有三个或更多个数据级或对应于三个或更多阈值电压的元件的存储单元元件对。 交互式程序算法在学习阶段和单个核心编程阶段快速地对存储器单元的字线的元素进行编程。 在一个实施例中,每个字线包括首先被编程为提供学习漏极电压的学习元件对,用于沿着具有相同数据级别的程序模式的字线编程核心元件对。 选择包括一个或多个节目模式的集合以对应于字线上使用的每个节目级别。 学习元件对被编程以确定每个程序级的学习程序漏极电压。 这个学习的程序漏极电压基本上提供了字线和程序级特定程序表征该字母的剩余元件所需的Vd。
    • 8. 发明授权
    • Multi-level ONO flash program algorithm for threshold width control
    • US07130210B2
    • 2006-10-31
    • US11034642
    • 2005-01-13
    • Fatima BathulDarlene HamiltonMasato Horiike
    • Fatima BathulDarlene HamiltonMasato Horiike
    • G11C17/00
    • G11C16/16G11C11/5671
    • Methods of programming a wordline of multi-level flash memory cells (MLB) having three or more data levels per bit corresponding to three or more threshold voltages are provided. The present invention employs an interactive program algorithm that programs the bits of the wordline of memory cells in two programming phases, comprising a rough programming phase and a fine programming phase to achieve highly compact Vt distributions. In one example, cell bit-pairs that are to be programmed to the same program pattern are selected along a wordline. Groups of sample bits are chosen for each wordline to represent each possible program level. The sample bits are then programmed to determine a corresponding drain voltage at which each sample group is first programmed. This fast-bit drain voltage (Fvd) for each program level essentially provides a wordline specific program characterization of the Vt required for the remaining bits of that wordline. In the rough programming phase, the bits of core cells are then programmed from a starting point that is relative to (e.g., slightly less than or equal to) the fast-bit Vd and according to a predetermined Vd and Vg profile of programming pulses. The bits of the complementary bit-pairs are alternately programmed in this way until the Vt of the bits attains a rough Vt level, which is offset lower than the final target threshold voltage level. Then in the second fine programming phase, the bits of the MLB cells of the wordline are further programmed with another predetermined Vd and Vg profile of programming pulses until the final target threshold voltage is achieved. The Vd and Vg profiles of programming pulses may further be tailored to accommodate the various bit-pair program pattern combinations possible. In this way, the bits of each wordline are fine-tune programmed to a data state to achieve a more precise Vt distribution, while compensating for the effects of complementary bit disturb.