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
    • 52. 发明授权
    • Negative edge flip-flops for muxscan and edge clock compatible LSSD
    • 用于muxscan和边缘时钟兼容LSSD的负边沿触发器
    • US07484149B2
    • 2009-01-27
    • US11276768
    • 2006-03-14
    • David E. Lackey
    • David E. Lackey
    • G01R31/28
    • G01R31/318541
    • A method of synchronous digital operation and scan based testing of an integrated circuit using a flip-flop. The flip-flop including a master latch having an input and a clock pin; a slave latch having an output, a first clock pin and a second clock pin, the slave latch connected to the master latch; a first AND gate having a first input, an inverted second input and an output, the output of the first AND gate connected to the first clock pin of the master latch; a second AND gate having a first input, an inverted second input and an output, the output of the second AND gate connected to the second input of the first AND gate and to the first clock pin of the slave latch.
    • 使用触发器的集成电路的同步数字操作和基于扫描的测试的方法。 触发器包括具有输入和时钟引脚的主锁存器; 具有输出的从锁存器,第一时钟引脚和第二时钟引脚,从锁存器连接到主锁存器; 具有第一输入,反相第二输入和输出的第一与门,连接到主锁存器的第一时钟引脚的第一与门的输出; 第二与门,其具有第一输入,反相第二输入和输出,第二与门的输出连接到第一与门的第二输入和从锁存器的第一时钟引脚。
    • 53. 发明申请
    • METHODS OF SYNCHRONOUS DIGITAL OPERATION AND SCAN BASED TESTING OF AN INTEGRATED CIRCUIT USING NEGATIVE EDGE FLIP-FLOPS FOR MUXSCAN AND EDGE CLOCK COMPATIBLE LSSD
    • 同步数字操作和扫描的测试方法使用负边缘FLIPPS对多功能和边缘时钟兼容的LSSD进行集成电路的测试
    • US20080270863A1
    • 2008-10-30
    • US12168210
    • 2008-07-07
    • David E. Lackey
    • David E. Lackey
    • G01R31/3177G06F11/25
    • G01R31/318541
    • A method of synchronous digital operation and scan based testing of an integrated circuit using a flip-flop. The method including: providing a flip-flop comprising: a master latch having an input and a clock pin; and a slave latch having an output, a first clock pin and a second clock pin; capturing data presented at said input of said master latch and transferring data stored in said master latch to said slave latch in response to a negative edge of a first clock signal on said clock pin of said master latch; launching data stored in said slave latch to said output of said slave latch in response to said negative edge of said first clock signal; and capturing data presented at said input of said master latch in response to a positive edge of a second clock signal on said clock pin of said master latch.
    • 使用触发器的集成电路的同步数字操作和基于扫描的测试的方法。 该方法包括:提供触发器,包括:具有输入和时钟引脚的主锁存器; 以及具有输出的从锁存器,第一时钟引脚和第二时钟引脚; 捕获在所述主锁存器的所述输入处呈现的数据,并且响应于所述主锁存器的所述时钟引脚上的第一时钟信号的负沿,将存储在所述主锁存器中的数据传送到所述从锁存器; 响应于所述第一时钟信号的所述负沿,将存储在所述从锁存器中的数据发射到所述从锁存器的所述输出; 以及响应于所述主锁存器的所述时钟引脚上的第二时钟信号的上升沿,捕获呈现在所述主锁存器的所述输入端的数据。
    • 58. 发明授权
    • On-board clock-control templates for testing integrated circuits
    • 用于测试集成电路的板载时钟控制模板
    • US06467044B1
    • 2002-10-15
    • US09421861
    • 1999-10-20
    • David E. Lackey
    • David E. Lackey
    • G06F108
    • G01R31/31727G06F1/10
    • An integrated circuit employing a built-in self testing is provided. The circuit comprises a clock controller, a plurality of logic domains, and a system clock. The clock controller includes a plurality of programmable clock templates. The logic domains operate based on clocks having different clocks and/or on different edges of the clocks and operable asynchronously with respect to the others of said logic domains. The system clock is distributed to the logic domains and to the clock controller. Herein, each logic domain generates master/slave signals in response to the received system clock and each of the clock templates distributes enabling signals to at least one corresponding logic domain. The enabling signals are for selectively gating the generated master/slave signals for distribution throughout at least one corresponding logic domain.
    • 提供了采用内置自检的集成电路。 电路包括时钟控制器,多个逻辑域和系统时钟。 时钟控制器包括多个可编程时钟模板。 逻辑域基于具有不同时钟的时钟和/或在时钟的不同边缘上操作,并且可以相对于所述逻辑域的其他逻辑域异步地操作。 系统时钟分配到逻辑域和时钟控制器。 这里,每个逻辑域响应于接收到的系统时钟而产生主/从信号,并且每个时钟模板将使能信号分配给至少一个对应的逻辑域。 使能信号用于选择性地选通所产生的主/从信号以分配至少一个对应的逻辑域。
    • 59. 发明授权
    • Integrated circuit device with improved clock signal control
    • 具有改进的时钟信号控制的集成电路器件
    • US5783960A
    • 1998-07-21
    • US893307
    • 1997-07-15
    • David E. Lackey
    • David E. Lackey
    • G01R31/3185H03K5/13
    • G01R31/318552
    • A remote clock signal generation means is provided which allows a plurality of clock signals to be generated remotely at the "leaf" level thereby removing the need to have multiple clock signals at the system, or "tree" level. More particularly, this system is designed for use in an LBIST circuit featuring LSSD master-slave clock control. This disclosure teaches a clock control method and structure in which the master and slave clocks are generated directly from the system clock after the clock powering logic to thereby avoid intrusion or modification effects associated with logical manipulation of the clock signals.
    • 提供了一种远程时钟信号产生装置,其允许以“叶”级远程生成多个时钟信号,从而消除了在系统或“树”级具有多个时钟信号的需要。 更具体地说,该系统设计用于具有LSSD主 - 从时钟控制的LBIST电路。 该公开内容教导了时钟控制方法和结构,其中主时钟和从时钟直接从时钟供电逻辑之后的系统时钟产生,从而避免与时钟信号的逻辑操作相关联的入侵或修改效应。