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    • 11. 发明申请
    • Logic Design Verification Techniques for Liveness Checking With Retiming
    • 逻辑设计验证技术,用于重新定义活动检查
    • US20100223584A1
    • 2010-09-02
    • US12394560
    • 2009-02-27
    • Jason R. BaumgartnerGabor BobokPaul Joseph RoesslerMark Williams
    • Jason R. BaumgartnerGabor BobokPaul Joseph RoesslerMark Williams
    • G06F17/50
    • G06F17/5031G06F17/504G06F2217/84
    • A technique for verification of a retimed logic design using liveness checking includes assigning a liveness gate to a liveness property for an original netlist and assigning a fairness gate to a fairness constraint for the original netlist. In this case, the fairness gate is associated with the liveness gate and is asserted for at least one time-step during any valid behavioral loop associated with the liveness gate. The original netlist is retimed, using a retiming engine, to provide a retimed netlist. The liveness and fairness gates of the retimed netlist are retimed such that a lag of the fairness gate is no greater than a lag of the liveness gate. Verification analysis is then performed on the retimed netlist. Finally, when the verification analysis yields a valid counter-example trace for the retimed netlist, a liveness violation for the original netlist is returned.
    • 用于使用活动检查验证重新定时逻辑设计的技术包括将活跃门分配给原始网表的活动属性,并将公平门分配给原始网表的公平约束。 在这种情况下,公平门与活跃门相关联,并且在与活跃门相关联的任何有效行为循环期间被断言至少一个时间步长。 使用重新定时引擎重新计算原始网表,以提供重新定时的网表。 重新定义的网表的活跃和公平的门被重新定位,使得公平门的滞后不大于活跃门的滞后。 然后在重新定时的网表上进行验证分析。 最后,当验证分析为重新定时的网表产生有效的对照示例时,返回原始网表的活动违反。
    • 12. 发明授权
    • Resource based queue management system and method
    • 基于资源的队列管理系统和方法
    • US07746999B2
    • 2010-06-29
    • US11206723
    • 2005-08-18
    • Mark WilliamsJames Pavlic
    • Mark WilliamsJames Pavlic
    • H04M3/00
    • H04M3/5231
    • A queue management system interfaces with a resource management system and a queuing system in an environment that further includes an interim system. The queue management system comprises an interface to the resource management system for obtaining resource availability data and a management system. The resource availability data represents a resource termination time—and may include the resource termination time or data useful for calculating the resource termination time. The control system: i) obtains a value representing the expected interim system handling time, and ii) makes the interim system available for handling a subject client only if the expected interim system handling time period terminates prior to the resource termination time. The control system transfers the subject client to the queuing system to hold while waiting for connection to a resource for handling upon determining that the resource termination time is scheduled to occur prior to termination of the expected interim system handling time period.
    • 队列管理系统与进一步包括临时系统的环境中的资源管理系统和排队系统相连接。 队列管理系统包括到资源管理系统的接口,用于获取资源可用性数据和管理系统。 资源可用性数据表示资源终止时间,并且可以包括资源终止时间或用于计算资源终止时间的数据。 控制系统:i)获得表示期望的中间系统处理时间的值,以及ii)仅当预期的中间系统处理时间段在资源终止时间之前终止时,使临时系统可用于处理主题客户端。 控制系统在确定在预期的中间系统处理时间段的终止之前调度资源终止时间发生时,将主体客户端传送到排队系统以等待连接到资源进行处理。
    • 19. 发明申请
    • Low mass six degree of freedom stage for lithography tools
    • 光刻工具的低质量六自由度阶段
    • US20080024749A1
    • 2008-01-31
    • US11804734
    • 2007-05-18
    • Mark WilliamsAlton Phillips
    • Mark WilliamsAlton Phillips
    • G03B27/58G03B27/62H02K41/00
    • H02K41/03G03F7/70716G03F7/70758H02K2201/18
    • A reticle or wafer stage mover with six degrees of freedom, a low mass coarse stage, and the ability to move an object in a scanning direction in a lithography tool. The mover includes a coarse stage and a fine stage configured to support the object and supported by the coarse stage. A set of actuators is provided to move the fine stage in six degrees of freedom. All of the actuators contribute to accelerating the object and the fine stage in the scanning direction. With all the actuators generating the necessary force to move the fine stage, a single large actuator to push the fine stage in the scanning direction is eliminated. The size or mass of the coarse stage is therefore reduced. All of the actuators are also capable of generating a second force in either the X or Z directions. The actuators therefore also enable the fine stage and the object it supports to be positioned in six degrees of freedom, as well as moved in the scanning direction.
    • 具有六个自由度,低质量粗糙阶段的光罩或晶片台移动器,以及在光刻工具中沿扫描方向移动物体的能力。 动子包括一个粗略的阶段和一个精细的阶段,被配置成支撑物体并由粗糙的阶段支撑。 提供一组致动器以使六个自由度的精细台阶移动。 所有的执行器有助于在扫描方向上加速物体和细微的台阶。 由于所有的致动器产生必要的力以移动细小的台阶,消除了在扫描方向上推动精细台阶的单个大型致动器。 因此,粗级的尺寸或质量减小。 所有致动器还能够在X或Z方向上产生第二力。 因此,致动器也能使精细的台阶和它支撑的物体被定位在六自由度以及沿扫描方向移动。