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    • 2. 发明授权
    • Aware manufacturing of an integrated circuit
    • 意识到制造集成电路
    • US08302061B2
    • 2012-10-30
    • US13220678
    • 2011-08-29
    • Akira FujimuraLouis K. Scheffer
    • Akira FujimuraLouis K. Scheffer
    • G06F17/50
    • G03F7/70125
    • Some embodiments of the invention provide a process for designing and manufacturing an integrated circuit (“IC”). The process selects a wiring configuration and an illumination configuration. The process uses the selected wiring configuration to design an IC layout. The process then uses the selected illumination configuration to manufacture the IC based on the designed IC layout. Some embodiments concurrently select an optimal pair of wiring and illumination configurations. Other embodiments select an illumination configuration based on the selected wiring configuration. Yet other embodiments select a wiring configuration based on the selected illumination configuration. In some embodiments, selecting the illumination configuration entails selecting at least one stepper lens for the IC layout, where the stepper lens illuminates at least one mask for at least one particular layer of the IC layout. In some embodiments, this selection entails selecting a stepper lens for each particular layer of the IC layout. Also, in some embodiments, selecting the wiring configuration entails defining the width and/or spacing of the routes along different directions on at least one particular wiring layer of the IC layout. In some embodiments, this selection entails selecting width and/or spacing of routes along different directions on each particular layer of the IC layout.
    • 本发明的一些实施例提供了一种用于设计和制造集成电路(IC)的方法。 该过程选择接线配置和照明配置。 该过程使用选定的接线配置来设计IC布局。 然后,该过程使用所选择的照明配置来基于设计的IC布局来制造IC。 一些实施例同时选择一对最佳布线和照明配置。 其他实施例基于所选择的布线配置来选择照明配置。 其他实施例基于所选择的照明配置来选择布线配置。 在一些实施例中,选择照明配置需要为IC布局选择至少一个步进透镜,其中步进透镜照亮IC布局的至少一个特定层的至少一个掩模。 在一些实施例中,该选择需要为IC布局的每个特定层选择步进透镜。 此外,在一些实施例中,选择布线配置需要在IC布局的至少一个特定布线层上限定沿着不同方向的路线的宽度和/或间隔。 在一些实施例中,该选择需要选择在IC布局的每个特定层上沿不同方向的路线的宽度和/或间隔。
    • 3. 发明授权
    • Method, system, and computer program product for timing closure in electronic designs
    • 电子设计中的时序收敛的方法,系统和计算机程序产品
    • US07721237B2
    • 2010-05-18
    • US11866376
    • 2007-10-02
    • Louis K. SchefferDavid White
    • Louis K. SchefferDavid White
    • G06F17/50G06F9/45
    • G06F17/5068G06F17/5009G06F2217/12G06F2217/84Y02P90/265
    • Disclosed is a method, system, and computer program product for timing closure with concurrent models for fabrication, metrology, lithography, and/or imaging processing analyses for electronic designs. Some embodiments of the present invention disclose a method for timing closure with concurrent process model analysis which comprises the act of generating a design for the one or more interconnect levels; analyzing the effects of the concurrent models to predict feature dimension variations based upon the concurrent models; modifying the design files to reflect the variations; determining one or more parameters based upon the concurrent models; and determining the impact of concurrent models upon the electrical and timing performance. Some embodiments disclose a computerized system for implementing the method(s) disclosed herein. Some embodiments also disclosed a computer program product comprising executable code for the method(s) disclosed herein.
    • 公开了一种用于时序闭合的方法,系统和计算机程序产品,其具有用于电子设计的制造,计量,光刻和/或成像处理分析的并发模型。 本发明的一些实施例公开了一种用于具有并发过程模型分析的定时关闭的方法,其包括为一个或多个互连级别生成设计的动作; 分析并发模型的影响,基于并发模型预测特征尺寸变化; 修改设计文件以反映变化; 基于并发模型确定一个或多个参数; 并确定并发模型对电气和定时性能的影响。 一些实施例公开了用于实现本文公开的方法的计算机化系统。 一些实施例还公开了一种包括本文公开的方法的可执行代码的计算机程序产品。
    • 4. 发明授权
    • Physical integrated circuit design with uncertain design conditions
    • 物理集成电路设计,设计条件不确定
    • US07546562B1
    • 2009-06-09
    • US11558912
    • 2006-11-11
    • Louis K. Scheffer
    • Louis K. Scheffer
    • G06F17/50
    • G06F17/5068G06F2217/10
    • In one embodiment of the invention, a physical integrated circuit (IC) design tool is provided including a design uncertainties file, a user interface (UI) software module, and a design analysis software module coupled to the UI software module, and the design uncertainties file. The design uncertainties file includes a plurality of predetermined IC design uncertainties. The UI software module communicates the plurality of predetermined IC design uncertainties to a user for selection and receives the selected IC design uncertainties from the user. The design analysis software module analyzes a circuit in response to the selected IC design uncertainties.
    • 在本发明的一个实施例中,提供一种物理集成电路(IC)设计工具,其包括设计不确定性文件,用户界面(UI)软件模块和耦合到UI软件模块的设计分析软件模块,以及设计不确定性 文件。 设计不确定性文件包括多个预定的IC设计不确定性。 UI软件模块将多个预定的IC设计不确定性传达给用户进行选择,并从用户接收所选择的IC设计不确定性。 设计分析软件模块根据选定的IC设计不确定性对电路进行分析。
    • 8. 发明授权
    • Method and apparatus for reducing signal integrity and reliability problems in ICS through netlist changes during placement
    • 用于通过放置期间的网表更改来降低ICS中的信号完整性和可靠性问题的方法和装置
    • US06543041B1
    • 2003-04-01
    • US09333792
    • 1999-06-15
    • Louis K. SchefferJeffrey S. Salowe
    • Louis K. SchefferJeffrey S. Salowe
    • G06F1750
    • G06F17/5036G06F17/505G06F17/5068G06F17/5072
    • Described is a method for forming a physical layout on a chip floor for a circuit design based on a netlist. The method tentatively places each of the gates of the netlist to a physical location on the chip floor. The method then estimates potential signal integrity and reliability problems. If the placed net list is not acceptable for not being able to meet the requirements of the circuit design, the method modifies the netlist and re-places each of the gates in the modified netlist into a physical location on the chip floor. The method then re-estimates the potential signal integrity and reliability problems. The method repeats this process until the estimation to the-placed or re-placed netlist is acceptable for being able to meet the requirements of the circuit design.
    • 描述了一种用于在基于网表的电路设计的芯片地板上形成物理布局的方法。 该方法暂时将网表的每个门放置在芯片地板上的物理位置。 然后,该方法估计潜在的信号完整性和可靠性问题。 如果放置的网络列表不能满足不能满足电路设计的要求,则该方法修改网表并将修改的网表中的每个门重新放置在芯片层的物理位置。 该方法然后重新估计潜在的信号完整性和可靠性问题。 该方法重复此过程,直到对放置或重新放置的网表的估计是可接受的,以便能够满足电路设计的要求。
    • 9. 发明授权
    • Aware manufacturing of integrated circuits
    • 意识到集成电路制造
    • US08713484B2
    • 2014-04-29
    • US12731118
    • 2010-03-24
    • Louis K. SchefferAkira Fujimura
    • Louis K. SchefferAkira Fujimura
    • G06F17/50G03F1/00G03F7/00
    • G06F17/5068G03F7/70091G03F7/70125G03F7/70425G05B2219/35028G06F17/5081G06F2217/12Y02P90/265
    • Some embodiments of the invention provide a manufacturing aware process for designing an integrated circuit (“IC”) layout. The process receives a manufacturing configuration that specifies a set of manufacturing settings for a set of machines to be used to manufacture an IC based on the IC layout. The process defines a set of design rules based on the specified manufacturing configuration. The process uses the set of design rules to design the IC layout. Some embodiments of the invention provide a design aware process for manufacturing an integrated circuit (“IC”). The process receives an IC design with an associated set of design properties. The process specifies a manufacturing configuration that specifies a set of manufacturing settings for a set of machines to be used to manufacture the IC, where the specified set of manufacturing settings are based on the set of design properties. The process manufactures the IC based on the manufacturing settings.
    • 本发明的一些实施例提供了一种用于设计集成电路(“IC”)布局的制造感知过程。 该过程接收制造配置,其指定用于基于IC布局来制造IC的一组机器的一组制造设置。 该过程基于指定的制造配置定义一组设计规则。 该过程使用一组设计规则来设计IC布局。 本发明的一些实施例提供了用于制造集成电路(“IC”)的设计感知过程。 该过程接收具有相关联的一组设计属性的IC设计。 该过程指定制造配置,其指定用于制造IC的一组机器的一组制造设置,其中指定的一组制造设置基于该组设计属性。 该过程基于制造设置制造IC。
    • 10. 发明申请
    • METHOD AND APPARATUS FOR APPROXIMATING DIAGONAL LINES IN PLACEMENT
    • 用于对置放置对角线的方法和装置
    • US20120297354A1
    • 2012-11-22
    • US13476921
    • 2012-05-21
    • Louis K. Scheffer
    • Louis K. Scheffer
    • G06F17/50
    • G06F17/5072
    • Some embodiments of the invention provide a method for placing circuit modules in an integrated circuit (“IC”) layout. The method computes a placement metric for the IC layout. In some embodiments, computing the placement metric includes partitioning a region the IC layout into several sub-regions by using a cut graph, where the cut graph is an approximation of a diagonal cut line. These embodiments then generate congestion-cost estimates by measuring the number of nets cut by the cut graph. In some embodiments, the cut graph is a staircase cut graph. These staircase cut graphs include several horizontal and vertical cut lines. In some embodiments, the cut graph is a cut arc.
    • 本发明的一些实施例提供了一种将电路模块放置在集成电路(IC)布局中的方法。 该方法计算IC布局的布局度量。 在一些实施例中,计算布局度量包括通过使用切割图将IC布局的区域划分成若干子区域,其中切割图是对角线切割线的近似。 这些实施例然后通过测量由切割图切割的网络的数量来产生拥塞成本估计。 在一些实施例中,切割图是阶梯切割图。 这些楼梯切割图包括几个水平和垂直切割线。 在一些实施例中,切割图是切割弧。