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    • 2. 发明申请
    • SYSTEM AND METHOD FOR GENERATING FLAT LAYOUT
    • 用于生成平面布局的系统和方法
    • WO2009070177A1
    • 2009-06-04
    • PCT/US2007/086181
    • 2007-11-30
    • CADENCE DESIGN SYSTEMS, INC.GINETTI, Arnold
    • GINETTI, Arnold
    • G06F17/50
    • G06F17/5045
    • The present invention provides a method for generating flat layout design view that comprises importing port definitions of a first hierarchical block of digital instances from a source as a schematic symbol, importing port definitions of digital instances within the first hierarchical block from the source, instantiating the schematic symbol as a hierarchical layout instance in the flat layout, binding the hierarchical layout instance to the schematic symbol, and embedding digital layout block instances within the design layout by replacing the digital instances of a digital layout block with digital layout instances of a top layout module of the design layout.
    • 本发明提供了一种生成平面布局设计视图的方法,其包括将来自源的第一层数字实例的端口定义作为示意符号导入,从源中导入第一分层块内的数字实例的端口定义, 原理图符号作为平面布局中的分层布局实例,将分层布局实例绑定到原理图符号,并将数字布局块实例嵌入设计布局中,通过用顶部布局的数字布局实例替换数字布局块的数字实例 模块的设计布局。
    • 6. 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
    • WO2007147147A2
    • 2007-12-21
    • PCT/US2007071397
    • 2007-06-15
    • CADENCE DESIGN SYSTEMS INCSCHEFFER LOUIS K
    • SCHEFFER LOUIS K
    • 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,切割图是梯形切割图。 这些楼梯切割图包括几条水平和垂直切割线。 在一些实施例中,切割图是切割弧。
    • 7. 发明申请
    • SIMULATION OF POWER DOMAIN ISOLATION
    • 电力域隔离的模拟
    • WO2007120888A2
    • 2007-10-25
    • PCT/US2007/009277
    • 2007-04-12
    • CADENCE DESIGN SYSTEMS, INC.CHEN, Yonghao
    • CHEN, Yonghao
    • G06F17/50
    • G06F17/5022G06F2217/78
    • Method and system for simulating isolation of a power domain are disclosed. The method includes receiving a netlist description of the circuit that is represented in a register- transfer-level (RTL) design environment, receiving power information specifications of the circuit, associating the plurality of power domains and the power information specifications in the RTL design environment, where the plurality of power domains are controlled by a set of power control signals through a power manager logic, isolating a power domain among the plurality of power domains for simulation, and simulating isolation behavior of the power domain in response to variations in power applied to the power domain.
    • 公开了用于模拟功率域隔离的方法和系统。 该方法包括:接收在注册转换级(RTL)设计环境中表示的电路的网表描述,接收电路的功率信息规范,将多个电源域和功率信息规范相关联,并将其与RTL设计环境 ,其中通过功率管理器逻辑通过一组功率控制信号来控制多个功率域,隔离多个功率域中的功率域进行模拟,以及响应于施加的功率变化来模拟功率域的隔离行为 到电力领域。
    • 8. 发明申请
    • MANUFACTURING AWARE DESIGN AND DESIGN AWARE MANUFACTURING
    • 制造设计和设计意识制造
    • WO2006127538A3
    • 2007-04-05
    • PCT/US2006019624
    • 2006-05-20
    • CADENCE DESIGN SYSTEMS INCSCHEFFER LOUIS KFUJIMURA AKIRA
    • SCHEFFER LOUIS KFUJIMURA AKIRA
    • G06F17/50G03C5/00G03F1/00G06K9/62
    • 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 (1205). The process receives a manufacturing configuration that specifies a set of manufacturing settings (1210) 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 (1215) based on the specified manufacturing configuration. The process uses the set of design rules to design the IC layout (1225). Some embodiments of the invention provide a design aware process for manufacturing an integrated circuit ("IC") (1227). The process receives an IC desig 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 (1230).
    • 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(1205)的制造感知过程。 该过程接收制造配置,其指定用于基于IC布局用于制造IC的一组机器的一组制造设置(1210)。 该过程基于指定的制造配置来定义一组设计规则(1215)。 该过程使用一组设计规则来设计IC布局(1225)。 本发明的一些实施例提供了一种用于制造集成电路(“IC”)的设计感知过程(1227)。 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(1230)。
    • 10. 发明申请
    • SYSTEM AND METHOD FOR STATISTICAL DESIGN RULE CHECKING
    • 统计设计规则检查系统与方法
    • WO2006127409A2
    • 2006-11-30
    • PCT/US2006/019305
    • 2006-05-19
    • CADENCE DESIGN SYSTEMS, INC.SCHEFFER, Louis K.
    • SCHEFFER, Louis K.
    • G06F17/50
    • G06F17/5081
    • Methods and systems for allowing an Integrated Circuit designer to specify one or more design rules, and to determine the expected probability of success of the IC design based on the design rules. Probability information is compiled for each circuit component, that specifies the probability of the circuit component working if a characteristic of the circuit component is varied. As the design rules are examined, the probability of each component working is calculated. The probabilities are combined to determine the overall probability of success for the IC design. Furthermore, the IC design may be broken into a plurality of portions, and design rules can be separately specified for each portion. This allows a designer the flexibility to use different design rules on different portions of the IC design.
    • 允许集成电路设计者指定一个或多个设计规则的方法和系统,并且基于设计规则确定IC设计成功的预期概率。 针对每个电路组件编制概率信息,其指定电路组件的特性如果变化时电路组件工作的概率。 随着设计规则的检验,每个部件工作的概率被计算出来。 将概率相结合以确定IC设计的成功概率。 此外,IC设计可以被分成多个部分,并且可以为每个部分分别指定设计规则。 这允许设计人员灵活地在IC设计的不同部分使用不同的设计规则。