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1. 发明授权

US08464196B1 Method and system for routing optimally between terminals through intermediate vias in a circuit design 有权
标题翻译：在电路设计中通过中间通孔在终端之间最佳路由的方法和系统
公开(公告)号：US08464196B1
公开(公告)日：2013-06-11
申请号：US13432904
申请日：2012-03-28
申请人： Randall Scott Lawson , Sean Bergan , Joseph Dexter Smedley , Paul S. Musto , Brett Allen Neal , Richard Allen Woodward, Jr. , Jelena Radumilo-Franklin , Frank Farmar , Gregory M. Horlick
发明人： Randall Scott Lawson , Sean Bergan , Joseph Dexter Smedley , Paul S. Musto , Brett Allen Neal , Richard Allen Woodward, Jr. , Jelena Radumilo-Franklin , Frank Farmar , Gregory M. Horlick
IPC分类号： G06F17/50
CPC分类号： G06F17/5077
摘要： A system and method are provided for establishing an automated routing environment in an electronic design automation (EDA) work flow for the routing of a circuit design. A user may merely specify a flow via pattern, a flow via location, and a start and end terminal and thereby, the auto router or path finder will automatically find the least-cost paths between each of the start terminals through at least one intermediate via of the flow via and ending at an end terminal. Upon successful routing of all needed terminals, an at least partially routed circuit design may be output.
摘要翻译：提供了一种用于在用于路由电路设计的电子设计自动化（EDA）工作流程中建立自动路由环境的系统和方法。用户可以仅通过模式，流经位置以及开始和结束终端来指定流，从而，自动路由器或路径寻找器将通过至少一个中间通道自动找到每个起始终端之间的最小成本路径的流动通道并在终端终止。在成功路由所有需要的终端之后，可以输出至少部分路由的电路设计。

2. 发明授权

US08250514B1 Localized routing direction 有权
标题翻译：本地化路由方向
公开(公告)号：US08250514B1
公开(公告)日：2012-08-21
申请号：US11457272
申请日：2006-07-13
申请人： Ken Wadland , Randall Lawson , Jelena Radumilo-Franklin
发明人： Ken Wadland , Randall Lawson , Jelena Radumilo-Franklin
IPC分类号： G06F17/50
CPC分类号： G06F17/5077 , G06F2217/06
摘要： A routing method for a multilayer circuit design layout that has a set of possible preferred local routing directions and a default preferred routing direction for each layer. The method receives a set of user specified constraints on routing directions for particular regions of the design layout. The method tessellates the available routing space into separate tiles and automatically defines a preferred local routing direction for each tile based on the user specified constraints. The set of user specified constraints includes user designated flows, locked etches, “etch keep-out” areas, user “planned” data, etc. A routing method for a multilayer design layout that receives a first set of user specified preferred routing directions for particular regions of the multilayer design layout. The method tessellates the available routing space into separate tiles and automatically defines a second preferred local routing direction for each tile based on the user specified preferred routing directions.
摘要翻译：一种用于多层电路设计布局的路由方法，其具有一组可能的优选局部路由方向和每层的默认优选路由方向。该方法在设计布局的特定区域的路由方向上接收一组用户指定的约束。该方法将可用的路由空间细分为单独的瓦片，并且基于用户指定的约束自动地为每个瓦片定义优选的本地路由方向。用户指定约束的集合包括用户指定的流，锁定蚀刻，“蚀刻保留”区域，用户“计划”数据等。用于多层设计布局的路由方法，其接收第一组用户指定的优选路由方向，特定区域的多层设计布局。该方法将可用路由空间细分为单独的瓦片，并且基于用户指定的优选布线方向自动定义每个瓦片的第二优选局部布线方向。

3. 发明授权

US07761836B1 Circuit autorouter with object oriented constraints 有权
标题翻译：具有面向对象约束的电路自动布线器
公开(公告)号：US07761836B1
公开(公告)日：2010-07-20
申请号：US11548288
申请日：2006-10-11
申请人： Ken Wadland , Sean Bergan , Charles W. Grant , Glendine Kingsbury , Randall Lawson , Jelena Radumilo-Franklin , Kota Sujan Reddy , Steve Russo , William Schilp , Davis Tsai , Keith Woodward , Richard Woodward , Jia Wu
发明人： Ken Wadland , Sean Bergan , Charles W. Grant , Glendine Kingsbury , Randall Lawson , Jelena Radumilo-Franklin , Kota Sujan Reddy , Steve Russo , William Schilp , Davis Tsai , Keith Woodward , Richard Woodward , Jia Wu
IPC分类号： G06F17/50
CPC分类号： G06F17/5077
摘要： In one embodiment of the invention, an object oriented autorouter is disclosed for routing nets in a circuit. The object oriented autorouter includes a routing data model (RDM); at least one routing engine, such as a single connection router (SCR), a topographical (TOPO) transformation engine, and a detail geometric (DETAIL) engine, and a command and control module (CCM) coupled together. The RDM reads and write data with a design database as well as reading one or more object oriented design constraints. Each of the routing engines have at least one action to operate on the design database to improve compliance of the circuit to a constraint. The CCM controls the overall routing process of the nets in the circuit and includes at least one director to invoke at least one of the routing engines to achieve compliance with one or more constraints.
摘要翻译：在本发明的一个实施例中，公开了一种面向对象的自动布线器，用于在电路中布线网络。面向对象的自动布线器包括路由数据模型（RDM）; 至少一个路由引擎，例如单个连接路由器（SCR），地形（TOPO）转换引擎和细节几何（DETAIL）引擎，以及耦合在一起的命令和控制模块（CCM）。 RDM使用设计数据库读取和写入数据，以及读取一个或多个面向对象的设计约束。每个路由引擎具有至少一个动作来对设计数据库进行操作以提高电路对约束的依从性。 CCM控制电路中网络的总体路由过程，并且包括至少一个导向器来调用至少一个路由引擎以实现符合一个或多个约束。

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