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Home → Products → Physical Design → LAYPAR LayPAROverview The LayTOOLS Place and Route package (LayPAR) may be used as a stand-alone tool or as an integrated component of the LayTOOLS Suite. Although initially targeted at medium-sized designs (more than 100,000 gates) for mixed-signal application, it does integrate advanced algorithms which allow it to handle even larger numbers of cells and macros in an efficient manner without manual intervention. The product comprises two components, LayPLACE and LayROUTE which may be controlled and executed independently or may be run in sequence seamlessly. It incorporates clock tree insertion and automatic generation of scan paths as well as handling dual power rail cells and power and ground rail connection. Features • fast placement algorithms (multiple coarse and fine trials)
• multilayer routing (channel router with over-cell and feed-through routing)
• no restriction on position of local origin of base cells
• separate options to control placement, routing, power, scan path, and parasitic extraction
• clock trees may be defined and included in the total block placement and routing
• automatic generation of scan path
• power and ground rail waffle format supported
• dual power rail option
• reduction of redundant vias with special routing mode (wireMode option)
• calculation and net-listing of parasitics
• stand-alone option using text definitions of cells and floor-plan
• integrated with LayED for viewing database and for graphical definition of cells and floor-plan
• generated layout may be interrogated for net names (database properties)
• integrated with LayVER for post-routing verification
• HSpice and PSpice net-lists may be imported using LayTOOLS conversion tools
• generates comprehensive report files, nodal information, final net-list, and parasitic table LayED screen example showing part of a LayPAR-generated digital block
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