User manual CADENCE DESIGN SYSTEMS VIRTUOSO LAYOUT MIGRATE DATASHEET

[. . . ] V Ir Tu o So LAy o uT MI g r AT E Figure 1: All components of the Virtuoso platform work together to support fast, silicon-accurate differentiated custom silicon G0007A DATASHEET The vIRTUOSO cUSTOm deSIgn plaTfORm When design objectives dictate manipulating precise analog quantities--voltages, currents, charges, and continuous ratios of parameter values such as resistance and capacitance--companies turn to custom design. Full-custom design maximizes performance while minimizing area and power. [. . . ] Virtuoso Layout Cadence 7105_Figure 2 All layout structure is preserved, including Migrate is also a cost-effective solution connectivity, properties, ports, paramcompared to a purely manual approach-- eters, Pcells, multi-part paths (MPPs), and saving both time and labor. This enables the layout preservation and parameterized cell (Pcell) generated by Virtuoso Layout Migrate to substitution capabilities enhance producbe linked with the schematic, rerouted tivity, while the menu-driven flow configuration environment makes the setup procedure straightforward and efficient. hierarchical gDS or Virtuoso data with a target process technology as input, and is returned an LVS/DrC-correct hierarchical gDS or Virtuoso layout. Abutment, alignment, and pitch matching are all handled implicitly with hierarchical optimization to improve ease of use and capacity on hierarchical and arrayed designs (see Figure 2). Hierarchy-aware migration and technology mapping of Pcell layout is also fully supported (see Figure 3). by the Virtuoso router, manually edited, or modified using other layout functions. optimal layout is achieved with native support for two-dimensional rules such as diagonal spacing, minimum area, 45° angles, common run, and end of line. Virtuoso Layout Migrate is a productionproven solution for advanced process geometries requiring special design rules, including preferred rules used for yield and performance improvements (see Figure 4). eaSY-TO-USe menU-dRIven SeTUp and flOW cOnfIgURaTIOn Virtuoso Layout Migrate includes an easy-to-use menu-driven setup and flow configuration system in the familiar BenefITS · rapid layout migration through support of all types of layout hierarchy--typically resulting in an order-of-magnitude productivity improvement Cadence 7105_Figure 3 over manual efforts · Two-dimensional compaction that produces high Qor as compared with other solutions using one-dimensional algorithms · Easy-to-use menu-driven setup and configuration, allowing new users to produce high-quality results within days of installation VIRTUOSO LAYOUT IMAGE Runtime = 10 min. 0. 18 hm Source Layout 90nm Pcell view of Layout Figure 2: Example of fast layout migration showing implicit handling of hierarchy and abutment · Support for complex design rules at 90 nanometers and beyond, targeted to improve yield and circuit performance · Efficient engineering change order (ECo) implementation feaTUReS faST hIeRaRchIcal and TWOdImenSIOnal cOmpacTIOn Virtuoso Layout Migrate has been architected from the ground up to handle hierarchy directly--to enable rapid migration of hierarchical layout such as memories, custom datapath blocks, and mixed-signal designs. The user provides Figure 3: Fast and accurate layout migration with Pcell preservation, with an example of the Pcell map file V Ir Tu o S o LAyou T MIgr ATE w w w. c a d e n ce. com Virtuoso environment (see Figure 5). With this menu system, the user can configure, run, and evaluate the results. The configurations menu allows the user to define an optimization flow consisting of preprocess, optimization, and postprocess commands. [. . . ] cadence, Sourcelink, and virtuoso are registered trademarks and the cadence logo is a registered trademark of cadence design Systems, Inc. all others are properties of their respective holders. [. . . ]