{"id":31074,"date":"2005-06-01T00:02:14","date_gmt":"2005-06-01T00:02:14","guid":{"rendered":"https:\/\/silvaco.com\/%eb%b6%84%eb%a5%98%eb%90%98%ec%a7%80-%ec%95%8a%ec%9d%8c\/experts-netlist-driven-layout\/"},"modified":"2021-07-16T21:49:30","modified_gmt":"2021-07-17T04:49:30","slug":"experts-netlist-driven-layout","status":"publish","type":"post","link":"https:\/\/silvaco.com\/ko\/simulation-standard-ko\/experts-netlist-driven-layout\/","title":{"rendered":"Expert\u2019s Netlist Driven Layout"},"content":{"rendered":"
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Expert<\/em>\u2019s Netlist Driven Layout<\/h1>\n

Expert<\/strong><\/em>\u00a0features a powerful Netlist Driven Layout (NDL) function to assist the user in creating a layout. It increases the productivity of layout design by automating cell generation and providing visual cues to assist in the wiring process. In this example, a latch circuit layout will be built based on developed child cells.<\/p>\n

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  1. Open <latch.eld<\/strong>> project file from\u00a0Expert<\/em><\/strong>. In this project, there are some cells (such as INVX, MNL, MPL) etc developed and ready to be used to generate the latch circuit. See Figure 1.<\/li>\n
  2. Make sure that NDL options \u2018Show Nets\u2019, \u2018Show Pins\u2019 and \u2018Show Ports\u2019 are ON from \u2018Tools\u2013>Netlist Driven Layout\u2019 or toolbar.<\/li>\n
  3. Use \u2018Tools\u2021NDL\u2021Load Netlist\u2019 to load Gateway netlist <latch1.net<\/strong>>.<\/li>\n
  4. Click \u2018+\u2019 in the Netlist Rover sub-panel from Netlist Panel, i.e. Netlist Editor Window to expand circuit hierarchical tree. See Figure 2.<\/li>\n
  5. Select \u201cMNL\u201d in the tree, then click right mouse button to open pop-up menu. There already is a cell \u201cMNL\u201d in this project, so users can click on \u2018Open\u2019 to see the P-cell with default parameters and corresponding XI-script (displayed in separate window). The cell has two Metal1 pins D and S, and Poly box assigned pin G.<\/li>\n
  6. Select cell \u201cINVX\u201d in the circuit hierarchical tree, and click right mouse button. Select \u2018Open\u2019 in pop-up menu to open existing view \u201cINVX\u201d and inspect its pins. Switch from \u2018Flat View\u2019 into \u2018Lazy View\u2019 via \u2018View\u2021 Cell View\u2021 Lazy\u2019 or from Hierarchy toolbar to see ports in instances MPL (MI0) and MNL (MI1). See Figure 3.<\/li>\n<\/ol>\n<\/div><\/section><\/div>
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