{"id":36587,"date":"2004-06-01T00:07:26","date_gmt":"2004-06-01T00:07:26","guid":{"rendered":"https:\/\/silvaco.com\/%e6%9c%aa%e5%88%86%e7%b1%bb\/parasitic-capacitance-extraction-with-hipex-and-exact\/"},"modified":"2021-10-13T10:36:48","modified_gmt":"2021-10-13T17:36:48","slug":"parasitic-capacitance-extraction-with-hipex-and-exact","status":"publish","type":"post","link":"https:\/\/silvaco.com\/zh-hans\/simulation-standard-zh-hans\/parasitic-capacitance-extraction-with-hipex-and-exact\/","title":{"rendered":"Parasitic Capacitance Extraction with Hipex and Exact"},"content":{"rendered":"
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Parasitic Capacitance Extraction with Hipex and Exact<\/h1>\n

Overview<\/strong><\/p>\n

To extract parasitic capacitances from a circuit layout, you need to perform the following steps:<\/p>\n

    \n
  1. Define the technology process and material data. This includes vertical order of mask layers and dielectrics, their thicknesses, conductivity, and permittivity constants.<\/li>\n
  2. Use the technology data as input to a 2D or 3D field solver to obtain capacitance coefficients.<\/li>\n
  3. Generate a rule file for a full-chip capacitance extractor using the obtained capacitance coefficients.<\/li>\n
  4. Run the capacitance extractor using the generated rule file.<\/li>\n<\/ol>\n

    Silvaco provides tools for performing all the steps above. You can use\u00a0EXACT<\/em><\/strong>\u00a0for steps from 1 to 3 and\u00a0HIPEX-C<\/em><\/strong>\u00a0for step 4.<\/p>\n

    EXACT<\/strong><\/em>\u00a0is a 3D field solver powered by a 3D process simulator to accurately represent the cross-sections in the physical chip, rather than using square cross-sections. This maximizes the accuracy of the capacitance coefficients because the calculated capacitance is derived from realistic cross-sections and 3D shapes. See [1] for more information.<\/p>\n

    HIPEX-C<\/strong><\/em>\u00a0is a full-chip parasitic capacitance extractor. It is a part of the\u00a0HIPEX<\/em><\/strong>\u00a0full-chip extractor, which also includes the layout netlist extractor,\u00a0HIPEX-NET<\/em><\/strong>, and the parasitic RC extractor,\u00a0HIPEX-RC<\/em><\/strong>.\u00a0HIPEX-C<\/em><\/strong>\u00a0works with a stripe database produced by\u00a0HIPEX-NET<\/em><\/strong>. This database divides the original layout into stripes making parallel processing possible. The stripes also make it easier to process huge layouts on a single host machine, one stripe at a time.\u00a0HIPEX-C<\/em><\/strong>\u00a0is a fast 2D extractor. It uses third-party coefficients to derive capacitance from the extracted parameters of parasitic area, length, and distance. See [2\u20133] for more information.<\/p>\n<\/div><\/section><\/div>

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