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Tapcell

Tapcell and endcap insertion.

Commands

tapcell [-tapcell_master tapcell_master]
        [-endcap_master endcap_master]
        [-distance dist]
        [-halo_width_x halo_x]
        [-halo_width_y halo_y]
        [-tap_nwin2_master tap_nwin2_master]
        [-tap_nwin3_master tap_nwin3_master]
        [-tap_nwout2_master tap_nwout2_master]
        [-tap_nwout3_master tap_nwout3_master]
        [-tap_nwintie_master tap_nwintie_master]
        [-tap_nwouttie_master tap_nwouttie_master]
        [-cnrcap_nwin_master cnrcap_nwin_master]
        [-cnrcap_nwout_master cnrcap_nwout_master]
        [-incnrcap_nwin_master incnrcap_nwin_master]
        [-incnrcap_nwout_master incnrcap_nwout_master]
        [-tap_prefix tap_prefix]
        [-endcap_prefix endcap_prefix]
  • -tapcell_master. Specify the master used as a tapcell.
  • -endcap_master. Specify the master used as an endcap.
  • -distance. Specify the distance (in microns) between each tapcell in the checkerboard.
  • -halo_width_x. Specify the horizontal halo size (in microns) around macros during cut rows.
  • -halo_width_y. Specify the vertical halo size (in microns) around macros during cut rows.
  • -tap_nwintie_master. Specify the master cell placed at the top and bottom of macros and the core area according the row orientation.
  • -tap_nwin2_master. Specify the master cell placed at the top and bottom of macros and the core area according the row orientation. This master should be smaller than tap_nwintie_master.
  • -tap_nwin3_master. Specify the master cell placed at the top and bottom of macros and the core area according the row orientation. This master should be smaller than tap_nwin2_master.
  • -tap_nwouttie_master. Specify the master cell placed at the top and bottom of macros and the core area according the row orientation.
  • -tap_nwout2_master. Specify the master cell placed at the top and bottom of macros and the core area according the row orientation. This master should be smaller than tap_nwouttie_master.
  • -tap_nwout3_master. Specify the master cell placed at the top and bottom of macros and the core area according the row orientation. This master should be smaller than tap_nwout2_master.
  • -incnrcap_nwin_master. Specify the master cell placed at the corners of macros, according the row orientation.
  • -incnrcap_nwout_master. Specify the master cell placed at the corners of macros, according the row orientation.
  • -cnrcap_nwin_master. Specify the macro cell placed at the corners the core area according the row orientation.
  • -cnrcap_nwout_master. Specify the macro cell placed at the corners the core area according the row orientation.
  • -tap_prefix. Specify the name prefix for the tapcell instances. The default prefix is TAP_.
  • -endcap_prefix. Specify the name prefix for the endcaps instances. The default prefix is PHY_.

The figures below show two examples of tapcell insertion. When only the -tapcell_master and -endcap_master masters are given, the tapcell placement is similar to Figure 1. When the remaining masters are give, the tapcell placement is similar to Figure 2.
Figure 1: Tapcell insertion representation Figure 2: Tapcell insertion around macro representation

Example scripts

You can find script examples for both 45nm and 14nm in tap/etc/scripts

Limitations

FAQs

Check out GitHub discussion about this tool.

License

BSD 3-Clause License. See LICENSE file.