9 Replies Latest reply on Feb 20, 2014 4:59 PM by ahmed_me2

    LVS problem with abstract views (black box)

    Sebastien

      Hi,

       

      I have a problem with calibre LVS on a layout that uses abstract views. The layout extraction doesn't see the IN/OUT pins of the abstract views (i use the option LVS BOX cellName) .

      The abstract view is just a metal1 design (no component) with I/O pins. I created these abstract views from a lef file.

      For example, I get this following error message :

      INV was treated as an LVS Box

       

      **************************************************************************************************************

                        COMPONENT TYPES WITH NON-IDENTICAL SIGNAL PINS

      **************************************************************************************************************

       

      (Cells with the same ( or corresponding ) name that have different signal

      pin names are listed below.  Pins that do not appear in all corresponding

      cells in both source and layout are ignored by the comparison algorithm.)

       

      Layout Component Type:  INV (0 pins)

      No Extra Pins.

       

      Source Component Type:  INV (2 pins): a z

      Source Extra Pins:      a z

       

      Is there an option in calibre to identify the pins of an abstract view (keep pins on floating net) or do you know a method to match an empty layout (only metal design with I/O pins) with a shematic view ?

      I would like to verify the cell connections and not the content of cells

       

      Best regards,

      Sébastien