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Abstract Generator : abstract view with just "M1 net layer" => instead of "M1 drawing" and "M1 pin layers"

samung

Hi !!

I managed to get an Abstract view of my simple inverter cell, from a layout.oa view (up to M1 layer). See attachment.

However, in this Abstract view, i just have one layer : M1 net. Actually I would like to have "M1 drawing" and "M1 pin" layers + the contact "CO layer" to see the pins (vdd/vss/A/Y) in the viewer and the contacts.

In my layout.oa input file, my strategy for the pin definition is:  

one layer or M1 drawing with connectivity vdd

+ layer pin M1 on this layer (Terminal Name : vdd)

+ layer text drawing "vdd" (no connectivity) 

 

I think, I have to do something "Step Extract" at Signal & Power panels but I cannot do what I want. I tried different combination with no sucess.

 

Thanks for any help !!

 

P. 

StdCell_Abstract_Layers_layout_to_LEF.pdf
Parents
  • ColinSutlieff

     If you want a different purpose, click file->general options-> pin purpose name

    Any geometry that is not connected to the pin will be converted to "blockage" objects. No actual mask layers will be generated with purpose "drawing"

    Add CO to the layers in your  LefDefaultRouteSpec

    Having existing geometry with connectivity attached ( I think this is what you mean with " one layer (shape?) on? M1 drawing with connectivity vdd")  may cause problems (unless you want pins generated for all shapes with connectivity attached)

    Try removing the connectivity on the shapes that you don't want to convert to a pin. Then turn off the extractor completely in the "extract" step

     

    Hope this helps

    Colin

Reply
  • ColinSutlieff

     If you want a different purpose, click file->general options-> pin purpose name

    Any geometry that is not connected to the pin will be converted to "blockage" objects. No actual mask layers will be generated with purpose "drawing"

    Add CO to the layers in your  LefDefaultRouteSpec

    Having existing geometry with connectivity attached ( I think this is what you mean with " one layer (shape?) on? M1 drawing with connectivity vdd")  may cause problems (unless you want pins generated for all shapes with connectivity attached)

    Try removing the connectivity on the shapes that you don't want to convert to a pin. Then turn off the extractor completely in the "extract" step

     

    Hope this helps

    Colin

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