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addFiller does not completely fill free area

kasyab

 Hi,

    I am seeing some strange behaviour with addFiller. It adds fillers on every alternate row and even then not everywhere. checkFiller duly reports gaps, but I am unable to change this behaviour inspite of turning on the -fitGap switch and trying '-util 1' with addFiller . I have checked that:

a) The list of filler cells is complete and ordered wider to narrower.

b) setFillerMode is not configured with anything wrong.

 

verifyGeometry, verifyConnectivity and verifyProcessAntenna all pass in Encounter, but I get errors related to p/n well continuity with the signoff DRC ruleset in Calibre.

 The version of encounter I am using is Encounter v09.10-p004_1.

 Any help is appreciated.

 Kasyab

Parents

  •  Hi Kari,

       Thanks a lot foryour inputs.

      I looked at your last reply and checked my conf file again. I found two LEF files defining the filler cells; the first without the SITE definitions and the one following that with SITE definitions (with antenna rules). Since the one without the site definition was getting read first, the second one was being ignored. I updated the confile with the correctLEF and things happened as they should.

     I've generated a new GDS and have DRC running. Fingers crossed this time :-).

    Thanks again,

    Kasyab

Reply

  •  Hi Kari,

       Thanks a lot foryour inputs.

      I looked at your last reply and checked my conf file again. I found two LEF files defining the filler cells; the first without the SITE definitions and the one following that with SITE definitions (with antenna rules). Since the one without the site definition was getting read first, the second one was being ignored. I updated the confile with the correctLEF and things happened as they should.

     I've generated a new GDS and have DRC running. Fingers crossed this time :-).

    Thanks again,

    Kasyab

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