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I am having some issue with IDF file

Raam

I am having some issue with IDF file and details given bellow.

In Footprint at placebound property i am assigning maximum height of the component and also the placebound area i am creating larger size than the actual body size, because this shows the package to package separation error, so in the IDF file obviously component will have approximate (larger) size with correct height which i given and this makes problem in CAD like showing the component hitting with encloser

My requirements:.

Any one of the actual body shape should have the property of max-height, which is going to support IDF file.

Other one of the shape should have the property of package clearance, which supports to show the package to package error.

  • Cadpro2K

     Here's what I do:

    My place-bound area is the maximum component size, with the MAX_HEIGHT property attached (for IDF output)

    I also have a PLACEMENT_BOUNDY layer which shows my placement keep-out region. This is on all my footprints, so when I go into allegro and lay out my board I turn this layer on, and it shows me overlaps (not a DRC function).

    You can also play with the new DFA (design for assembly) DRC functionalities, and see if that fits your needs. I don't use it because I don't have a tremendous amount of parts on my board, and haven't taken the time to set up the 'truth tables'.

    Good day.

  • Raam
    If the boards have plenty of components, DRC function helps me more to save time and for package to package i need to put bigger Place bound or DFA size than the actual component size for better component assemble and solder.So can you tell me how to assign DRC set for the package over lapping (or) is it possible to see the DFA bound top in 3D view instead of place bound?I am waiting for your kind replayThank you.Raam

     

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