2 Replies Latest reply on Sep 5, 2013 6:12 AM by bourgetm

    Pads not showing up in solder mask or paste CAM files?

    bourgetm

      Hello,

       

      I have been having a strange problem with a recent design.  On one surface-mount connector, the pins/pads are not showing up in either the solder mask or paste gerber files.  They appear in the other CAM files where they should - just not these.  The padstacks appear to be set up correctly, but I must be missing something!  Anyone have any ideas?

       

      Thanks,

       

      -Mike

        • 1. Re: Pads not showing up in solder mask or paste CAM files?
          jduquette

          By default, PADS copies the pad from the top layer or bottom layer to the top solder paste and bottom solder paste layers, respectively.  I believe it does the same on the solder mask layers after applying an oversize parameter that you can set.  This lets PADS work with partially defined decals so it is a really handy feature for the newbies.

           

          Once you have the SM and paste layers defined in the padstack, make sure those items are getting called out in the Gerber/CAM setup.  If there is something defined for that layer then PADS won't take the shape from the copper layer and use it as a default, so if you don't define exactly what needs to go in the CAM definition you'll get nothing.

           

          That's probably as clear as mud but it is really odd to describe.  You'll have to play around with your CAM setup.  

          • 2. Re: Pads not showing up in solder mask or paste CAM files?
            bourgetm

            Thanks - it appears that the CAM document definitions for the solder mask and paste mask were somehow corrupted.  I deleted those files and then added new ones (with the exact same configurations), and they worked just fine!

             

            Thanks again,

             

            -Mike