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Pads and Nets both red, so I'm a little confused.

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I made a simple PCB that involves surface mounting large components (.15x.076 pads), and noticed that both the pads and net connections are all red in the Board Editor.  I just wanted to make sure that this is ok, and that the pads are actually above the surface for soldering, and the net connections are non-exposed inside the board.  Silly question I know, but just wanted to make sure before paying for the PCB.  (this would be my second pcb, but the last one was like 6 years ago so I'm rusty). 

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    On 04/21/2014 01:10 PM, David Henry wrote:

    I made a simple PCB that involves surface mounting large components

    (.15x.076 pads), and noticed that both the pads and net connections are

    all red in the Board Editor.  I just wanted to make sure that this is

    ok, and that the pads are actually above the surface for soldering, and

    the net connections are non-exposed inside the board.  Silly question I

    know, but just wanted to make sure before paying for the PCB.  (this

    would be my second pcb, but the last one was like 6 years ago so I'm

    rusty). 

     

    David,

     

    Unless you've changed the default colors, red represent copper on the

    top layer (layer 1).  If you mirror the package on the board, the pads

    will turn blue indicating that they're on the bottom copper layer (layer

    16).

     

    You can turn on the tStop layer to see where the solder mask has been

    pulled back from the pad.  This area should be slightly larger than the

    copper pad.  You can also turn on the tCream layer which indicates where

    solder paste should be applied.  It should be slightly smaller than the

    pad itself.

     

    As a verification step, I display the gerber files produced by the CAM

    Processor in a viewer like gerbv.  The source code is available on

    SourceForge as is a binary for Win32.

     

    There are also a handful of associated programs available from gerbv's

    home page at http://gerbv.geda-project.org/ .

     

    HTH,

        - Chuck

     

     

  • 0 in reply to dukepro

    Chuck, I turned on tStop and tCream and all looks well.  I'm surprised those layers aren't on by default.  I'll also try to figure out Gerbv.  Really appreciate it  Thanks.

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