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crap circuit boards

Discussion in 'Electronic Design' started by Jeff K, Aug 10, 2006.

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  1. Jeff K

    Jeff K Guest

    I have received these awful circuit boards from a vendor that show lots of
    solder mask mis-registration and flaws. We used a bunch of them before we
    found the problem. Now we need to implement some incoming inspection. I am
    working on a checklist of things to check, so far it has 1 item "check
    solder mask registration". What else would I look for?

    Also considering using a lab to do this on a sample basis, does anyone have
    any suggestions where?


  2. PeteS

    PeteS Guest

    In the distant past when I had to do such things myself, I used an IPC
    publication, IPC-A-610

    I am not sure if you have to buy this standard [probably], but it's a
    standard, so if your boards were required to be made to IPC-A-610, then
    you'll have grounds for rejection.


  3. Fred Bloggs

    Fred Bloggs Guest

    Heck yeah you have to buy it, and top dollar too- for the most poorly
    written non-informational crap in print.
  4. PeteS

    PeteS Guest

    I wasn't referring to the apparent quality (or otherwise) of the
    standard, but it _can_ be useful.

    <Understatement>Certainly it could do with some work. </Understatement>

    If the OP is going to outsource the function to a lab they should be
    using a quantified approach anyway.


  5. Rob

    Rob Guest

    If this is the standard I'm thinking of there's a crap low res version you
    can download for free.
  6. Joerg

    Joerg Guest

    Hello Jeff,

    Add via metallization checks to the list. I had some bad surprises there
    lately, something that really was never a problem in the past.

    Oh, and check whether your vendor has recently outsourced some or all
    work. That could become a real problem.
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