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OT: PCB Assembly service in europe

Discussion in 'Electronic Design' started by Sylvain Munaut, Feb 18, 2005.

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  1. Hello,

    I'm looking for a PCB assembly service in europe (and pcb fab if possible,
    if not I can have the pcb made elsewhere). I don't have a complete BOM yet
    but I already know that my board will be max 1 dm square, 6 layers.
    The most complex component is a 256 pins BGA with 1mmpitch and TSOP 66 DDR
    chips. I'd say max 1000 smd pads.

    I need a series of about 15 PCBs but if only the SMDs are soldered it's fine,
    I can do the rest (thru all, big connectors, ...) by hand.

    Any one know where I can have this done and for about which price ?


    Thanks,

    Sylvain
     
  2. Leon Heller

    Leon Heller Guest

    These people (UK) are very good for SMD assembly:

    http://www.active-pcb.com/

    You really need to discuss the board with your assembler before finalising
    the layout - things like fiducials need to be acceptable to them.

    They can just mount the 'dificult' chips for you, it won't be all that
    expensive.

    Leon
     
  3. Joerg

    Joerg Guest

    Hello Sylvain,

    For just 15 boards it can sometimes be less expensive to hire a temp from a local labor pool company. But it should be a technician who is experienced in fine pitch prototype build-up.

    If you are still at Louvain University there may even be an institute that has technicians and could do it for a cross charge fee (or for the promise to throw a nice party...).

    Regards, Joerg
     
  4. Hi Joerg !

    Soldering BGA's by hand ?

    I'm still around but from what I've seen they hire sub-contractors for
    such jobs. They're "in-house" capability for producing/assembling PCBs
    is quite limited (or they're hiding it well ;).

    As for throwing a nice party, a few bottles of "Chimay bleue" certainly
    make wonders around the ELEC departement ;)


    A+,

    Sylvain
     
  5. Hi Leon,

    Thanks, they already were on my list of "to-ask" ;)

    Could you tell me what "fiducials" are ? Google translate isn't of much
    help ...
    Yes that would be nice. I can mount the few thru-all or quite large
    pitch SMD myself. But BGA, finepitch and 0402 caps are trickier ;)

    Any vague idea on the price range ?
    I had a quick quote from a local company that was about 350$
    per board which is quite high in my opinion ... (or am i mistaken ?)



    Sylvain
     
  6. Rich Grise

    Rich Grise Guest

    Target points.
    Also known as "alignment points".
    Also known as "register marks".
    May have other aliases. ;-)
    -------------
    Fiducial \Fi*du"cial\, a. [L. fiducia trust, confidence; akin to
    fides faith. See Faith.]
    1. Having faith or trust; confident; undoubting; firm.
    ``Fiducial reliance on the promises of God.'' --Hammond.

    2. Having the nature of a trust; fiduciary; as, fiducial
    power. --Spelman.

    Fiducial edge (Astron. & Surv.), the straight edge of the
    alidade or ruler along which a straight line is to be
    drawn.

    Fiducial line or point (Math. & Physics.), a line or
    point of reference, as for setting a graduated circle or
    scale used for measurments.
    ------------
    fiducial
    adj 1: relating to or of the nature of a legal trust (i.e. the
    holding of something in trust for another); "a
    fiduciary contract"; "in a fiduciary capacity";
    "fiducial power" [syn: fiduciary]
    2: used as a fixed standard of reference for comparison or
    measurement; "a fiducial point"
    3: based on trust
     
  7. Rich Grise

    Rich Grise Guest

    Well, you use your hands to lay the stencil on the board, and put the
    assembly into the toaster oven... ;-)

    Cheers!
    Rich
     
  8. Alan Turner

    Alan Turner Guest

    Hi,

    You might consider Olimex http://www.olimex.com.

    I've used these folks for PCB manufacture only, but their service was
    excellent. Be sure to use courier shipping - my order stayed in the post a
    lot longer than I would have liked!

    Regards,
    Alan
     
  9. Fred Bartoli

    Fred Bartoli Guest

    Sylvain,

    Just add to what Rich said, a fiducial translates to "une mire" in french.
     
  10. Joerg

    Joerg Guest

    Hello Sylvain,

    Not with a solder iron, of course. But we did quite a few in the lab.
    Some technicians become very proficient with the heat gun or with ovens.

    It's just that it will be tough to convince a regular fab to do a run
    with a mere 15 units.

    I'd ask around to find out which subs can do these job. But for tough
    jobs such as BGA you'd almost have to talk with someone at another
    institute about their results and not just rely on the usual "preferred
    partner" listing.

    For Valentine's day my wife and I treated ourselves to a nice bottle of
    "Diabolique". I think it was more than eight "volts" and the usual smoke
    came out after popping the cork.

    Regards, Joerg
     
  11. Not really. I've had a "regular fab" build as few as three stuffed
    boards at a time. "Regular fabs" like money too. ;-) ...and it
    really wasn't all *that* expensive, as far as prototypes go.
     
  12. Anders F

    Anders F Guest

    I agree. Good service from Tsvetan - always!
    But they still only manufactur dual layer boards in 8/8 - so I seriously
    doubt they'll do BGA work...
    I'd say the same with a "not". Ordinary post always go straight through
    customs here (especially when you point it out - the last few I had were
    with "free sample" (or something) labels. Then I just add the VAT (wonder if
    one would bother trying to file that as a private... ;-) in the books.
    I've used curier sevice once (because I needed the boards FAST)... Never
    again!!! Customs and curier service did their best to keep them from me. I
    could have driven to Bulgaria and back faster by my self!

    Cheers,
    A (Denmark)
     
  13. Thanks to both of you for the translation.


    Sylvain
     
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