Re: OT 0805 resistor noise

On Wed, 7 Sep 2005 12:31:53 +0200, "SioL" <Sio_spam_L@xxxxxxxx> wrote:

>"Robert Baer" <robertbaer@xxxxxxxxxxxxx> wrote in message news:a_vTe.2077$9x2.1948@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>> If the PCB is run thru a hot air tunnel for reflow both times, there is no residual stress.
>> Case 1: parts so small that no adhesive is needed = the liquid solder's surface tension holds them in place at all times, and
>> the cooling dimensional change is so small that it would seem the stress is more theoretical than a practical "problem".
>> Case 2: larger parts with adhesive = do not move, so zero problem.
>
>Interesting posts, thanks!
>
>I am considering starting a SMT placement business here in the EU. How much does
>a smaller maybe used pick and place cost in the US? Just considering my options for
>a conservative start.


We have a very nice semi-automatic p&p, made in Switzerland! I think
it cost $25,000 or so. I'll look up the model when I get to work. My
guys just did my new VME prototype board on it; it took about 3 hours
to place 1050 parts on a very dense board.

I've seen a Panasonic turret-feeder place 6 parts per second, but
that's a $300,000 or so machine, and setup is a major deal.

John




.

Relevant Pages

  • Re: FA: Pinball Parts and Electronic Components (ICs, Rectifiers, Transistors)
    ... moral here is don't buy a quantity of 4 posts if you can help it. ... your order until the cost justifies the purchase. ... I specify if someone wants cheaper shipping it's at ... I use the flat rate so I'm ...
    (rec.games.pinball)
  • Re: General comment
    ... > I would ask that you do not reply to my posts anymore. ... > area and cannot see it as a cost effective or practical alternative. ... > "Most stereozooms are designed for an observer using both eyes and not for ... >> to the new price of this scope. ...
    (sci.techniques.microscopy)
  • Re: Subtleties
    ... >>> Anyone can look up your posts if they're curious. ... if you don't know that quality products cost more than cheap ... The Ikea chest is made from cheap plywood and ... The Hooker piece OTOH, is made from ...
    (comp.sys.mac.advocacy)
  • Re: question to you all..
    ... unbelievably rough you can be with creationists, ... Posts a la mode, anyone? ... Except for the pun cascades. ... What does it cost? ...
    (talk.origins)
  • Re: tattoo removal help!!!!
    ... What has it cost you so far? ... That eight grand for the blobbier version does NOT sound appealing. ... You're posting via Google groups, ... Your posts of March 25 did ...
    (rec.arts.bodyart)