Re: robot for circuit boards

[Mitch Newcomer <mitch@hep.upenn.edu>]

Hall D Electronics:

I'm not sure we have a need for a robotic stuffer just yet.   I'll leave 
those details to  Fernando.
  We do depend on a robot from time to time.  Godwin Mayers uses one to 
apply solder paste for surface mount components on dense boards that we 
build prototype quantities of (few to tens).   For production boards 
we've found its best to use a commercial vendor. The good ones can blast 
our measly hundreds of boards in a few days. They have established 
procedures to avoid problems and have diagnostics if a  problem is 
picked up.   We have gone through some pretty difficult problems having 
to do assembly of packaged ASICS.   We learned that our chips ASDBLR 
chips needed to be baked out before assembly to prevent delamination.  
Also a DESY group ran into problems with ASD quad  flat packs when the 
heating profile of one of their assemblers caused the chips to spend a 
long time at soldering temperatures.  The process was sped up and the 
problem went away.      -- Mitch

Alex Dzierba wrote:
> Hello again
>
> I believe the $10K figure came from BeamWorks - Paul has
> been the one communicating with them.  Paul can confirm
> this.
>
> I can independently contact Brad to explore what possibilities
> are available, if any, for JLab to have some reimbursement if
> the machine stays here.
>
> Cheers
> Alex
>
>
> At 12:43 PM -0400 9/8/07, Elke-Caroline Aschenauer wrote:
>> Hall D Electronics:
>>
>> On Sat, 8 Sep 2007, Alex Dzierba wrote:
>>
>> Dear Alex,
>>
>> thanks for the quick answer, what about doing the following let me
>> find out what we need to do the transfer from the JLab side and Jlab 
>> wants to
>> get this 10k$. Of course this can be independent to find out DOE
>> university funds could be used for such a transfer. One more question
>> sorry, how have the 10k$ remaining value have been determined.
>> I keep all informed what I find out from the Jlab side.
>>
>> bye elke
>>
>> p.s. thanks for the nice wishes
>>
>
>