The PDR LightMaster does not use nozzles. We have used it here with good
success. There might be some issues with very small parts that are not
black, as the system measures the temperture or the part with a
pyrometer. We have reflowed larger metal BGA with a black tape that PDR
provides. But, I have not tried real small parts.
The vision system and placement accuracy is good enough for 0.5 mm.

> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]] On Behalf Of d. terstegge
> Sent: Wednesday, February 26, 2003 11:31 AM
> To: [log in to unmask]
> Subject: [TN] BGA rework equipment
>
>
> Hi Technet,
>
> We're planning to replace our current BGA repair equipment by
> something that's more suitable for fine-pitch BGA's and
> microBGA's (ballpitches down to 0.5 mm). We can get a
> brandnew Airvac DRS24 (or Zevac, as it's called in Europe)
> for half the price, but then we need to decide about it very
> soon, without having the time to do a good evaluation. Time
> to seek some expert's advice.....
>
> A significant part of our production work is subcontracting,
> and new customer-relations often start with doing some
> BGA-repairs for them. It's always urgent (no time to order a
> nozzle), there's never a sample board to adjust the profile,
> and normally there's hardly any free area around the BGA. We
> see everything from fine-pitch BGA's to CBGA's, 40*40 mm
> heatsinked-BGA's and BGA-sockets, on boardthicknesses up to 5 mm.
> >From what I heard the Airvac is certainly one of the very best
> rework-machines on the market, but I'm not sure if it is the
> best choice (i.e. flexible enough) for our situation.
>
> Any recommendations ?
>
> Daan Terstegge
> Thales Communications
> Unclassified mail
> Personal Website: http://www.smtinfo.net
>
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