All went well with the bare PCBs.  The laser tech was able to program the
pattern and dial in settings for power and speed that yielded acceptable (at
least visually) results.  But, I have to PCBs that are partially assembled
with components that I also need to have laser removal of soldermask.  I can
overcome the fixturing concerns, but does anyone know if I should be
concerned about ESD while the part is being processed?  Is the CO2 laser a
source of static?

Thanks,


Kevin Glidden
Manufacturing Engineer
Luminescent Systems Inc.





  _____

From: Kevin Glidden [mailto:[log in to unmask]]
Sent: Monday, May 08, 2006 10:09 AM
To: 'TechNet E-Mail Forum'
Subject: Laser Ablation of Soldermask



Hi all,
We have lasers available to us in house, used for other processes, but I am
wanting to use these lasers for laser ablation of solder mask on our PCBs.
I am new to the laser process and operation, but have experienced
technicians to rely upon.  Any general or specific advice in terms of
intensities, speed, or other factors?
Thanks,
Kevin

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