Electronics Forum | Wed Jan 12 20:18:14 EST 2011 | Jacki
How many % were affected? If a few,it can be caused bcoz of PCB coating. We had encountered it and PCB house replaced for faulty boards. Since then, we do test first if we hve to solder PCBs from this PCB house.
Electronics Forum | Thu Jan 20 08:22:14 EST 2011 | padawanlinuxero
http://www.flickr.com/photos/94427924@N00/5372753378/sizes/m/in/photostream/
Electronics Forum | Fri Jan 21 11:00:56 EST 2011 | xps
Hi, in my experience, the humidity is trapped in the solder paste. Otherwise you can also try to : adjust preheat profile, and /or increase paste viscosity, and /or increase paste metal content (they are the most common causes).
Electronics Forum | Fri Jan 21 13:27:38 EST 2011 | mosborne1
Try baking your boards first to remove the moisture. Moisture and boards that have not been drilled properly will cause pin hole or blow holes in PTH. Also take a look the surface of the pads before printing. You maybe contaminating the surfaces of t
Electronics Forum | Sun Jan 23 17:26:48 EST 2011 | piter
Hi In my experience try to change component to another batch or anther manufacturer it is very often problem in reflow when components have strange finish
Electronics Forum | Thu Jan 13 15:06:43 EST 2011 | babe7362000
I read older threads and tried the Maintenance Assistant 3., but did not have very good luck. Just wondering what others are using and would love your input. Thanks
Electronics Forum | Thu Jan 13 16:04:28 EST 2011 | swag
We bought "Manager Plus" and really like it. Works great for maintenance + we track all our tooling and calibration with it.
Electronics Forum | Wed Feb 09 15:16:53 EST 2011 | circleprime
I've been using PMXpert for several years now. Really easy to use.
Electronics Forum | Fri Jan 14 05:49:03 EST 2011 | marusha
isopropyl alcohol and a toothbrush! =)) seriously. If you do not have a washing machine - no problem. Incidentally, both military and medical equipment are always clean no clean paste - This process greatly improves reliability.
Electronics Forum | Fri Jan 14 14:16:12 EST 2011 | jdumont
Contact Zestron. We have cleaned many different solder pastes, including 256, over the years using Zestrons products. They will steer you in the right direction using the equipment you have. N.Ravindran@zestronusa.com
