Electronics Forum | Wed Sep 21 17:53:19 EDT 2011 | action_101
I would like some input on reworking BGA's and the best method. I have reworked BGA's since 1998 using both micro stencils and just flux dipping the parts. I have reworked SN/PB and lead-free (AIM NC258) BGA's for the last 8 yrs. with just flux. I ha
Electronics Forum | Thu Nov 03 16:47:52 EDT 2011 | hegemon
You need to define what it is you are inspecting for, and more importantly, what benefits you are trying to achieve with your acquisition of the technology? Inspecting post placement, post reflow, or both? Solder Joints? Through Holes? Part numbers
Electronics Forum | Tue Feb 21 16:38:18 EST 2012 | comatose
We finally can't avoid adding wave solder to our process anymore. For lead-free, medium sized wave I'm leaning towards mid 2000s senju units as the best fit. I've never run their equipment. Opinions? As a point of reference for our general capabilit
Electronics Forum | Thu Mar 29 07:37:45 EDT 2012 | davef
The current discussion about solder fountains has to do with copper dissolution. Broadly, copper dissolution is the weakening of copper traces where a trace and a barrel plating intersect due a loss of the copper into the solder. Longer contact time
Electronics Forum | Mon Apr 09 19:50:33 EDT 2012 | action_101
Hello, We're building some boards with 01005's and the only issue we are running into is the solder is not reflowing. It's the damnest thing, we are having no issues with the printing process or placing the components, the two areas we thought we wo
Electronics Forum | Thu Apr 19 20:14:09 EDT 2012 | eadthem
I don't, My desk causally is piled with papers, programming printouts, PCB's with defects to be resolved, and spare/broken parts from the SMT machines. For me its more important to help the SMT department and SMT Inspection department get better or
Electronics Forum | Wed May 09 09:54:01 EDT 2012 | swag
We build all our stuff in "kits" as you describe. We don't have much trouble running short on parts at the end although most of our equip. is new which helps a lot. We also have feeders that can run in reverse on set-up stations and we reload parts
Electronics Forum | Wed May 16 12:53:26 EDT 2012 | deanm
CS-400C: As with anything, once you are up on the learning curve its really not that bad. The "E" machines should be easier due to the touchscreen and the floppies are PC compatible unlike the "C" and "D". There are third party software providers tha
Electronics Forum | Mon Jun 04 23:52:57 EDT 2012 | rway
Actually, if you experience lack of witness marks, you probably have a problem. Witness marks are OK and will not affect your assembly. I assume this is an SMT assembly we are talking about, in which case, this is what your test pads are for. You
Electronics Forum | Sun Jul 01 10:29:46 EDT 2012 | anton99
Thanks dyoungquist and tech 1, Things have been crazy lately installing Mylabel and keeping up with customer demand. I have been looking into buying more reels for the high runners (caps, resistors, IC’s that we use a lot) and I think we have a shot
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