Electronics Forum | Mon Sep 11 20:33:25 EDT 2000 | Dave F
What does a section of the through hole look like? Is you fab using a dull drill and plating over the fibers? Good luck
Electronics Forum | Mon Aug 28 10:26:56 EDT 2000 | Travis Slaughter
Being its sudden and only 1 product I would suspect the PCB particularly the barrels in the plated through holes being contaminated.
Electronics Forum | Mon Jun 05 14:17:18 EDT 2000 | C.K.
Dream: Yes, VIA's are connected to actual SMD pads via traces - roughly .030" from the pad. The VIA is .013" in diameter, and the excess solder bleeds out of the actual VIA barrel after the 1st reflow.... -CK
Electronics Forum | Fri May 05 14:44:35 EDT 2000 | Kal Chakraborty.
Hi Ashok, Is there any rework process on those assembl./PWB ..if yes --what kind of tools are your operators using now ...brush? spudger? cloths (is it lint free?) ect. I hope you are not talking about nodules in the hole barrel. Regards Kc.
Electronics Forum | Tue Jun 02 08:19:50 EDT 1998 | Zanolli
Is anyone familiar with assembly procedures for the AMP� straddle mount Mictor connector? If so are there any suggestions to solve difficulty in slitting through the ground pin PTH barrels� and applying paste as reccommended?
Electronics Forum | Mon Dec 02 18:01:12 EST 2002 | GSW
Hi, Try to check if there is water absorbed in the flux or the humidity around the wave area. possibly plating on barrels that might be damaged?
Electronics Forum | Fri Sep 19 12:58:26 EDT 2003 | russ
You most likely have a raw fab problem, These PCBs need to be baked. We have this same thing now and then (only from one supplier) and baking has helped. I hope this is what your problem is. Russ
Electronics Forum | Fri Sep 19 13:55:05 EDT 2003 | joeherz
Russ, I feel a little better now.... Baking specs...... Can you give me a tip on where to look? It's a 4 layer, .062 and roughly 5 inches square. Thanks.
Electronics Forum | Thu Jun 30 12:20:50 EDT 2005 | sumote
Its been my experience that a "dot" of glue on the center of the part is needed for "barrel" type components.
Electronics Forum | Thu Nov 17 13:13:49 EST 2005 | Mike
Hello, Some questions.... Are you running lead free? What alloy? What�s your pot temp at? Temp of the board after preheat? Are you getting any solder in the barrels (