Electronics Forum | Thu Jul 07 07:09:16 EDT 2016 | soldertools
BEST is an IPC Master Certification Solder Training Center offering Instructor and Operator courses for IPC-A-610, IPC J-STD-001, IPC/WHMA-620, IPC-A-600, IPC-6012 and IPC 7711/7721. BEST is also known world widely for PCB repair kits and materials t
Electronics Forum | Thu Aug 10 14:52:08 EDT 2006 | russ
Should be some numbers on the top of the other two. If you can read them we can get you the right part info. it also looks as though you have some trace and pad damage that will require repair prior to you putting down new part. Or you can remove
Electronics Forum | Tue Jul 18 18:53:23 EDT 2006 | Mike F
Is it showing up after wave or reflow soldering, or after hand soldering? If the delamination or blister bridges between traces you have the potential for a short circuit between those traces. A delamination might be repairable, but in most cases i
Electronics Forum | Thu Mar 15 12:22:13 EDT 2007 | Steve
Hi All! There were a few rigid flex assemblies brought to me this morning with some scratches in the coverlay of the flex. They are pretty minor, but they do go down into some traces a bit. I don't think the traces are really signal traces, but are
Electronics Forum | Wed Jan 06 09:38:59 EST 2010 | lynn_norman
Via failure could be caused by cracks in the barrel, or thin plating, or fractures in the traces leading to the vias, . X-ray analysis could pick up a fractured trace and cross-sectioning of the vias could pick up the cracks and thin plating. Secon
Electronics Forum | Wed Oct 20 19:36:45 EDT 1999 | Dennis O'Donnell
Hi Mark: Running a wire under a BGA is possible, however if you plan to mount the BGA over the wire you would want to make sure that the wire insulation will withstand the heat of the reflow temperature. A more reliable way would be to lay a trace
Electronics Forum | Fri Mar 15 15:11:08 EST 2002 | clarkk
Check out http://www.circuittechctr.com/index.htm They have kits and training for making pcb mods. And no, I don't work for them. But they have saved my butt once or twice with handy repairs for damaged pcb's. Good luck!
Electronics Forum | Fri Nov 28 10:00:52 EST 2003 | Tom B
John, I typically specify no more than three repairs per PWB or assembly. Using the IPC 700/7711/7721 and Circuit Tech's Guidlines for reference. If PWB cost is only couple of $$ then repair may not be worth it (you do not want to make repair, the
Electronics Forum | Sun Nov 30 08:53:15 EST 2003 | davef
IPC-6012A finds "circuit repairs" as acceptable in Class 1, 2, and 3 only "As agreed by user and supplier." So, it is your call, basically. Generally these repairs, if done properly, are reliable. See IPC-7721, 5.2.3, for conductor repair by welding
Electronics Forum | Wed Oct 29 23:40:29 EST 2003 | ppcbs
We here at Precision PCB Services, Inc. Perform selective ball removal. We just completed a job today where we removed 4 balls, and then installed traces to dog-bone the pads at two locations on 30 BGA's. An eaisier and more cost effective solutio
