Electronics Forum | Mon Mar 12 03:41:25 EDT 2007 | tanemmirt
i designed a new product; i want to produce it in china, so they requested the ICT to be done; i have 03 questions if some one can help me on: 1� is it mondatory to test all components and paths in the PCBA; and check all soldering joints? 2� testing
Electronics Forum | Fri Mar 16 08:42:25 EDT 2007 | AR
Of course, if the number of required component codes ( = feeders) is not very great, you might want to look into odd-form assembly machines. With them you can insert a much greater range of components than just simple radial components and you can ge
Electronics Forum | Tue Mar 13 09:09:23 EDT 2007 | cyber_wolf
We have been asked to provide the OEE on our SMT lines. Any examples of OEE reports that I have looked seem to be from OEM or high volume production lines. Our SMT area is high mix - high changeover. We also run prototypes and start-ups through the
Electronics Forum | Wed Mar 14 01:51:55 EDT 2007 | CHITRA K
We would like to buy a good microscope for visual inspection of SMT PCBs especialy for highly populated PCBs assembled with fine pitch components including BGAs . Please advise a suitable type of equipment visula inspection for volume production. A
Electronics Forum | Tue Mar 20 05:26:32 EDT 2007 | CL
Hi Chrissie, BGA Rework from one CM's view: 10% process problem (printing, reflow, voids, etc) 10% component failure (no other problem found) 80% "The board does not work therefore it must be the BGA" This, of course, is exaggerated. My point bein
Electronics Forum | Tue Mar 20 21:49:38 EDT 2007 | davef
Mark there is no need to YELL here. Turn it down, please. While you're waiting for other to reply, search the fine SMTnet Archives to find threads like: http://www.smtnet.com/forums/Index.cfm?CFApp=1&Message_ID=34512 You'll find that the followi
Electronics Forum | Tue Mar 27 07:34:57 EDT 2007 | ck_the_flip
Amy, One way you can drastically lower the peak temperature of your QFP and prevent it from re-melting is to lower the solder pot temperature. If you're running 63/37 in your pot, the typical range for these is 460�F to around 500�F. You will need
Electronics Forum | Fri Mar 30 06:58:24 EDT 2007 | ck_the_flip
Alot of QM's and QE's are typically failed Engineers who lack common sense. They don't understand that measuring in DPMO's (versus DPU's) "normalizes" your data for Printed Circuit Board Assemblies (PCBA's) so that if you have 10 defects on a PCBA t
Electronics Forum | Thu Apr 05 08:59:43 EDT 2007 | rgduval
Dave, I've seen some instances of solder as you mentioned "painted" over the joint. Almost looks like a seam between the added solder and the originally waved on solder. Typically, I've seen that in the past from an incomplete solder joint. One w
Electronics Forum | Fri Apr 13 12:24:07 EDT 2007 | teamcanada
We assemble for a customer that is having an inconsistent low level analog interference we believe with the no clean flux residue from Alphas OM5100 solder paste. We are considering testing Amtechs 4300 water washable no clean paste. We will test bot
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