Electronics Forum | Sat Jul 13 09:56:45 EDT 2013 | davef
Look here for guidelines http://www.sensata.com/supplier/pdf/CQI-17_Soldering_System_Assessment.pdf Special processes" refer to processes that produce outputs whose output cannot be verified before being released to the customer. These products and
Electronics Forum | Thu Jun 20 10:48:56 EDT 2002 | Hussman69
When you ask for data in terms of rework, do you want reflow solder yields versus wave solder yields? Or do you want repair data from each process, or yield data that shows actual glue defects from screen printing versus solder paste screen printing
Electronics Forum | Thu Jun 20 16:59:57 EDT 2002 | davef
We look at gluing and pasting second side components as two different processes, NOT alternative processes. Given our drothers, we'd paste / place / reflow all day long, before we'd want to glue. We glue because we have to glue. The main driver to
Electronics Forum | Thu Jun 20 19:27:28 EDT 2002 | surinder
Hi Dave, I am agree with you,but one of my customer want to know the difference in terms of rework/Quality,if we go for Glue process in place of solder paste and want to see some data We have board ,which have Through hole components and smt comp. on
Electronics Forum | Fri Jun 21 13:05:58 EDT 2002 | surinder
Hi Stephan, Thanks,Yes there are thieving pads on Ic's .Also the two QFP, which mention,that will be removed by modifying the design in long run ,if the results/Yields are okay as with Glue as Compared to solderpaste process. Yes you are right here,b
Electronics Forum | Thu Nov 10 23:50:34 EST 2005 | pyramus
Hi everybody! I would like to ask some advice which kind of EMI shielding process is easy to use, economical and at the same time efficient. I've been doing research for different kinds of shielding process to be used in our product. Can anybody gi
Electronics Forum | Tue Dec 28 09:36:34 EST 1999 | Dan Woodward
Certainly automatic placement, preferably with vision system assistance will yield a more repeatable process. Process repeatability (paste deposition, connector placement, reflow cycle, etc.) will be your key to success here. Another possibility yo
Electronics Forum | Fri Jun 21 16:41:10 EDT 2002 | pjc
If your wave machine has the new style Rotary Chip Wave and the Hot Air De-Bridging Knife options you can expect good yields. However, depending on the PCB design, double-sided solderpaste reflow and selective solder pallets for wave solder is a bett
Electronics Forum | Fri Mar 22 10:33:58 EDT 2013 | mbrett73
Hello guys, I´m pretty new on pcba process and I´m writing to see if you can help me, we have combo process om pcb for UPS boards and we are facing a lot of shorts after wave the boards. We did few tests with different fluxes different profiles chan
Electronics Forum | Mon Jul 23 18:42:50 EDT 2001 | johnmaetta
We are currently re-thinking our policy of no-clean and would like more information from users of both process'. Our assemblies exhibit residue and other 'contaminates' and this raises questions at our customer sites. Thanks, John
