Electronics Forum | Mon Mar 07 09:14:04 EST 2005 | Rob
Hi does anyone have any experience of running Sn 99 Cu0.7 Ag 0.3 solder in their waves? Also is there any reliabilty data available? I think it may also be called C7A3. All I can find is a brief mention in a table in IEC 61190-1-3 2004, and on a pr
Electronics Forum | Tue Mar 08 09:56:05 EST 2005 | caldon
Tim- You have two separate issues 1) Stencils and 2) wave. Stencils you can purchase a ultrasonic system that will remove the paste automatically or you can use stencil wipes to remove it manually. I would refrain from using towels and IPA as it dilu
Electronics Forum | Wed Mar 09 08:23:31 EST 2005 | davef
We don't have experience on this, but first we'd talk to a technical type at our solder paste supplier. Baring that, we'd: * Soak a paper towel in a 'solvent' [ie Kyzen XJN, EnviroSense Enviro Gold, Petroferm Hydrex, etc]. * Place the towel in conta
Electronics Forum | Thu Mar 10 14:50:56 EST 2005 | russ
Rob, Fantastic! I sure wish we would have put our requirements into our last P.O. The G.M of the manufacturer of this machine flat out promised and guranteed a certain CPH after reviewing the products that we would be producing. When the machine w
Electronics Forum | Thu Mar 10 23:26:46 EST 2005 | timekey
Of course a new machine out of the box should perform at a realistic Sigma level and it's not unfair to hold a machine manufacturer true to their claims. However, even if a new machine does meet the criteria on day 1, the numbers will be constantly c
Electronics Forum | Mon Mar 14 11:41:39 EST 2005 | pjc
This company can come in to your facility with equipment to measure the pick-&-place machine's accuracy and repeatability of placements in X-Y-Theta: in North America, http://americas.cetaq.com/index.php?lang=en in Europe, http://www.cetaq.com/
Electronics Forum | Wed Mar 16 22:45:29 EST 2005 | MG Cyr
Thanks for the positive feedback. In addition our standard manufacturing validation, all of our Platform SM products (GSM, Advantis, Genesis etc.)include "on-board" CPK validation and "self calibration". In addition we do have a global relationship w
Electronics Forum | Thu Mar 10 09:13:15 EST 2005 | davef
From http://www.IPC.org ... IPC-7351 - Generic Requirements for Surface Mount Land Pattern and Design Standard The successor to the IPC-SM-782A is here! The document covers land pattern design for all types of passive and active components, includ
Electronics Forum | Thu Mar 10 23:23:56 EST 2005 | pmd
We have a MyData TP-9-2 with a in line Y wagon. It is a long screw and the vintage is 1994. The Y wagon vibrates at about 24 micrometers at about 25 hertz. Burnin reviels zero encoder pulse errors. Hystersis test indicates a Y axis Y wise varance of
Electronics Forum | Sun Mar 13 23:30:59 EST 2005 | VS
After reflow AOI makes sense because it has the highest coverage of the defects. Problems like tombstone, lifted pins, open solder joints, some shorts and insufficient solder you will not find before oven. I would also not agree with the statement th
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