Electronics Forum | Tue Oct 09 07:55:50 EDT 2007 | AR
What are the opinions of the Assembl�on ITF Smart Feeder users out there? How is it about the mechanical endurance and relialibility of these feeders? Any particular issues with these electronic feeders? Any particular width that is more troublesome
Electronics Forum | Fri Oct 19 17:09:56 EDT 2007 | hegemon
We have both DRS24 and DRS25 Lead Free rework is done for the most part on the DRS25, although the DRS24 can handle some of our smaller pbFree assemblies. We bought the DRS25 machine new, it was not an upgrade. The machine is very successful at pb
Electronics Forum | Fri Oct 19 13:57:17 EDT 2007 | Michael Konrad
Hi Rob, I must take issue with your statement �By definition, no clean solder can be not-cleaned�. All no-clean fluxes can be cleaned. Whether or not one cleans no-clean depends on a variety of factors. More than eighty percent of all post reflow
Electronics Forum | Thu Nov 08 13:12:02 EST 2007 | russ
Annular rings are too big, it is acceptable to have shorts on the common conductors. I would be willing to say the "other" supplier may have modified the artwork as well. Good fluxing, preheat and proper immersion depth are key to eliminating short
Electronics Forum | Tue Nov 06 16:20:52 EST 2007 | jmelson
Mostly, you don't want to do that. Whoever designed the PCB should be able to produce a "pick and place report" or similar file that lists components by designator (R123) component value/type (100 Ohm 0805) and XY and rotation. If there's absolutel
Electronics Forum | Fri Nov 09 00:40:59 EST 2007 | cadcopac
We design and assemble PCB's and use a min of .015 thou over the component lead diameter without incident but if your component pad is in a copper mass either top or bottom this can create other problems especially if you don't have top heating as th
Electronics Forum | Mon Nov 12 16:55:39 EST 2007 | sueph
A supervisor here is concerned that if we quit using thinner to use alcohol and subsequently had soderability problems on a assembly, the customer could come back and say that it was due to the switch. I visited with someone in tech support at Kester
Electronics Forum | Wed Nov 21 16:56:46 EST 2007 | pms
Thanks folks, Yes, we do not have enough info yet to make decisions at this point. Just trying to get a feel what folks would do in this case. Enig,Black-Pad-Nickle skips....Always concerned about ENIG. Silver finish? Is this better? DaveF, Thank
Electronics Forum | Fri Nov 23 14:55:11 EST 2007 | aj
A couple of points - 1.I would recommend that you get your solder paste supplier involved as this could be their issue , let them do some research into proving that its not ! 2.Is the problem happening on this product only or do you see it on other
Electronics Forum | Tue Dec 04 14:26:56 EST 2007 | ratsalad
We use the same oven for both Pb and Pb-free assemblies. We have been for about two years. We have not seen any issues with contamination. I can't imagine how any Pb would end up in a Pb-free joint in the reflow oven. The Pb doesn't vaporize, the
