Electronics Forum | Mon Jun 27 09:09:19 EDT 2005 | Bob R.
We've all been soldering Pb free parts for a couple decades. All your surface mount capacitors have probably had a Sn finish for years. Whenever one of our parts with a SnPb finish converts for Pb free we have the manufacturing site do a small buil
Electronics Forum | Wed Dec 21 08:31:13 EST 2005 | DannyJ
Hi AJ, First, I am not intimately familiar with your wave, but I will share some experiences I have had with other products. First, I would check to make sure that all of your heaters are working. Simply go to the electrical connections, remove p
Electronics Forum | Fri Feb 24 13:04:17 EST 2006 | patrickbruneel
Hi All, The change over to lead-free is as easy or as difficult as you want to make it The big problem I see with this lead-free transition is that there is no benchmark of acceptability and no defect data (yet) related to visual appearance of a sol
Electronics Forum | Thu Jun 29 13:27:20 EDT 2006 | pjc
Verify that the CEMs machines and processes are capable of assembling the technology of your boards- smallest components, largest components, finest pitch, flex circuits, etc� Are their core competences aligned with your requirements- assembly only,
Electronics Forum | Tue Mar 06 15:59:33 EST 2007 | pima
hello I would like to ask you for advise. I have problem with one of my SMT line and skewed parts at the end of line after reflow. My line is composed: DEK, 3d visual inspection of paste printing, IP3, 8 zones reflow oven. I m builidng there produc
Electronics Forum | Thu Jul 05 14:00:21 EDT 2007 | wayne123
we have recently been having trouble with our PPS capacitors on a couple of our boards. these boards are RoHs and the Parts are RoHs compliant. these boards first run through our reflow then a batch washer some through-hole parts are placed and then
Electronics Forum | Sat Oct 18 08:17:40 EDT 2008 | hussman
Use a Cpk study on your screen printer. Deviation from print to print. Most reutable surface mount machine companies will supply you with their Cpp study they performed on your machine before they shipped it. On ovens use your profiler. You can
Electronics Forum | Wed Jan 07 00:18:14 EST 2009 | milanrit
Recently on one of my assemblies(sn/pb) I started seeing leaded BGA failure at functinal test for opens, but when I inspected them through 5DX and ERSA Scope it doesnt seem like there is any opens or insufficient and half no. of boards passed functio
Electronics Forum | Mon Sep 27 15:57:21 EDT 2010 | mikesewell
I've owned two PDR Lightmaster IR rework stations (bought at 2 diff. companies) and have been extremely happy with them. Closed loop,separate control of top and bottom heater via non contact thermocouples. Control the process, not the product - set
Electronics Forum | Mon Jan 17 14:24:21 EST 2011 | vmorina
Hi Hege, Thank you very much for your input. So far I have four hot air from four different companies. ERSA: IR500 or IR550 http://www.ersa.com/index.php?modul=entry&id=346&entry_id=1473⊂_id=346&cont_add=467 Weller: WHA3000PS or VS http://www.te
