Electronics Forum | Tue Mar 20 00:02:00 EDT 2007 | Darby
Some causes of skewing. If you have exhausted all mechanical problems for that head. Pickup data from tray is incorrect. If you aren't picking up in the exact centre it is possible that the component is being skewed after vision adjustment i.e. cent
Electronics Forum | Thu Mar 22 12:46:43 EDT 2007 | Hussman
Those Panasonic machines should be able to tell ya pick-up rates form the feeders and shape code errors (components it doesn't recognize). You will probably get a more pick-up errors than anything else. Most of this is due to plastic tape versus pa
Electronics Forum | Fri Apr 06 12:25:55 EDT 2007 | mika
Thanks DaveF, Ohh I still whish there was a way to share some pictures... * Pads on pcb are very very strange: It varies from a non uniform pattern but after we measure these I would say ~0.22 - 0.24mm dia. Haha, We have never discovered such a stra
Electronics Forum | Fri Dec 21 09:20:36 EST 2007 | operator
Hello All, I read AIMs article "Time Above Liquidus". It was very informative and a good read. One thing that the article didn't touch on, that is a mystery to me, is thermal shock to components during the ramp up stage of a profile. If you
Electronics Forum | Mon Jul 14 13:45:17 EDT 2008 | ck_the_flip
Patrick... Contact LENGTH as in inches, mm, or cm...not time..is decreased with a slower belt speed. The slower the speed, the less contact LENGTH with the wave per unit time ...whereas at a faster speed, your leads are contacting more solder, th
Electronics Forum | Thu Jul 03 19:27:54 EDT 2008 | proy
5 Zone HVA70 Oven Board 6 layer, 10" x 13" lots of space, most critical is 100 pin QFP AIM Water Soluble 487 Tin Lead paste on SN100C HASL boards This board is giving me disproportionate grief! I am running 23 in / min which gives me about 3.1 mi
Electronics Forum | Sun Aug 31 17:28:09 EDT 2008 | rezer
Hello federico, This is Reese. Yes, you can pick up tombstoned parts reliably with the M1. You cannot pick up lifted leads very well however. I have not tried other algorithms yet, just histogram analysis which is the standard method for inspecti
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 | Wed Aug 04 11:01:46 EDT 2010 | ooskii
I have a question concerning what plating will go into solution during the reflow process. I am soldering a small piece of ceramic (120x180 mils 7 mil thick) onto a flex circuit. I am seeing some fractures that I am sure are being caused by handlin
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
