Electronics Forum | Thu Apr 23 07:51:45 EDT 2009 | scottp
Every paper I've seen published shows that BGA voids either have no effect or actually give a slight improvement. The one exception are voids with a root cause in bad incoming boards, such as champagne voiding where nearly the entire interface is go
Electronics Forum | Thu Apr 30 08:33:42 EDT 2009 | kpm135
In regards to your panelized PCB it sounds like your step and repeat in you pnp program is slightly off, by 0.02mm from the sound of it. Are all of the components moving in the same direction as the fine pitched IC? I don't know what type of machin
Electronics Forum | Mon Jul 13 06:30:59 EDT 2009 | hcarrasco
1.- Check your vacuum a.- Check filters b.- Check air flow (the vacuum is generated by a Ventury using air flow, not air pressure) c.- Vaccum vias (Possible linth inside the vacuum lines) 2.- Check the nozzle condition (Probably broken o
Electronics Forum | Wed Nov 18 15:10:42 EST 2009 | jlawson
I have been programming Mydata for years. Aegis > is the most flexible. You can program every field > or you can do just the basics and finish it at > the machine. I have used Valor but it wants to > control everything, it dumps the databases eve
Electronics Forum | Mon Sep 21 22:25:05 EDT 2009 | davef
What babies!!!! Sure, give it a try. * Stencil material: metal or plastic, no difference in print, metal is easier to clean, no static problem, available * Stencil thickness: Chips 0.006", SOIC 0.010" [print height equals 1/3 thickness] * For 0603, a
Electronics Forum | Mon Sep 28 12:52:56 EDT 2009 | markhoch
I'm not familiar with this particular MPM model, but in my experience, most MPM's are Computer Controlled. There should be a CPU embedded somewhere within the machine. Check to see if it's getting power. (I'm assuming you're already checked fuses/cir
Electronics Forum | Fri Oct 02 11:23:08 EDT 2009 | floydf
Does anyone out there have experience soldering > with Pb solder (Sn 63 or Sn 62) to SAC 305 coated > PCB lands (about 50um) or Sn-Cu plated lands > (about 10um). I know soldering Pb free (Sac based > soler) to Pb/Sn coated lands is a no-no, but
Electronics Forum | Tue Oct 20 18:53:13 EDT 2009 | fdbittner
Having some issues with 56 contact TQFN. This is low-run prototype situation so no second chances - unfortunately. Part is 5mm X 11mm with .30X .63 perimeter lands and 2.5 X 8.5 thermal pad in center. Issues noted are intermittency at test (basica
Electronics Forum | Fri Oct 23 08:24:52 EDT 2009 | rgduval
Eric, I haven't used this oven; but, our Heller has built in profiling. Essentially, attach the thermo-couples to a board, and the appropriate point on the oven, and run a board (without parts). Your paste manufacturer will have published a reco
Electronics Forum | Fri Nov 06 07:41:22 EST 2009 | meritajs
You started here discussion that interesting for many OEM firms.Recently I was asked to give recommendation for one such firm. What kind of equipment they could buy for producing small series? I have learned many types equipment from different firm
