Electronics Forum | Fri Aug 17 05:58:29 EDT 2007 | dilogic
Hi, your machine is exactly the same configuration as mine. I even think we both bought them from the same seller ;-). Anyway, it's BLOCK-I with (most probably) USOS V1.4.14 software running on OS/2. I've registered the software with UIC for 400 E
Electronics Forum | Tue Sep 04 10:48:49 EDT 2007 | lloyd
How do other people check their solder joint strength after a process change? For example, say you are getting wetting problems and you feel that a change to the reflow profile may help, or perhaps a slight change to the stencil aperture to reduce so
Electronics Forum | Tue Sep 18 19:32:49 EDT 2007 | davef
Welcome Jimmy Let's mince words to help focus on the issues. When you say "QFP area solder paste shifted," do you mean: * Paste printed on land pattern perfectly, but moves after printing. * Paste printed off the land pattern, even though the stenci
Electronics Forum | Fri Sep 28 18:16:21 EDT 2007 | hegemon
Replacing Screen Printer with a dispensing system? If you have large complex PCBs you will lose a bit of time to say the least. That being said, we have had great success with an I&J Fisnar 'bot with positive displacement (auger) valve for dispensi
Electronics Forum | Wed Oct 17 17:51:13 EDT 2007 | jmelson
Yes, mostly. The computer just has a setting for which size frame it is in (66, 84 or whatever). The bearing slider is almost certainly the same, too, although the rails are a different length. As best as I can tell, my 1306/20 (which is NOT a III
Electronics Forum | Fri Nov 09 07:28:48 EST 2007 | jola
We have tested the Feeder Master and I have to say, we are not impressed at all. The main thing that we thought would be great with it was to test the feeders in full speed, but you dont get any data out from the machine so you only end up waching th
Electronics Forum | Wed Oct 24 15:10:12 EDT 2007 | slthomas
You may very well be right Hussman, but I'm not certain that marcin knows exactly what he wants to know. :) I would call that ramp rate, not delta t, but that's my language. marcin, what I'm talking about are the varying temperatures on your board d
Electronics Forum | Thu Oct 25 07:54:57 EDT 2007 | hussman
It's all by feel and looks. Too many variables to tell you exact number of times. Most profile boards are set up to perform initial profile and then repeatability at a set period after that. So changing boards will alter the t-couple and skew your
Electronics Forum | Thu Nov 01 17:24:20 EDT 2007 | jmelson
I think the Yamaha 84S is very similar to my Philips CSM84. head 3 cannot reach all the feeder locations. I believe feeder locations 1-3 on the front rail, and is it 41-43 on the back rail (the first 3 again) are out of range for the X axis to move
Electronics Forum | Sat Nov 24 15:44:28 EST 2007 | mika
Hi DaveF, I had a short look into the Nr1. IMPACT OF MICROVIA-IN-PAD DESIGN ON VOID FORMATION Most interesting reading, but one thing though, I could not find any information about the oven profile. Just a picture of it. My question is of about the
