Electronics Forum | Thu Nov 15 10:19:05 EST 2012 | davidmercader
Hi, We have problems with our wave soldering process. The problem is that during the same assembly, after wave soldering, some pcb’s look not clean and other pcb’s look good. We use lead free SAC305 solder and flammable flux. We think our proces
Electronics Forum | Mon Feb 11 13:07:30 EST 2013 | deanm
You want your machine to spot the fiducials automatically. A 40mil round copper pad is the absolute minimum fiducial to use, but we found in practice that our Quad equipment won't spot them reliably. I am now using a 60mil round fiducial and it picks
Electronics Forum | Mon Apr 08 07:20:56 EDT 2013 | leemeyer
What operating system are you using ? I have found that you need to stay with a DOS based operating system. I am running DOS 6.2 with windows 3.11. I tried win 98 and although it seemed to run properly, I would have problems in the final program. XP
Electronics Forum | Fri Sep 13 08:17:13 EDT 2013 | gregp
Hello Action_101, We are pretty much on the same wavelength as far as moving the cut and clinch and leaving the board stationary. It is the first I have heard about the cut and clinch being difficult to work on but you worked on them so your opinio
Electronics Forum | Mon Nov 25 18:43:29 EST 2013 | hegemon
Without the proper tools in house you will not be able to determine anything but the most obvious problems. At minimum, some side looking microscope that would allow visual inspection of a row or two, and to be able to rule out bridging. Using that
Electronics Forum | Fri Dec 06 14:39:52 EST 2013 | davef
Depending on how much you require, there may run into some minimum material thresholds. * Research on 3M website: http://solutions.3m.com/wps/portal/3M/en_US/Electronics_NA/Electronics/Products/Product_Catalog/~/All-3M-Products/Industry-and-Professi
Electronics Forum | Wed Jun 11 16:41:57 EDT 2014 | isd_jwendell
With Essemtec software you can specify to turn on vacuum once the nozzle is down at the part. The default method is to turn on the vacuum while the nozzle is up, but starting to move down. For light/tiny parts this can have the effect of making them
Electronics Forum | Mon Aug 25 08:15:54 EDT 2014 | jax
With a melting point of roughly 300°C, you would need to have the product see temperatures peaking around 325°C at a minimum. (I would make sure the components and PCB materials can withstand these temperatures) Most convection ovens do not go over 3
Electronics Forum | Fri Jan 23 11:27:45 EST 2015 | charliedci
Per our selective solder provider, they recommend a PSA type generator to supply the needed 99.999% pure N2. The membrane type (which we have) does not provide the minimum (99.995%) purity necessary for lead free wave soldering. They happen to sell P
Electronics Forum | Fri Jun 03 12:44:46 EDT 2016 | cyber_wolf
"and most importantly inexpensive" Define inexpensive... I always get fired up about "expensive" Expensive compared to what is my question ? A car? a house? If you want what you are speaking of, you will be spending some coin. If you want, semi r
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