Electronics Forum | Tue Feb 05 09:01:59 EST 2013 | emeto
Hi, you will train him exactly as much as you want him to know. Do you have somebody who makes all the programs and tunes the machines for each product? If so let him just load feeders and push the green button. I have worked on different places and
Electronics Forum | Fri Jun 07 10:02:01 EDT 2013 | sarason
In thirty years of Electronic service I have never had problems with moisture in boards when hand soldered. I have worked on boards in boxes for defense through industrial control, joy rides etc. Sometimes they some back buried in half an inch of dus
Electronics Forum | Thu Nov 07 15:06:11 EST 2013 | hegemon
1st X-Ray looks pretty good. One instance of what looks like solder migration in the lower left quadrant. 2nd X-Ray shows a number of locations where the solder has migrated into the vias, shown by the small dark circles between the main spheres.
Electronics Forum | Wed Jul 03 14:16:09 EDT 2013 | horchak
Hi, I had seen your post earlier but had lost my very old log on information. First I will say that BGAs should never be placed and re-flowed with a rework station unless there is absolutely no other option, so I don't understand why your assembly ho
Electronics Forum | Mon Jul 29 11:20:10 EDT 2013 | rgduval
Is there any particular reason you're looking at getting a dedicated machine?! The first question that pops to mind is...are you having so many mis-prints that you need dedicated equipment at the site to mitigate the issue? If so, I know you've bee
Electronics Forum | Thu Aug 08 15:47:07 EDT 2013 | joeherz
Shawn, Wow. This is a tough one. The part is a 1 pc where I'm used to seeing a 2pc. In our case, we have several assemblies using a 2 pc system (see Laird BMI-S-207-C and BMI-S-207-F). The "C" and the "F" stand for Cover and Fence. The Fence is
Electronics Forum | Tue Aug 13 06:23:51 EDT 2013 | mccabekev
We are running a Heller 1707 EXL reflow oven, but we have a temperature variation across the board. When the oven first comes up to temperature, the centre of the board is 10degC hotter than the inside rail which is a further 10degC hotter than the
Electronics Forum | Sun Jan 12 09:29:20 EST 2014 | spoiltforchoice
Subtle spamvertising there. Lower Cost small machine brands worth looking at are probably: Mechatronic Intelligent Drives (UK only?) TWS Autotronik or their Manncorp branded models in the USA Fritsch Innotech Heeb (a virtually invisible market share
Electronics Forum | Thu Sep 19 11:02:17 EDT 2013 | hegemon
If there is only a single lead free BGA on the BOM, I would suggest a "hybrid" profile. Use regular solderpaste (SN63/pb37) and peak your temperature at around 225C. Allow a bit longer TAL to let the two solders co-mingle at the BGA joints. You are
Electronics Forum | Thu Oct 31 17:42:14 EDT 2013 | dontfeedphils
YesTech makes a pretty nice machine, the software is pretty simple to learn and use. My shop runs on average 3 or so new products a week, so quick and easy programming is a must. Most programs can be done in an hour, usually less, depending on how
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