Electronics Forum | Mon Aug 05 10:06:41 EDT 2013 | stevevb
Hello Scotty, As a CM, your first process should be new. We bought a Quadra P&P centric line to build our solid state relay products and loved it so much, we (VB Controls) became a TWS Automation distributor. Recommendation: 2700 semi-automatic s
Electronics Forum | Mon May 07 16:07:05 EDT 2012 | davef
Start with targets based on the stencil thickness (for height) and stencil thickness times the aperture size (for volume). * Set reasonable upper and lower control limits (+ 25% and –25 % of the targets, for example). * Next, check the printer set-u
Electronics Forum | Wed May 09 03:13:06 EDT 2012 | umar
I had send my coating board to the test lab for adhesion coating test. 3 times send, the result 3times fail. The coating chemical use is Humiseal 1B31. The process is clean the boards at washing process use the Vigon A200 saponifier mix with DI wate
Electronics Forum | Sun May 13 02:08:26 EDT 2012 | isd_jwendell
In testing 63/37 SnPb NC paste I have seen HUGE differences in performance. Have you tried a different paste? I prefer AIM (NC257-2), they have performed well in each round of testing. My observations regarding mixing old and new paste: The paste ha
Electronics Forum | Wed May 16 01:06:38 EDT 2012 | bwjm
Hi Before I say anything I ll qualify who I am. I > work for a AOI/SPI manuafacturer > > Automatic > printer is your best option for small > runs. Print process is responsible for a vast > number of solder defects and improving here is > your b
Electronics Forum | Wed May 16 12:53:26 EDT 2012 | deanm
CS-400C: As with anything, once you are up on the learning curve its really not that bad. The "E" machines should be easier due to the touchscreen and the floppies are PC compatible unlike the "C" and "D". There are third party software providers tha
Electronics Forum | Sun May 27 19:51:00 EDT 2012 | darby
Seeing as you say you only have a small amount of cash ... I'd also consider a semi-auto printer where you align a golden board, set up the two cameras by boxing or overlaying a pad etc, and then use the vernier adjustment to get each pcb to align wi
Electronics Forum | Wed Dec 19 21:21:02 EST 2012 | davef
MosheSh: When it comes to ground planes, most designers are out over their skis. They don't understand what's going on or how it affects their design. So, they get massively conservative about the number of plane layers, whether they can be hatched o
Electronics Forum | Mon May 21 15:39:49 EDT 2012 | davef
This paper seems to take a balanced view as an approach to assessing xray machines http://www.focalspot.com/swf/WP-Price-Performance-Value.swf Let us add to this by saying, we don't work for the company referenced above, don't own stock in the comp
Electronics Forum | Tue May 22 10:33:36 EDT 2012 | swag
In my opinion, the best solution is h-towers or similar dedicated tooling designed for each build. However, a quick cheap fix is to make templates to lay in the bottom of the centernest. If you have access to CAD software, you can print out the ger
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