Electronics Forum | Fri Mar 03 14:40:22 EST 2006 | amol_kane
i think a more important issue here would be the reduction ratio. as LF solders have a higher surface tension, they do not flow as well as their leaded counterparts. therefore the stencil design may have to be changed (hence a new stencil) if the red
Electronics Forum | Tue Jul 11 10:13:22 EDT 2006 | SWAG
Over time, you might see problems with delam., blistering and warpage if using FR4 carriers. Depending on volumes, you might consider using durostone or some robust material like that for the production runs. Keep in mind that switching materials w
Electronics Forum | Fri Aug 24 08:53:54 EDT 2001 | gerits
Hi, Have a look at following site assembleon.com They have exactly the equipment you're looking for and with the requirements you asking for. In case you want detailed information you can contact me via e-mail or phone (+31 - 40 - 27 66053). I can
Electronics Forum | Wed Jun 11 11:50:50 EDT 2008 | mmjm_1099
Mydata is a large footprint. I would personally look into AIM, XP242, or even universals or panasonics. I would make sure to watch auctions or check used market. We just purchased a XP242 not long ago from auction for about half the proce of a new on
Electronics Forum | Tue Mar 04 17:47:19 EST 2003 | msivigny
Hello EW, thanks for your input, the data collection for measurements such as these can get confusing because you're calculating deviations from set point location to actual placement location and then analyzing the full result. Then there are many o
Electronics Forum | Sat Feb 05 14:51:49 EST 2005 | etienne
One important thing to look at, when buying an AOI is the False Calls Rate, along with tact time of machine to inspect the PCB. Obviously, many machines can do the the work....but it's also true that each machine differ from the way it do the work. S
Electronics Forum | Thu Oct 18 11:08:22 EDT 2012 | scottp
Since we follow IPC Class III, I've done experiments turning N2 on and off and measuring void level with both SnPb and SAC305 solder. In both cases there was a statistically significant, measurable increase in voids with N2, but it wasn't significan
Electronics Forum | Tue Aug 28 09:53:44 EDT 2001 | Brock
Stefan, I could be wrong but I have a question about every 10th board having a defect. If a machine places 1 million components and a the board has 200 components you arrive at 5000 boards. If every 10th board has a defect, then only 500 boards have
Electronics Forum | Tue Aug 28 14:21:39 EDT 2001 | Scott B
You have to be careful here. The figure is expressed as placement accuracy, not process quality therefore 3 sigma does not relate to 2700 PPM defects but 2700 parts per million placed outwith 15microns (0.0006" / 0.6thou). Extrapolating the distribu
Electronics Forum | Thu May 28 10:57:10 EDT 1998 | John
Our company is currently looking to implement a SMT production line. What I am looking for is feedback on people's experiences with various machines. Here's what we are in the market for: Low/Mid volume 3,000+cph machine that can handle high job fle
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