Electronics Forum | Fri Jun 01 23:57:21 EDT 2012 | bwjm
HI Guys, i am facing similar issues with this BT resin material too. PCB specs are 4 layers, Nelco400013, same Tg and Td. My PCB delam after reflow. The PCB has both side mounted with SMDs. Initial mounting on the btm side after reflow, no delam. B
Electronics Forum | Mon Jun 04 16:53:39 EDT 2012 | comatose
I have a sales guy coming out to demo a ScanSpection (AOI Systems?) machine. From a little searching these seem to either change names in different territories or pass through different owners. I gather this isn't the "real" YesTech. Price is right,
Electronics Forum | Wed Aug 08 10:25:17 EDT 2012 | markhoch
Hi SWAG, Quick question... What type of equipment are you using? We're having constant issues with our Air System. Dryer has had to be rebuilt two times already this year, two air compressors, and both have needed major repairs this year as well. Th
Electronics Forum | Thu Jan 31 08:27:32 EST 2013 | phase1
Hello, We have just aquired an MV-2HTL AOI with the NG marker option. We are looking for someone familiar with these machines to provide training. I have programmed a board already using the manuals but am not confident as to what values and passing
Electronics Forum | Fri Mar 01 03:16:01 EST 2013 | grahamcooper22
Solder paste flux formulation can make a difference when soldering to nickel silver...due to the alloy containing metals that oxidise easily like zinc and nickel then the flux has to be able to cope with the surface oxidation when the parts are in th
Electronics Forum | Fri Feb 22 09:41:54 EST 2013 | patrickbruneel
Pete, It would even be better if the wave machine manufacturers would add a feature that allows the wave to drop in rpm when a board passed the wave, and slowly get the wave back to normal rpm when a new board approaches. This would be like a reset
Electronics Forum | Tue Apr 02 13:43:54 EDT 2013 | ericrr
On one of the products uses a QFP (Quad Flat Package)which is not going on straight, maybe 20 pins per 4 sides. sometimes I have to tweak the alignment before the board goes in the oven, this practice can be a bit of a worry if you over tweak it - pa
Electronics Forum | Mon Apr 29 01:29:29 EDT 2013 | aemery
If your current problem with the conveyor speed was caused by the SMEMA issue, maybe you have a Board #1 problem. The SMEMA communicates to the computer through Board #1. The input signal from the speed encoder and the output analog voltage to the
Electronics Forum | Fri Jul 19 10:01:30 EDT 2013 | dontfeedphils
In a past life I ran F1 systems post placement / pre reflow behind a MyData My12E, so it didn't exactly have to keep up with a speedy chip shooter, but it did pretty well. The AOI would end up being the bottle neck some of the time, but not because
Electronics Forum | Fri Sep 20 01:39:21 EDT 2013 | winson16
gold, one of the stablest elements on the > periodic table oxidising. Are you sure, and why > would you want to reduce the vision fail rate on > a part that is clearly shockingly poor? Old inventory is holding a huge material cost and if i can f
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