Electronics Forum | Fri Apr 16 11:03:35 EDT 2004 | davef
Your copper corrosion is not good. It indicates that you have not done a good job in cleaning. [We assume this is a medium green color, not unlike the color of the solder mask on your board, that is almost like a translucent lacquer; rather than th
Electronics Forum | Wed Apr 21 11:33:20 EDT 2004 | tigerlordgm
As one of our small batch processes, we place BGAs on PCB without using solder paste. We apply tacky flux to a predetermined height on a pallet, "dip" the BGA into the tacky flux to wet the solder balls to the set height, and then use a BGA rework st
Electronics Forum | Wed Apr 21 18:24:13 EDT 2004 | pjohnson@volterra.com
Simple process - we use similar Kester solder brands of "no clean" low residue solder wick to clean our pads, then brush with isopropyl, and apply Kesters brand of tacky flux under a Leica 6x microscope. We do this on 7x7mm and 9x9mm packages. This w
Electronics Forum | Mon May 17 02:06:57 EDT 2004 | johnwnz
Look here: _a class=roll > href="http://www.aimsolder.com/techarticles/tech%2 > 0sheet%20BGA%20voiding-%20reducing%20through%20pro > cess%20optimization.pdf" > target="_blank"_http://www.aimsolder.com/techartic > les/tech%20sheet%20BGA%20voidin
Electronics Forum | Fri May 07 18:05:28 EDT 2004 | valuems
Hello Sam The problem that you have is the software in the cognex box has to match the soft ware in the computer. Also the 3 1/2 floppy reader in the cognex box is a special made unit. Not just any 3 1/2 reader will work. The way we fix most of th
Electronics Forum | Sat Jun 05 08:18:03 EDT 2004 | vinitverma
Hi Grant, If you're really looking for speed, I'm sure you're looking for another machine for doing the QFPs, BGAs stuff etc. In that even, why not have a look at the long proven Assembleon FCM machine!! It is a totally different concept with UNMATC
Electronics Forum | Wed Mar 30 17:35:18 EST 2005 | Grant
Hi, Yes, it was fun reading this thread again. We initially upgraded our MY9 to a MY12 with line scan camera, but it was still too slow. We considered getting a second MYDATA, but decided to go with some FuJi XP 142, and 242 machines, with a second
Electronics Forum | Wed Jun 02 16:33:08 EDT 2004 | davem
Fuji is the best, but there are other alternatives besides Quad. If you really want to look at Fuji, take a peek at their XP142E series. With "Vision processing on the fly" and a "Mini Turret Head" with 12 placement nozzles it should fit your needs n
Electronics Forum | Mon Jul 05 03:44:53 EDT 2004 | johnwnz
Dave, I'm going to disagree with you on the ENIG, it's my 3rd choice only just beating out OSP for that 4th spot. 1. Immersion Silver - cheaper than ENIG, as flat and no issues with Brittle interface (black pad) or Gold Embrittlement) Longer shelf l
Electronics Forum | Tue Aug 17 10:09:34 EDT 2004 | Phil Z
From my perspective, regardless of the size of your company, you want the best value for your money and latest, greatest in innovation. For pick and place, while Mydata, Siemens and Assembleon/Yamaha all have some cool and worthy concepts and worth e
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