Electronics Forum | Mon Feb 23 13:12:55 EST 2004 | Mark
I have used MPM 3000 and Dek 265 Horizon. We always just fill them up with regular old alcohol. Cheapest and easiest way to maintain.
Electronics Forum | Sat Feb 14 12:33:30 EST 2004 | agp
We are currently experiencing solder bursting in one of our smt reflow lines. Burst as small as 5mil diameter are messing gold fingers of the pcbs. Anybody who have experienced same problem? Would appreciate any suggestion.
Electronics Forum | Sat Feb 14 20:30:55 EST 2004 | Dean
What are your preheat rates? Try a slower ramp. A typical insurance policy is to kapton tape the gold card edge. If your problem persists, try baking the boards to drive the moisture out.
Electronics Forum | Mon Feb 16 06:26:14 EST 2004 | Chris Lampron
Jun, What is your RH in the SMT area? Is a different paste used on this product than on the other lines. Could your paste be absorbing humidity from the air and discharging the moisture at reflow? This will cuase what you are describing. Good Luck
Electronics Forum | Sun Feb 15 00:22:58 EST 2004 | Eric
Hi, I'm looking a unit of ESD vacuum clearer. Is there any good recommend which is the best. Thanks.
Electronics Forum | Mon Feb 16 20:43:29 EST 2004 | davef
We're not sure if it the best, but if you search, you'll see that lots of companies [eg, 3M, ESD Systems, etc] brand and resell Atrix vacuums [ http://www.atrix.com/ ]
Electronics Forum | Wed Feb 18 12:21:09 EST 2004 | babe
Check out Data-VAc also known as Metro Vac. Also 3m does offer a vacuumthat is esd safe. Prices range from $100.00 to $300.00.
Electronics Forum | Mon Feb 16 20:47:46 EST 2004 | davef
Removal: Run the board through the reflow oven with the cooling zone turned off. Then pick the QFP with a pair of tweezers. Replace: Don't clean the solder from the QFP. Just dip them in tacky flux, place the component, and reflow.
Electronics Forum | Tue Feb 17 09:22:09 EST 2004 | bobbyv40
Check out Zephyrtronics, they have a low temp solder system that we use with very good results. http://www.zeph.com/lowmelt.htm Good Luck
Electronics Forum | Tue Feb 17 10:07:08 EST 2004 | davef
Bobvsi: A couple of questions for you: * How does adding a low melting point solder to your "regular" [near eutectic] solder increase the speed of removing components? * How does what are the solder alloys that form when using this low temoerature so
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