Electronics Forum | Mon Nov 29 10:13:02 EST 2010 | vetteboy86
My research starts here. I'm just beginning to research the effects of using a leaded part in a no lead process. Before I began, I know there are temperature differences. The part in question has a 260 C spec. Next I would like to find out if any c
Electronics Forum | Tue Apr 06 09:50:58 EDT 1999 | Justin Medernach
| Does anybody put QFP's on the backsides of boards? Can they be reflowed without falling off? Do you use adhesive? | I use a double sided reflow process all day, everyday. I've hung QFP240s with embedded heat sinks and they don't fall off. Yei
Electronics Forum | Fri Feb 11 08:20:25 EST 2005 | Rob
Depends what the joint is on, and how historically it has performed - ie. is it a part that won't wick on the wave, or near a ground plane that never forms properly. It may be that they know something you don't about the board. However any info s
Electronics Forum | Fri Jun 29 18:43:16 EDT 2001 | procon
Dear Danial, The only stupid thought is the one left only as a thought and not asked. The size of the board and the placement of the BGA on the board could play a big factor during reflow. If you are processing boards on an edge conveyor and the boa
Electronics Forum | Fri Oct 19 11:51:25 EDT 2007 | rgduval
By definition, no clean solder can be not-cleaned. The solder/flux are formulated to result in low ionic-contamination, hence, no cleaning. I have, however, always had at least one customer that requests their no-clean solder get cleaned. No-clean
Electronics Forum | Thu Aug 12 09:02:08 EDT 1999 | Gian.D
| Hello, | | Could be that touchup operators are using too much flux. What are you dispensing flux with. Disposable or refillable flux pens are good to have around. | |Good! could you suggest some suppliers name or address or web site or e.mail...
Electronics Forum | Thu Feb 19 12:22:52 EST 2015 | dman97
Hi there. I have an IP3 machine that refuses to power up the MFU cart on side 1. I have already replaced the I/O card but still no dice. Is there a relay or fuse that I need to check to get this to power up? The machine will not operate the camera
Electronics Forum | Tue Feb 24 15:32:10 EST 2015 | swiese242
Hi there. I have an IP3 machine that refuses to > power up the MFU cart on side 1. I have already > replaced the I/O card but still no dice. Is > there a relay or fuse that I need to check to get > this to power up? The machine will not operate
Electronics Forum | Fri May 17 16:15:50 EDT 2013 | markhoch
Wait.... No drain hole? Well then how are you supposed to get all that pesky solder to pull down off the part??? Have I been doing this wrong for the last 20 years??
Electronics Forum | Tue Sep 02 14:59:41 EDT 2008 | hermes
if two boards with different solder masks give different results on flux residue level after soldering with the exact same machine settings than it is clear that one of the solder masks is not compatible with your no-clean flux. could be the solder m
