Electronics Forum | Thu Jun 13 20:55:46 EDT 2002 | russ
Having just gine through a similar problem myself (with much less equip.) Here are a few things to consider and/or look at Do you have the proper pad size? It should be the same size as the pad on the BGA. Is the board warping during your operati
Electronics Forum | Wed Sep 13 05:32:11 EDT 2006 | Rob
Hi Peter, are you talking about storage times after opening sealed packaging and the effects on solderability due to oxidisation/moisture sensitivity? Cheers, Rob
Electronics Forum | Mon Aug 28 17:54:59 EDT 2000 | Steve Thomas
We're trying out 0603 packages on some 0805 footprints (at this stage only on some test boards) since our vendor tells us the 0805's are going to be getting harder to get, and more expensive to pay for. I understand the IPC footprint for the two is
Electronics Forum | Thu Sep 02 06:22:34 EDT 2010 | sachu_70
Good. This is the right way to profile. Let me ask you, have you anytime soldered QFN componets on your boards? The concept of LGA soldering is similar to that used for a QFN package. QFN soldering also exhibits void formations, and is an inherent pr
Electronics Forum | Sat Jun 10 00:47:25 EDT 2023 | frankchan
Hi, been following your requests for a while, Ovens are our specialties and are manufactured in our warehouse. 3 years warranty supported. For mounter alone, we can support multiple choices based on your requests, plus the selective oven, I think you
Electronics Forum | Tue Aug 18 02:10:14 EDT 2009 | sergey2007
Hello, I have a customer who recentely installed a vapor phase soldering system. Everything goes pretty well, but from time to time the customer has the same problem with the soldering: one of the components on PCB (usually, it's a QFP package) is ro
Electronics Forum | Wed Aug 26 03:21:00 EDT 2009 | sergey2007
Hi Graham, the MSD level of the component is 3. I am not sure that my customer properly stored the component before the soldering process. And I am not sure that it was dried at all. The customer says they did everything that they had to, but I just
Electronics Forum | Mon Sep 19 07:56:19 EDT 2005 | Pop
How we can improved the Solder voids on QFN Packaging. Actually we adjust the time for solking to long . But is not affected. Pls advise. ThANK YOU
Electronics Forum | Fri Jan 23 12:34:28 EST 2015 | dyoungquist
Our nitrogen generator and an air drying unit came with the selective solder machine when it was purchased new in 2008 as a package deal. We originally were feeding the system with air that was not properly dried. That lead to some maintenance cost
Electronics Forum | Thu Jul 15 18:07:04 EDT 2004 | dwanzek
This has been a tough one to date. Any ideas will help. Problem definition � random QFP144 part not soldering all leads. Percentage fallout is about 1-5% of boards. Usually leads, one or more, on trailing side to the direction of travel does not wet
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