Electronics Forum | Wed Oct 03 12:04:55 EDT 2001 | slthomas
When we found this to be a problem with some QFP 100's (.020" pitch, and our first experience with fine pitch - 48 of them on a 2-up panel), we saw that the solder was running up the leads during reflow and staying there, leaving the fillets thin or
Electronics Forum | Tue Feb 09 18:53:20 EST 2021 | SMTA-64387083
You'll have to do at least 2up array since most conveyors won't handle boards less than 2in wide. I'm assuming it's FR4 lead free temperature material and PCB's are scored in the panel. The 13-16in lengths aren't a problem other than depaneling. With
Electronics Forum | Sat Dec 11 12:15:21 EST 1999 | Steve Thomas
We have a pretty challenging board (2-up panel, 15"x20", 48 20mil pitch QFP 100's and 2 25mil QFP128) that gives us LOTS of lead bridging on the 20 mil parts. There is typically very poor wetting on these parts also, and some joints just flat aren't
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