Electronics Forum | Wed Aug 17 22:41:37 EDT 2005 | davef
Peter are you having fun with solder masks erwat? We saw this years ago with LPI solder masks. It shows occasionally with other masks. We agree with Russ. If nothing [eg, alcohol, flux thinner, acetonitrile, or water] dissolves the haze, then it
Electronics Forum | Mon Aug 29 12:11:09 EDT 2005 | Kris
what is the plating on the component ? Lead free ?
Electronics Forum | Mon Aug 22 09:23:55 EDT 2005 | rjmfigurelli
Sample Profile to avoid solder balls.
Electronics Forum | Mon Aug 22 09:25:54 EDT 2005 | cyber_wolf
Consult your solder paste supplier.
Electronics Forum | Mon Aug 22 10:16:26 EDT 2005 | davef
There's a lot of sources of solder balls. Search the fine SMTnet Archives for previous discussions.
Electronics Forum | Mon Aug 22 20:02:06 EDT 2005 | chad
SolderMask, Inc. in Huntington Beach. Ask for Frank Kurisu. Ph: 714-842-1987
Electronics Forum | Fri Sep 02 11:44:59 EDT 2005 | Brian
We (ETS) are a manufacturer of reflow, curing and preheat systems and have had similar requests from customers in the past. One in particular required soldering onto an aluminum heat sink weighing approx 5 lbs. You might consider selective/robotic so
Electronics Forum | Sun Aug 28 09:23:52 EDT 2005 | davef
Sara Rice: How did you determine the balls were entrapped?
Electronics Forum | Thu Sep 01 09:05:47 EDT 2005 | russ
Thermal pads located underneath leadless devices require a 50% reduction in the stencil aperture.
Electronics Forum | Thu Sep 01 11:25:21 EDT 2005 | chunks
Unless it is peppered with via holes. Then it depends on the size of the pad and via holes.
