Electronics Forum | Mon Nov 22 10:57:25 EST 2004 | davef
On the dendritic growth over the top of the capacitor: We agree that your capacitor supplier probably did not do a very good job of cleaning process residues from their device. On the metallic fragments under the capacitor: This sounds like solder
Electronics Forum | Fri May 12 12:07:10 EDT 2006 | solderiron
The kester better known as KY'd Sn/Cu has more copper intermetallic growth over time, dissolves copper from the board faster so repairing and touchup can damage board. Bridges more than SN100c. Does not thermal cycle well. Has shrink cracks that can
Electronics Forum | Tue Jul 18 21:48:15 EDT 2006 | davef
We assume by "solder hole" you mean void. We believe void formation is driven by the thermal recipe that you've chosen to use. Search the fine SMTnet Archives for further discussion. There is a tremendous amount of current industry discussion on v
Electronics Forum | Mon Feb 26 19:05:32 EST 2007 | KEN
Is there a typical DI cleaner (washer) bath/ spray temperature? (In-line cleaner) Is there a maximum temperature? I know some parts do tend to have issues like TH electrolytic jackets shrinking. But is there any situations to be aware of? Bacteri
Electronics Forum | Thu May 10 08:09:52 EDT 2007 | davef
There is no standard for time above liquidus. It is described rather broadly by the solder paste supplier. Reflow Zone: If the temperature is too high, boards may char or burn. If the temperature is too low, cold and grainy solder joints will resul
Electronics Forum | Wed May 16 13:02:12 EDT 2007 | slthomas
Moisture barrier bags are polymer coated foil so are nearly gas impermeable. There's always some coating left at the weld (or it wouldn't stick) so they're not completely sealed but that's as good as it gets. Usually people use the vacuum to remove
Electronics Forum | Wed Jan 07 08:34:19 EST 2009 | rgduval
So far so good over here. We did 60% growth over the past two years; and the early indicators are that another 30% is doable for us. We're a small CM; just at 10 employees; but growing. Good mix of industries served. I think that and our niche of
Electronics Forum | Thu Feb 10 16:51:05 EST 2011 | vleasher
Is anyone aware of resellers that stock PCB Trays. We have Calmark C900's which I believe are obsolete and are currently using Fancort 45-RA-24CP trays. We are constantly buying new trays with the growth of our business but at ~$25 a piece its painfu
Electronics Forum | Fri Jun 14 10:47:57 EDT 2013 | jax
If you are looking into Aegis and Valor, you should also look at Optimal (Optelco), and Cogiscan. All 4 can do what you want and offer a growth path into Mixed Equipment Programming, Scheduling, Traceability, Quality Tracking, etc... Depending on y
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