Electronics Forum | Mon Sep 21 15:06:05 EDT 2009 | rramplin
I know the approximate shelf life for good and OK storage of ENIG and Ag boards but I do not know what these times are like for HASL. Can anyone help me out here. Thanks.
Electronics Forum | Wed Oct 30 18:19:17 EDT 2019 | slthomas
We use ENIG whenever possible, to the extent that we will try to talk customers out of Pb-free HASL until our keyboard punching fingers bleed. It's much more solderable than HASL and it's flat.
Electronics Forum | Thu Oct 31 06:11:26 EDT 2019 | spoiltforchoice
> We use ENIG whenever possible, to the extent that > we will try to talk customers out of Pb-free HASL > until our keyboard punching fingers bleed. It's > much more solderable than HASL and it's flat. Ditto
Electronics Forum | Fri Jan 16 16:36:07 EST 2009 | boardhouse
i would not try to chemically clean the finish, you would just be asking for other problems. 1) I would ask your supplier their Hasl mix. Standard Lead hasl is 63/37 - it almost sounds like your boards have a higher content of Tin and your experien
Electronics Forum | Tue Apr 17 10:16:42 EDT 2001 | davef
Welcome to SMTnet. Awww, those assemblers are always whining about something. Just tell him to shut-up and build the blankin� boards. Jeesh!!! We used to have copious archives on the topic on SMTnet and our friend Brian is working his fingers t
Electronics Forum | Wed Dec 22 07:20:21 EST 2010 | piter
HI I used both of solder leveling HASL and ENIG, HASL I can recommended for biger pitch is cheaper solder leveling than ENIG but problem with that solder leveling is during the reflow process HASL isn't flat and during reflow process component move
Electronics Forum | Mon Jul 26 09:19:57 EDT 2004 | davef
Both imm silver and ENIG provide flat surfaces that are better for fine pitch placement and reflow than HASL. We know of nothing that makes BGA locations different than other locations when using ENIG solderability protection. More broadly, the pri
Electronics Forum | Wed Mar 16 20:53:31 EST 2005 | KEN
Where does this notion that thermal profiling is absolute come from?
Electronics Forum | Thu Mar 17 06:48:18 EST 2005 | Rob
The people who charge lots of money for their thermal profiling products.
Electronics Forum | Thu Mar 17 06:59:07 EST 2005 | Grant
Hi, Thermal profiling is not absolute? It seems to work great for us. Regards, Grant
