Electronics Forum | Wed Aug 10 09:01:15 EDT 2005 | fctassembly
Hello Joseph, Sorry for the bad news but microcracking is a well known potential condition occuring with the SAC305 alloy. Microcracking is a condition being seen with many joints soldered with the SAC305 alloy. It is technically a shrinkage cavity
Electronics Forum | Tue Nov 03 18:56:22 EST 2020 | goldendragon
All, I'd like to know what a good used wave pb-free solder machine out there? Appreciates!
Electronics Forum | Thu May 18 21:05:58 EDT 2006 | Wizard of Oz Tin Man
"Solder alloy compositions are numerous but the most important are still the tin lead solders which were used by the Romans. Tin melts at around 232�C and lead at about 327�C in the combination 62Sn 38Pb the resulting alloy melts at 183�C. This compo
Electronics Forum | Thu Jun 07 03:54:16 EDT 2007 | testbloke
I currently have issues with "slivers" of solder on or behind QFP devices. This has only occured on PB Free boards (we currently produce PB and PB Free on same equipment). This is not tin slivers, this is a long thin sliver of solder measuring up to
Electronics Forum | Thu Feb 23 12:17:47 EST 2006 | mafc65
As Russ say, you can buy kits from Practical components and make your tries, the send those pcb's to your solder paste vendor for analysis.I am using Senju Lead free solder and I send boards to them then they cut the board and analyze your solder con
Electronics Forum | Mon Feb 04 14:42:08 EST 2008 | ratsalad
Are you talking about Durastone? That's what we use for our wave pallets. Both our wave vendor and solder bar vendor told us that we had nothing to worry about as far as Pb-contamination of the pallets. We have used the same pallets across our Sn
Electronics Forum | Tue Feb 01 11:54:14 EST 2005 | TomA
Indy, I found the same findings as you. The claim is that the solder joint may actually look closer to a SnPb solder joint then the SAC alloys. I had commited to the SAC alloys at SMT before finding out about the SN100C alloy. I'm interested in what
Electronics Forum | Thu Jan 27 16:43:15 EST 2005 | russ
Ther is a solder alloy out there that is supposed to allow lead free wave processing without having to upgrade pumps and such or increasing the pot temp (direct drop in). I have not used it nor do I plan on doing leadfree wave soldering but you may
Electronics Forum | Tue Feb 21 16:38:18 EST 2012 | comatose
We finally can't avoid adding wave solder to our process anymore. For lead-free, medium sized wave I'm leaning towards mid 2000s senju units as the best fit. I've never run their equipment. Opinions? As a point of reference for our general capabilit
Electronics Forum | Tue Feb 21 17:08:16 EST 2012 | cellis
We finally can't avoid adding wave solder to our > process anymore. For lead-free, medium sized wave > I'm leaning towards mid 2000s senju units as the > best fit. I've never run their equipment. > Opinions? > > As a point of reference for our
