Electronics Forum | Mon Feb 26 14:15:21 EST 2001 | marting
Steve, Currently we are using selective pallets and the best piece of advice is to find a supplier that will be able to handle the requirements of the selective wave process, for example proximity of chips to PIH devices, and pallet thickness etc. We
Electronics Forum | Tue Aug 31 19:50:44 EDT 2004 | davef
To take our turn at keeping everyone else on the straight and narrow. For more on lead contamination of no-lead solder, look here: http://www.aimsolder.com/techarticles/Lead%20Contamination%20in%20Lead-Free%20Electronics%20Assembly.pdf [We apolog
Electronics Forum | Wed Sep 29 19:47:44 EDT 2021 | emeto
"For the lead free soldering of electronic assemblies, the inclusion of silver in the alloy results in better wetting compared to non-silver containing alloys and also allows for a broader process window. Silver also improves joint reliab
Electronics Forum | Wed Apr 02 14:47:59 EST 2003 | slthomas
Operating Parameters X Direction (left to right) 18.0 inches Y Direction (front to back) 18.0 inches Z Direction (up and down) 1.5 inches Operating Speeds Slew speed and point-to-point is 20 in./sec. Eight increments of speed control from 0.01 in./
Electronics Forum | Tue Jun 20 10:15:44 EDT 2006 | samir
Again, the verdict is mixed here as well, but from the seminars, white papers, etc. the consensus seems to be that Pb BGA's are not compatible in a Pb-Free RoHS Process...but... Pb-Free SAC BGA's are compatible in a Sn-Pb process as long as your pro
Electronics Forum | Mon Sep 08 11:53:15 EDT 2008 | aqueous
Here are links to articles on that subject: Can You Clean a No-Clean Assembly? http://www.residues.com/pdfs/Circuits%20Assembly%20Articles/2003/low%20res/2003.01-Can%20You%20Clean%20a%20No-Clean%20Assembly%20-%20Circuits%20Assembly.pdf Component
Electronics Forum | Thu Sep 05 17:50:43 EDT 2002 | pjc
There are no "standard" spray fluxers that come w/ the Electra. The spray fluxers offered are: SelectaSpray? -Fixed multiple nozzles spray fluxer, 510 mm (20 in. ) Max width AccuSpray?- Reciprocating spray fluxer, 600 mm ( 24 in.) ext. only) Opti-Flu
Electronics Forum | Sat Nov 12 07:00:40 EST 2005 | davef
Those limits of allowable impurities have been set over many years of practical experience. People area talking about lead contamination of lead-free solder connections, but I can't find specific numbers in my notes. Places to start are: * One of T
Electronics Forum | Tue Dec 04 14:31:50 EST 2007 | davef
Search the fine SMTnet Archives for previous discussion. This technique has been called 'pin-in-paste,' 'paste-in-hole,' 'intrusive reflow,' 'alternative assembly and reflow technology' and who can remember all the other consultant buzz-words. Look a
Electronics Forum | Sun Sep 13 09:21:26 EDT 2009 | davef
You as, "What data is available showing the long term reliability of the intermetallics of the solder joints?" Alloy||Microstructure Sn-Pb||Lamella or globules Sn-Cu||Sn-matrix, Cu6Sn5 needles or globules Sn-Cu-Sb||Sn-matrix, cuboids of SbSn and Cu6
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