Electronics Forum | Fri May 03 06:03:26 EDT 2002 | geoff_goring
Dave Many thanks for your very informative piece on SMT.com As we stand we have not yet 'seen' any problem. My issue is that we have ordered (LTB) a very large quantity of ASICS and our usage has taken a down-turn. We therefore need to keep the one
Electronics Forum | Fri May 03 18:55:41 EDT 2002 | davef
Interesting situation. Everything [ie, intermetallic compounds, solderability, etc] is speculative without knowing more about the materials of: * Leads. * Solderability protection. ... because suppliers use a fairly wide of materials. Your suppl
Electronics Forum | Fri Jul 14 14:05:55 EDT 2006 | nodlac
Additional to Dave F.... A potato has Iron @ 2.75mg and Magnesium @ 55mg. The leaching of these two meatls could contaminate the solder pot and taint the solder. ----------------------- Additional to my additional..THE SOLDER POT POTATO BATTERY...A p
Electronics Forum | Tue Oct 09 21:45:21 EDT 2012 | davef
Hi Bob Ideas to consider are: * Use your handheld XRF * Swab vinegar on the copper and watch it brighten * Use the following procedure Nearly all copper minerals can be dissolved by melting with a mixture 1:2.5 of ammonium chloride and ammonium nit
Electronics Forum | Fri Mar 12 20:19:46 EST 1999 | Dean
| AVX and a few other companies make these chip transient voltage suppressors (TVS) parts that are a real *PAIN* to use. According to AVX: | "Due to the semiconducting nature of the doped Zinc Oxide (ZnO) ceramic material, SMT TransGuards ar
Electronics Forum | Tue Jun 24 13:46:21 EDT 2008 | bschreiber
I know it is not what you want to hear, but first and foremost, you must consult your local regulating agencies and here is why: Solder paste contains heavy metals. We are all familiar with the problems associated with lead, but lead free solder pas
Electronics Forum | Tue Mar 16 05:11:47 EST 1999 | Charles Stringer
| | AVX and a few other companies make these chip transient voltage suppressors (TVS) parts that are a real *PAIN* to use. According to AVX: | | "Due to the semiconducting nature of the doped Zinc Oxide (ZnO) ceramic material, SMT TransGuard
Electronics Forum | Fri Apr 10 20:35:59 EDT 1998 | Steve Gregory
| | We are having a bridging problem with SOIC 14,16 and 20 pin devices during flow solder of the bottom side of our boards. This bridging occurs about half way up the lead between the board and the body of the IC. The chip parts are no problem. T
Electronics Forum | Mon Apr 13 08:42:32 EDT 1998 | Bob Silveri
| | | | We are having a bridging problem with SOIC 14,16 and 20 pin devices during flow solder of the bottom side of our boards. This bridging occurs about half way up the lead between the board and the body of the IC. The chip parts are no proble
Electronics Forum | Wed Apr 15 15:04:18 EDT 1998 | D. Lange
| | | | We are having a bridging problem with SOIC 14,16 and 20 pin devices during flow solder of the bottom side of our boards. This bridging occurs about half way up the lead between the board and the body of the IC. The chip parts are no proble
