Electronics Forum | Mon Jan 09 18:57:13 EST 2017 | sssvajunas
What is optimal smt room temperature and % of wetness?
Electronics Forum | Tue Jan 10 11:38:27 EST 2017 | charliedci
68 to 72F, 25 to 30% humidity. IPC might have exact numbers.
Electronics Forum | Tue Jan 10 16:01:20 EST 2017 | davef
A review document for J-STD-001F with Amendment 1 had the following wording, but you should check the actual document to be sure of correctness 4.2 Facilities Cleanliness and ambient environments in all work areas shall [D1D2D3] be maintained at le
Electronics Forum | Tue May 06 09:44:23 EDT 2003 | gregp
A quick question(s) to anyone who operates SMT lines with only one multi purpose flex machine (P&P). What is an ample feeder count for this machine?...and secondly, do you have a standard kit of common parts that you would wish to reside permanantly
Electronics Forum | Tue Mar 31 09:22:48 EDT 2015 | rgduval
I've always hated using machine specs....they're always best case scenarios, and nearly never capture actual through-put rates. Personally, I don't like using first-piece rates, either...unless you're looking for worst case scenarios. Usually, the
Electronics Forum | Thu Mar 23 12:11:20 EST 2006 | patrickbruneel
Here's a (427 page) EPA report on Solders in Electronics: A Life-Cycle Assessment http://www.epa.gov/opptintr/dfe/pubs/solder/lca/lfs-lca-final.pdf If you look at page ES-16/table ES-4 and ES-5 it appears that SAC alloys have a higher impact on the
Electronics Forum | Thu Jun 06 02:27:43 EDT 2002 | ianchan
Hi mates, does anyone know if there is a industrial standard spec for environment(deg-C, RH%) operational use of Paste Printer machines? If there is no study to define a deg-C, RH% specs for immediate environemnt operation use of a paste printer ma
Electronics Forum | Sat Mar 27 08:15:02 EST 2004 | davef
Via in pad is a designer's dream and an assembler's nightmare. Search the fine SMTnet Archives for previous discussions to get started. VIP, via-in-pad, or whatever tend to promote voiding within the via and certainly partially starved solder conne
Electronics Forum | Sat Dec 03 02:10:59 EST 2005 | Homer J
1. What are we talking about: pcb:s or pcba:s? 2. What exactly do you want to attain with this board test? 3. Are you a pcb manufactor or a pcba manufactor? 4. You did not mention what type of boards you want to test? 5. Mechanical, operating enviro
Electronics Forum | Fri Jan 05 07:38:52 EST 2007 | John Burris
I would concur with the above comments. We have used Juki/Zevatech from the 570L model on and run a full complement of 700 series machines. I have a 10 year old 730 machine that still cranks out product every day over two shifts without problems. Yo
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