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 | Tue Aug 23 13:03:14 EDT 2005 | davef
What's the point of such a test? * If you are operating a board in an environment that keeps the board at a temperature that is close to causing delamination, why not design a board that can tolerate such an operating environment, rather than contin
Electronics Forum | Wed Oct 25 15:01:10 EDT 2006 | patrickbruneel
Being cynical in a RoHS environment is dangerous; it might lead to "lead" dependency. I know it's not easy to accept the fact that the lead-free alloys and board finishes solder as well as my ceramic bathtub. By the way what do you guys distrust the
Electronics Forum | Thu Jan 04 15:04:30 EST 2007 | samir
*SCOFF*... *GUFFAW* Any "literature" that you get saying that RoHS is actually BETTER for the environment, is probably "all made up" with fake data, charts, graphs, etc. (a fat guy once told me that, that's all I know how to do..make fake data, ch
Electronics Forum | Wed Aug 22 17:32:21 EDT 2012 | icin
I recently heard an interesting requirement and wanted to poll the fine members of this forum for what their interpretation would be, and if any standard would exist: "Maintain the bill of material in an anti-magnetic environment." Thanks in advanc
Electronics Forum | Tue Jul 02 10:26:47 EDT 2013 | dporada
Thanks, the CD fixed that problem. Now I get the message "Environment variable, ApWrk, is not defined." "Exit Windows and set the environment variable before running AutoProgram again." Any ideas how to fix this one? What is the difference betwee
Electronics Forum | Mon Mar 16 08:44:42 EDT 2015 | davef
The environment of a burn-in chamber is specific. That environment has a fairly well defined affect on the metal contacts of a burn-in socket. Test socket cleaners are tailored for those specific requirements. Look at the MSDS for the WS flux and th
Electronics Forum | Tue May 25 18:08:19 EDT 2021 | scarittagle
A certain degree of cleanliness is needed in SMT manufacturing environment but not as overkill as place it in a "clean room" environment... Yes, dust could cause defect on PCBAs (and there are research papers about it too) but onl
Electronics Forum | Tue Jan 16 18:00:50 EST 2001 | mikestringer
Hi everyone I am in the process of reviewing our storage of SMT components. At the moment they are pretty much on open shelves in the factory environment. We endevour to reseal components labled 'moisture sensitive' in their original packaging, bu
Electronics Forum | Sat Jul 28 08:37:52 EDT 2007 | davef
There is no good choice. Board Finishes: Industrial/Battelle Class 3 Environment [Reliability Knowledge Gaps: For use of Pb-free solders in High Reliability Applications, J Smetana, iNEMI Availability of SnPb-Compatible BGAs Workshop, March 1, 2007,
