Electronics Forum | Tue Feb 01 21:48:12 EST 2000 | Dave F
Guo: You want to know: 1 Can I use water as the solvent in an ultrasonic machine to remove solder paste from PCB? Continuing from Jason�s comments: Sure you can use water as the solvent to remove solder paste from PCB, but recognize that some flu
Electronics Forum | Wed Feb 09 15:23:14 EST 2005 | GS
Hello, few comments: - what is the criteria to decide if re-ball or not a PBGA? - any electrical test is performed toPBGAs before reball ? - what in case the reballing has been done on a electrical damaged PBGA? In that case the replacement of
Electronics Forum | Sat Feb 10 09:36:52 EST 2007 | davef
Choices are: * Run a Cp, Cpk capable profiler through the oven. * Review the results of your supplier's process qualification that would include Cp, Cpk on their oven. Handspring contract [REV. 6 - 7/1/99] with Flextronics says: [snip] 4. Process Ca
Electronics Forum | Thu Aug 24 12:04:05 EDT 2000 | Wolfgang Busko
I see that it�s not a well intended process you run, just born out of necessity. It�s good to see that someone always finds a solution (McGyver-like) if he encounters a problem although this one seems rather specific. Normally I would say "never chan
Electronics Forum | Mon Oct 11 05:48:17 EDT 1999 | Brian
| I am checking out trays for packing of Simms, and I would like to know what are the main differences between Anti-Static and Conductive trays. Anti-static are cheaper, but I would like to know about properties of one against the other, what are var
Electronics Forum | Thu Jan 30 14:37:45 EST 2003 | davef
NASA-STD-8739.1 , Workmanship Standard for Staking and Conformal Coating of Printed Wiring Boards and Electronic Assemblies, says words to the effect of : 10.1 Purpose Conformal coatings are intended to provide electrical insulation and environmental
Electronics Forum | Wed Sep 09 10:02:46 EDT 1998 | Earl Moon
| | | I am in need of possible causes and solutions to capacitors that are failing in the field. | | | Are there issues in our process that need to be | | | checked? | | | Some people said the problems are due to improper | | | storage. Others sa
Electronics Forum | Mon May 24 12:54:25 EDT 2004 | pjc
Maybe here's an opportunity to get a new oven. Electrovert, BTU and Vitronics offer closed-loop N2 control as an option. This, together with other improvements on oven design can reduce N2 consumption by as much as 40%. Not to mention reductions in e
Electronics Forum | Sun Sep 17 21:05:24 EDT 2006 | kenneth_lee
Hi, CK, I am kenneth from SMT resources Pte Ltd. Our company sell Steacil Cleaner CONTEK - CT-2000,(Full preumatic). Advantages: -More safety compare with using Electric. -Very easy to use. -Lower prices with high performance. -Able to clean stenc
Electronics Forum | Wed Dec 09 10:02:10 EST 1998 | Earl Moon
| Does anybody out there have any special insights into utilizing no clean paste in high frequency RF applications? I would imagine there may be some issues with solder balls that would affect functional test (Earl, do you have something for me here?
