Electronics Forum | Thu Apr 03 09:27:04 EST 2003 | davef
First, welcome to SMTnet. On your question, are you talking about control charts? If so, here's some background on control charts http://deming.eng.clemson.edu/pub/tutorials/qctools/ccmain1.htm What are you plotting: * Independant variables? * De
Electronics Forum | Sat Sep 29 09:19:28 EDT 2007 | davef
For people with a statistics background, using Minitab, SAS, Statgraphics, or Statistica is easy. However, for many others it is not so easy. Amoung, DOE software packages compatible with Microsoft Excel are: SPX XL [$250], DOE KISS [$150], DOE PRO
Electronics Forum | Wed Apr 28 12:18:04 EDT 1999 | Scott McKee
| Hello all, | | I read about Steve's headache a few articles back and I'm really interested by his tip. However, I'm still wondering why square apertures release solder paste better than round ones. For the same volume of paste, the surface area
Electronics Forum | Tue Sep 21 09:49:50 EDT 2004 | Pomponio Magnus
Has anyone ever seen the distributions that result when plotting percent voiding? (Typically a BGA will have enough balls that you can get oogles of data.) I have seen this and seem to be noticing a pattern. First, they are not all normal, so your
Electronics Forum | Wed Apr 28 11:16:45 EDT 1999 | Steve Gregory
Hello all, I read about Steve's headache a few articles back and I'm really interested by his tip. However, I'm still wondering why square apertures release solder paste better than round ones. For the same volume of paste, the surface area of th
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