Electronics Forum: chart (Page 5 of 33)

Profiling board

Electronics Forum | Mon May 27 11:57:37 EDT 2002 | arcandspark

One thing you should do is characterize your reflow oven, run profile boards of various densities, say 2 gm/sq.in. to 10 gm/sq.in. Adjust the oven settings for these various boards to acheive your standard profile based on your solder paste manufactu

50 PPM

Electronics Forum | Wed Sep 04 14:33:26 EDT 2002 | slthomas

We fondly refer to those charts as "wall art".

AOI, Pre or Post Reflow?

Electronics Forum | Sun Mar 09 15:45:52 EST 2003 | davef

So, where do your parento charts indicate the largest problem?

SMT Production

Electronics Forum | Tue Sep 07 09:57:08 EDT 2004 | russ

X bar R charting would probably be your best bet for this. Russ

What is delta t?

Electronics Forum | Thu Oct 25 16:20:18 EDT 2007 | chineechooze

I can provide you with a Dundas chart to tell you delta Tea.

QFP wetting

Electronics Forum | Mon Nov 12 10:57:23 EST 2007 | chineechooze

i will supply dah 3d chart to sol the problem foryou

Who Performs SPC in your Facility?

Electronics Forum | Thu Jun 26 07:32:05 EDT 2008 | davef

Our operators enter and assess data into charts with limits determined by QA stats-types.

Mass defect criterion

Electronics Forum | Fri Dec 13 10:10:45 EST 2019 | davef

Thanks, Pavel There are lots of explanations of how to use AQL Charts and Sampling Plans on the web.

What is the naming conventions for SMT Packages?

Electronics Forum | Thu Sep 23 18:58:08 EDT 2021 | billmeye

No, found it somewhere on the Web but it is a great chart for starters.


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