• DC replied to the topic DOE Optimization Suggestions in the forum General 13 years ago

    Gary,Thanks, but my containment action is to dip the pins in masking and bake it before running the boards. The splashes never stick with the masking, so if I’m going to pursue EVOP, then I can’t insulate the customer.Your comments regarding understanding the physics of soldering are spot on, and I agree with Chad. This, however, has been no…[Read more]

  • DC replied to the topic Six sigma certification in the forum General 13 years ago

    Nice Chad, now just make a copy of this in word and you can post it every week when someone asks this question. Did you really type all that…do your fingers feel redundant?I’m personally starting to think that if you can’t even take the time to look for threads that answer these questions before posting it, then you probably don’t have the…[Read more]

  • Eric, While I see the merit in your thinking, I have but one recurring thought. In a mentor role, I think this approach would work great with BB’s candidates, but question the validity of your premise regarding GB candidates. BB candidates tend to be more self-motivated to handle the challenges and many failures it will take to tackle the LeanSS…[Read more]

  • DC replied to the topic SixSigma in the forum General 13 years ago

    Velcro works best, but doesn’t hold up well in extreme weather conditions. I would suggest a combination of duct tape and crazy glue to reinforce the velcro, possibly even investigate multiple methods and products to increase adherence. I would be sure to approach any experiments one factor at a time — what the heck, us taxpayers will cover the…[Read more]

  • DC replied to the topic DOE Optimization Suggestions in the forum General 13 years ago

    Gary, While I admittedly have a limited knowledge of EVOP, let me throw this out there. I have a containment process that eliminates these defects even though it negatively impacts cycle time and manufacturing costs. In using EVOP, wouldn’t I be opening up myself to possible customer defects and internally impacted DPMO metrics just to run this…[Read more]

  • DC replied to the topic DOE Optimization Suggestions in the forum General 13 years ago

    Chad, Great insight. I actually agree with you in your take, but one of my pre-treatments was baking to remove all moisture from the pwb. Of course, I’m then sending the board into a vapor, and as far as I can ascertain, these “mini-explosions” are typical in this process. You point is very well taken, however, I am thus far confined to the…[Read more]

  • DC replied to the topic DOE Optimization Suggestions in the forum General 13 years ago

    Okay, let the true debate begin!I have three options, although I admit that I’m a little frustrated with myself for not thinking of time between failures as an option for continuous output data.Here’s what I would like to see debated, keeping in mind that each failure is a defect that is scrap.What is the best way to handle this situation? By the…[Read more]

  • DC replied to the topic DOE Optimization Suggestions in the forum General 13 years ago

    Chad, a failure in this case is a solder splash. This is a vapor phase process. The previous DOE’s have been targeted at flux type, flux application, recipe optimization and pre-process treatments. The solder type itself cannot change (Sn37Pb63). These splashes are evident on gold pins which are being soldered through the pwb. Unfortunately,…[Read more]

  • DC replied to the topic Greenbelt Certification in the forum General 18 years, 4 months ago

    Dear Eds,
    I am currently going through GB training at my company.  I have a max. of 18 months to complete two 6 Sigma projects demonstrating my abilities to use the tools, save my company 100K, and pass a comprehensive exam.  Hope this helps.

  • I agree with Stan.  Even those with P.h.d’s in statisitcs should not claim they are Six Sigma Black Belts.  Any legitimate certifications require not only a firm knowledge of the statistics and project managment skills involved, but also the completion of a certain number of large projects using the Six Sigma methodology (and a large number of t…[Read more]

  • DC replied to the topic Black Belt sample test in the forum General 18 years, 11 months ago

    I sense a bit of bitterness.  I would imagine that stems from some sense of insecurity.  This is usually the result of some sort of inadequacy for which you are trying to compensate.  (possibly little personal success in Six Sigma?)  This is given greater credence from the fact that you hide behind names that give no hint of who you truly are…[Read more]

  • I have had companies as well as headhunters ask about certification.  I think it should be in addition to rather than instead of certification by your own company. 
    This is only because it is a standard body of knowledge from which everyone can benchmark.  There are many companies out there that are certifying Black Belts that probably really sh…[Read more]

  • I agree with the others in that you have a solution looking for a problem. Justifying training is a business issue, but not a six sigma problem per se.Metrics for training?Recommend researching Kirkpatric who basicly recommended four levels of evaluating training
    1) Reaction – Satisfaction ratings on feedback sheets using the Lykert scales.2)…[Read more]

  • This is a popular excel file!  Could I get a copy?
    [email protected]