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  • #142644

    VP
    Member

    Hi Dee,
    If i’m not wrong, you can download some good calculators available for free on the net to understand the relationship b/w abandonment rate, AHT and Staffing. These calculators are based on the queue theories i guess…I dont really understand the objective behind the DOE that you’re talking about

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    #142334

    VP
    Member

    Hi Harsh
    As I look at your problem, I understand that your process defects are ‘Scraps’ and cause for the defect to occur is a ‘mis-run’ and factors or root causes for the cause or ‘mis-run’ to occur could be the variations in process parameters. Correct me if my understanding is incorrect.
    I see you’ve listed many parameters that would have influence over ‘mis-run’. When you’ve prepared this list, i’m sure you would have good knowledge over the process as well. Therefore, before jumping into statistical tools, sit down and do a logical analysis of what could be the effect of each those parameters on your process performance based on your technical knowledge. Think about what can really go wrong and to what extent in each of those parameters based on your current process controls  and instruments (system design). This would help screen those insignificant factors. If you do this exercise with real interest, most likely you would identify the root cause for your problem. If you still have not found it, then go for a statistical tool to understand better the relationship between your process parameters and output.
    regards
    VP

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    #134391

    VP
    Member

    pl send the pitch to [email protected]
     
    regards
    vp

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    #119656

    VP
    Member

    If you make million components(each component having one opportunity), only 3.4 components will be out of the tolerance window i.e., dimension greater than or less than 60microns from the target.
    Hope my understanding is correct and helpful to you
    vp

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    #118072

    VP
    Member

    Can you just collect more data and calculate the Z scores for the two cases and show the improvement?
    VP

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    #117507

    VP
    Member

    pl send a copy to [email protected]
    Thanks
    VP

    0
    #117414

    VP
    Member

    Answer for b) is it 0.57 or 0.538?
     
    vp

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Viewing 7 posts - 1 through 7 (of 7 total)