Design of Experiments

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  • #2383

    We use DOE for reducing the effects of uncontrollable factors. What happens in cases where conducting the experiments is much expensive. I know we can minimize the number of experiments, but in cases of semiconductor manufacturing, the cost of conducting even 2-3 experiments is like risking millions of dollars. What alternate options do we have?  Does anyone have a real-time scenario?

    #2388
    Li Gu
    Moderator

    There is a branch of DOE, Computer Experiments, which include huge literature talking about this since 1979. You may refer to “Computer Experiment” in wiki to get some ideas and references. The basic idea is first to fit a metamodel on few data points. Then, you experiments can be conducted on the metamodel instead of true experiments.

    #2982
    Huimin Ou
    Participant

    Fractional Factorial Design could reduce the experiment runs and save some cost. ISyE575 (Introduction to Quality Engineering) in UW-Madison is an online class that talks a lot about DOE.

    #3551
    Vy Nguyen
    Participant

    I agree with Huimin! I Sy E 575 has taught me a lot about DOE and different techniques on how to perform DOE efficiently

    #6639
    Katherine Schroeer
    Participant

    In ISYE 575, we talked about using a fractional factorial design when a full factorial design of experiments are too costly! The main idea is that the design evaluates only a subset of the possible permutations of factors and levels. This method would definitely be something to consider for it makes the experiments cheaper and faster to run.

    #7575
    Deepak
    Participant

    Taguchi’s L16 ORTHOGONAL array was used to plan, optimize, and analyze the data to find the parameters that produced the maximum tensile strength during a welding research study.

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