Fuzzy Multiple Performance Characteristics Index based optimization in TFTLCD short bar attach process

This paper proposes a fuzzy-MPCI (Multiple Performance Characteristics Index) method to solve the multiobjective optimization problem with regard to the ACF (Anisotropic Conductive Film) attach process for TFTLCD. As such, this paper's motivation is to decrease the usage of ACF materials in the ACF attach process. The experimental Taguchi method is used to find the optimal solution for this problem. This paper studies the optimization of yield rate and tact time with respect to the control factors of TFTLCD. In using the Taguchi method, three test cases are discussed: the first involves the optimal yield rate problem; the second, the optimal tact time problem; and the third, solving multiple problems by simultaneously considering yield rate and tact time. Experiment results are provided to verify the validity of the proposed fuzzy-MPCI method.