1. a Department of Industrial Engineering , Chung Yuan Christian University , 22 Pu-Jen, Pu-Chung Li, Chung-Li 32023, Taiwan, ROC
2. b Siliconware Precision Industries Co. Ltd , 123 Sec. 3, Da Fing Road, Tantzu, Taichung, ROC
3. c Taiwan Semiconductor Manufacturing Company , Hsin-Chu Science-Based Industrial Park , Hsin-Chu, Taiwan, ROC