1. a Department of Materials Engineering , National Ping-Tung University of Science and Technology , No. 1, Syuefu Road, Neipu Township , Pingtung , 91201 , Taiwan
2. b General Education Center, Wenzao Ursuline College of Languages , Mitsu 1st Road, Kaohsiung , 807 , Taiwan
3. c Medical Devices and Opto-electronics Equipment Department , Metal Industries Research & Development Center , 3F, No. 88, Luke 5th Road, Lujhu Township , Kaohsiung , 82151 , Taiwan
4. d Testing Application Section , Burn-In & Testing Application Develop-ment Division , King Yuan Electronics Co., Ltd., No. 118, Chung-Hua Road, Miaoli , 350 , Taiwan