1. School of Materials and Mineral Resources Engineering Engineering Campus Universiti Sains Malaysia Nibong Tebal Pulau Pinang 14300 Malaysia
2. Collaborative Microelectronic Design Excellence Centre (CEDEC) Sains @ USM level 1, Block C, No. 10, Persiaran Bukit Jambul Bayan Lepas Pulau Pinang 11900 Malaysia
3. School of Materials Science Japan Advanced Institute of Science and Technology 1‐1 Asahidai, Nomi Ishikawa 923‐1292 Japan