Kang Hee-Jae | Department of Physics, Chungbuk National University, Cheongju, Chungbuk 361-763, Korea

Analysis Team Memory R&d Division Hynix Semiconductor Inc.

Department Of Agronomy Kangwan National University

Analysis Team Memory R&d Division Hynix Semiconductor Inc.

Department Of Semiconductor Engineering Chungbuk National University

Department Of Semiconductor Engineering Cbnu

Department Of Physics Chungbuk National University

Division Of Electronic Communication And Electrical Engineering Yesou National University

Division Of Electronic Communication And Electrical Engineering Yesou National University

Department of Semiconductor Engineering, Chungbuk National University, Cheongju, Chungbuk 361-763, Korea

Division of Electronic Communication and Electrical Engineering, Yesou National University, Yeosu, Jeollanam 550-749, Korea