School of Microelectronics, Shandong University, Jinan 250100, China;
School of Microelectronics, Shandong University, Jinan 250100, China;
School of Microelectronics, Shandong University, Jinan 250100, China;
School of Microelectronics, Shandong University, Jinan 250100, China;
National Key Laboratory of Application Specific Integrated Circuit(ASIC), Hebei Semiconductor Research Institute,Shijiazhuang 050051, China;