Biological neural network is a huge and complicated system, which comprises abundant highly organized and interactional neurons. The neuronal electrical activities in the neural network take on distinctive spatio-temporal characteristics. Investigating the electrophysiological properties of multi-neurons in cell-networks or tissues is sig-nificant for the study of information processing and conduction in neural networks. With the development of micro-electro-mechanical systems (MEMS) technology, mi-croelect...