In this paper the signal-to-noise ratio and impendence matching problems can be improved by integrating the micro array bio-sensing probes and a thin-film-transistor (TFT) amplifier for signal processing together, both of them are produced respectively on In this paper the signal-to-noise ratio and impendence matching problems can be improved by integrating the micro array bio-sensing probes and a thin-film-transistor (TFT) amplifier for signal processing together, both of them are produced respectively on