Finely textured structures on a silicon surface were fabricated to act as field emitters via simple sandblasting using fine Al₂O₃ particles. Tests confirmed that the finely nicked structures function well as efficient field emitters. The emission current obeys the Fowler-Nordheim relationship, with a low electric field threshold. The fluctuation of the emission current was inversely proportional to the square root of the average emission current, and the long-term drift of the emission current was about 1% per hour at the average emission current of 108µA in the pressure range of 10^-5Pa, indicating that the emitter offers a stable current output.