Simple self-selective method of velocity measurement for particles in impact-based deposition

A simple, low-cost technique for particles velocity measurement in the gas deposition method (CDM) is reported. The accuracy of the technique is deter mined only by the precision of measurements of geometrical sizes of deposit ed pattern. Self-selection of the particles with parameters acceptable for deposition occurs. Under typical deposition conditions the velocities about 200 m/s for ceramic particles and up to 650 m/s for metal ones were detect ed. The proposed technique allows in situ monitoring during deposition both by GDM and by other deposition methods. (C) 2000 American Vacuum Society. [S0734-2101(00)01502-5].