Limits to feature size and resolution in ink jet printing

摘要: Ink jet printing is an attractive route for the manufacture of small ceramic parts and MEMS components. The attainable feature size a component fabricated in this fashion determined by both generated droplet how interacts with substrate. Here we present study impingement coalescence drops to form beads, linear deposits after subsequent phase change. Experimentally, it found that there minimum width deposit produced way dependent upon surface energy interaction between A simple geometric model presented can accurately predict onset limitation changing separation at given separation. bulging instability also explained terms competing pressure-driven axial flow spreading driven capillarity. deposited nanoparticulate ink was agree qualitatively previous observations, being reduced increasing print-head traverse velocity. solution-based did not observations; evaporation solvent as formed.