Mathematical models of ink jet printing in thick-film hybrid microelectronics

Abstract Application of an ink jet printer with metallo-organic liquid inks has been demonstrated to be another alternative printing technology in thick-film hybrid microelectronics. In order to scientifically control the ink jet printing and the electrical parameters such as conductivity, resistivity, and dielectric constant of a printed circuit, mathematical theories of the impulse ink jet related to flow rate are derived from the Navier-Stokes equation. The theories include a mathematical model for flow rate and a model for the refilling mechanism. The theoretical predictions made by these models are found to agree with the experimental results.