Comparison of Electric Resistivity of the Thermal Curing Conductive Inks

Compared with the expensive traditional semiconductor processes such as the photolithography, the adhesion at high-degree vacuum, the conductive ink printing process have merits to minimize the process and toxic waste, manufacturing time. By developing the ink with the various material, the inkjet printing process for orgranic light emitting diode, liquid crystal display color filter production has been actively studied. Conductive inks are used when making electron devices by inkjet printing. Especially, the curing methods are required for improving of electrical conductivity to use metal nanoparticle ink. However, the parameters to improve the conductivity of the ink are dependent on the curing method. In this study, the variation of the resistivity by the temperature and time of the curing are evaluated in performing a furnace curing method. And the variation of the resistivity by the intensity change of laser beam and the exposure time are evaluated with performance of a laser curing method. Consequently, the laser curing method achieved similar resistivity of the ink from the furnace curing method