Patent ID: 8833921
Filing Date: 2014-09-16
Classification: B41J

Abstract:
1. A thin-film forming apparatus for forming a thin film on a substrate with an ink jet method, the thin-film forming apparatus comprising: an ink applying unit suitable for applying an ink drop to a predetermined area on a front surface of the substrate; and a laser-light irradiating unit suitable for irradiating a first spot on a back side of the substrate with a laser light from the back side of the substrate, the first spot corresponding to the predetermined area to which the ink drop has been applied, thereby heating the ink drop, wherein the substrate comprises an electrode layer comprising a metal material on the front surface of the substrate, the predetermined area is on or above the electrode layer, the ink drop is a drop of a solution comprising a ferroelectric material, and the laser light has a wavelength having a high coefficient of absorption by the substrate or the electrode layer.