Patent ID: 7381449
Filing Date: 2008-06-03
Classification: B41J,H01J,H01L,H05K

Abstract:
1. A method of coating a base substrate with a liquid material using an ejection device provided with an ejection head including a plurality of nozzles arranged in an X-axis direction and a stage, the method comprising: (A) setting the base substrate including a part to be ejected with the liquid material on the stage; (B) changing a relative position of the ejection head with respect to the stage to a first direction that is substantially orthogonal to the X-axis direction while maintaining a relative x-coordinate of the ejection head with respect to the stage to a first relative x-coordinate; (C) ejecting the liquid material from a first nozzle to the part to be ejected upon positioning the first nozzle among the plurality of nozzles at a region corresponding to the part to be ejected; (D) changing the relative position of the ejection head with respect to the stage to the X-axis direction such that the relative x-coordinate of the ejection head with respect to the stage coincides with a second relative x-coordinate; (E) changing the relative position of the ejection head with respect to the stage to an opposite direction of the first direction while maintaining the relative x-coordinate of the ejection head with respect to the stage to the second relative x-coordinate; (F) ejecting the liquid material from a second nozzle to the part to be ejected upon positioning the second nozzle among the plurality of nozzles at the region corresponding to the part to be ejected; (G) removing the base substrate from the stage after step (F); (H) setting a second base substrate on the stage, the second base substrate including a second part to be ejected with the liquid material; (I) changing the relative position of the ejection head with respect to the stage to the first direction while maintaining the relative x-coordinate of the ejection head with respect to the stage to the second relative x-coordinate; (J) ejecting the liquid material from a third nozzle to the part to be ejected upon positioning the third nozzle among the plurality of nozzles at a region corresponding to the second part to be ejected; (K) changing the relative position of the ejection head with respect to the stage to the X-axis direction such that the relative x-coordinate of the ejection head with respect to the stage coincides with the first relative x-coordinate; (L) changing the relative position of the ejection head with respect to the stage to the opposite direction while maintaining the relative x-coordinate of the ejection head with respect to the stage to the first relative x-coordinate; and (M) ejecting the liquid material from a fourth nozzle to the part to be ejected upon positioning the fourth nozzle among the plurality of nozzles at the region corresponding to the second part to be ejected.