Patent ID: 6423144
Filing Date: 2002-07-23
Classification: B05C,H05K

Abstract:
A coating apparatus for coating a substrate, comprising:a nozzle, provided with a discharge port slit for applying a coating material onto the substrate; blocking means, movable in a coating width direction, to control a width of the discharge port slit of the nozzle, the blocking means comprising: a blocking plate, and a bar, connected to the plate, for moving the plate; and driving means, which includes moving means for moving the blocking means and a controller for controlling a moving distance of the blocking means, wherein the width of the discharge port slit is controlled by the lateral movement of the bar and the blocking plate of the blocking means, thereby blocking discharge of the coating material from the nozzle, and wherein, a cross section of said bar in a direction (X) substantially perpendicular to said moving direction has a distance A, and a cross section of an internal space of a manifold inside the nozzle in said direction (X) is a distance B, the value of A is less than or equal to one-half the value of B.