Patent ID: 7393413

Claim:
A coating apparatus comprising: a base; a substrate support stage unit mounted on the base and capable of fixedly supporting a substrate; a coating unit mounted on the base and capable of discharging a coating material onto a substrate fixedly supported on the substrate support stage unit; and a motor unit for driving at least either of the substrate support stage unit or the coating unit for sliding on the base; wherein the motor unit includes a plurality of magnets linearly arranged such that opposite magnetic polarities of the magnets alternately change, and a pair of magnet holding members for linearly pressing the magnets together from both the ends of the magnets, and wherein the motor unit includes a stator assembly fixedly mounted on the base, and a slide assembly that slides in opposite directions along the stator assembly, and the plurality of magnets are included in the stator assembly, the slide assembly is fixed to a center portion of the substrate support stage unit or the coating unit, and has a through hole through which the plurality of magnets pass, a pair of guide members are provided at both side edges of the substrate support stage unit or the coating unit, each positioned on the both sides with respect to the slide assembly, and a pair of guide supporting supports, which support the corresponding guide members, provided on the base.