Patent ID: 7497908

Claim:
A film coating unit for forming a coating film on a surface of a substrate, comprising: a substrate holder for holding the substrate horizontally, a coating solution discharge nozzle for applying coating solution to the surface of the substrate held by the substrate holder in a direction from a front edge toward a rear edge of the substrate, a driving section for relatively moving the substrate holder in a forward and backward direction with respect to the coating solution discharge nozzle, an anti-drying board opposed to the surface of the substrate in parallel relation thereto, the anti-drying board being disposed so as to cover an entire range of the surface of the substrate to which the coating solution is applied by the coating solution discharge nozzle, a height adjustment mechanism for adjusting a relative height of the anti-drying board with respect to the substrate, and a microprocessor including a memory for storing data which relates a kind of the coating solution to the relative height of the anti-drying board with respect to the substrate, the microprocessor reading a relative height data corresponding to a kind of a selected coating solution from the memory to output control signals to control the height adjustment mechanism.