Patent ID: 6872256

Claim:
A film forming unit for discharging a coating solution from a coating solution discharge nozzle toward a substrate to form a layer on a surface of the substrate, comprising: a press type pump including a pump body for sending said coating solution to said coating solution discharge nozzle, and a press member for pressing the pump body, the coating solution being sent into the pump body from the upstream by pulling the press member, the coating solution being sent from the pump body toward the downstream by pressing the press member, the amount of coating solution sent toward the downstream being adjusted by the amount of press of the press member, a pressure detector for detecting pressure in a flow path for the coating solution between said press type pump and said coating solution discharge nozzle; and a pressure controller for controlling the amount of press of the press member of said press type pump based on a detected value from said pressure detector; the amount of press of the press member of said press type pump being controlled based on the pressure in the flow path for the coating solution between said press type pump and said coating solution discharge nozzle, to control the amount of discharge of the coating solution to be supplied from said coating solution discharge nozzle toward the surface of the substrate; a transferring mechanism for transferring said coating solution discharge nozzle with respect to the substrate; and a transferring controller for controlling said transferring mechanism so as to move said nozzle along a continuous path being able o cover a surface of the substrate.