Patent ID: 6911088

Claim:
A substrate processing apparatus comprising: a holding table for holding a substrate; a bridging structure supporting a slit nozzle for discharging from a slit thereof a predetermined processing solution, said bridging structure being provided to span across a surface of said holding table; and a moving mechanism for moving said bridging structure along a surface of the substrate held by said holding table; said slit nozzle including a liquid feeding element provided in a gap in said slit nozzle and extending in a direction toward said slit and applying varying forces distributed along said direction, in a manner that causes said processing solution to form a wave oscillating in a direction substantially perpendicular to said direction toward said slit while traveling in said direction toward said slit, thereby feeding said processing solution in said direction toward said slit by using a wave characteristic of said wave; wherein while said bridging structure is moved along the surface of said substrate, said slit nozzle scans the surface of said substrate to form a layer of said processing solution on the surface of said substrate.