Patent ID: 6932868

Claim:
The coating film forming apparatus comprising: a substrate holding portion holding a substrate; a nozzle portion feeding coating liquid to the substrate held by the substrate holding portion via a discharge opening formed at a tip; a coating liquid feed path feeding coating liquid to the nozzle portion; a channel connecting the discharge opening and the coating liquid feed path in said nozzle portion and having a section larger in diameter than the discharge opening; a pressure loss portion causing pressure loss in the coating liquid flowing through the channel; a first driving portion moving said nozzle portion in a first direction along a substrate surface; and a second driving portion intermittently moving said nozzle portion relative to the substrate in a second direction crossing said first direction, said nozzle portion being moved in the first direction to apply the coating liquid linearly on the substrate surface, said nozzle portion and substrate being intermittently moved relative to the substrate such that the linear coated regions are lined up in the second direction, wherein said pressure loss portion is a filtering member provided within said channel.