Patent ID: 7527692

Claim:
A processing apparatus which performs predetermined processing while supplying a processing liquid to a substrate, comprising: a substrate holder which holds said substrate; an ordinary fluid jet unit which injects drops of said processing liquid having first particle diameters toward said substrate; a fine fluid jet unit which injects drops of said processing liquid having fine particle diameters which are smaller than first particle diameters toward said substrate; a driving device which moves each one of said ordinary fluid jet unit and said fine fluid jet unit relative to said substrate which is held by said substrate holder; and a controller which adjusts the positions of each jet unit relative to said substrate and accordingly controls a feeding position of said drops, wherein said ordinary fluid jet unit comprises: a nozzle body which holds said processing liquid inside and which is capable of injecting drops of said processing liquid from an ordinary outlet which is formed at a tip of said nozzle body; and a pressure applying device which applies a pressure upon said processing liquid which is held in said nozzle body, and application of the pressure by said pressure applying device makes drops injected through said ordinary outlet, and said fine fluid jet unit comprises: a nozzle body which holds said processing liquid inside and which is capable of injecting drops of said processing liquid through a fine outlet which is smaller than said ordinary outlet; and an electrode which is disposed in contact with said processing liquid which is held within said nozzle body, and a voltage is applied upon said electrode with said fine outlet positioned near said substrate, a local electric field is generated in the vicinity of said fine outlet, said processing liquid near said fine outlet is charged, and thus charged drops of said processing liquid are injected through said fine outlet.