Patent ID: 9470979
Filing Date: 2016-10-18
CPC Classification: G03F,H01L

Claim Text:
1. A developing treatment apparatus for performing development by supplying a developing solution to a substrate having a front surface coated with a positive resist or a negative resist and then subjected to exposure, the developing treatment apparatus comprising: a substrate holding part that horizontally holds the substrate; a rotary drive mechanism that rotates the substrate holding part around a vertical axis; a positive developing solution supply nozzle that supplies a developing solution for the positive resist to the front surface of the substrate held by the substrate holding part; a negative developing solution supply nozzle that supplies a developing solution for the negative resist to the front surface of the substrate held by the substrate holding part; a cup body that is formed in a bottomed circular shape with an upper side open and collects the developing solution scattering with rotation of the substrate; a first developing solution drain pipeline that is connected to an outer peripheral side of the cup body and drains one of the developing solutions for the positive resist and the negative resist collected by the cup body; a second developing solution drain pipeline that is connected to an inner peripheral side of the cup body and drains another of the developing solutions for the positive resist and the negative resist collected by the cup body; a fixed cup that has a peripheral wall between an inner peripheral wall of the cup body and an outer peripheral wall of the cup body and is formed on a lower side of the substrate held by the substrate holding part; and a first drain device that is provided on the first developing solution drain pipeline and a second drain device that is provided on the second developing solution drain pipeline, wherein the first drain device and the second drain device are configured to drain the one developing solution or the another developing solution by driving one of the first drain device and the second drain device.