Patent ID: 11908680
Assignee: TOKYO ELECTRON LIMITED
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 4:
5. The substrate processing method of claim 4,
wherein when a discharge angle of the rinse liquid from the nozzle is defined as an angle of a flow line of the rinse liquid connecting a liquid landing point of the rinse liquid discharged from the nozzle on the substrate and a discharge opening of the nozzle with respect to a reference line connecting the liquid landing point and a center of the substrate when viewed from a top, and
the washing away of the etching residue generated in the partially etching of the metal polycrystalline film or the washing away of the etching residue generated in the etching of the remaining portion of the metal polycrystalline film includes, while discharging the rinse liquid from the nozzle, moving the nozzle from the outside of the substrate toward the center side of the substrate beyond the edge of the substrate and increasing the discharge angle after the nozzle crosses the edge of the substrate.