Patent ID: 11919049
Assignee: SCREEN HOLDINGS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC B  H  G | IPC B  H

Claim 0:
1. A substrate processing method for removing an organic film on a substrate, the substrate processing method comprising:
a) carrying out introduction of ozone-containing gas into a substrate processing chamber to fill at least a space above said substrate in said substrate processing chamber with ozone-containing gas;
b) starting spraying through said space a heated chemical liquid containing sulfuric acid onto said substrate after said step a);
c) continuing said spraying started in said step b); and
d) stopping said spraying continued in said step c), wherein
said chemical liquid is sprayed from an atomization nozzle that faces an upper surface of said substrate in said step b), so said ozone is reacted with said sulfuric acid.