Patent ID: 11958087
Assignee: SCREEN HOLDINGS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC B  H | IPC B

Claim 0:
1. A substrate processing method comprising:
a sulfuric acid immersing step of immersing a plurality of substrates in a sulfuric acid-containing liquid within a sulfuric acid vessel;
a transporting step of taking out the substrates from the sulfuric acid vessel and transporting the substrates to an ozone gas treatment unit with the sulfuric acid-containing liquid adhering to the substrates; and
an ozone exposing step of exposing the substrates transported to the ozone gas treatment unit to an ozone-containing gas such that ozone contained in the ozone-containing gas is dissolved in the sulfuric acid-containing liquid adhering to the substrates so as to generate peroxodisulfuric acid in the adhering sulfuric acid-containing liquid.