Patent ID: 8765002

Claim:
A substrate processing method comprising: a chemical solution supply step of supplying a chemical solution containing an etching component and a thickening agent to a substrate held by a first substrate holding unit in a first processing chamber and allowing the substrate to hold the chemical solution to begin a reaction between the substrate and the chemical solution in the first processing chamber; a first transfer step after the chemical solution supply step is performed, comprising transferring each of a plurality of said substrates from the first processing chamber to a second processing chamber by a substrate transfer unit in a state in which the chemical solution is held on each of the plurality of substrates to continue said reaction, and allowing a second substrate holding unit to hold the plurality of substrates in the second processing chamber in a state in which the chemical solution is still held on each of the plurality of substrates; a reaction processing step in said second processing chamber of promoting said reaction between the substrates and the chemical solution, after the first transfer step is performed; and a second transfer step of transferring each of the plurality of substrates from the second processing chamber to a third processing chamber by the substrate transfer unit after the first transfer step is performed.