Patent ID: 9443712
Filing Date: 2016-09-13
CPC Classification: B08B,H01L

Claim Text:
1. A method for cleaning a substrate, comprising: supplying a treatment solution which includes a volatile component onto a front surface of a substrate in an amount sufficient such that the treatment solution covers an entire portion of the front surface of the substrate and spills over onto a back surface from a periphery of the substrate; solidifying or curing the treatment solution through vaporization of the volatile component of the treatment solution such that a treatment film is formed on the entire portion of the front surface of the substrate and a peripheral portion of the back surface of the substrate; supplying to the peripheral portion of the back surface of the substrate a first removal solution which removes the treatment film in an amount sufficient such that the first removal solution removes part of the treatment film formed on the peripheral portion of the back surface of the substrate and on a peripheral portion of the front surface of the substrate; treating the back surface of the substrate while the entire portion of the front surface of the substrate is covered with the treatment film; and supplying to the substrate a second removal solution which removes the treatment film in an amount sufficient such that the second removal solution removes the treatment film substantially from the entire portion of the front surface of the substrate after the treating of the back surface of the substrate is finished.