Patent ID: 8303723
Filing Date: 2012-11-06
Classification: H01L

Abstract:
1. A liquid processing method for removing a first film and a second film from a substrate including the first film that is dissolved by a first chemical liquid, and the second film formed above the first film, the liquid processing method comprising: supplying a second chemical liquid to the substrate for weakening a strength of the second film; stopping the supply of the second chemical liquid; thereafter, breaking the second film, the strength of which has been weakened, by giving a physical impact to the second film; removing the second film by means of a fluid, by supplying the fluid to the substrate so as to wash away debris of the second film to which the physical impact has been given; and dissolving and removing the first film by supplying the first chemical liquid to the substrate from which the second film has been removed and on which the first film has been retained, wherein each of the first chemical liquid and the second chemical liquid consists of an amine-based release agent and the fluid comprises a gas-liquid mixture.