Patent ID: 9273395
Filing Date: 2016-03-01
CPC Classification: C23C

Claim Text:
1. A method of treating one or more substrates comprising: (a) rotating a holder carrying the substrates about an axis while maintaining surfaces of the substrates substantially perpendicular to the axis and facing in an upstream direction along the axis; and, during the rotating step, (b) discharging a first gas in the downstream direction toward the substrates as a first gas stream extending across the axis in a first radial direction perpendicular to the axis and as a second gas stream extending perpendicular to the axis in a second radial direction perpendicular to the first radial direction; (c) simultaneously discharging a second gas in the downstream direction toward the substrates as third gas streams disposed around the axis between the first and second gas streams; and (d) discharging the second gas in the downstream direction toward the substrates from a center inlet disposed substantially on the axis.