Patent ID: 8882915
Filing Date: 2014-11-11
Classification: C23C,H01L

Abstract:
1. A film deposition apparatus for depositing a film on a substrate by relatively rotating a table on which the substrate is placed and plural reaction gas supplying portions configured to supply corresponding reaction gases that react with one another in order to supply in turn the reaction gases to the substrate, thereby producing a layer of a reaction product, the film deposition apparatus comprising: a substrate receiving area provided to place the substrate on an upper surface of the table in a vacuum chamber; a rotational mechanism configured to rotate the plural reaction gas supplying portions and the table in relation to each other so that the substrate is located in turn in plural process areas where the corresponding reaction gases are supplied from the corresponding gas supplying portions; a first reaction gas supplying portion configured to supply a first reaction gas in order to adsorb the first reaction gas on the substrate, wherein the first reaction gas supplying portion opposes the substrate receiving area on the table; an auxiliary gas supplying portion configured to supply to the substrate an auxiliary gas that reacts with the first reaction gas adsorbed on the substrate to produce an intermediate product having reflowability, wherein the auxiliary gas supplying portion is provided away from and downstream relative to the first reaction gas supplying portion along a relative rotation direction of the table in relation to the plural reaction gas supplying portions, and opposes the substrate receiving area on the table; a second reaction gas supplying portion configured to supply to the substrate a second reaction gas that reacts with the intermediate product on the substrate to produce a reaction product, wherein the second reaction gas supplying portion is provided downstream relative to the auxiliary gas supplying portion along the relative rotation direction, and opposes the substrate receiving area on the table; a first separation gas supplying portion in a first separation areas provided between a first process area where the first reaction gas is supplied and an auxiliary process area where the auxiliary gas is supplied, in order to separate atmospheres of the first process area and the auxiliary process area; a second separation gas supplying portion in a second separation area provided between a second process area where the second reaction gas is supplied and the first process area in order to separate atmospheres of the second process area and the first process area, wherein each of the first and second separation areas includes a convex portion whose lower surface provides a first ceiling surface lower than the second ceiling surface of the first process area, the auxiliary process area and the second process area in order to separate the atmospheres of the first, auxiliary, and second process areas, the convex portion providing the first ceiling surface in the first and second separation areas having a greater width on an upstream side along a circumference of the first ceiling surface; and a heating portion configured to heat the substrate in order to densify the reaction product, wherein the heating portion is provided downstream relative to the second gas supplying portion and upstream relative to the first reaction gas supplying portion along the relative rotation direction, and opposes the substrate receiving area on the table, wherein the second separation gas supplying portion in the second separation area cools the substrate by a gas supplied from the second separation gas supplying portion.