Patent ID: 6972055

Claim:
An atomic layer deposition system comprising: a) a deposition chamber; b) a first reaction chamber being positioned in the deposition chamber, the first reaction chamber comprising solid walls that contain a first reactant species and a seal comprising at least one of a sliding seal and a corrugated seal that prevents the first reactant species from escaping, a monolayer of the first reactant species being deposited on a substrate passing through the first reaction chamber; c) a second reaction chamber being positioned in the deposition chamber, the second reaction chamber comprising solid walls that contain a second reactant species and a seal comprising at least one of a sliding seal and a corrugated seal that prevents the second reactant species from escaping, a monolayer of the second reactant species being deposited on a substrate passing through the second reaction chamber; d) a vacuum pump having an input that is in vacuum communication with a region between the first and the second reaction chambers, the vacuum pump reducing pressure inside the region between the first and the second reaction chambers to a pressure that is less than a pressure inside the first and the second reaction chamber; and e) a transprot mechanism that transports a substrate in a path through the first reaction chamber and through the second reaction chamber at a constant transport rate, thereby depositing a film on the substrate by atomic layer depositon.