Apparatus and method for deposition of thin films
An apparatus for forming a multicomponent thin film, such as a superconducting thin film, on a substrate includes a holder for holding at least one substrate and a deposition/reaction vessel. The deposition/reaction vessel has at least three zones, each zone being separated from adjacent zones by a wall. The zones include at least two deposition zones, where each deposition zone is configured and arranged to deposit a deposition material on the at least one substrate, and at least one reaction zone for reacting the deposition material with a reactant. The apparatus is configured and arranged to rotate the at least one substrate sequentially through the plurality of zones to form a thin film on the substrate. In some embodiments of the apparatus, the deposition/reaction vessel includes a same number of deposition zones and reaction zones which may be alternating deposition and reaction zones.
1. A method of forming a layer on a substrate, comprising: disposing the substrate in a holder and disposing the holder in a deposition/reaction vessel comprising a plurality of zones, each zone being separated from adjacent zones by a wall, wherein the walls separating the plurality zones are connected, the plurality of zones comprising at least two deposition zones and at least one reaction zone; heating the substrate with a heater located proximate the substrate; repeatedly rotating the substrate through the plurality of zones; depositing, in each deposition zone, a deposition material on the substrate; and reacting, in each reaction zone, the deposition material on the substrate with a reactant.
2. The method of claim 1 , wherein disposing the substrate in a holder comprises disposing a substrate in a holder and disposing the holder in a deposition/reaction vessel comprising a plurality of zones, each zone being separated from adjacent zones by a wall, the plurality of zones comprising a same number of alternating deposition zones and reaction zones.
3. The method of claim 1 , wherein depositing a deposition material comprises depositing a different deposition material on the substrate in each deposition zone.
4. The method of claim 1 , wherein reacting the deposition material comprises oxidizing the deposition material.
5. The method of claim 1 , wherein reacting the deposition material comprises reacting the deposition material with a reactant to form a superconductor material.