Enhanced wafer cleaning method
AssigneeLam Research Corporation
InventorsSeokmin Yun, John Boyd, Mark Wilcoxson
Life of this patent
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Abstract
A method for removing post-processing residues in a single wafer cleaning system is provided. The method initiates with providing a first heated fluid to a proximity head disposed over a substrate. Then, a meniscus of the first fluid is generated between a surface of the substrate and an opposing surface of the proximity head. The substrate is linearly moved under the proximity head. A single wafer cleaning system is also provided.
Claims20
A method for removing post processing residues in a single wafer cleaning system, comprising:
- providing a first fluid to a proximity head disposed over a substrate;
- heating the first fluid;
- generating a meniscus of the first fluid between a surface of the substrate and an opposing surface of the proximity head, and
- linearly moving the substrate under the proximity head.
A method for removing post etch residues in a single wafer cleaning system, comprising method operation of:
- providing a fluid to a proximity head disposed over a substrate;
- heating the fluid;
- generating a meniscus of the fluid between a surface of the substrate and an opposing surface of the proximity head;
- maintaining a substantially constant residence time of less than 30 seconds for the fluid over the surface of the substrate.
A single wafer cleaning system, comprising:
- a fluid source;
- a proximity head operably connected to the fluid source;
- a substrate support configured to support a substrate disposed thereon, the substrate support capable of moving under the proximity head to form a meniscus of fluid from the fluid source between opposing surfaces of the proximity head and the substrate;
- and
- a controller in communication with the substrate support, the controller defining a residence time of the meniscus of the fluid over the surface of the substrate through movement of the substrate support.
Dependencies are inferred from the claim text.