Patent ID: 11887868
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  B | IPC B  H

Claim 13:
14. A method of processing a substrate, the method comprising:
cleaning the substrate; and
loading the substrate into a processing space of a drying chamber and drying the substrate;
wherein the drying chamber comprises:
a vessel comprising the processing space configured to process the substrate, wherein the vessel comprises an upper vessel and a lower vessel coupled to each other so as to be openable and closable to switch between a closed position to seal the processing space and an open position to open the processing space, wherein a first inner surface of the upper vessel and a second inner surface of the lower vessel are configured to define the processing space;
a first supply port in the upper vessel configured to supply a first supercritical fluid into the vessel;
an exhaust port in the lower vessel configured to discharge a fluid from inside the vessel;
a substrate support configured to support the substrate loaded in the processing space, wherein the substrate support is coupled to the upper vessel; and
a barrier coupled to the upper vessel to surround an edge of the substrate supported by the substrate support, wherein an upper end of the barrier is directly connected to the first inner surface of the upper vessel and is closed by the first inner surface of the upper vessel, and a side wall of the barrier surrounds the substrate and the substrate support,
wherein the barrier extends downward from the upper vessel to a point lower than the substrate supported by the substrate support and is configured to:
block the first supercritical fluid supplied from the first supply port from flowing directly to a contact portion between the upper vessel and the lower vessel, and cause the first supercritical fluid to flow downwardly toward a bottom portion of the second inner surface of the lower vessel; and
guide fluid flowing from the contact portion between the upper vessel and the lower vessel downward to the point lower than the substrate supported by the substrate support in a region between a side wall of the vessel and the barrier, and cause the guided fluid to flow downwardly toward the bottom portion of the second inner surface of the lower vessel,
wherein the drying chamber further comprises a first guide pin connected to a side wall of the lower vessel, and
wherein the first guide pin is configured to guide the barrier to be positioned in at a predetermined position in the processing space such that the first guide pin is in contact with the barrier.