Patent ID: 11965244
Assignee: WONIK IPS CO., LTD
Field: Surface technology, coating (Chemistry)
Classification: CPC C  H | IPC C  H

Claim 19:
20. A semiconductor device manufacturing method, which does not include impurity concentration detection, the method comprising:
a deposition operation of forming a thin film on a surface; and
a substrate processing operation of improving thin-film properties after performing the deposition process,
wherein the substrate processing operation is performed at least one time, and
wherein the substrate processing operation is performed through a substrate processing method, the substrate processing method using a substrate processing apparatus which comprises a chamber configured to form a processing space for substrate processing, a substrate support installed in the chamber to support a substrate, a gas sprayer installed above the substrate support to spray a gas for performing processes, and a vent configured to vent a gas of the processing space and comprising a valve for controlling a pressure, wherein the chamber comprises: an outer tube which has a protection space formed therein and a first inlet formed in a lower portion thereof; and an inner tube which has the processing space formed therein and a second inlet formed in a lower portion thereof, wherein a portion of the inner tube is accommodated in the outer tube, and a portion of the inner tube, in which the second inlet is formed, protrudes to the outside of the outer tube,
wherein the substrate processing method comprises a pressure changing operation repeated at least one time,
wherein the pressure changing operation comprises:
a pressurizing operation of increasing an internal pressure of the inner tube from a first pressure to a second pressure higher than the atmospheric pressure, by injecting a process gas into the processing space; and
a depressurizing operation of decreasing the internal pressure of the inner tube from the second pressure to a third pressure,
wherein a process gas-supplying flow rate to the inner tube in the depressurizing operation is lower than a process gas-supplying flow rate to the inner tube in the pressurizing operation, and
the third pressure is equal to or less than the atmospheric pressure.