Patent ID: 11890639
Assignee: SEMES CO., LTD.
Field: Surface technology, coating (Chemistry)
Classification: CPC B  H | IPC B

Claim 0:
1. An apparatus for treating a substrate, the apparatus comprising:
a process chamber having a treatment space defined therein;
a support plate for supporting the substrate in the treatment space;
a fluid supply conduit for supplying supercritical fluid to the treatment space;
a controller configured to control the fluid supply conduit,
wherein the fluid supply conduit is configured to selectively supply the supercritical fluid at a first density or a second density higher than the first density into the treatment space;

a reservoir for containing the supercritical fluid;
a supply line for supplying the supercritical fluid contained in the reservoir to the treatment space;
a first heater installed at the supply line and located downstream of the reservoir;
a bypass line connected to the supply line and configured to bypass the first heater, the bypass line being connected to a main supply line at a first point and a second point; and
an adjustment valve configured to allow the supercritical fluid to flow in a selected direction among a direction toward the bypass line and a direction toward the first heater,
wherein the first point is located at upstream of the main supply line than the first heater,
wherein the second point is located at downstream of the main supply line than the first heater, and
wherein the first heater is located in the main supply line between the first point and the second point,
wherein another heater is not installed on the bypass line.