Patent ID: 8795541

Claim:
A supercritical fluid method for manufacturing a semiconductor device, comprising: loading a semiconductor substrate having a material layer formed thereon into a process chamber; supplying a supercritical fluid into the process chamber; performing at least one of an etching process, a cleaning process and a drying process in the process chamber; discharging the supercritical fluid from the process chamber during a supercritical fluid process; and detecting a concentration of a target material included in the supercritical fluid discharged from the process chamber during the supercritical fluid process, wherein detecting the concentration of the target material comprises: heating the supercritical fluid discharged from the process chamber to maintain the supercritical fluid in a gas phase; and detecting the concentration of the target material in the gas phase included in the supercritical fluid discharged from the process chamber, wherein the at least one of the etching process, the cleaning process and the drying process is performed using the supercritical fluid supplied into the process chamber.