Patent ID: 11869768
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 11:
12. A method of forming a thin film of transition metal dichalcogenide, the method comprising:
providing a substrate in a reaction chamber;
depositing a transition metal dichalcogenide thin film on the substrate using a physical vapor deposition process that uses a transition metal precursor and a chalcogen precursor and is performed at a first temperature; and
injecting the chalcogen precursor in a gas state and heat-treating the transition metal dichalcogenide thin film at a second temperature that is higher than the first temperature,
wherein the first temperature is about 500° C. to about 800° C. and the second temperature is about 800° C. to about 1200° C., and
wherein a process pressure for the heat-treating the transition metal dichalcogenide thin film is about 1 torr to about 10 torr, and a deposition pressure for the depositing the transition metal dichalcogenide thin film is about 0.1 mTorr to about 10 mTorr.