| abstract |
A method of manufacturing a semiconductor device, includes: forming a film on a substrate by performing a cycle a predetermined number of times, the cycle including: supplying two or more kinds of halogen-based precursors having the same major elements and different halogen elements, or different major elements and the same halogen elements, or different major elements and different halogen elements to the substrate while overlapping at least portions of supply periods of the two or more kinds of halogen-based precursors; and supplying a reactant having a chemical structure different from chemical structures of the two or more kinds of halogen-based precursors to the substrate. |