Patent ID: 11952661
Assignee: TOKYO ELECTRON LIMITED
Field: Surface technology, coating (Chemistry)
Classification: CPC C  H | IPC C  H

Claim 11:
12. The deposition method according to claim 10, wherein the rotary table is disposed in a processing chamber;
the processing chamber includes, above the rotary table, a chlorine radical adsorbing region capable of supplying the chlorine radicals onto the rotary table, a first purging region capable of supplying the purge gas onto the rotary table, a raw material gas adsorbing region capable of supplying the raw material gas onto the rotary table, a second purging region capable of supplying the purge gas onto the rotary table, and a nitridation region capable of supplying the activated nitride gas onto the rotary table;
the forming of the adsorption inhibiting region is performed by rotating the rotary table a first predetermined number of times, while the chlorine radicals are supplied in the chlorine radical adsorbing region and the purge gas is supplied in the first purging region and in the second purging region, and while the raw material gas and the activated nitride gas are not supplied in the raw material gas adsorbing region and the nitridation region respectively; and
the causing to adsorb the raw material gas and the depositing of the silicon nitride film are performed by rotating the rotary table a second predetermined number of times, while the chlorine radicals are supplied in the chlorine radical adsorbing region, the purge gas is supplied in the first purging region and in the second purging region, the raw material gas is supplied in the raw material gas adsorbing region, and the activated nitride gas is supplied in the nitridation region.