Patent ID: 11881396
Assignee: TOKYO ELECTRON LIMITED
Field: Semiconductors (Electrical engineering)
Classification: CPC H  C | IPC C  H

Claim 0:
1. A deposition method of forming silicon oxide films collectively on a plurality of substrates in a processing container, the deposition method performing a plurality of execution cycles each of which includes:
supplying a silicon material gas containing an organoamino-functionalized oligosiloxane compound into the processing container adjusted to a pressure in a first range; and
supplying an oxidizing gas into the processing container adjusted to a pressure in a second range different from the first range, the second range being from 1.5 Torr to 10 Torr (200 Pa to 1333 Pa),
wherein the organoamino-functionalized oligosiloxane compound is 2-dimethylamino-2,4,6,8-tetramethylcyclotetrasiloxane, and the oxidizing gas is a mixture gas of O2 gas and O3 gas), and
wherein a length of oxidation time in the supplying of the oxidizing gas is set such that film thickness uniformity within each of the silicon oxide films is ±2% or less and such that film thickness uniformity between the silicon oxide films is ±3% or less.