Patent ID: 8562743
Filing Date: 2013-10-22
Classification: C23C

Abstract:
1. A high pressure processing system, comprising: a high pressure chamber which houses a substrate to be processed during a supercritical atomic layer deposition (ALD) procedure; a fluid introduction system including a first composition supply system; a second composition supply system, at least one high pressure fluid supply system including a supercritical fluid source; and a controller operatively coupled to the high pressure processing system, wherein the controller is configured to: direct the fluid introduction system to alternately and discontinuously introduce a first composition to the high pressure chamber from the first composition supply system during a first time interval and a third time interval, and introduce a second composition to the high pressure chamber from the second composition supply system during a second time interval and a fourth time interval during the supercritical ALD procedure, where the second time interval and the fourth time interval occur after the first time interval and the third time interval respectively, while processing the same substrate, direct the at least one high pressure fluid supply system to deliver a first supercritical fluid to the high pressure chamber during a plurality of purge cycles in the supercritical ALD procedure, effect a first purge cycle before the first time interval and a second purge cycle after the first time interval, and direct the high pressure fluid introduction system to include a second supercritical fluid and a film precursor in the first composition, and include a third supercritical fluid and a reducing agent in the second composition.