Abstract: A liquid delivery MOCVD method for deposition of dielectric materials such as (Ba,Sr) titanates and (Zr,Sn) titanates, in which metal source compounds are dissolved or suspended in solvent and flash vaporized at temperatures of from about 100° C. to about 300° C. and carried via a carrier gas such as argon, nitrogen, helium, ammonia or the like, into a chemical vapor deposition reactor wherein the precursor vapor is mixed with an oxidizing co-reactant gas such as oxygen, ozone, N2O, etc., to deposit the high dielectric metal oxide film on the substrate at a temperature of from about 400° C. to about 1200° C. at a chemical vapor deposition chamber pressure of from about 0.1 torr to about 760 torr. Such process may for example be employed to form a (Ba,Sr) titanate dielectric material wherein at least 60 atomic % of the total metal content of the oxide is titanium.
Type:
Grant
Filed:
December 18, 1998
Date of Patent:
August 21, 2001
Assignee:
Advanced Technology Materials, Inc.
Inventors:
Gregory T. Stauf, Jeffrey F. Roeder, Thomas H. Baum
Abstract: An apparatus and method are provided for treating pollutants in a gaseous stream. The apparatus comprises tubular inlets for mixing a gas stream with other oxidative and inert gases for mixture within a reaction chamber. The reaction chamber is heated by heating elements and has orifices through which cool or heated air enters into the central reaction chamber. A process is also provided whereby additional gases are added to the gaseous stream preferably within the temperature range of 650 C.-950° C. which minimizes or alleviates the production of NOx.
Type:
Grant
Filed:
April 20, 1999
Date of Patent:
July 17, 2001
Assignee:
Advanced Technology Materials, Inc.
Inventors:
Timothy L. Herman, Jack Ellis, Floris Y. Tsang, Daniel O. Clark, Belynda Flippo, David Inori, Keith Kaarup, Mark Morgenlaender, Aaron Mao