Patents Assigned to Nanoclean Technologies, Inc.
  • Patent number: 7297286
    Abstract: A method for manufacturing an article having polymeric residue that is to be removed during the manufacture of the article is disclosed. The article is introduced into a controlled environment of a processing tool having one or more processing chambers. Free radicals are generated from one or more reactant gases and introduced into at least one of the one or more processing chambers where they react with the polymeric residue. A cryogenic cleaning medium is supplied into at least one of the one or more processing chambers where the cryogenic cleaning medium removes the polymeric residue present after the free radicals react with the polymeric residue. The reactant gases are selected to facilitate removal of the polymeric residue with the cryogenic cleaning medium. The cryogenic cleaning medium is supplied with a pulsating flow via a nozzle implement that sweeps across the article.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: November 20, 2007
    Assignee: Nanoclean Technologies, Inc.
    Inventors: Adel George Tannous, Khalid Makhamreh
  • Patent number: 7134941
    Abstract: A method of plasma assisted CO2 cleaning for dry removal of residual photoresist and sidewall polymer with an etch gas mixture comprising fluorine containing gas, oxygen and hydrogen in N2 or H2O. The process removes polymer residues present on a metal layer on a substrate and on the sidewalls of metal lines and inhibits chlorine-based corrosion while being very selective to exposed Ti, TiN, Al and SiO2. The invention is particularly suited for removing post metal etch polymer residue from top and sidewall of metal lines.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: November 14, 2006
    Assignee: Nanoclean Technologies, Inc.
    Inventors: Mohamed Boumerzoug, Adel George Tannous
  • Patent number: 7101260
    Abstract: A method for manufacturing an article where the article has polymeric residue that is to be removed during the manufacture of the article. The article is introduced into a controlled environment of a processing tool that has at least first and second processing chambers. Free radicals are generated from one or more reactant gases and introduced into at least the first processing chamber where they react with the polymeric residue. A cryogenic cleaning medium is supplied into the second processing chamber where it removes the polymeric residue present after the free radicals react with the polymeric residue. The reactant gases are selected to facilitate removal of the polymeric residue with the cryogenic cleaning medium The first and second processing chambers may be dedicated to plasma processing or cryogenic processing or each may provide both plasma processing and cryogenic processing.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: September 5, 2006
    Assignee: Nanoclean Technologies, Inc.
    Inventors: Adel George Tannous, Khalid Makhamreh
  • Patent number: 7040961
    Abstract: A plasma assisted cryogenic cleaner for and a method of performing cleaning of a surface that must be substantially free of contaminants has a resiliently mounted nozzle for spraying a cryogenic cleaning medium on the surface. The cleaning is conducted by applying to the substrate surface a mixture of gases selected from the group consisting of oxygen, nitrogen, hydrogen, fluorine, hydrofluorocarbon or a mixture of such gases to both remove the photoresist layer and alter the composition of the residues such that the residues are soluble in water and/or have a weakened bonds that they can be removed with a stream of cryogenic medium. The cryogenic and plasma processes can be performed sequentially or simultaneously.
    Type: Grant
    Filed: July 19, 2004
    Date of Patent: May 9, 2006
    Assignee: Nanoclean Technologies, Inc.
    Inventors: Mohamed Boumerzoug, Adel George Tannous, Khalid Makhamreh
  • Patent number: 6945853
    Abstract: A cryogenic cleaner for and a method of performing cleaning of a surface that must be substantially free of contaminants utilizing a multi-stage, multi-mode filtered carbon dioxide-containing cleaning medium. Multiple stages and multiple types of filtration/purification are provided to remove contaminants such as hydrocarbons from the medium. In accordance with preferred embodiments, a filtering/purification process is provided that desirably utilizes one or more of: condensation of the hydrocarbon; particulate filtration; chemical filtration using activated filters; and catalytic oxidation. In certain embodiments, a resiliently mounted nozzle is provided for spraying a cryogenic cleaning medium on the surface. The nozzle may be driven in an oscillatory manner at a predetermined amplitude and frequency so the nozzle spray is delivered in a manner to provide pulsing of the spray and to provide as “snow plow” effect on contaminants as the spray delivers the cleaning medium against the surface.
    Type: Grant
    Filed: April 7, 2004
    Date of Patent: September 20, 2005
    Assignee: Nanoclean Technologies, Inc.
    Inventors: Goodarz Ahmadi, Paul E. Lewis, Adel George Tannous, Khalid Makhamreh
  • Patent number: 6764385
    Abstract: A plasma assisted cryogenic cleaner for and a method of performing cleaning of a surface that must be substantially free of contaminants has a resiliently mounted nozzle for spraying a cryogenic cleaning medium on the surface. The cleaning is conducted by applying to the substrate surface a mixture of gases selected from the group consisting of oxygen, nitrogen, hydrogen, fluorine, hydrofluorocarbon or a mixture of such gases to both remove the photoresist layer and alter the composition of the residues such that the residues are soluble in water and/or have a weakened bonds that they can be removed with a stream of cryogenic medium. The cryogenic and plasma processes can be performed sequentially or simultaneously.
    Type: Grant
    Filed: July 29, 2002
    Date of Patent: July 20, 2004
    Assignee: NanoClean Technologies, Inc.
    Inventors: Mohamed Boumerzoug, Adel George Tannous, Khalid Makhamreh
  • Patent number: 6719613
    Abstract: A cryogenic cleaner for and a method of performing cleaning of a surface that must be substantially free of contaminants utilizing a multi-stage, multi-mode filtered carbon dioxide-containing cleaning medium. Multiple stages and multiple types of filtration/purification are provided to remove contaminants such as hydrocarbons from the medium. In accordance with preferred embodiments, a filtering/purification process is provided that desirably utilizes one or more of: condensation of the hydrocarbon; particulate filtration; chemical filtration using activated filters; and catalytic oxidation. In certain embodiments, a resiliently mounted nozzle is provided for spraying a cryogenic cleaning medium on the surface. The nozzle may be driven in an oscillatory manner at a predetermined amplitude and frequency so the nozzle spray is delivered in a manner to provide pulsing of the spray and to provide as “snow plow” effect on contaminants as the spray delivers the cleaning medium against the surface.
    Type: Grant
    Filed: February 7, 2003
    Date of Patent: April 13, 2004
    Assignee: NanoClean Technologies, Inc.
    Inventors: Goodarz Ahmadi, Paul E. Lewis, Adel George Tannous, Khalid Makhamreh, Keith H. Compton
  • Patent number: 6530823
    Abstract: A cryogenic cleaner for and a method of performing cleaning of a surface that must be substantially free of contaminants has a resiliently mounted nozzle for spraying a cryogenic cleaning medium on the surface. The nozzle is driven in an oscillatory manner at a predetermined amplitude and frequency so the nozzle spray is delivered in a manner to provide pulsing of the spray and to provide as “snow plow” effect on contaminants as the spray delivers the cleaning medium against the surface. The surface is transported past the nozzle, and the cleaning occurs in an enclosed controlled environment.
    Type: Grant
    Filed: August 10, 2000
    Date of Patent: March 11, 2003
    Assignee: Nanoclean Technologies Inc
    Inventors: Goodarz Ahmadi, Paul E. Lewis, Adel George Tannous, Khalid Makhamreh, Keith H. Compton