Patents by Inventor Roberto John Rovito

Roberto John Rovito has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8772214
    Abstract: A composition and method for removing residues such as, without limitation, post etched and/or post ashed photoresist, plasma etching, ashing, and mixtures thereof from a substrate is described herein. In one aspect, there is provided a method for removing residues from a substrate comprising: contacting the substrate with a composition comprising: water; a quaternary ammonium hydroxide compound; a fluoride containing compound; and optionally a corrosion inhibitor wherein the composition is free of an added organic solvent and wherein the composition has a pH greater than 9.
    Type: Grant
    Filed: October 14, 2005
    Date of Patent: July 8, 2014
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Aiping Wu, Roberto John Rovito
  • Patent number: 7888302
    Abstract: A composition and method comprising same for selectively removing residues such as, for example, ashed photoresist and/or processing residues are disclosed herein. In one aspect, there is provided a composition for removing residue wherein the composition has a pH ranging from about 2 to about 9 comprising: a buffer solution comprising an organic acid and a conjugate base of the organic acid in a molar ratio of acid to base ranging from 10:1 to 1:10; a fluoride, and water, provided that the composition is substantially free of an added organic solvent. In another aspect, the composition may further comprise a corrosion inhibitor and/or a surfactant.
    Type: Grant
    Filed: December 19, 2005
    Date of Patent: February 15, 2011
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Aiping Wu, Roberto John Rovito
  • Patent number: 7879782
    Abstract: An aqueous-based composition and method comprising same for removing residues such as without limitation post-ashed and/or post-etched photoresist from a substrate is described herein. In one aspect, there is provided a composition for removing residues comprising: water; at least one selected from a hydroxylamine, a hydroxylamine salt compound, and mixtures thereof; and a corrosion inhibitor wherein the composition is substantially free of an added organic solvent and provided that the corrosion inhibitor does not contain a water soluble organic acid.
    Type: Grant
    Filed: October 13, 2005
    Date of Patent: February 1, 2011
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Aiping Wu, Roberto John Rovito
  • Patent number: 7682458
    Abstract: A composition and method comprising same for selectively removing residues such as, for example, ashed photoresist and/or processing residues are disclosed herein. In one aspect, there is provided a composition for removing residue wherein the composition has a pH ranging from about 2 to about 9 comprising: a buffer solution comprising an organic acid and a conjugate base of the organic acid in a molar ratio of acid to base ranging from 10:1 to 1:10; a fluoride, and water, provided that the composition is substantially free of an added organic solvent. In another aspect, the composition may further comprise a corrosion inhibitor.
    Type: Grant
    Filed: February 3, 2005
    Date of Patent: March 23, 2010
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Roberto John Rovito, Aiping Wu
  • Patent number: 7534753
    Abstract: A residue cleaning composition includes: (a) water; (b) a fluoride; (c) a pH buffer system including an organic acid and a base. The organic acid can be an aminoalkylsulfonic acid and/or an aminoalkylcarboxylic acid. The base can be an amine and/or a quaternary alkylammonium hydroxide. The composition is substantially free of an added organic solvent and has a pH ranging from about 5 to about 12. A method of removing residue from a substrate includes contacting the residue with the cleaning composition. A method for defining a pattern includes etching the pattern through a photoresist into a substrate, heating the patterned substrate to a temperature sufficient to ash the photoresist and provide a residue, and removing the residue by contacting the residue with the cleaning composition.
    Type: Grant
    Filed: January 12, 2006
    Date of Patent: May 19, 2009
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Aiping Wu, Roberto John Rovito
  • Patent number: 6821352
    Abstract: A composition for removing etching residue and a method using same are disclosed herein. In one aspect, there is provided a method for removing etching residue from a substrate comprising: contacting the substrate with a composition comprising water, an organic dicarboxylic acid, a buffering agent, a fluorine source, and optionally a water miscible organic solvent.
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: November 23, 2004
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Roberto John Rovito, David Barry Rennie, Dana L. Durham
  • Publication number: 20040171503
    Abstract: A composition for removing etching residue and a method using same are disclosed herein. In one aspect, there is provided a method for removing etching residue from a substrate comprising: contacting the substrate with a composition comprising water, an organic dicarboxylic acid, a buffering agent, a fluorine source, and optionally a water miscible organic solvent.
    Type: Application
    Filed: November 26, 2003
    Publication date: September 2, 2004
    Inventors: Roberto John Rovito, David Barry Rennie, Dana L. Durham
  • Patent number: 6677286
    Abstract: Compositions containing water, an organic dicarboxylic acid, a buffering agent and fluorine source and optionally a water miscible organic solvent are capable of removing etching residue.
    Type: Grant
    Filed: July 10, 2002
    Date of Patent: January 13, 2004
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Roberto John Rovito, David Barry Rennie, Dana L. Durham