Patents by Inventor Dana L. Durham

Dana L. Durham 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: 7687447
    Abstract: The present invention relates to semi-aqueous compositions and the method using same, to remove highly cross-linked resists and etch-residues. The compositions are comprised of aminobenzenesulfonic acid, water miscible organic solvent and water.
    Type: Grant
    Filed: March 13, 2008
    Date of Patent: March 30, 2010
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Matthew I. Egbe, Michael Walter Legenza, Dana L. Durham
  • Publication number: 20090233827
    Abstract: The present invention relates to semi-aqueous compositions and the method using same, to remove highly cross-linked resists and etch-residues. The compositions are comprised of aminobenzenesulfonic acid, water miscible organic solvent and water.
    Type: Application
    Filed: March 13, 2008
    Publication date: September 17, 2009
    Applicant: AIR PRODUCTS AND CHEMICALS, INC.
    Inventors: Matthew I. Egbe, Michael Walter Legenza, Dana L. Durham
  • Patent number: 6951710
    Abstract: Compositions containing certain amines and/or quaternary ammonium compounds, hydroxylamine, corrosion inhibitor, organic diluent and optionally water are capable of removing photoresist, photoresist byproducts and residue and etching residues from a substrate.
    Type: Grant
    Filed: May 23, 2003
    Date of Patent: October 4, 2005
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Jennifer M. Rieker, Thomas Wieder, Dana L. Durham
  • Publication number: 20040234904
    Abstract: Compositions containing certain amines and/or quaternary ammonium compounds, hydroxylamine, corrosion inhibitor, organic diluent and optionally water are capable of removing photoresist, photoresist byproducts and residue and etching residues from a substrate.
    Type: Application
    Filed: May 23, 2003
    Publication date: November 25, 2004
    Inventors: Jennifer M. Rieker, Thomas Wieder, Dana L. Durham
  • 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
  • Patent number: 6368421
    Abstract: The invention relates to the field of microelectronics, such as integrated circuits, and more particularly to compositions and methods of removing photoresists or other organic materials from the surfaces of substrates used in the fabrication of integrated circuits. In particular the present invention relates to amine-free stripping compositions comprising solvent and surfactant that can effectively remove organic materials without corroding the underlying substrate, and the invention also relates to methods for removing these organic materials with the novel stripping composition.
    Type: Grant
    Filed: July 10, 1998
    Date of Patent: April 9, 2002
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Joseph E. Oberlander, Mark S. Slezak, Dinesh N. Khanna, Dana L. Durham, Lawrence F. Spinicelli
  • Patent number: 6187506
    Abstract: The present invention relates to a novel antireflective coating solution and a process for its use in photolithography. The antireflective coating solution comprises a novel polymer and an organic solvent or mixture of solvents, where the novel polymer comprises a unit containing a dye that absorbs from about 180 nm to about 450 nm and does not contain a crosslinking group.
    Type: Grant
    Filed: August 5, 1999
    Date of Patent: February 13, 2001
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Shuji Ding, Dinesh N. Khanna, Mark A. Spak, Dana L. Durham, Jianhui Shan, Eleazer Gonzalez
  • Patent number: 6106995
    Abstract: The present invention relates to an antireflective coating composition comprising an admixture of:a) a polymer defined by the following structure: ##STR1## where, R.sub.1 & R.sub.2 are independently hydrogen, or C.sub.1 to C.sub.5 alkylR.sub.3 is a methyl, ethyl, propyl or butyl groupR.sub.4 -R.sub.7 are independently hydrogen, or C.sub.1 to C.sub.5 alkyln=10 to 50,000(b) a fluorine-containing, sparingly water-soluble (0.1%-10% by weight in water) organic C.sub.3 -C.sub.13 aliphatic carboxylic acid;(c) a non-metallic hydroxide; and(d) a solvent.The invention also relates to a method for producing such an antireflective coating composition and to a method for producing a microelectronic device using such an antireflective coating composition in conjunction with a photoresist composition.
    Type: Grant
    Filed: August 12, 1999
    Date of Patent: August 22, 2000
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Sunit S. Dixit, M. Dalil Rahman, Dinesh N. Khanna, Joseph E. Oberlander, Dana L. Durham
  • Patent number: 5994430
    Abstract: The present invention relates to an antireflective coating composition comprising a novel polymer in a solvent composition. The invention further comprises processes for using the antireflective coating composition in photolithography. The antireflective coating composition comprises a novel polymer and a solvent composition, where the novel polymer of the antireflective coating comprises at least one unit containing a dye that absorbs from about 180 nm to about 450 nm and at least one unit that contains no aromatic funtionality. The solvent may be organic, preferrably, a solvent of low toxicity, or it may be water, which may additionally contain other water miscible organic solvents.
    Type: Grant
    Filed: April 30, 1997
    Date of Patent: November 30, 1999
    Assignee: Clariant Finance BVI) Limited
    Inventors: Shuji Ding, Ping-Hung Lu, Dinesh N. Khanna, Jianhui Shan, Dana L. Durham, Ralph R. Dammel, M. Dalil Rahman
  • Patent number: 5981145
    Abstract: The present invention relates to a novel polymer suitable for use as an antireflective coating or as an additive in photoresist for absorption of reflected light. The novel polymer comprises at least one unit containing a dye that absorbs from about 180 nm to about 450 nm and at least one unit that contains no aromatic funtionality. The polymer is soluble in organic solvents, preferrably solvents of low toxicity, or it may be soluble in water, which may additionally contain other water miscible organic solvents.
    Type: Grant
    Filed: April 30, 1997
    Date of Patent: November 9, 1999
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Shuji Ding, Dinesh N. Khanna, Ping-Hung Lu, Jianhui Shan, Ralph R. Dammel, Dana L. Durham, M. Dalil Rahman, Iain McCulloch
  • Patent number: 5876897
    Abstract: A light sensitive positive composition comprising an alkali soluble resin, a novel photoactive compound represented by the structure ##STR1## where, X is O, S or N--R', where R' is H, alkyl, substituted alkyl, aryl or aralkyl,Y is a connecting group such as SO.sub.2, CO, O or NR',Z is a carbon containing organic ballast moiety having a molecular weight greater than about 75 and can form a bond with the connecting group,R is independently H, alkyl, alkoxy, aryl, aralkyl, halo or fluoroalkyl,m=1-3, and n.gtoreq.1;and a solvent or mixture of solvents. The invention further comprises a process for imaging the composition of this invention to give positive image. The light sensitive composition is especially useful as a positive deep-uv photoresist.
    Type: Grant
    Filed: March 7, 1997
    Date of Patent: March 2, 1999
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Dana L. Durham, Ping-Hung Lu, Joseph E. Oberlander, Dinesh N. Khanna
  • Patent number: 5866295
    Abstract: The present invention relates to novel photosensitive quinolone compounds, specifically novel 3-diazo 2,4-quinolinedione compounds, that may be used in a variety of applications, such as, photosensitive coating compositions, pharmaceuticals, agricultural, amongst others. The invention further relates to a process for making the novel photosensitive 3-diazo 2,4-quinolinedione compounds. These compounds are particularity useful as a photoactive component in a positive working photoresist composition, particularity for use as a deep ultraviolet (UV) photoresist.
    Type: Grant
    Filed: March 7, 1997
    Date of Patent: February 2, 1999
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Joseph E. Oberlander, Dana L. Durham, Dinesh N. Khanna
  • Patent number: 5733714
    Abstract: The present invention relates to a novel antireflective coating solution and a process for its use in photolithography. The antireflective coating solution comprises a novel polymer and an organic solvent or a mixture of organic solvents, where the novel polymer comprises a unit containing a dye that absorbs from about 180 nm to about 450 nm and a unit containing a crosslinking group.
    Type: Grant
    Filed: September 30, 1996
    Date of Patent: March 31, 1998
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Iain McCulloch, Ralph R. Dammel, Anthony J. Corso, Shuji Ding, Dana L. Durham, Ping-Hung Lu, Ming Kang, Dinesh N. Khanna
  • Patent number: 5688893
    Abstract: The present invention provides methods for producing water insoluble, aqueous alkali soluble novolak resins having a precise and consistent molecular weight, by adjusting the concentration of Lewis base. A method is also provided for producing photoresist composition from such novolak resins and for producing semiconductor devices using such photoresist compositions.
    Type: Grant
    Filed: December 20, 1996
    Date of Patent: November 18, 1997
    Assignee: Hoechst Celanese Corporation
    Inventors: M. Dalil Rahman, Daniel P. Aubin, Dana L. Durham, Ralph R. Dammel
  • Patent number: 5665517
    Abstract: The present invention provides methods for producing water insoluble, aqueous alkali soluble novolak resins having consistent molecular weight and a very low level of metal ions, utilizing a solid acid condensation catalyst. A method is also provided for producing photoresist composition having a very low level of metal ions from such novolak resins and for producing semiconductor devices using such photoresist compositions.
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: September 9, 1997
    Assignee: Hoechst Celanese Corporation
    Inventors: M. Dalil Rahman, Daniel P. Aubin, Elaine G. Kokinda, Dana L. Durham
  • Patent number: 5652297
    Abstract: The present invention relates to a novel aqueous antireflective coating solution and a process for its use in photolithography. The antireflective coating solution comprises a novel polymer and water, where the novel polymer of the antireflective coating comprises at least one unit containing a dye that absorbs from about 180 nm to about 450 nm, at least one unit containing a crosslinking group and at least one unit derived from a hydrophilic vinyl monomer or a vinyl monomer capable of becoming hydrophilic.
    Type: Grant
    Filed: August 16, 1996
    Date of Patent: July 29, 1997
    Assignee: Hoechst Celanese Corporation
    Inventors: Iain McCulloch, Ralph R. Dammel, Dana L. Durham, Ping-Hung Lu, Ming Kang, Dinesh N. Khanna, Shuji Ding
  • Patent number: 5652317
    Abstract: The present invention relates to a novel antireflective coating solution and a process for its use in photolithography. The antireflective coating solution comprises a novel polymer and an organic solvent or a mixture of organic solvents, where the novel polymer comprises a unit containing a dye that absorbs from about 180 nm to about 450 nm and a unit containing a crosslinking group.
    Type: Grant
    Filed: August 16, 1996
    Date of Patent: July 29, 1997
    Assignee: Hoechst Celanese Corporation
    Inventors: Iain McCulloch, Ralph R. Dammel, Dana L. Durham, Ping-Hung Lu
  • Patent number: 5646218
    Abstract: The present invention relates to a water insoluble, aqueous alkali soluble novolak resin blend, wherein the resin blend comprises two novolaks having dissimilar relative molecular weights and similar dissolution rates, a process for producing such a resin blend, a photoresist containing such a resin blend and a method for producing a semi-conductor device utilizing such a photoresist.
    Type: Grant
    Filed: August 5, 1996
    Date of Patent: July 8, 1997
    Assignee: Hoechst-Celanese Corp.
    Inventors: Thomas J. Lynch, Chester J. Sobodacha, Dana L. Durham