Patents by Inventor Francis M. Houlihan

Francis M. Houlihan 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: 8632948
    Abstract: The invention relates to a photoimageable antireflective coating composition capable of forming a pattern by development in an aqueous alkaline solution, comprising, (i) a polymer A soluble in a coating solvent and comprises a chromophore, a crosslinking moiety, and optionally a cleavable group which under acid or thermal conditions produces a functionality which aids in the solubility of the polymer in an aqueous alkaline solution and; (ii) at least one photoacid generator; (iii) a crosslinking agent; (iv) optionally, a thermal acid generator; (v) a polymer B which is soluble in an aqueous alkaline solution prior to development, where polymer B is non-miscible with polymer A and soluble in the coating solvent, and; (vi) a coating solvent composition, and (vii) optionally, a quencher. The invention also relates to a process for imaging the antireflective coating.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: January 21, 2014
    Assignee: AZ Electronic Materials USA Corp.
    Inventors: Munirathna Padmanaban, Srinivasan Chakrapani, Francis M. Houlihan, Shinji Miyazaki, Edward Ng, Mark O. Neisser
  • Patent number: 8088548
    Abstract: Developable bottom antireflective coating compositions are provided.
    Type: Grant
    Filed: October 23, 2007
    Date of Patent: January 3, 2012
    Assignee: AZ Electronic Materials USA Corp.
    Inventors: Francis M. Houlihan, Shinji Miyazaki, Mark O. Neisser, Alberto D. Dioses, Joseph E. Oberlander
  • Publication number: 20110086312
    Abstract: The present invention relates to a positive bottom photoimageable antireflective coating composition which is capable of being developed in an aqueous alkaline developer, wherein the antireflective coating composition comprises a polymer comprising at least one recurring unit with a chromophore group and one recurring unit with a hydroxyl and/or a carboxyl group, a vinyl ether terminated crosslinking agent of structure (7), and optionally, a photoacid generator and/or an acid and/or a thermal acid generator, where structure (7) is wherein W is selected from (C1-C30) linear, branched or cyclic alkyl moiety, substituted or unsubstituted (C3-C40) alicyclic hydrocarbon moiety and substituted is or unsubstituted (C3-C40) cycloalkylalkylene moiety; R is selected from C1-C10 linear or branched alkylene and n?2. The invention further relates to a process for using such a composition.
    Type: Application
    Filed: October 9, 2009
    Publication date: April 14, 2011
    Inventors: Ralph R. Dammel, Srinivasan Chakrapani, Munirathna Padmanaban, Shinji Miyazaki, Edward W. Ng, Takanori Kudo, Alberto D. Dioses, Francis M. Houlihan
  • Publication number: 20110076626
    Abstract: The invention relates to a photoimageable antireflective coating composition capable of forming a pattern by development in an aqueous alkaline solution, comprising, (i) a polymer A soluble in a coating solvent and comprises a chromophore, a crosslinking moiety, and optionally a cleavable group which under acid or thermal conditions produces a functionality which aids in the solubility of the polymer in an aqueous alkaline solution and; (ii) at least one photoacid generator; (iii) a crosslinking agent; (iv) optionally, a thermal acid generator; (v) a polymer B which is soluble in an aqueous alkaline solution prior to development, where polymer B is non-miscible with polymer A and soluble in the coating solvent, and; (vi) a coating solvent composition, and (vii) optionally, a quencher. The invention also relates to a process for imaging the antireflective coating.
    Type: Application
    Filed: September 30, 2009
    Publication date: March 31, 2011
    Inventors: Munirathna Padmanaban, Srinivasan Chakrapani, Francis M. Houlihan, Shinji Miyazaki, Edward Ng, Mark O. Neisser
  • Patent number: 7833693
    Abstract: The present application relates to a compound of formula A-X—B, where (i) A-X—B form an ionic compound Ai Xi Bi where Ai and Bi are each individually an organic onium cation; and Xi is anion of the formula Q-R500—SO3? or (ii) A-X—B form a non-ionic compound Ac-Xc-Bc, where Ai, Bi, Q, R500, Ac, Bc, and Xc are defined herein. The compounds are useful as photoactive materials.
    Type: Grant
    Filed: December 10, 2008
    Date of Patent: November 16, 2010
    Inventors: M. Dalil Rahman, Francis M. Houlihan, Munirathna Padmanaban, SangHo Lee, Ralph R. Dammel, David Rentkiewicz, Clement Anyadiegwu
  • Patent number: 7537879
    Abstract: The present invention relates to a novel chemically amplified photoresist, which is sensitive to wavelengths between 300 nm and 100 nm, and comprises a) a novel polymer comprising a sulfone group pendant from a polymer backbone that is insoluble in an aqueous alkaline solution and comprises at least one acidic moiety protected with acid labile group, and b) a compound capable of producing an acid upon irradiation. The invention also relates to a process of imaging the novel positive photoresist composition.
    Type: Grant
    Filed: November 22, 2004
    Date of Patent: May 26, 2009
    Assignee: AZ Electronic Materials USA Corp.
    Inventors: Francis M. Houlihan, Ralph R. Dammel, Andrew R. Romano, Munirathna Padmanaban, M. Dalil Rahman
  • Publication number: 20090104559
    Abstract: Developable bottom antireflective coating compositions are provided.
    Type: Application
    Filed: October 23, 2007
    Publication date: April 23, 2009
    Inventors: Francis M. Houlihan, Shinjl Miyazaki, Mark O. Neisser, Alberto D. Dioses, Joseph E. Oberlander
  • Patent number: 7521170
    Abstract: The present application relates to a compound of formula A-X—B, where (i)A-X—B form an ionic compound Ai Xi Bi where Ai and Bi are each individually an organic onium cation; and Xi is anion of the formula Q-R500—SO3? or (ii)A-X—B form a non-ionic compound Ac-Xc-Bc, where Ai, Bi, Q, R500, Ac, Bc, and Xc are defined herein. The compounds are useful as photoactive materials.
    Type: Grant
    Filed: February 16, 2006
    Date of Patent: April 21, 2009
    Assignee: AZ Electronic Materials USA Corp.
    Inventors: M. Dalil Rahman, Francis M. Houlihan, Munirathna Padmanaban, SangHo Lee, Ralph R. Dammel, David Rentkiewicz, Clement Anyadiegwu
  • Publication number: 20090087782
    Abstract: The present application relates to a compound of formula A-X—B, where (i) A-X—B form an ionic compound Ai Xi Bi where Ai and Bi are each individually an organic onium cation; and Xi is anion of the formula Q-R500—SO3? or (ii) A-X—B form a non-ionic compound Ac-Xc-Bc, where Ai, Bi, Q,, R500, Ac, Bc, and Xc are defined herein. The compounds are useful as photoactive materials.
    Type: Application
    Filed: December 10, 2008
    Publication date: April 2, 2009
    Inventors: M. Dalil Rahman, Francis M. Houlihan, Munirathna Padmanaban, SangHo Lee, Ralph R. Dammel, David Rentkiewicz, Clement Anyadiegwu
  • Patent number: 7473512
    Abstract: The present invention relates to a process for imaging deep ultraviolet (uv) photoresists with a topcoat using deep uv immersion lithography. The invention further relates to a topcoat composition comprising a polymer with at least one ionizable group having a pKa ranging from about ?9 to about 11. The invention also relates to a process for imaging a photoresist with a top barrier coat to prevent contamination of the photoresist from environmental contaminants.
    Type: Grant
    Filed: January 27, 2005
    Date of Patent: January 6, 2009
    Assignee: AZ Electronic Materials USA Corp.
    Inventors: Francis M. Houlihan, Ralph R. Dammel, Andrew R. Romano, Raj Sakamuri
  • Patent number: 7358408
    Abstract: The present invention relates to a novel photoactive compounds that can be used in formulating photoresist compositions.
    Type: Grant
    Filed: May 16, 2003
    Date of Patent: April 15, 2008
    Assignee: AZ Electronic Materials USA Corp.
    Inventors: M. Dalil Rahman, Francis M. Houlihan
  • Patent number: 7351521
    Abstract: The present invention relates to a photoresist composition comprising a photoacid generator and at least one polymer comprising at least one unit as described by structure 1, The invention also relates to a process for imaging the photoresist composition of the present invention, and to a process of making the polymer in the presence of an organic base.
    Type: Grant
    Filed: March 9, 2007
    Date of Patent: April 1, 2008
    Assignee: AZ Electronic Materials USA Corp.
    Inventors: Ralph R. Dammel, Raj Sakamuri, Francis M. Houlihan
  • Patent number: 7211366
    Abstract: The present invention relates to a photoresist composition comprising a photoacid generator and at least one polymer comprising at least one unit as described by structure 1, The invention also relates to a process for imaging the photoresist composition of the present invention, and to a process of making the polymer in the presence of an organic base.
    Type: Grant
    Filed: September 9, 2003
    Date of Patent: May 1, 2007
    Assignee: AZ Electronic Materials USA Corp.
    Inventors: Ralph R. Dammel, Raj Sakamuri, Francis M. Houlihan
  • Patent number: 7042645
    Abstract: A micro-lens array and a method for making are described. The micro-lens array includes a base element and a plurality of lenses formed of an epoxy and including nanoparticles. The micro-lens array is formed from a master micro-lens array, which is placed within a replica micro-lens making assembly. The master micro-lens array is coated with an anti-stiction material prior to having an elastomeric material positioned over it and cured. Removal of the elastomeric material provides a plurality of cavities, which are filled with an epoxy including nanoparticles. Curing of the epoxy finishes the fabrication of the micro-lens array. The lenses of the micro-lens array are formed from a colloidal suspension of nanoparticles and resin.
    Type: Grant
    Filed: December 22, 2003
    Date of Patent: May 9, 2006
    Assignees: Agere Systems Inc., Triquint Technology Holding Co.
    Inventors: Francis M. Houlihan, Madanagopal V. Kunnavakkam, James A. Liddle, Omkaram Nalamasu
  • Publication number: 20040265733
    Abstract: A composition useful for forming a photoresist layer at i-line (365 nm) comprising (a) a film forming resin; (b) a compound represented by the following formula 1
    Type: Application
    Filed: June 30, 2003
    Publication date: December 30, 2004
    Inventors: Francis M. Houlihan, Medhat A. Toukhy, Salem K. Mullen
  • Publication number: 20040229155
    Abstract: The present invention relates to a novel photoactive compounds that can be used in formulating photoresist compositions.
    Type: Application
    Filed: May 16, 2003
    Publication date: November 18, 2004
    Inventors: M. Dalil Rahman, Francis M. Houlihan
  • Publication number: 20040130794
    Abstract: A micro-lens array and a method for making are described. The micro-lens array includes a base element and a plurality of lenses formed of an epoxy and including nanoparticles. The micro-lens array is formed from a master micro-lens array, which is placed within a replica micro-lens making assembly. The master micro-lens array is coated with an anti-stiction material prior to having an elastomeric material positioned over it and cured. Removal of the elastomeric material provides a plurality of cavities, which are filled with an epoxy including nanoparticles. Curing of the epoxy finishes the fabrication of the micro-lens array. The lenses of the micro-lens array are formed from a colloidal suspension of nanoparticles and resin.
    Type: Application
    Filed: December 22, 2003
    Publication date: July 8, 2004
    Inventors: Francis M. Houlihan, Madanagopal V. Kunnavakkam, James A. Liddle, Omkaram Nalamasu
  • Patent number: 6700708
    Abstract: A micro-lens array and a method for making are described. The micro-lens array includes a base element and a plurality of lenses formed of an epoxy and including nanoparticles. The micro-lens array is formed from a master micro-lens array, which is placed within a replica micro-lens making assembly. The master micro-lens array is coated with an anti-stiction material prior to having an elastomeric material positioned over it and cured. Removal of the elastomeric material provides a plurality of cavities, which are filled with an epoxy including nanoparticles. Curing of the epoxy finishes the fabrication of the micro-lens array. The lenses of the micro-lens array are formed from a colloidal suspension of nanoparticles and resin.
    Type: Grant
    Filed: May 30, 2002
    Date of Patent: March 2, 2004
    Assignees: Agere Systems, Inc., Triquint Technology Holding Co.
    Inventors: Francis M. Houlihan, Madanagopal V. Kunnavakkam, James A. Liddle, Omkaram Nalamasu
  • Publication number: 20030227688
    Abstract: A micro-lens array and a method for making are described. The micro-lens array includes a base element and a plurality of lenses formed of an epoxy and including nanoparticles. The micro-lens array is formed from a master micro-lens array, which is placed within a replica micro-lens making assembly. The master micro-lens array is coated with an anti-stiction material prior to having an elastomeric material positioned over it and cured. Removal of the elastomeric material provides a plurality of cavities, which are filled with an epoxy including nanoparticles. Curing of the epoxy finishes the fabrication of the micro-lens array. The lenses of the micro-lens array are formed from a colloidal suspension of nanoparticles and resin.
    Type: Application
    Filed: May 30, 2002
    Publication date: December 11, 2003
    Inventors: Francis M. Houlihan, Madanagopal V. Kunnavakkam, James A. Liddle, Omkaram Nalamasu
  • Patent number: 6396983
    Abstract: This invention is predicated upon applicants' discovery that UV-induced gratings can be formed through polymer coatings that include conjugated double bonds and aromatic moieties. Coatings with low concentrations of aromatic-containing free-radical photoinitiators provide both reasonable curing speeds and sufficient transparency that gratings can be written through them. Moreover some of these aromatic-containing free-radical photoinitiators act synergistically with non-aromatic ketone photoinitiators. Advantageous aromatic-containing free-radical photoinitiator concentrations are in the range 0.01%-0.1% and preferably in the range 0.02% to 0.05%. Advantageous polymer coatings are acrylate-based coatings.
    Type: Grant
    Filed: February 7, 2001
    Date of Patent: May 28, 2002
    Assignee: Lucent Technologies Inc.
    Inventors: Robert Michael Atkins, Arturo Hale, Francis M Houlihan, Valerie Jeanne Kuck, Richard T Olsson, Mark Anthony Paczkowski, Debra Ann Simoff