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).
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Patent number: 8632948Abstract: 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: GrantFiled: September 30, 2009Date of Patent: January 21, 2014Assignee: AZ Electronic Materials USA Corp.Inventors: Munirathna Padmanaban, Srinivasan Chakrapani, Francis M. Houlihan, Shinji Miyazaki, Edward Ng, Mark O. Neisser
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Patent number: 8088548Abstract: Developable bottom antireflective coating compositions are provided.Type: GrantFiled: October 23, 2007Date of Patent: January 3, 2012Assignee: AZ Electronic Materials USA Corp.Inventors: Francis M. Houlihan, Shinji Miyazaki, Mark O. Neisser, Alberto D. Dioses, Joseph E. Oberlander
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Publication number: 20110086312Abstract: 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: ApplicationFiled: October 9, 2009Publication date: April 14, 2011Inventors: Ralph R. Dammel, Srinivasan Chakrapani, Munirathna Padmanaban, Shinji Miyazaki, Edward W. Ng, Takanori Kudo, Alberto D. Dioses, Francis M. Houlihan
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Publication number: 20110076626Abstract: 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: ApplicationFiled: September 30, 2009Publication date: March 31, 2011Inventors: Munirathna Padmanaban, Srinivasan Chakrapani, Francis M. Houlihan, Shinji Miyazaki, Edward Ng, Mark O. Neisser
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Patent number: 7833693Abstract: 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: GrantFiled: December 10, 2008Date of Patent: November 16, 2010Inventors: M. Dalil Rahman, Francis M. Houlihan, Munirathna Padmanaban, SangHo Lee, Ralph R. Dammel, David Rentkiewicz, Clement Anyadiegwu
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Patent number: 7537879Abstract: 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: GrantFiled: November 22, 2004Date of Patent: May 26, 2009Assignee: AZ Electronic Materials USA Corp.Inventors: Francis M. Houlihan, Ralph R. Dammel, Andrew R. Romano, Munirathna Padmanaban, M. Dalil Rahman
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Publication number: 20090104559Abstract: Developable bottom antireflective coating compositions are provided.Type: ApplicationFiled: October 23, 2007Publication date: April 23, 2009Inventors: Francis M. Houlihan, Shinjl Miyazaki, Mark O. Neisser, Alberto D. Dioses, Joseph E. Oberlander
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Patent number: 7521170Abstract: 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: GrantFiled: February 16, 2006Date of Patent: April 21, 2009Assignee: AZ Electronic Materials USA Corp.Inventors: M. Dalil Rahman, Francis M. Houlihan, Munirathna Padmanaban, SangHo Lee, Ralph R. Dammel, David Rentkiewicz, Clement Anyadiegwu
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Publication number: 20090087782Abstract: 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: ApplicationFiled: December 10, 2008Publication date: April 2, 2009Inventors: M. Dalil Rahman, Francis M. Houlihan, Munirathna Padmanaban, SangHo Lee, Ralph R. Dammel, David Rentkiewicz, Clement Anyadiegwu
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Patent number: 7473512Abstract: 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: GrantFiled: January 27, 2005Date of Patent: January 6, 2009Assignee: AZ Electronic Materials USA Corp.Inventors: Francis M. Houlihan, Ralph R. Dammel, Andrew R. Romano, Raj Sakamuri
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Patent number: 7358408Abstract: The present invention relates to a novel photoactive compounds that can be used in formulating photoresist compositions.Type: GrantFiled: May 16, 2003Date of Patent: April 15, 2008Assignee: AZ Electronic Materials USA Corp.Inventors: M. Dalil Rahman, Francis M. Houlihan
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Patent number: 7351521Abstract: 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: GrantFiled: March 9, 2007Date of Patent: April 1, 2008Assignee: AZ Electronic Materials USA Corp.Inventors: Ralph R. Dammel, Raj Sakamuri, Francis M. Houlihan
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Patent number: 7211366Abstract: 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: GrantFiled: September 9, 2003Date of Patent: May 1, 2007Assignee: AZ Electronic Materials USA Corp.Inventors: Ralph R. Dammel, Raj Sakamuri, Francis M. Houlihan
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Patent number: 7042645Abstract: 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: GrantFiled: December 22, 2003Date of Patent: May 9, 2006Assignees: Agere Systems Inc., Triquint Technology Holding Co.Inventors: Francis M. Houlihan, Madanagopal V. Kunnavakkam, James A. Liddle, Omkaram Nalamasu
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Publication number: 20040265733Abstract: 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 1Type: ApplicationFiled: June 30, 2003Publication date: December 30, 2004Inventors: Francis M. Houlihan, Medhat A. Toukhy, Salem K. Mullen
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Publication number: 20040229155Abstract: The present invention relates to a novel photoactive compounds that can be used in formulating photoresist compositions.Type: ApplicationFiled: May 16, 2003Publication date: November 18, 2004Inventors: M. Dalil Rahman, Francis M. Houlihan
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Publication number: 20040130794Abstract: 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: ApplicationFiled: December 22, 2003Publication date: July 8, 2004Inventors: Francis M. Houlihan, Madanagopal V. Kunnavakkam, James A. Liddle, Omkaram Nalamasu
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Patent number: 6700708Abstract: 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: GrantFiled: May 30, 2002Date of Patent: March 2, 2004Assignees: Agere Systems, Inc., Triquint Technology Holding Co.Inventors: Francis M. Houlihan, Madanagopal V. Kunnavakkam, James A. Liddle, Omkaram Nalamasu
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Publication number: 20030227688Abstract: 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: ApplicationFiled: May 30, 2002Publication date: December 11, 2003Inventors: Francis M. Houlihan, Madanagopal V. Kunnavakkam, James A. Liddle, Omkaram Nalamasu
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Patent number: 6396983Abstract: 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: GrantFiled: February 7, 2001Date of Patent: May 28, 2002Assignee: Lucent Technologies Inc.Inventors: Robert Michael Atkins, Arturo Hale, Francis M Houlihan, Valerie Jeanne Kuck, Richard T Olsson, Mark Anthony Paczkowski, Debra Ann Simoff