Patents by Inventor Charles J. Neef
Charles J. Neef 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: 10280369Abstract: Thermal barrier mixtures and method of making the thermal barrier mixtures are described herein. The thermal barrier mixtures may be used to make thermal barrier coatings. Thermal barrier mixture may include halloysite and one or more silicon compounds.Type: GrantFiled: April 22, 2013Date of Patent: May 7, 2019Assignee: Board of Regents of the University of Texas SystemInventors: Charles J. Neef, John Lee Massingill, Jr., Clois E. Powell
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Patent number: 9482951Abstract: This invention describes compositions and methods of using non-covalently crosslinked resin coatings for lithographic applications. These materials are designed to undergo, after coating, a change that provides solvent resistance and, with some materials, simultaneous aqueous-base solubility. Non-covalent interactions allow for easier removal of these coatings than of covalently crosslinked materials. These types of materials are well-suited for trench and gap fill applications, as well as for anti-reflective coatings, spin-on carbon layers, and etch masks.Type: GrantFiled: July 28, 2008Date of Patent: November 1, 2016Assignee: Brewer Science Inc.Inventors: Daniel M. Sullivan, Runhui Huang, Charles J. Neef, Jinhua Dai, Michael B. Swope
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Publication number: 20150080508Abstract: Thermal barrier mixtures and method of making the thermal barrier mixtures are described herein. The thermal barrier mixtures may be used to make thermal barrier coatings. Thermal barrier mixture may include halloysite and one or more silicon compounds.Type: ApplicationFiled: April 22, 2013Publication date: March 19, 2015Inventors: Charles J. Neef, John Lee Massingill, JR., Clois E. Powell
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Patent number: 8647809Abstract: Metal-oxide films for lithographic applications are provided. The films are formed from compositions comprising metal-oxide precursor compounds including metals and metalloids other than silicon. These films are easily produced and can be modified with a variety of ligands, including alkoxides, phenoxides, carboxylates, beta-diketones, and beta-ketoesters.Type: GrantFiled: July 7, 2011Date of Patent: February 11, 2014Assignee: Brewer Science Inc.Inventors: Daniel M. Sullivan, Charles J. Neef, Yubao Wang, Tantiboro Ouattara
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Publication number: 20130011630Abstract: Metal-oxide films for lithographic applications are provided. The films are formed from compositions comprising metal-oxide precursor compounds including metals and metalloids other than silicon. These films are easily produced and can be modified with a variety of ligands, including alkoxides, phenoxides, carboxylates, beta-diketones, and beta-ketoesters.Type: ApplicationFiled: July 7, 2011Publication date: January 10, 2013Applicant: BREWER SCIENCE INC.Inventors: Daniel M. Sullivan, Charles J. Neef, Yubao Wang, Tantiboro Ouattara
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Publication number: 20100040988Abstract: Anti-reflective compositions and methods of using these compositions to form circuits are provided. The compositions comprise a polymer dissolved or dispersed in a solvent system. In a preferred embodiment, the polymers of the composition include recurring monomers having the formulas where: (1) each R is individually selected from the group consisting of hydrogen, —OH, aliphatics, and phenyls; and (2) L is selected from the group consisting of —SO2— and —CR?2—, where each R? is individually selected from the group consisting of hydrogen, aliphatics, phenyls, and —CX3, where each X is individually selected from the group consisting of the halogens. The resulting compositions are spin bowl compatible (i.e., they do not crosslink prior to the bake stages of the microlithographic processes or during storage at room temperature), are wet developable, and have superior optical properties.Type: ApplicationFiled: October 20, 2009Publication date: February 18, 2010Inventors: Robert Christian Cox, Charles J. Neef
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Patent number: 7608380Abstract: Anti-reflective compositions and methods of using these compositions to form circuits are provided. The compositions comprise a polymer dissolved or dispersed in a solvent system. In a preferred embodiment, the polymers are copolymers of a compound having the formulas and a compound having the formula where: (1) each R is individually selected from the group consisting of —OH, —NH2, hydrogen, aliphatics, and phenyls; and (2) L is selected from the group consisting of —SO2— and —CR?2—. The resulting compositions are spin bowl compatible (i.e., they do not crosslink prior to the bake stages of the microlithographic processes or during storage at room temperature), are wet developable, and have superior optical properties.Type: GrantFiled: November 2, 2005Date of Patent: October 27, 2009Assignee: Brewer Science Inc.Inventors: Robert Christian Cox, Charles J. Neef
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Patent number: 7510004Abstract: A swellable polymer gel composition for use in subterranean formations. The composition comprises water, a water soluble polymer, a water soluble crosslinking system and a swelling agent. The crosslinking system may be either a redox system or a chelating system. The amounts of the polymer and the crosslinking system are effective to form a substantially uniformly reacted tri-dimensional gel structure. To the gel solution, is added a swelling agent in an amount sufficient to increase the volume of the gel a predetermined percentage. The swelling agent may be a natural or a synthetic agent. A strengthening agent may be added to increase the gel strength of the composition. The composition has numerous uses and is particularly useful in oil industry applications such as plugging wells, sealing casing leaks and reducing water production from water-bearing hydrocarbon formations.Type: GrantFiled: September 19, 2003Date of Patent: March 31, 2009Inventors: James E. Hessert, D. Daniel Wallace, Jimmy D. DeLong, Charles J. Neef
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Publication number: 20090035590Abstract: This invention describes compositions and methods of using non-covalently crosslinked resin coatings for lithographic applications. These materials are designed to undergo, after coating, a change that provides solvent resistance and, with some materials, simultaneous aqueous-base solubility. Non-covalent interactions allow for easier removal of these coatings than of covalently crosslinked materials. These types of materials are well-suited for trench and gap fill applications, as well as for anti-reflective coatings, spin-on carbon layers, and etch masks.Type: ApplicationFiled: July 28, 2008Publication date: February 5, 2009Inventors: Daniel M. Sullivan, Runhui Huang, Charles J. Neef, Jinhua Dai, Michael B. Swope
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Patent number: 7323289Abstract: Novel anti-reflective coatings comprising small molecules (e.g., less than about 5,000 g/mole) in lieu of high molecular weight polymers and methods of using those coatings are provided. In one embodiment, aromatic carboxylic acids are used as the chromophores, and the resulting compounds are blended with a crosslinking agent and an acid. Anti-reflective coating films prepared according to the invention exhibit improved properties compared to high molecular weight polymeric anti-reflective coating films. The small molecule anti-reflective coatings have high etch rates and good via fill properties. Photolithographic processes carried out with the inventive material result in freestanding, 110-nm profiles.Type: GrantFiled: October 6, 2003Date of Patent: January 29, 2008Assignee: Brewer Science Inc.Inventors: Charles J. Neef, Mandar Bhave, Michelle Fowler, Michelle Windsor
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Patent number: 7261997Abstract: Anti-reflective compositions and methods of using these compositions to form circuits are provided. The compositions comprise a polymer dissolved or dispersed in a solvent system. In a preferred embodiment the polymers of the composition include recurring monomers having the formulas where: (1) each R is individually selected from the group consisting of hydrogen, —OH, aliphatics, and phenyls; and (2) L is selected from the group consisting of —SO2— and —CR?2—, where each R? is individually selected from the group consisting of hydrogen, aliphatics, phenyls, and —CX3, where each X is individually selected from the group consisting of the halogens. The resulting compositions are spin bowl compatible (i.e., they do not crosslink prior to the bake stages of the microlithographic processes or during storage at room temperature), are wet developable, and have superior optical properties.Type: GrantFiled: June 25, 2002Date of Patent: August 28, 2007Assignee: Brewer Science Inc.Inventors: Robert Christian Cox, Charles J. Neef
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Patent number: 6872506Abstract: Anti-reflective compositions and methods of using these compositions to form circuits are provided. The compositions comprise a polymer dissolved or dispersed in a solvent system. In a preferred embodiment, the polymers include a light-attenuating moiety having a structure selected from the group consisting of: where: each of X1 and Y is individually selected from the group consisting of electron withdrawing groups; R2 is selected from the group consisting of alkyls and aryls; and R3 is selected from the group consisting of hydrogen and alkyls. The resulting compositions are spin bowl compatible (i.e., they do not crosslink prior to the bake stages of the microlithographic processes or during storage at room temperature), are wet developable, and have superior optical properties.Type: GrantFiled: June 23, 2003Date of Patent: March 29, 2005Assignee: Brewer Science Inc.Inventors: Charles J. Neef, Vandana Krishnamurthy
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Publication number: 20040210034Abstract: Anti-reflective compositions and methods of using these compositions to form circuits are provided. The compositions comprise a polymer dissolved or dispersed in a solvent system.Type: ApplicationFiled: May 11, 2004Publication date: October 21, 2004Inventors: Robert Christian Cox, Charles J. Neef
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Publication number: 20040110089Abstract: Novel anti-reflective coatings comprising small molecules (e.g., less than about 5,000 g/mole) in lieu of high molecular weight polymers and methods of using those coatings are provided. In one embodiment, aromatic carboxylic acids are used as the chromophores, and the resulting compounds are blended with a crosslinking agent and an acid. Anti-reflective coating films prepared according to the invention exhibit improved properties compared to high molecular weight polymeric anti-reflective coating films. The small molecule anti-reflective coatings have high etch rates and good via fill properties. Photolithographic processes carried out with the inventive material result in freestanding, 110-nm profiles.Type: ApplicationFiled: October 6, 2003Publication date: June 10, 2004Applicant: Brewer Science Inc.Inventors: Charles J. Neef, Mandar Bhave, Michelle Fowler, Michelle Windsor
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Patent number: 6740469Abstract: Anti-reflective compositions and methods of using these compositions to form circuits are provided. The compositions comprise a polymer dissolved or dispersed in a solvent system. In a preferred embodiment, the polymers of the composition include recurring units having the formula where X is a light-attenuating moiety, M is a metal, and each R is individually selected from the group consisting of hydrogen, alkyls, aryls, alkoxys, and phenoxys. The resulting compositions are spin bowl compatible (i.e., they do not crosslink prior to the bake stages of the microlithographic processes or during storage at room temperature), are wet developable, and have superior optical properties.Type: GrantFiled: June 25, 2002Date of Patent: May 25, 2004Assignee: Brewer Science Inc.Inventors: Vandana Krishnamurthy, Charles J. Neef, Juliet A. M. Snook
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Publication number: 20040058275Abstract: Anti-reflective compositions and methods of using these compositions to form circuits are provided. The compositions comprise a polymer dissolved or dispersed in a solvent system.Type: ApplicationFiled: June 23, 2003Publication date: March 25, 2004Applicant: Brewer Science, Inc.Inventors: Charles J. Neef, Vandana Krishnamurthy
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Publication number: 20030235786Abstract: Anti-reflective compositions and methods of using these compositions to form circuits are provided. The compositions comprise a polymer dissolved or dispersed in a solvent system.Type: ApplicationFiled: June 25, 2002Publication date: December 25, 2003Applicant: BREWER SCIENCE, INC.Inventors: Vandana Krishnamurthy, Charles J. Neef, Juliet A.M. Snook
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Patent number: 6667279Abstract: A swellable polymer gel composition for use in subterranean formations. The composition comprises water, a water soluble polymer, a water soluble crosslinking system and a swelling agent. The crosslinking system may be either a redox system or a chelating system. The amounts of the polymer and the crosslinking system are effective to form a substantially uniformly reacted tri-dimensional gel structure. To the gel solution, is added a swelling agent in an amount sufficient to increase the volume of the gel a predetermined percentage. The swelling agent may be a natural or a synthetic agent. A strengthening agent may be added to increase the gel strength of the composition. The composition has numerous uses and is particularly useful in oil industry applications such as plugging wells, sealing casing leaks and reducing water production from water-bearing hydrocarbon formations.Type: GrantFiled: November 13, 1997Date of Patent: December 23, 2003Assignee: Wallace, Inc.Inventors: James E. Hessert, D. Daniel Wallace, Jimmy D. DeLong, Charles J. Neef
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Publication number: 20030166828Abstract: Anti-reflective compositions and methods of using these compositions to form circuits are provided. The compositions comprise a polymer dissolved or dispersed in a solvent system.Type: ApplicationFiled: June 25, 2002Publication date: September 4, 2003Applicant: BREWER SCIENCE, INC.Inventors: Robert Christian Cox, Charles J. Neef
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Patent number: 6426399Abstract: The present invention describes an improved method for the polymerization of &agr;,&agr;-dihalo-p-xylene's such as the &agr;,&agr;′-dihalo-2-methoxy-5-(2-ethylhexyloxy)-xylene's. The procedure for synthesis is based on the specific order of addition of reagents and the use of an anionic initiator that allows control of the molecular weight of the polymer. The molecular weight control allows processability of the polymer which is important for its utility in applications including in light-emitting-diodes, field effect transistors and photovoltaic devices.Type: GrantFiled: February 11, 2000Date of Patent: July 30, 2002Assignee: Board of Regents, The University of Texas SystemInventors: John P. Ferraris, Charles J. Neef