Patents Assigned to Brewer Science
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Patent number: 7026237Abstract: An improved via and contact hole fill composition and method for using the composition in the dual damascene production of circuits is provided. Broadly, the fill compositions include a quantity of solid components including a polymer binder and a solvent system for the solid components. The boiling point of the solvent system is less than the cross-linking temperature of the composition. Preferred solvents for use in the solvent system include those selected from the group consisting of alcohols, ethers, glycol ethers, amides, ketones, and mixtures thereof. Preferred polymer binders are those having an aliphatic backbone and a molecular weight of less than about 80,000, with polyesters being particularly preferred.Type: GrantFiled: January 16, 2004Date of Patent: April 11, 2006Assignee: Brewer Science Inc.Inventors: James E. Lamb, III, Xie Shao
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Publication number: 20060068207Abstract: Novel compositions and methods of using those compositions to form high refractive index coatings are provided. The compositions preferably comprise both a reactive solvent and a high refractive index compound. Preferred reactive solvents include aromatic resins that are functionalized with one or more reactive groups (e.g., epoxides, vinyl ethers, oxetane), while preferred high refractive index compounds include aromatic epoxides, vinyl ethers, oxetanes, phenols, and thiols. An acid or crosslinking catalyst is preferably also included. The inventive compositions are stable under ambient conditions and can be applied to a substrate to form a layer and cured via light and/or heat application. The cured layers have high refractive indices and light transmissions.Type: ApplicationFiled: September 26, 2005Publication date: March 30, 2006Applicant: Brewer Science Inc., a Missouri corporationInventors: Ramil-Marcelo Mercado, Robert Morford, Curtis Planje, Willie Perez, Tony Flaim, Taylor Bass
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Patent number: 6962769Abstract: Anti-reflective compositions and methods of using those compositions to form circuits are provided. The compositions comprise a polymer dissolved or dispersed in a solvent system. In one embodiment, the compositions comprise less than about 0.3% by weight of a strong acid. In another embodiment, the weight ratio of strong acid to weak acid in the composition is from about 0:100 to about 25:75. Examples of preferred weak acid compounds include phenolic compounds (e.g., Bisphenol S, Bisphenol A, ?-cyano-4-hydroxycinnamic acid), carboxylic acids (e.g., acetic acid), phosphoric acid, and cyano compounds. The polymer and other ingredients are preferably physically mixed in a solvent system. 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).Type: GrantFiled: September 11, 2003Date of Patent: November 8, 2005Assignee: Brewer Science Inc.Inventors: Xie Shao, Jim D. Meador, Mandar Bhave, Vandana Krishnamurthy, Kelly A. Nowak, Michelle Fowler, Shreeram V. Deshpande
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Patent number: 6936405Abstract: An improved method for applying organic antireflective coatings to substrate surfaces and the resulting precursor structures are provided. Broadly, the methods comprise chemical vapor depositing (CVD) an antireflective compound on the substrate surface. In one embodiment, the compound is highly strained (e.g., having a strain energy of at least about 10 kcal/mol) and comprises two cyclic moieties joined to one another via a linkage group. The most preferred monomers are [2.2](1,4)-naphthalenophane and [2.2](9,10)-anthracenophane. The CVD processes comprise heating the antireflective compound so as to vaporize it, and then pyrolizing the vaporized compound to form stable diradicals which are subsequently polymerized on a substrate surface in a deposition chamber. The inventive methods are useful for providing highly conformal antireflective coatings on large substrate surfaces having super submicron (0.25 ?m or smaller) features.Type: GrantFiled: December 21, 2000Date of Patent: August 30, 2005Assignee: Brewer Science Inc.Inventors: Ram W. Sabnis, Douglas J. Guerrero, Terry Brewer, Mary J. Spencer
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Patent number: 6900000Abstract: An improved method for applying organic antireflective coatings to substrate surfaces and the resulting precursor structures are provided. Broadly, the methods comprise chemical vapor depositing (CVD) an antireflective compound on the substrate surface. In one embodiment, the compound is highly strained (e.g., having a strain energy of at least about 10 kcal/mol) and comprises two cyclic moieties joined to one another via a linkage group. The most preferred monomers are [2.2](1,4)-naphthalenophane and [2.2](9,10)-anthracenophane. The CVD processes comprise heating the antireflective compound so as to vaporize it, and then pyrolizing the vaporized compound to form stable diradicals which are subsequently polymerized on a substrate surface in a deposition chamber. The inventive methods are useful for providing highly conformal antireflective coatings on large substrate surfaces having super submicron (0.25 ?m or smaller) features.Type: GrantFiled: June 28, 2002Date of Patent: May 31, 2005Assignee: Brewer Science Inc.Inventors: Ram W. Sabnis, Douglas J. Guerrero, Terry Brewer, Mary J. Spencer
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Patent number: 6894104Abstract: New anti-reflective or fill compositions having improved flow properties are provided. The compositions comprise a styrene-allyl alcohol polymer and preferably at least one other polymer (e.g., cellulosic polymers) in addition to the styrene-allyl alcohol polymer. The inventive compositions can be used to protect contact or via holes from degradation during subsequent etching in the dual damascene process. The inventive compositions can also be applied to substrates (e.g., silicon wafers) to form anti-reflective coating layers having high etch rates which minimize or prevent reflection during subsequent photoresist exposure and developing.Type: GrantFiled: May 23, 2002Date of Patent: May 17, 2005Assignee: Brewer Science Inc.Inventors: Gu Xu, Jimmy D. Meador, Mandar R. Bhave, Shreeram V. Deshpande, Kelly A. Nowak
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Patent number: 6893684Abstract: Anti-reflective compositions and methods of using those compositions with low dielectric constant materials are provided. In one embodiment, the compositions include polymers comprising recurring monomers having unreacted ring members. In another embodiment, the polymers further comprise recurring monomers comprising ring members reacted with a light attenuating compound so as to open the ring. The compositions can be applied to dielectric layers so as to minimize or prevent reflection during the dual damascene process while simultaneously blocking via or photoresist poisoning which commonly occurs when organic anti-reflective coatings are applied to low dielectric constant layers.Type: GrantFiled: December 3, 2002Date of Patent: May 17, 2005Assignee: Brewer Science Inc.Inventors: Rama Puligadda, James E. Lamb, III, Tony D. Flaim
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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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Patent number: 6869747Abstract: An improved method for applying organic antireflective coatings to substrate surfaces and the resulting precursor structures are provided. Broadly, the methods comprise chemical vapor depositing (CVD) an antireflective compound on the substrate surface. In one embodiment, the compound is highly strained (e.g., having a strain energy of at least about 10 kcal/mol) and comprises two cyclic moieties joined to one another via a linkage group. The most preferred monomers are [2.2](1,4)-naphthalenophane and [2.2](9,10)-anthracenophane. The CVD processes comprise heating the antireflective compound so as to vaporize it, and then pyrolizing the vaporized compound to form stable diradicals which are subsequently polymerized on a substrate surface in a deposition chamber. The inventive methods are useful for providing highly conformal antireflective coatings on large substrate surfaces having super submicron (0.25 ?m or smaller) features.Type: GrantFiled: June 28, 2002Date of Patent: March 22, 2005Assignee: Brewer Science Inc.Inventors: Ram W. Sabnis, Douglas J. Guerrero, Terry Brewer, Mary J. Spencer
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Patent number: 6852474Abstract: An improved method for applying polymeric antireflective coatings to substrate surfaces and the resulting precursor structures are provided. Broadly, the methods comprise plasma enhanced chemical vapor depositing (PECVD) a polymer on the substrate surfaces. The PECVD processes comprise providing a quantity of a polymer generated by introducing monomer vapors into a plasma state followed by polymerization thereof, with assistance of plasma energy, onto the surface of a substrate. The most preferred starting monomers are phenylacetylene, 4-ethynyltoluene, and 1-ethynyl-2-fluorobenzene. The inventive methods are useful for providing highly conformal antireflective coatings on large surface substrates having super submicron (0.25 ?m or smaller) features. The process provides a much faster deposition rate than conventional chemical vapor deposition (CVD) methods, is environmentally friendly, and is economical.Type: GrantFiled: April 24, 2003Date of Patent: February 8, 2005Assignee: Brewer Science Inc.Inventor: Ram W. Sabnis
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Patent number: 6852473Abstract: A method for forming an anti-reflective coating on a semiconductor substrate, including providing a first vessel containing an anti-reflective coating component and a second vessel containing a solvent. The anti-reflective coating component from the first vessel and the solvent from the second vessel are supplied to a mixing chamber. The anti-reflective coating component and the solvent are mixed in the mixing chamber to form a product. The product is transferred to the semiconductor substrate. The product is applied to the semiconductor substrate to form the anti-reflective coating. A system for forming an anti-reflective coating on a semiconductor substrate, including a first vessel for containing an anti-reflective coating component and a second vessel for containing a solvent.Type: GrantFiled: April 28, 2003Date of Patent: February 8, 2005Assignees: Infineon Technologies Richmond, LP, Brewer Science IncorporatedInventors: William Roberts, Marlene Strobl, Paul Williams, Douglas J. Guerrero, Alice F. Martin
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Patent number: 6846612Abstract: New polymers and new anti-reflective compositions containing such polymers are provided. The compositions comprise a polymer (e.g., epoxy cresol novolac resins) bonded with a chromophore (4-hydroxybenzoic acid, trimellitic anhydride). The inventive compositions can be applied to substrates (e.g., silicon wafers) to form anti-reflective coating layers having high etch rates which minimize or prevent reflection during subsequent photoresist exposure and developing.Type: GrantFiled: February 1, 2002Date of Patent: January 25, 2005Assignee: Brewer Science Inc.Inventor: Shreeram V. Deshpande
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Patent number: 6756418Abstract: New polymers, compositions comprising these polymers, and methods of using these compositions are provided. The polymers comprise styrene and maleic anhydride monomers with at least some of the maleic anhydride monomers having certain functional groups bonded thereto. Preferred functional groups include those derived from adhesion promoters (e.g., 2-aminophenol), photoinitiators (e.g., 4-aminoacetophenone), and solubilizers (e.g., 4-aminobenzoic acid). The polymers can be incorporated according to conventional processes into compositions which are then used to form a color filter to be used in a liquid crystal display. The final color filter has a high resolution, is highly resistant to solvents typically used in the color filter manufacturing process, is strongly adhered to the color filter substrate, has superior optical clarity, is highly soluble in a wide range of alkali developers, and has excellent heat and UV light stability.Type: GrantFiled: June 7, 2002Date of Patent: June 29, 2004Assignee: Brewer Science Inc.Inventors: Gu Xu, Dan W. Brewer, Timothy Limmer, Mike Stroder, Shelly Fowler, Jonathon Mayo
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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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Patent number: 6737203Abstract: New polymers, compositions comprising these polymers, and methods of using these compositions are provided. The polymers comprise styrene and maleic anhydride monomers with at least some of the maleic anhydride monomers having certain functional groups bonded thereto. Preferred functional groups include those derived from adhesion promoters (e.g., 2-aminophenol), photoinitiators (e.g., 4-aminoacetophenone), and solubilizers (e.g., 4-aminobenzoic acid). The polymers can be incorporated according to conventional processes into compositions which are then used to form a color filter to be used in a liquid crystal display. The final color filter has a high resolution, is highly resistant to solvents typically used in the color filter manufacturing process, is strongly adhered to the color filter substrate, has superior optical clarity, is highly soluble in a wide range of alkali developers, and has excellent heat and UV light stability.Type: GrantFiled: February 25, 2002Date of Patent: May 18, 2004Assignee: Brewer Science Inc.Inventors: Gu Xu, Dan W. Brewer, Timothy Limmer, Mike Stroder, Shelly Fowler, Jonathon Mayo
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Publication number: 20040072420Abstract: The present invention relates to an anti-reflective coating composition characterized by comprising a resin made from triazine compounds having at least two nitrogen atoms substituted a hydroxymethyl group and/or an alkoxymethyl group, and a light absorbing compound and/or a light absorbing resin. The present invention offers an anti-reflective coating composition for the anti-reflective coating having high light absorption property of the light used for the lithography process in the preparation of semiconductor device, showing high reflective light preventing effect, being used at thinner film thickness more than before, and having greater dry etching rate in comparison to photoresist layer.Type: ApplicationFiled: October 15, 2002Publication date: April 15, 2004Applicant: Brewer Science, IncInventors: Tomoyuki Enomoto, Keisuke Nakayama, Rama Puligadda
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Patent number: 6716767Abstract: The present invention is directed towards planarization materials that produce little or no volatile byproducts during the hardening process when used in contact planarization processes. The materials can be hardened by photo-irradiation or by heat during the planarization process, and they include one or more types of monomers, oligomers, or mixtures thereof, an optional cross-linker, and an optional organic reactive solvents. The solvent, if used, is chemically reacted with the monomers or oligomers and thus becomes part of the polymer matrix during the curing process. These materials can be used for damascene, dual damascene, bi-layer, and multi-layer applications, microelectromechanical system (MEMS), packaging, optical devices, photonics, optoelectronics, microelectronics, and sensor devices fabrication.Type: GrantFiled: October 28, 2002Date of Patent: April 6, 2004Assignee: Brewer Science, Inc.Inventors: Wu-Sheng Shih, James E. Lamb, III, Mark Daffron
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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: 20040058278Abstract: A method for forming an anti-reflective coating on a semiconductor substrate, including providing a first vessel containing an anti-reflective coating component and a second vessel containing a solvent. The anti-reflective coating component from the first vessel and the solvent from the second vessel are supplied to a mixing chamber. The anti-reflective coating component and the solvent are mixed in the mixing chamber to form a product. The product is transferred to the semiconductor substrate. The product is applied to the semiconductor substrate to form the anti-reflective coating. A system for forming an anti-reflective coating on a semiconductor substrate, including a first vessel for containing an anti-reflective coating component and a second vessel for containing a solvent.Type: ApplicationFiled: April 28, 2003Publication date: March 25, 2004Applicants: Infineon Technologies Richmond, LP, Brewer Science IncorporatedInventors: William Roberts, Marlene Strobl, Paul Williams, Douglas J. Guerrero, Alice F. Martin