For Printed Or Integrated Electrical Circuit, Or Semiconductor Device Patents (Class 510/175)
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Patent number: 12084628Abstract: Described is a composition comprising as primary surfactant an ionic compound comprising one or more fluoroalkyl groups and as secondary surfactant at least one non-ionic compound comprising one or more polyalkyloxy and/or polyalkylenoxy groups, for cleaning or rinsing a product, preferably a product used in the semiconductor industry, and a respective use of said composition. Further described is a method of making a cleaned or rinsed product, preferably a product used in the semiconductor industry, comprising a substrate and supported thereon a patterned material layer having line-space structures with a line width of 50 nm or below, comprising the step of cleaning or rinsing said product with the composition of the invention.Type: GrantFiled: November 26, 2018Date of Patent: September 10, 2024Assignee: BASF SEInventors: I Chen Chou, Andreas Klipp, Berthold Ferstl
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Patent number: 12044974Abstract: A photoresist-removing composition includes a polar organic solvent, an alkyl ammonium hydroxide, an aliphatic amine not including a hydroxy group, and a monovalent alcohol. To manufacture a semiconductor device, a photoresist pattern may be formed on a substrate, and the photoresist-removing composition may then be applied to the photoresist pattern. To manufacture a semiconductor package, a photoresist pattern including a plurality of via holes may be formed on a substrate. A plurality of conductive posts including a metal may be formed inside the plurality of via holes, and the photoresist pattern may be removed by applying a photoresist-removing composition of the inventive concept to the photoresist pattern. A semiconductor chip may be adhered to the substrate between the respective conductive posts.Type: GrantFiled: January 6, 2022Date of Patent: July 23, 2024Assignees: SAMSUNG ELECTRONICS CO., LTD., KPX CHEMICAL CO., LTDInventors: Hyojin Yun, Seungwon Kim, Taeyoung Kim, Woojung Park, Jinhye Bae, Hyunseop Shin, Mintae Lee, Hoon Han, Moonyoung Kim, Moonchang Kim, Cheolmo Yang, Yunseok Choi
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Patent number: 11970672Abstract: A semiconductor wafer cleaning composition for used in a semiconductor device manufacturing process and a method of cleaning a semiconductor wafer using the cleaning composition are provided. The cleaning composition includes surfactants represented by Formula 1 and Formula 2, respectively, an organic or inorganic acid, and water occupying for the remaining proportion. The cleaning method is a method of immersing a semiconductor wafer in the cleaning composition for 100 to 500 seconds. The cleaning composition and the cleaning method according to the present disclosure provide an incredibility improved removal rate and an effective cleaning power for contaminants, especially organic wax, during a process of polishing the surface of a wafer used to manufacture semiconductor devices, thereby providing a super-cleaned wafer surface, resulting in production of reliable semiconductor devices.Type: GrantFiled: February 10, 2020Date of Patent: April 30, 2024Assignee: YOUNG CHANG CHEMICAL CO., LTDInventors: Seung Hun Lee, Seung Hyun Lee, Seong Hwan Kim, Seung Oh Jin
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Patent number: 11951743Abstract: A method for producing a silicon substrate comprising a silicon base material; and a wiring formation layer laminated on a base material surface of the silicon base material, and being provided with a wiring member, an electrode member comprising a noble metal, and a close contact member comprising a base metal between the wiring member and the electrode member, wherein the method comprises a step of forming a deposition film by a fluorocarbon gas, in etching of the silicon substrate; and a removal step of removing, by a removal solution, the deposition film formed by the fluorocarbon gas; the removal solution comprises a primary amine and an organic polar solvent; a content of water in the removal solution is 10 mass % or lower; and a content of tetramethylammonium hydroxide in the removal solution is 1 mass % or lower.Type: GrantFiled: July 19, 2022Date of Patent: April 9, 2024Assignee: Canon Kabushiki KaishaInventor: Atsunori Terasaki
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Patent number: 11905491Abstract: In general, the invention provides high pH cleaning compositions for dielectric surfaces such as PETEOS, SiO2, thermal oxide, silicon nitride, silicon, etc. The compositions of the invention afford superior surface wetting, dispersion of particles and organic residues, and prevents redeposition and re-agglomeration of the dispersed residue during cleaning to afford superior cleaning and low defectivity.Type: GrantFiled: October 1, 2021Date of Patent: February 20, 2024Assignee: ENTEGRIS, INC.Inventors: Daniela White, YoungMin Kim, Michael L. White
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Patent number: 11905490Abstract: An object of the present invention is to provide a cleaning liquid that effectively removes in a short time organic residues and abrasive grains derived from a slurry in a semiconductor substrate in which a Co contact plug and/or Co wiring are present. The present invention relates to a cleaning liquid composition for cleaning a substrate having a Co contact plug and/or Co wiring, which contains one or more reducing agents and water. Furthermore, the present invention relates to a cleaning liquid composition for cleaning a substrate having Co and not having Cu, which contains one or more reducing agents and water and has a pH of 3 or more and less than 12.Type: GrantFiled: September 19, 2019Date of Patent: February 20, 2024Assignee: Kanto Kagaku Kabushiki KaishaInventor: Areji Takanaka
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Patent number: 11905499Abstract: Provided is a high-purity isopropyl alcohol in which the concentration of a C7-12 acetal compound is 100 ppb or less on a mass basis, the concentration of the acetal compound in an accelerated test involving heating for 4 hours at 80° C. in a nitrogen atmosphere is increased by a factor of 30 or less with respect to the value thereof prior to heating, and the concentration of the acetal compound is maintained at a value of 100 ppb or less on a mass basis. Also provided is a method for manufacturing said high-purity isopropyl alcohol.Type: GrantFiled: September 30, 2019Date of Patent: February 20, 2024Assignee: TOKUYAMA CORPORATIONInventors: Shunsuke Hosaka, Masanari Ishizuki
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Patent number: 11899369Abstract: A treatment liquid for a semiconductor device includes an alkanolamine; a hydroxylamine; an organic solvent; Ca; Fe; and Na, wherein the content of the alkanolamine in the treatment liquid is 0.1% to 5% by mass, the content of the hydroxylamine in the treatment liquid is 0.1% to 30% by mass, and each of the mass ratio of Ca, Fe, and Na with respect to the content of the alkanolamine and the hydroxylamine in the treatment liquid is 10?12 to 10?4.Type: GrantFiled: May 6, 2022Date of Patent: February 13, 2024Assignee: FUJIFILM CorporationInventors: Tomonori Takahashi, Tetsuya Kamimura
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Patent number: 11898123Abstract: This disclosure relates to a cleaning composition that contains 1) at least one redox agent; 2) at least one chelating agent, the chelating agent being a polyaminopolycarboxylic acid; 3) at least one corrosion inhibitor, the corrosion inhibitor being a substituted or unsubstituted benzotriazole; 4) at least one sulfonic acid; and 5) water.Type: GrantFiled: August 27, 2021Date of Patent: February 13, 2024Assignee: Fujifilm Electronic Materials U.S.A., Inc.Inventors: Emil A. Kneer, Thomas Dory, Atsushi Mizutani
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Patent number: 11884900Abstract: The present disclosure relates to cleaning compositions that are used to clean semiconductor substrates. These cleaning compositions can remove the defects/contaminants arising from previous processing on the semiconductor substrates and thereby make the substrates appropriate for further processing. The cleaning compositions described herein primarily contain at least one pH adjusting agent and at least one biosurfactant.Type: GrantFiled: August 25, 2021Date of Patent: January 30, 2024Assignee: Fujifilm Electronic Materials U.S.A., Inc.Inventors: Zachary L. Schaefer, Eric Turner, Carl Ballesteros
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Patent number: 11859152Abstract: To provide a substrate pattern filling composition capable of suppressing pattern collapse and a method for using the same. A substrate pattern filling composition comprising a first solute (A), a second a solute (B) and a solvent (C), and a method for using the same.Type: GrantFiled: April 15, 2020Date of Patent: January 2, 2024Assignee: Merck Patent GmbHInventors: Yuko Horiba, Hiroko Kuboki, Tatsuro Nagahara
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Patent number: 11851638Abstract: Provided is a means capable of sufficiently removing organic residues on the surface of an object to be polished after polishing. A surface treatment composition includes a polymer having a building block represented by Formula (1) in [Chemical Formula 1], a chelating agent, and water and is used to treat the surface of an object to be polished after polishing, and the chelating agent has at least one of a phosphonic acid group and a carboxylic acid group. In Formula (1), R1 is a hydrocarbon group having 1 to 5 carbon atoms; and R2 is a hydrogen atom or a hydrocarbon group having 1 to 3 carbon atoms.Type: GrantFiled: August 3, 2021Date of Patent: December 26, 2023Assignee: FUJIMI INCORPORATEDInventors: Tsutomu Yoshino, Sonosuke Ishiguro
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Patent number: 11845912Abstract: The present disclosure relates to a cleaning liquid composition and a cleaning method using the same. A polishing slurry composition according to an embodiment of the present disclosure includes: a chelating agent containing an organic salt; and an anionic surfactant.Type: GrantFiled: August 7, 2019Date of Patent: December 19, 2023Assignee: KCTECH CO., LTD.Inventors: Ga Young Jung, Yong Ho Jeong, Kun Hee Park, Young Gon Kim, Young Ho Yoon, Young Lok Yoon
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Patent number: 11845917Abstract: A cleaning composition is disclosed for cleaning residue and/or contaminants from microelectronic devices having same thereon. The composition comprises at least one complexing agent, at least one cleaning additive, at least one pH adjusting agent, water, and at least one oxylamine compound. Advantageously, the compositions show effective cleaning of cobalt-containing substrates and improved cobalt compatibility.Type: GrantFiled: November 25, 2019Date of Patent: December 19, 2023Assignee: ENTEGRIS, INC.Inventors: Daniela White, Donald Frye, Elizabeth Thomas, Jun Liu, Michael White
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Patent number: 11807836Abstract: Provided is a high-purity isopropyl alcohol in which the concentration of a C7-12 acetal compound is 100 ppb or less on a mass basis, the concentration of the acetal compound in an accelerated test involving heating for 4 hours at 80° C. in a nitrogen atmosphere is increased by a factor of 30 or less with respect to the value thereof prior to heating, and the concentration of the acetal compound is maintained at a value of 100 ppb or less on a mass basis. Also provided is a method for manufacturing said high-purity isopropyl alcohol.Type: GrantFiled: September 30, 2019Date of Patent: November 7, 2023Assignee: TOKUYAMA CORPORATIONInventors: Shunsuke Hosaka, Masanari Ishizuki
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Patent number: 11807837Abstract: Provided is a composition having high affinity for the surface of an adhesive, and excellent long-term storage stability. This composition comprises: a quaternary alkylammonium fluoride or a hydrate of a quaternary alkylammonium fluoride; and an aprotic solvent, wherein the aprotic solvent includes (A) an N-substituted amide compound having 4 or more carbon atoms and not containing active hydrogen on a nitrogen atom, and (B) an ether compound.Type: GrantFiled: September 26, 2019Date of Patent: November 7, 2023Assignee: Resonac CorporationInventors: Susumu Nakazaki, Kuniaki Miyahara, Tomoyuki Fukuyo
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Patent number: 11781092Abstract: Provided is a composition which has an excellent affinity with the surface of an adhesive agent and can achieve a high etching rate. The composition according to one embodiment comprises: a quaternary alkylammonium fluoride or a hydrate of a quaternary alkylammonium fluoride; and, as an aprotic solvent, (A) an N-substituted amide compound having no active hydrogen on a nitrogen atom, and (B) a dipropylene glycol dimethyl ether, wherein (B) the dipropylene glycol dimethyl ether has the percentage of a structural isomer represented by formula (1) of at least 50 mass % with respect to the total amount of (B) the dipropylene glycol dimethyl ether.Type: GrantFiled: July 30, 2020Date of Patent: October 10, 2023Assignee: Resonac CorporationInventor: Kotaro Hayashi
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Patent number: 11732217Abstract: A cleaning solution composition and a cleaning method using the cleaning solution composition are provided. The cleaning solution composition includes a chelating agent including a first organic acid and a second organic acid, and an etching agent including a fluoride compound.Type: GrantFiled: July 21, 2021Date of Patent: August 22, 2023Assignee: KCTECH CO., LTD.Inventors: Kun Hee Park, Yong Ho Jeong, Kyong Jin Jung, Young Ho Yun
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Patent number: 11698588Abstract: Provided is a substrate hydrophilizing agent that improves the wettability of a substrate surface with respect to a photoresist. A substrate hydrophilizing agent of the present invention is an agent for hydrophilizing a surface of a substrate on which a pattern is formed through photolithography, and contains at least the following Component (A) and Component (B). Component (A): a water-soluble oligomer having a weight average molecular weight from 100 to less than 10000. Component (B): water. The water-soluble oligomer of Component (A) is preferably a compound represented by the following Formula (a-1): Ra1O—(C3H6O2)n—H??(a-1) (where Ra1 represents a hydrogen atom, a hydrocarbon group which may have a hydroxyl group, or an acyl group; and n is an integer from 2 to 60.Type: GrantFiled: January 30, 2019Date of Patent: July 11, 2023Assignee: DAICEL CORPORATIONInventor: Yuichi Sakanishi
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Patent number: 11649418Abstract: A method for inhibiting a flash point of trans-1,2-dichloroethylene (T-1,2-DCE) and a use of T-1,2-DCE are provided. The T-1,2-DCE has an excellent cleaning effect and is environmental friendly but cannot be used alone because of huge safety hazard caused by its low flash point. 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd) is used to inhibit the flash point of T-1,2-DCE. However, because the actual boiling points of these two substances are quite different, the two substances are easily separated at a slightly-high ambient temperature. Because a boiling point of HCFO-1233zd is extremely low, HCFO-1233zd will escape rapidly, resulting in the loss of inhibition on the flash point. In the present disclosure, T-1,2-DCE and 1-chloro-2,3,3-trifluoropropene are mixed to prepare a mixed solution, and the mixed solution can effectively maintain the inhibition on the flash point of T-1,2-DCE in various ambient temperatures, such that the T-1,2-DCE can be heated to generate a steam for cleaning.Type: GrantFiled: January 21, 2021Date of Patent: May 16, 2023Assignee: ZIBO RHEMA INTERNATIONAL INC.Inventors: Farui Zheng, Yawei Zheng, Panming Jian, Zihan Zheng
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Patent number: 11629315Abstract: An aqueous composition includes (A) from 0.0001 to 10 mass % of one or more kinds of compounds selected from a C4-13 alkylphosphonic acid, a C4-13 alkylphosphonate ester, a C4-13 alkyl phosphate and a salt thereof, with respect to the total amount of the aqueous composition; and (B) from 0.0001 to 50 mass % of an acid other than the C4-13 alkylphosphonic acid, the C4-13 alkylphosphonate ester and the C4-13 alkyl phosphate or a salt thereof, with respect to the total amount of the aqueous composition.Type: GrantFiled: April 25, 2019Date of Patent: April 18, 2023Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Toshiyuki Oie, Takahiro Kikunaga, Akinobu Horita, Kenji Yamada
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Process liquid composition for extreme ultraviolet lithography and pattern forming method using same
Patent number: 11624984Abstract: A processing solution composition for reducing micro-bridge defects in a polyhydroxystyrene-containing photoresist pattern defined by an extreme-ultraviolet exposure source and a method of forming a pattern using the same are proposed. The processing solution composition includes 0.0001 to 1 wt % of an alkaline material, 0.0001 to 1 wt % of a nonionic surfactant having an HLB (Hydrophilic-Lipophilic Balance) value of 9 to 16, and 98 to 99.9998 wt % of water, reduces the number of micro-bridge defects in a polyhydroxystyrene-containing photoresist pattern defined by an extreme-ultraviolet exposure source, and has a low LWR (Line Width Roughness) value, thus effectively improving the uniformity of the pattern.Type: GrantFiled: May 22, 2019Date of Patent: April 11, 2023Assignee: YOUNG CHANG CHEMICAL CO., LTDInventors: Su Jin Lee, Seung Hun Lee, Seung Hyun Lee -
Patent number: 11618867Abstract: This disclosure relates to a cleaning composition that contains 1) hydroxylamine; 2) a chelating agent; 3) an alkylene glycol; and 4) water. This disclosure also relates to a method of using the above composition for cleaning a semiconductor substrate.Type: GrantFiled: November 2, 2022Date of Patent: April 4, 2023Assignee: Fujifilm Electronic Materials U.S.A., Inc.Inventors: Tomonori Takahashi, Bing Du, William A. Wojtczak, Thomas Dory, Emil A. Kneer
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Patent number: 11613720Abstract: An aqueous composition includes (A) from 0.001 to 20 mass % of one or more kinds of fluorine-containing compounds selected from tetrafluoroboric acid, hexafluorosilicic acid, hexafluoroaluminic acid, hexafluorotitanic acid and a salt thereof, with respect to the total amount of the aqueous composition; and (B) from 0.0001 to 10 mass % of one or more kinds of compounds selected from a C4-13 alkylphosphonic acid, a C4-13 alkylphosphonate ester, a C4-13 alkyl phosphate and a salt thereof, with respect to the total amount of the aqueous composition.Type: GrantFiled: April 25, 2019Date of Patent: March 28, 2023Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Toshiyuki Oie, Akinobu Horita, Takahiro Kikunaga, Kenji Yamada
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Patent number: 11603512Abstract: The present disclosure relates to cleaning compositions that can be used to clean semiconductor substrates. These cleaning compositions can be used to remove defects arising from previous processing steps on these semiconductor substrates. These cleaning compositions can remove the defects/contaminants from the semiconductor substrates and thereby make the substrates appropriate for further processing. The cleaning compositions described herein primarily contain at least one organic acid and at least one anionic polymer.Type: GrantFiled: March 18, 2021Date of Patent: March 14, 2023Assignee: Fujifilm Electronic Materials U.S.A., Inc.Inventors: Abhudaya Mishra, Carl Ballesteros, Eric Turner
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Patent number: 11572533Abstract: A method for producing a quaternary alkylammonium hypochlorite solution includes a preparation step of preparing a quaternary alkylammonium hydroxide solution, and a reaction step of bringing the quaternary alkylammonium hydroxide solution into contact with chlorine, wherein a carbon dioxide concentration in a gas phase portion in the reaction step is 100 ppm by volume or less, and pH of a liquid phase portion in the reaction step is 10.5 or more.Type: GrantFiled: May 20, 2019Date of Patent: February 7, 2023Assignee: Tokuyama CorporationInventors: Takafumi Shimoda, Yuki Kikkawa, Takayuki Negishi, Seiji Tono
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Patent number: 11549086Abstract: Provided are a cleaning agent and a preparation method and the use thereof. The cleaning agent is prepared from the following raw materials comprising the following mass fraction of components: 0.5%-20% of an oxidant containing iodine, 0.5%-20% of an etchant containing boron, 1%-50% of a pyrrolidinone solvent, 1%-20% of a corrosion inhibitor, 0.01%-5% of a metal ion-free surfactant, and water, with the sum of the mass fraction of each component being 100%, the pH of the cleaning agent is 7.5-13.5, and the corrosion inhibitor is one or more of a benzotriazole corrosion inhibitor, a hydrazone corrosion inhibitor, a carbazone corrosion inhibitor and a thiocarbohydrazone corrosion inhibitor. The cleaning agent can efficiently remove nitrides from hard mask residues with little effects on metals and low-? dielectric materials, and has a good selectivity.Type: GrantFiled: December 15, 2017Date of Patent: January 10, 2023Assignee: SHANGHAI SINYANG SEMICONDUCTOR MATERIALS CO., LTD.Inventors: Su Wang, Chuang Jiang, Qiangqiang Feng
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Patent number: 11525085Abstract: A process for controlling the heat generated during the manufacture an inhibited hydrofluoric acid aqueous composition comprising: hydrofluoric acid in solution; a weak base; and an alkanolamine; said process comprising the steps of: providing a pre-determined amount of weak base; adding a pre-determined amount of said hydrofluoric acid to said weak base and obtaining a solution; adding said alkanolamine to the resulting solution of hydrofluoric acid and weak base; mixing until all components are dissolved; wherein said alkanolamine and hydrofluoric acid are present in a molar ratio of at least 1:1.Type: GrantFiled: June 4, 2021Date of Patent: December 13, 2022Assignee: Fluid Energy Group Ltd.Inventors: Clay Purdy, Markus Weissenberger, Karl W. Dawson, Kyle G. Wynnyk
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Patent number: 11453734Abstract: An object of the present invention is to provide a treatment liquid for patterning a resist film and a pattern forming method, each of which can accomplish suppression of generation of defects on a pattern and reduction in bridge defects of the pattern at the same time. The pattern forming method of an embodiment of the present invention is a pattern forming method by forming a resist film on a substrate using a resist composition including at least a resin whose polarity increases by the action of an acid, a photoacid generator, and a solvent, exposing the resist film, and then treating the exposed resist film with a treatment liquid to form a pattern, in which the treatment liquid includes two or more organic solvents, a boiling point of at least one organic solvent of the two or more organic solvents is 120° C. to 155° C., a content of the organic solvent having a boiling point of 120° C. to 155° C.Type: GrantFiled: April 29, 2019Date of Patent: September 27, 2022Assignee: FUJIFILM CorporationInventors: Tetsuya Kamimura, Michihiro Shirakawa, Tadashi Oomatsu
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Patent number: 11453818Abstract: Colloid and/or micelle nano-sizing compositions including a nano-sizing solvent system comprising one or more sesquiterpene solvents, and a nano-sizing activator system comprising one or more dibasic esters, surfactant systems containing colloid and/or micelle nano-sizing compositions, treating/fracturing/completion fluids containing the colloid and/or micelle nano-sizing compositions and methods for making and using same.Type: GrantFiled: April 10, 2020Date of Patent: September 27, 2022Assignee: NexTier Completion Solutions Inc.Inventors: Sarkis Kakadjian, Amanda Flowers, Richard Arriaga, Duane S. Treybig
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Patent number: 11448966Abstract: The present invention discloses a photoresist-removing solution comprising of an N-containing compound and an organic substance in a mass ratio of 1:(0.5-150). The N-containing compound includes at least one of the followings: tetraalkylammonium hydroxide, ammonia, liquid ammonia, and a mixture of ammonia and water; wherein the tetraalkylammonium hydroxide has the general formula (I): wherein R1, R2, R3, R4 is an alkyl with 1 to 4 carbons, respectively. The organic substance is an organic substance having at least one electron-withdrawing functional group. The present invention mixes a specific kind of N-containing compound and a specific kind of organic substance in a certain ratio, and preferably adds a certain amount of water, so that the removal liquid in the present application has an extremely excellent photoresist-removing effect.Type: GrantFiled: August 2, 2018Date of Patent: September 20, 2022Assignee: HUAYING RESEARCH CO., LTDInventors: Sophia Z. Wen, Fucheng Sun, Zhikai Wang
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Patent number: 11447725Abstract: Disclosed herein are a solvent composition and methods of using the solvent composition. The solvent composition includes at least 80 wt. % of trans-1,2-dichloroetheylene (t-DCE), and 0.1 to 20 wt. % of at least one organic compound. The organic compound may be a hydrocarbon and/or an oxygenated solvent. The solvent composition may be used to clean a surface by contacting the surface with the composition to dissolve a contaminant on the surface. The composition may be used to remove a coating from a surface of a substrate by contacting the surface with the solvent composition to dissolve the coating and removing the composition containing the coating from the surface. The composition may also be used to deposit material on a substrate by dissolving the material in the solvent composition, applying the composition containing the material onto the substrate, and evaporating the composition from the substrate.Type: GrantFiled: January 29, 2021Date of Patent: September 20, 2022Assignee: SHELLEF HOLDINGS INC.Inventor: Dov Shellef
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Patent number: 11441109Abstract: The present invention can provide a cleaning solution containing 0.2-20 mass % of an amine compound (A), 40-70 mass % of a water-soluble organic solvent (B), and water, wherein the amine compound (A) contains at least one selected from the group consisting of n-butylamine, hexylamine, octylamine, 1,4-butanediamine, dibutylamine, 3-amino-1-propanol, N,N-diethyl-1,3-diaminopropane, and bis(hexamethylene)triamine, and the water-soluble organic solvent (B) has a viscosity of 10 mPa·s or less at 20° C. and a pH of 9.0-14.Type: GrantFiled: March 5, 2019Date of Patent: September 13, 2022Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Takahiro Kikunaga, Hiroaki Horie, Kimihiro Aoyama, Nobuo Tajima
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Patent number: 11421157Abstract: Compositions useful for the selective removal of silicon nitride materials relative to polysilicon, silicon oxide materials and/or silicide materials from a microelectronic device having same thereon are provided. The compositions of the invention are particularly useful in the etching of 3D NAND structures.Type: GrantFiled: August 21, 2020Date of Patent: August 23, 2022Assignee: ENTEGRIS, INC.Inventors: Daniela White, David Kuiper, Susan Dimeo
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Patent number: 11407966Abstract: This disclosure relates to a cleaning composition that contains 1) hydroxylamine, 2) an amino alcohol, 3) hexylene glycol, and 4) water.Type: GrantFiled: January 26, 2022Date of Patent: August 9, 2022Assignee: Fujifilm Electronic Materials U.S.A., Inc.Inventors: Thomas Dory, Mick Bjelopavlic, Joshua Guske, Kazutaka Takahashi
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Patent number: 11410859Abstract: The present invention provides a treatment liquid for a semiconductor device, which has excellent temporal stability of residue removal performance as well as excellent anticorrosion performance for an object to be treated. The treatment liquid of an aspect of the present invention is a treatment liquid for a semiconductor device contains one or more hydroxylamine compounds selected from the group consisting of hydroxylamine and a hydroxylamine salt, an organic basic compound, an alcohol-based solvent, and a surfactant, in which a content of the alcohol-based solvent with respect to a total mass of the treatment liquid is 40% to 85% by mass, and a pH is 8 or higher.Type: GrantFiled: September 22, 2020Date of Patent: August 9, 2022Assignee: FUJIFILM CorporationInventors: Tetsuya Kamimura, Tomonori Takahashi
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Patent number: 11397383Abstract: A treatment liquid for a semiconductor device contains an organic alkali compound, a corrosion inhibitor, an organic solvent, Ca, Fe, and Na, in which each of the mass ratio of the Ca, the mass ratio of the Fe, and the mass ratio of the Na to the organic alkali compound in the treatment liquid is 10—12 to 10?4. A method for washing a substrate and a method for removing a resist use the treatment liquid.Type: GrantFiled: November 14, 2018Date of Patent: July 26, 2022Assignee: FUJIFILM CorporationInventors: Tomonori Takahashi, Tetsuya Kamimura
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Patent number: 11390829Abstract: A treatment liquid for cleaning a semiconductor wafer is a treatment liquid contains (A) a hypochlorite ion and (C) a solvent, in which pH at 25° C. is more than 7 and less than 12.0. A method for removing ruthenium and tungsten from a semiconductor wafer and cleaning the semiconductor wafer includes bringing the treatment liquid into contact with the semiconductor wafer containing ruthenium or tungsten is provided.Type: GrantFiled: January 15, 2019Date of Patent: July 19, 2022Assignee: TOKUYAMA CORPORATIONInventors: Takafumi Shimoda, Takayuki Negishi, Yuki Kikkawa, Seiji Tono
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Patent number: 11390577Abstract: Provided is a method of producing a quaternary alkyl ammonium hypochlorite solution with an excellent storage stability. Specifically, provided is a method of producing a quaternary alkyl ammonium hypochlorite solution, the method including: a preparation step in which a quaternary alkyl ammonium hydroxide solution is prepared and the concentration of amines in the quaternary alkyl ammonium hydroxide solution is set to 20 ppm by mass or less; and a reaction step in which the quaternary alkyl ammonium hydroxide solution is brought into contact with chlorine gas, wherein the concentration of carbon dioxide of a gas phase in the reaction step is 100 ppm by volume or less and the pH of a liquid phase in the reaction step is 10.5 or more.Type: GrantFiled: November 20, 2020Date of Patent: July 19, 2022Assignee: TOKUYAMA CORPORATIONInventors: Takafumi Shimoda, Yuki Kikkawa, Tomoaki Sato, Takayuki Negishi
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Patent number: 11377627Abstract: The present invention provides a means by which it is possible to sufficiently suppress an organic residue while favorably decreasing a ceria residue on a polished object to be polished obtained after being polished using a polishing composition containing ceria. The present invention relates to a composition for surface treatment, which is for a surface treatment of a polished object to be polished obtained after being polished using a polishing composition containing ceria, contains a carboxy group-containing (co)polymer having a structural unit derived from a monomer having a carboxy group or a salt group of the carboxy group, a SOx or NOy partial structure-containing compound having a partial structure represented by SOx or NOy (where x and y each independently denote a real number 1 to 5), and a dispersing medium, and has a pH of 1 or more and 8 or less.Type: GrantFiled: January 23, 2018Date of Patent: July 5, 2022Assignee: FUJIMI INCORPORATEDInventors: Yukinobu Yoshizaki, Koichi Sakabe, Satoru Yarita, Kenichi Komoto
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Patent number: 11380543Abstract: A substrate is provided with a monocrystalline silicon-germanium layer with a first surface covered by a protective oxide obtained by wet process and having a degradation temperature. The protective oxide is transformed into fluorinated salt which is then eliminated. The substrate is placed in a processing chamber at a lower temperature than the degradation temperature and is subjected to a temperature ramp up to a higher temperature than the degradation temperature. The first surface is annealed in a hydrogen atmosphere devoid of silicon, germanium and precursors of the materials forming the target layer. When the temperature ramp is applied, a silicon precursor is inserted in the processing chamber between a loading temperature and the degradation temperature to deposit a monocrystalline buffer layer. A mono-crystalline target layer is deposited by chemical vapour deposition.Type: GrantFiled: December 17, 2019Date of Patent: July 5, 2022Assignees: COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, UNIVERSITÉ GRENOBLE ALPES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Pierre-Edouard Raynal, Pascal Besson, Jean-Michel Hartmann, Virginie Loup, Laurent Vallier
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Patent number: 11377624Abstract: A cleaning composition for post-etch or post ash residue removal from a substrate used in semiconductor industry and a corresponding use of said cleaning composition is described. Further described is a process for the manufacture of a semiconductor device from a semiconductor substrate, comprising the step of post-etch or post ash residue removal from a substrate by contacting the substrate with a cleaning composition according to the invention.Type: GrantFiled: December 5, 2018Date of Patent: July 5, 2022Assignee: BASF SEInventors: Jhih Jheng Ke, Andreas Klipp, Yi Ping Cheng, Joannes Theodorus Valentinus Hoogboom
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Patent number: 11307500Abstract: A method for removing a resist layer is provided. A resist layer is formed with a material comprising a metal oxide core with organic ligands. A chlorine-containing compound or a methyl group-containing compound is globally applied onto the resist layer to allow the chlorine-containing compound or the methyl group-containing compound to perform a ligand exchange process with the resist layer so as to remove the resist layer through sublimation.Type: GrantFiled: April 10, 2019Date of Patent: April 19, 2022Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventor: Christine Y Ouyang
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Patent number: 11306248Abstract: A silicon etching solution including a component which is a quaternary ammonium hydroxide represented by Formula (A-1), and a component which is a nonionic surfactant, in which an HLB value of the quaternary ammonium hydroxide is in a range of 12 to 15; in Formula (A-1), R1 to R4 each independently represent a monovalent hydrocarbon group, and the total number of carbon atoms contained in R1 to R4 is 10 or greater.Type: GrantFiled: June 18, 2020Date of Patent: April 19, 2022Assignee: Tokyo Ohka Kogyo Co., Ltd.Inventors: Ming-Yen Chung, Masaru Takahama
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Patent number: 11286444Abstract: This disclosure relates to a cleaning composition that contains 1) at least one redox agent; 2) at least one first chelating agent, the first chelating agent being a polyaminopolycarboxylic acid; 3) at least one metal corrosion inhibitor, the metal corrosion inhibitor being a substituted or unsubstituted benzotriazole; 4) at least one pH adjusting agent, the pH adjusting agent being a base free of a metal ion; and 5) water. This disclosure also relates to a method of using the above composition for cleaning a semiconductor substrate.Type: GrantFiled: August 20, 2020Date of Patent: March 29, 2022Assignee: Fujifilm Electronic Materials U.S.A., Inc.Inventors: Tomonori Takahashi, Bing Du, William A. Wojtczak, Thomas Dory, Emil A. Kneer
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Patent number: 11261337Abstract: A coating, a method for coating surfaces, and the coated surfaces. The method includes providing a substrate with a cleaned metal surface; contacting and coating the metal surface with an aqueous composition having a ph of from 0.5 to 7.0 and in the form of a dispersion and/or a suspension; optionally rinsing the organic coating; and drying and/or baking the organic coating, or optionally drying the organic coating and coating same with a similar or another coating composition thereto. The composition contains a complex fluoride in a quantity of 1.1 10?6 mol/l to 0.30 mol/l based on the cations. An anionic polyelectrolyte in a quantity of 0.01 to 5.0 wt % based on the total mass of the resulting mixture is added to an anionically stabilized dispersion made of film-forming polymers and/or a suspension made of film-forming inorganic particles.Type: GrantFiled: July 16, 2019Date of Patent: March 1, 2022Assignee: CHEMETALL GMBHInventors: Daniel Wasserfallen, Michael Schwamb, Aliaksandr Frenkel, Vera Sotke, Wolfgang Bremser, Martin Droll, Ron Eilinghoff, Stephanie Gerold, Evgenija Niesen, Lars Schachtsiek, Manuel Traut, Oliver Seewald
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Patent number: 11230668Abstract: The present invention provides an etchant less causing damage to IGZOs. The etchant of the present invention comprises hydroxyethanediphosphonic acid (A), one or more phosphonic acids (B), hydrogen peroxide (C), nitric acid (D), a fluorine compound (E), an azole (F), and an alkali (G), and is characterized in that the phosphoric acids (B) comprise one or more phosphonic acids selected from the group consisting of diethylenetriaminepentamethylenephosphonic acid, N,N,N?,N?-ethylenediaminetetrakismethylenephosphonic acid, and aminotrimethylenephosphonic acid and that the proportion of the hydroxyethanediphosphonic acid (A) is in the range of 0.01-0.1 mass % and the proportion of the phosphonic acids (B) is in the range of 0.003-0.04 mass %.Type: GrantFiled: March 26, 2018Date of Patent: January 25, 2022Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Youzou Yamada, Toshiyuki Goto
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Patent number: 11192786Abstract: A composition including hydrogen peroxide is provided, which can be used for semiconductor device manufacturing and which exhibits an excellent storage stability and has a reduced effect of defects on a semiconductor substrate. Further, a method is provided for producing the composition including hydrogen peroxide, and a composition reservoir for storing the composition. The composition includes hydrogen peroxide, an acid, and an Fe component, in which the content of the Fe component is 10?5 to 102 in terms of mass ratio with respect to the content of the acid.Type: GrantFiled: October 25, 2018Date of Patent: December 7, 2021Assignee: FUJIFILM CorporationInventor: Tetsuya Kamimura
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Patent number: 11193094Abstract: The present invention relates to: a liquid composition suitable for the washing of a semiconductor element provided with a low-dielectric-constant interlayer insulating film; and a method for washing a semiconductor element. The liquid composition according to the present invention is characterized by containing tetrafluoroboric acid (A) in an amount of 0.01 to 30% by mass, or boric acid (B1) and hydrogen fluoride (B2) at a (boric acid)/(hydrogen fluoride) ratio of (0.0001 to 5.0/by mass)/(0.005 to 5.0% by mass), and having a pH value of 0.0 to 4.0. The liquid composition according to the present invention can reduce the damage of a low-dielectric-constant interlayer insulating film, cobalt or a cobalt alloy, alumina, a zirconia-based hard mask and a silicon nitride during the process of producing a semiconductor integrated circuit, and accordingly can be used suitably for removing dry etching residues occurring on the surface of the semiconductor integrated circuit.Type: GrantFiled: July 24, 2018Date of Patent: December 7, 2021Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Toshiyuki Oie, Priangga Perdana Putra, Akinobu Horita
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Patent number: 11180719Abstract: The invention relates to the use of a non-aqueous composition comprising an organic solvent and at least one particular siloxane-type additive for treating substrates comprising patterns having line-space dimensions of 50 nm or below and aspect ratios of 4 or more as well as a method for manufacturing integrated circuit devices, optical devices, micromachines and mechanical precision devices, the said method comprising the steps of (1) providing a substrate having patterned material layers having line-space dimensions of 50 nm, aspect ratios of greater or equal 4, or a combination thereof, (2) contacting the substrate at least once with a non-aqueous composition, and (3) removing the non-aqueous composition from the contact with the substrate, wherein the non-aqueous composition comprising an organic solvent and at least one of such siloxane-type additives.Type: GrantFiled: October 29, 2018Date of Patent: November 23, 2021Assignee: BASF SEInventors: Daniel Loeffler, Mei Chin Shen, Sheng Hsuan Wei, Frank Pirrung, Lothar Engelbrecht, Yeni Burk, Andreas Klipp, Marcel Brill, Szilard Csihony