Patents Examined by Anita Alanko
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Patent number: 9396961Abstract: The embodiments herein relate to methods and apparatus for etching a recessed feature in dielectric material. In various embodiments, a recessed feature is formed in two etching operations. The first etching operation partially etches the features and may take place in a reactor configured to produce a capacitively coupled plasma. The first etching operation may end before the underlying semiconductor material experiences substantial damage due to penetration of ions through the dielectric atop the semiconductor material. The second etching operation may take place in a reactor configured to produce an inductively coupled plasma. Both the first and second etching operations may themselves be multi-step, cyclic processes.Type: GrantFiled: February 2, 2015Date of Patent: July 19, 2016Assignee: Lam Research CorporationInventors: Reza Arghavani, Shashank C. Deshmukh, Eric A. Hudson, Tom Kamp, Samantha Tan, Gerardo Adrian Delgadino
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Patent number: 9384949Abstract: A gas-flow control method for a plasma apparatus is provided. The gas-flow control method includes mounting a first adjusting mechanism on a gas-distribution plate. The gas-distribution plate includes a number of exhaust openings, and the exhaust openings in a first area of the gas-distribution plate are masked by the first adjusting mechanism. The gas-flow control method also includes exhausting a gas from the exhaust openings in a first unmasked area of the gas-distribution plate, and the gas passing through the first adjusting mechanism into a plasma chamber. The gas-flow control method further includes generating an electric field to excite the gas in the plasma chamber into plasma.Type: GrantFiled: August 8, 2014Date of Patent: July 5, 2016Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTDInventors: Zi-Neng Huang, Chang-Sheng Lee, Shen-Chieh Liu, Cherng-Chang Tsuei
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Patent number: 9377616Abstract: A method of manufacturing a support plate including: providing a layer of a first material; providing, using an applied voltage, a layer of a second material on a surface of the layer of the first material; and exposing a part of the surface by removing a part of the layer of the second material.Type: GrantFiled: December 19, 2013Date of Patent: June 28, 2016Assignee: Amazon Technologies, Inc.Inventors: Daniel Figura, Geert Martens, Romaric Mathieu Massard, Bokke Johannes Feenstra
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Patent number: 9371427Abstract: A pattern is formed by forming a first pattern on a first film, forming a block copolymer layer including a first block chain and a second block chain on the first pattern, forming a second pattern, forming a second film on the second pattern, selectively removing the second film until the second pattern is exposed, forming a third pattern, and processing the first film using the third pattern as a mask. The second pattern is formed by microphase-separating the block copolymer layer, and removing the first block chain or the second block chain. The second film is formed by applying a material having an etch rate that is less than an etch rate of a material of the first pattern and the second pattern. The third pattern is formed by selectively removing the second pattern and the first pattern using the second film as a mask.Type: GrantFiled: March 2, 2015Date of Patent: June 21, 2016Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Katsutoshi Kobayashi, Yusuke Kasahara, Hiroki Yonemitsu, Hitoshi Kubota, Ayako Kawanishi
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Patent number: 9373864Abstract: The method for fabricating a lithium microbattery is performed from a stack of layers successively including: a first layer made from a first material, a second layer made from a second material, a solid electrolyte layer and a first electrode. The method further includes etching to form a first pattern made from the first material and a second pattern made from the second material, the second pattern defining a covered area and an uncovered area of the electrolyte layer. The uncovered area is then etched using the second pattern as etching mask. After etching of the first pattern, a lithium-based layer is formed on the second pattern, the lithium-based layer and the second pattern forming a second lithium-based electrode.Type: GrantFiled: July 29, 2014Date of Patent: June 21, 2016Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVEInventors: Sami Oukassi, Arnaud Bazin
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Patent number: 9359212Abstract: A copper foil for producing graphene including Cu having a purity of 99.95% by mass or more.Type: GrantFiled: October 31, 2012Date of Patent: June 7, 2016Assignee: JX Nippon Mining & Metals CorporationInventors: Yoshihiro Chiba, Toshiyuki Ono
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Patent number: 9355863Abstract: A method of etching exposed titanium oxide on heterogeneous structures is described and includes a remote plasma etch formed from a fluorine-containing precursor. Plasma effluents from the remote plasma are flowed into a substrate processing region where the plasma effluents may combine with a nitrogen-containing precursor such as an amine (N:) containing precursor. Reactants thereby produced etch the patterned heterogeneous structures with high titanium oxide selectivity while the substrate is at elevated temperature. Titanium oxide etch may alternatively involve supplying a fluorine-containing precursor and a source of nitrogen-and-hydrogen-containing precursor to the remote plasma. The methods may be used to remove titanium oxide while removing little or no low-K dielectric, polysilicon, silicon nitride or titanium nitride.Type: GrantFiled: August 17, 2015Date of Patent: May 31, 2016Assignee: Applied Materials, Inc.Inventors: Zhijun Chen, Seung Park, Mikhail Korolik, Anchuan Wang, Nitin K. Ingle
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Patent number: 9353313Abstract: Illustrative embodiments of microdevices and methods of manufacturing such microdevices are disclosed. In at least one illustrative embodiment, a method of manufacturing one or more microdevices may include forming a liquid dispersion containing cellulose nanocrystals (CNC), depositing the liquid dispersion containing the CNC on a substrate, drying the liquid dispersion containing the CNC to form a solid film on the substrate, where the liquid dispersion contains a sufficient concentration of CNC to form a continuous solid film having a controlled microstructure, and processing the solid film to form the one or more microdevices on the substrate.Type: GrantFiled: August 9, 2013Date of Patent: May 31, 2016Assignees: Auburn University, Clemson UniversityInventors: William Robert Ashurst, Virginia A. Davis, Christopher L. Kitchens
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Patent number: 9348219Abstract: Provided herein are methods for depositing a spin-on-glass composition over an imprinted resist; curing the spin-on-glass composition to form a cured spin-on-glass composition; and forming a patterned mask by etching the cured spin-on-glass composition, the resist, and an underlying mask composition, wherein the patterned mask comprises features of the cured spin-on-glass composition atop the mask composition, and wherein curing the spin-on-glass composition is configured to prevent shifting or toppling of the spin-on glass composition from atop the mask composition while forming the patterned mask.Type: GrantFiled: February 2, 2015Date of Patent: May 24, 2016Assignee: Seagate Technology LLCInventors: Zhaoning Yu, Nobuo Kurataka, Gennady Gauzner
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Patent number: 9343331Abstract: A method of manufacturing a semiconductor device provided with a stack of a first film substantially free of oxygen and a second film disposed above the first film and comprising a metal oxide containing an uneasily etched material is disclosed. The method includes etching the second film by a first process using a first etch gas containing a boron trichloride containing gas and by a second process following the first process using a second etch gas containing an inert gas. In the second process, the second etch gas is used while a bias power is controlled to be equal to or greater than an etching threshold energy of the second film.Type: GrantFiled: March 11, 2015Date of Patent: May 17, 2016Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Kazuhisa Matsuda, Toshiyuki Sasaki, Mitsuhiro Omura
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Patent number: 9330703Abstract: The invention provides a chemical-mechanical polishing composition comprising alpha alumina, fumed alumina, silica, an oxidizing agent that oxidizes nickel-phosphorous, a complexing agent, and water. The invention also provides a method of chemically-mechanically polishing a substrate comprising contacting a substrate with a polishing pad and the chemical-mechanical polishing composition, moving the polishing pad and the polishing composition relative to the substrate, and abrading at least a portion of the substrate to polish the substrate.Type: GrantFiled: June 4, 2009Date of Patent: May 3, 2016Assignee: Cabot Microelectronics CorporationInventors: Selvaraj Palanisamy Chinnathambi, Haresh Siriwardane
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Patent number: 9315891Abstract: In some embodiments, a method for processing a substrate in a process chamber having a substrate support configured to move in a direction perpendicular to a top surface of a cover ring of a process kit may include positioning the substrate support in a first position such that a top surface of the substrate is positioned about 3 mm above to about 10 mm below a top surface of a cover ring of a process kit disposed about the periphery of the substrate support; performing a plasma deposition process while the substrate support is in the first position; moving the substrate support to a second position such that the top surface of the substrate is disposed about 3 mm below to about 15 mm above the top surface of the cover ring; and performing a plasma etch process while the substrate support is in the second position.Type: GrantFiled: March 15, 2013Date of Patent: April 19, 2016Assignee: APPLIED MATERIALS, INC.Inventors: Joung Joo Lee, William Johanson, Keith A. Miller, Alan A. Ritchie
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Patent number: 9305783Abstract: A nanoimprint lithography method, including: pressing a mold in a photosensitive resin to form at least one imprint pattern defined by a stamped area and an adjacent area, the adjacent area being less stamped or not stamped at all, and being thicker than the stamped area; and exposure to a certain amount of sunlight. Respective thicknesses of the two areas are defined such that the two areas absorb a different amount of the sunlight and the amount of sunlight provided by the exposure is predetermined so as to be great enough to activate the resin in whichever of the two areas has the greater absorption, and so as not to be great enough to activate the other of the two areas.Type: GrantFiled: December 21, 2011Date of Patent: April 5, 2016Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventor: Sebastien Pauliac
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Patent number: 9304235Abstract: Microfabrication processes and apparatuses for fabricating microstructures on a substrate are disclosed. The substrate has a current diffraction grating pattern formed by current surface modulations over at least a portion of the substrate's surface that exhibit a substantially uniform grating linewidth over the surface portion. An immersion depth of the substrate in a fluid for patterning the substrate is gradually changed so that different points on the surface portion are immersed for different immersion times. The fluid changes the linewidth of the surface modulations at each immersed point on the surface portion by an amount determined by the immersion time of that point, thereby changing the current diffraction grating pattern to a new diffraction grating pattern formed by new surface modulations over the surface portion that exhibit a spatially varying grating linewidth that varies over the surface portion.Type: GrantFiled: July 30, 2014Date of Patent: April 5, 2016Assignee: MICROSOFT TECHNOLOGY LICENSING, LLCInventors: Lauri Sainiemi, Tapani Levola, Pasi Saarikko
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Patent number: 9305814Abstract: A method of inspecting a substrate processing apparatus, which is capable of preventing product substrates from being supplied to a substrate processing chamber to be inspected, and inspecting the substrate processing chamber in desired timing. Product wafers W (product substrates) are inhibited from being conveyed into a processing unit to be inspected (substrate processing chamber) according to a selection of a menu option “QC MODE” by an operator, or in response to instruction from a host computer. A QC wafer is permitted to be conveyed from a carrier connected to an associated load port 24 into the processing unit to be inspected, in response to a notification the fact that a wafer stored in the carrier connected to the associated load port 24 is the QC wafer.Type: GrantFiled: December 20, 2005Date of Patent: April 5, 2016Assignee: TOKYO ELECTRON LIMITEDInventor: Masahiro Numakura
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Patent number: 9275834Abstract: A method of removing titanium nitride is described. The silicon nitride resides on a patterned substrate. The titanium nitride is removed with a gas-phase etch using plasma effluents formed in a remote plasma from a fluorine-containing precursor, a nitrogen-and-hydrogen-containing precursor and an oxygen-containing precursor. Plasma effluents within the remote plasma are flowed into a substrate processing region where the plasma effluents react with the titanium nitride.Type: GrantFiled: February 20, 2015Date of Patent: March 1, 2016Assignee: Applied Materials, Inc.Inventors: Seung Park, Mikhail Korolik, Anchuan Wang, Nitin K. Ingle
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Patent number: 9275869Abstract: A method for etching a layer in a plasma chamber with an inner injection zone gas feed and an outer injection zone gas feed is provided. The layer is placed in the plasma chamber. A pulsed etch gas is provided from the inner injection zone gas feed at a first frequency, wherein flow of pulsed etch gas from the inner injection zone gas feed is ramped down to zero. The pulsed etch gas is provided from the outer injection zone gas feed at the first frequency and simultaneous with and out of phase with the pulsed etch gas from the inner injection zone gas feed. The etch gas is formed into a plasma to etch the layer, simultaneous with the providing the pulsed etch gas from the inner injection zone gas feed and providing the pulsed gas from the outer interjection zone gas feed.Type: GrantFiled: August 2, 2013Date of Patent: March 1, 2016Assignee: Lam Research CorporationInventors: Saravanapriyan Sriraman, Alexander Paterson
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Patent number: 9260310Abstract: A copper foil for producing graphene, having 60 degree gloss of 500% in a rolling direction and a direction transverse to rolling direction, and an average crystal grain size of 200 ?m or more after heating at 1000° C. for 1 hour in an atmosphere containing 20% by volume or more of hydrogen and balance argon.Type: GrantFiled: February 20, 2012Date of Patent: February 16, 2016Assignee: JX Nippon Mining & Metals CorporationInventor: Yoshihiro Chiba
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Patent number: 9263287Abstract: A method of forming fin-shaped structures includes the following steps. A plurality of spacers is formed on a substrate. The substrate is etched by using the spacers as hard masks to form a plurality of fin-shaped structures in the substrate. A cutting process is then performed to remove parts of the fin-shaped structures and the spacers formed on the removed parts.Type: GrantFiled: May 27, 2013Date of Patent: February 16, 2016Assignee: UNITED MICROELECTRONICS CORP.Inventors: Po-Chao Tsao, Chien-Ting Lin
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Patent number: 9255347Abstract: A method to control thermal energy transport uses mobile coherent interfaces in nanoscale ferroelectric films to scatter phonons. The thermal conductivity can be actively tuned, simply by applying an electrical potential across the ferroelectric material and thereby altering the density of these coherent boundaries to directly impact thermal transport at room temperature and above. The invention eliminates the necessity of using moving components or poor efficiency methods to control heat transfer, enabling a means of thermal energy control at the micro- and nano-scales.Type: GrantFiled: November 18, 2014Date of Patent: February 9, 2016Assignee: Sandia CorporationInventors: Jon Ihlefeld, Patrick Edward Hopkins