Patents Examined by Margaret D Klunk
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Patent number: 9011703Abstract: A method for manufacturing a touch screen panel includes forming first and second conductive layers on a substrate, forming a photosensitive layer on the second conductive layer, exposing the photosensitive layer using a first mask having a first light shielding pattern that corresponds to sensing electrodes and lines to be formed, removing the photosensitive layer at the first exposed portion, sequentially removing the second and first conductive layers at the first exposed portion using the first remaining photosensitive layer as a mask, exposing the photosensitive layer using a second mask having a second light shielding pattern that corresponds to the lines to be formed, removing the photosensitive layer at the second exposed portion, removing the second conductive layer at the second exposed portion using the second remaining photosensitive layer as a mask, thereby forming the sensing electrodes and the lines, and removing the second remaining photosensitive layer.Type: GrantFiled: April 16, 2013Date of Patent: April 21, 2015Assignee: Samsung Display Co., Ltd.Inventor: Sang-Min Baek
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Patent number: 9005460Abstract: The present invention provides methods of selectively removing one or more graphene layers from a graphene material by: (1) applying a metal to a surface of the graphene material; and (2) applying a hydrogen containing solution to the surface of the graphene material that is associated with the metal. The hydrogen containing solution dissolves the metal along with one or more layers of graphene associated with the metal, thereby removing the layer(s) of graphene from the graphene material. In some embodiments, the hydrogen containing solution is an acidic solution, such as hydrochloric acid. In some embodiments, the metal is zinc. In some embodiments, the methods of the present invention are utilized to selectively remove one or more layers of graphene from one or more targeted sites on the surface of a graphene material.Type: GrantFiled: October 11, 2011Date of Patent: April 14, 2015Assignee: William Marsh Rice UniversityInventors: James M. Tour, Ayrat M. Dimiev, Dmitry V. Kosynkin
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Patent number: 8999177Abstract: Out-of-plane microneedle manufacturing process comprising the simultaneous creation of a network of microneedles and the creation of a polygonal shaped hat (2) above each microneedle (1) under formation, said process comprising the following steps: providing bridges (3) between the hats (3), maintaining the bridges (3) during the remaining microneedle manufacturing steps, removing the bridges (3), together with the hats (2), when the microneedles (1) are formed.Type: GrantFiled: October 17, 2008Date of Patent: April 7, 2015Assignee: Debiotech S.A.Inventors: Astrid Cachemaille, Francois Cannehan
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Patent number: 8980113Abstract: A method for chemical mechanical polishing of a substrate includes polishing the substrate at a stock removal rate of greater than about 2.5 ?/min to achieve a Ra of not greater than about 5.0 ?. The substrate can be a III-V substrate or a SiC substrate. The polishing utilizes a chemical mechanical polishing slurry comprising ultra-dispersed diamonds and at least 80 wt % water.Type: GrantFiled: March 12, 2010Date of Patent: March 17, 2015Assignee: Saint-Gobain Ceramics & Plastics, Inc.Inventors: Jun Wang, Ronald W. Laconto, Andrew G. Haerle
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Patent number: 8962492Abstract: A method to thin an initial silicon-on-insulator substrate that has a layer of silicon oxide buried between a silicon carrier substrate and a silicon surface layer.Type: GrantFiled: April 20, 2010Date of Patent: February 24, 2015Assignee: SoitecInventors: Patrick Reynaud, Ludovic Ecarnot, Khalid Radouane
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Patent number: 8961805Abstract: A method for performing dry etching on a metal film containing Pt via a mask layer includes performing dry etching on the metal film by generating a plasma of an etching gas including a gaseous mixture of H2 gas, CO2 gas, methane gas and rare gas. With the dry etching method, it is possible to make a vertical sidewall of a hole or trench more vertical without using a halogen gas.Type: GrantFiled: October 19, 2012Date of Patent: February 24, 2015Assignee: Tokyo Electron LimitedInventors: Eiichi Nishimura, Takashi Sone
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Patent number: 8937017Abstract: Embodiments of the invention relate to a substrate etching method and apparatus. In one embodiment, a method for etching a substrate in a plasma etch reactor is provided that include flowing a backside process gas between a substrate and a substrate support assembly, and cyclically etching a layer on the substrate.Type: GrantFiled: January 29, 2010Date of Patent: January 20, 2015Assignee: Applied Materials, Inc.Inventors: Alan Cheshire, Stanley Detmar
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Patent number: 8926859Abstract: A polishing composition for a silicon wafer includes a macromolecular compound, an abrasive, and an aqueous medium. The macromolecular compound includes a constitutional unit (a1) represented by the following general formula (1), a constitutional unit (a2) represented by the following general formula (2), and a constitutional unit (a3) represented by the following general formula (3). The total of the constitutional unit (a3) is 0.001 to 1.5 mol % of all the constitutional units of the macromolecular compound.Type: GrantFiled: July 5, 2010Date of Patent: January 6, 2015Assignee: Kao CorporationInventors: Masahiko Suzuki, Mami Okamura, Toshiaki Oi
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Patent number: 8900477Abstract: Provided are a metal-polishing liquid that comprises an oxidizing agent, an oxidized-metal etchant, a protective film-forming agent, a dissolution promoter for the protective film-forming agent, and water; a method for producing it; and a polishing method of using it. Also provided are materials for the metal-polishing liquid, which include an oxidized-metal etchant, a protective film-forming agent, and a dissolution promoter for the protective film-forming agent.Type: GrantFiled: January 17, 2008Date of Patent: December 2, 2014Assignees: Hitachi, Ltd., Hitachi Chemical Company, Ltd.Inventors: Takeshi Uchida, Tetsuya Hoshino, Hiroki Terazaki, Yasuo Kamigata, Naoyuki Koyama, Yoshio Honma, Seiichi Kondoh
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Patent number: 8900473Abstract: The CMP polishing liquid of the present invention contains 1,2,4-triazole, a phosphoric acid, an oxidant, and abrasive particles. The polishing method of the present invention is a substrate polishing method for polishing a substrate with a polishing cloth while supplying a CMP polishing liquid between the substrate and the polishing cloth, in which the substrate is a substrate having a palladium layer, and the CMP polishing liquid is a CMP polishing liquid containing 1,2,4-triazole, a phosphoric acid, an oxidant, and abrasive particles.Type: GrantFiled: July 23, 2009Date of Patent: December 2, 2014Assignee: Hitachi Chemical Company, Ltd.Inventors: Hisataka Minami, Ryouta Saisyo, Hiroshi Ono
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Patent number: 8901004Abstract: A method of producing plurality of etched features in an electronic device is disclosed that avoids micro-loading problems thus maintaining more uniform sidewall profiles and more uniform critical dimensions. The method comprises performing a first time-divisional plasma etch process step within a plasma chamber to a first depth of the plurality of etched features, and performing a flash process step to remove any polymers from exposed surfaces of the plurality of etched features without requiring an oxidation step. The flash process step is performed independently of the time-divisional plasma etch step. A second time-divisional plasma etch process step is performed within the plasma chamber to a second depth of the plurality of etched features. The method may be repeated until a desired etch depth is reached.Type: GrantFiled: July 20, 2010Date of Patent: December 2, 2014Assignee: Lam Research CorporationInventors: Tom Kamp, Qian Fu, I. C. Jang, Linda Braly, Shenjian Liu
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Patent number: 8894877Abstract: A liquid composition for wet etching has improved selectivity for polysilicon over silicon dioxide, even when the polysilicon is heavily doped and/or the silicon dioxide is a low temperature oxide. The composition comprises 0.05-0.4 percent by weight hydrofluoric acid, 15-40 percent by weight nitric acid, 55-85 percent by weight sulfuric acid and 2-20 percent by weight water. A method and apparatus for wet etching using the composition are also disclosed.Type: GrantFiled: October 19, 2011Date of Patent: November 25, 2014Assignee: Lam Research AGInventor: Stefan Detterbeck
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Patent number: 8871109Abstract: A donor wafer, for example of silicon, has an irregular surface following cleaving of a lamina from the surface, for example by exfoliation following implant of hydrogen and/or helium ions to define a cleave plane. Pinholes in the lamina leave column asperities at the exfoliated surface of the donor wafer, and the beveled edge may leave an edge asperity which fails to exfoliate. To prepare the surface of the donor wafer for reuse, mechanical grinding removes the column and edge asperities, and minimal additional thickness. Following cleaning, growth and removal of an oxide layer at the surface rounds remaining peaks. The smoothed surface is well adapted to bonding to a receiver element and exfoliation of a new lamina. A variety of devices may be fabricated from the lamina, for example a photovoltaic cell.Type: GrantFiled: September 10, 2009Date of Patent: October 28, 2014Assignee: GTAT CorporationInventors: Gopal Prabhu, Kathy J. Jackson, Orion Leland, Aditya Agarwal
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Patent number: 8828256Abstract: A method for making a carbon nanotube film includes the steps of providing an array of carbon nanotubes, treating the array of carbon nanotubes by plasma, and pulling out a carbon nanotube film from the array of carbon nanotubes treated by the plasma.Type: GrantFiled: January 8, 2009Date of Patent: September 9, 2014Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Chen Feng, Kai Liu, Yong-Chao Zhai, Kai-Li Jiang, Shou-Shan Fan
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Patent number: 8778210Abstract: Compositions useful for the selective removal of silicon nitride materials relative to poly-silicon, silicon oxide materials and/or silicide materials from a microelectronic device having same thereon. The removal compositions include fluorosilicic acid, silicic acid, and at least one organic solvent. Typical process temperatures are less than about 100° C. and typical selectivity for nitride versus oxide etch is about 200:1 to about 2000:1. Under typical process conditions, nickel-based silicides as well as titanium and tantalum nitrides are largely unaffected, and polysilicon etch rates are less than about 1 ? min?1.Type: GrantFiled: December 21, 2007Date of Patent: July 15, 2014Assignee: Advanced Technology Materials, Inc.Inventors: Emanuel I. Cooper, Eileen R. Sparks, William R. Bowers, Mark A. Biscotto, Kevin P. Yanders, Michael B. Korzenski, Prerna Sonthalia, Nicole E. Thomas
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Patent number: 8747682Abstract: According to one embodiment, a pattern formation method is disclosed. The method includes forming a plurality of regions on a foundation and the plurality of the regions correspond to different pattern sizes. The method includes separating each of a plurality of block copolymers from another one of the plurality of the block copolymers and segregating the each of the plurality of the block copolymers into a corresponding one of the regions. The method includes performing a phase separation of the each of the block copolymers of each of the regions. The method includes selectively removing a designated phase of each of the phase-separated block copolymers to form a pattern of the each of the block copolymers and the pattern has a different pattern size for the each of the regions.Type: GrantFiled: August 3, 2010Date of Patent: June 10, 2014Assignee: Kabushiki Kaisha ToshibaInventors: Kentaro Matsunaga, Tomoya Oori, Eishi Shiobara, Yukiko Sato, Yoshihisa Kawamura
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Patent number: 8679985Abstract: A dry etching method for a silicon nitride film capable of improving throughput is provided. A dry etching method for dry-etching a silicon nitride film 103 includes dry-etching the silicon nitride film 103 without generating plasma by using a processing gas containing at least a hydrogen fluoride gas (HF gas) and a fluorine gas (F2 gas), with respect to a processing target object 100 including the silicon nitride film 103.Type: GrantFiled: February 2, 2010Date of Patent: March 25, 2014Assignee: Tokyo Electron LimitedInventors: Eiichi Nishimura, Yusuke Shimizu
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Patent number: 8673788Abstract: A method of fabricating a semiconductor device is illustrated. A substrate having a plurality of trenches is provided. The plurality of trenches include trenches having differing widths. A first layer is formed on the substrate including in the plurality of trenches. Forming the first layer creates an indentation in the first layer in a region overlying a trench (e.g., wide trench). A second layer is formed in the indentation. The first layer is etched while the second layer remains in the indentation. The second layer may protect the region of indentation from further reduction in thickness. In an embodiment, the first layer is polysilicon and the second layer is BARC of photoresist.Type: GrantFiled: July 28, 2010Date of Patent: March 18, 2014Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chung-Hsiu Cheng, Shih-Hao Wu, Chih-Hsien Hsu, Chia-Chi Chung, Wei-Yueh Tseng
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Patent number: 8673785Abstract: A gas distribution system for supplying different gas compositions to a chamber, such as a plasma processing chamber of a plasma processing apparatus is provided. The gas distribution system can include a gas supply section, a flow control section and a switching section. The gas supply section provides first and second gases, typically gas mixtures, to the flow control section, which controls the flows of the first and second gases to the chamber. The chamber can include multiple zones, and the flow control section can supply the first and second gases to the multiple zones at desired flow ratios of the gases. The gas distribution system can continuously supply the first and second gases to the switching section and the switching section is operable to switch the flows of the first and second gases, such that one of the first and second process gases is supplied to the chamber while the other of the first and second gases is supplied to a by-pass line, and then to switch the gas flows.Type: GrantFiled: March 3, 2010Date of Patent: March 18, 2014Assignee: Lam Research CorporationInventors: Zhisong Huang, Jose Tong Sam, Eric H. Lenz, Rajinder Dhindsa, Reza Sadjadi
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Patent number: 8669185Abstract: A method of tailoring conformality of a film deposited on a patterned surface includes: (I) depositing a film by PEALD or pulsed PECVD on the patterned surface; (II) etching the film, wherein the etching is conducted in a pulse or pulses, wherein a ratio of an etching rate of the film on a top surface and that of the film on side walls of the patterns is controlled as a function of the etching pulse duration and the number of etching pulses to increase a conformality of the film; and (III) repeating (I) and (II) to satisfy a target film thickness.Type: GrantFiled: July 30, 2010Date of Patent: March 11, 2014Assignee: ASM Japan K.K.Inventors: Shigeyuki Onizawa, Woo-Jin Lee, Hideaki Fukuda, Kunitoshi Namba