Patents by Inventor Weinan Jiang
Weinan Jiang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11944106Abstract: A continuous quantitative spraying structure for sterilization of harvested fruits is provided. The continuous quantitative spraying structure includes a track provided thereon with equally spaced trays for conveying fruits, where the trays each include a circular tray body; a central part of the tray body is provided with a central hole allowing the fruit to fall off; a bottom part of the central hole is provided with two parallel rollers; an inner bottom surface of the tray body is provided with a flap; an inner end of a central shaft of the roller passes through the flap, and is fixed to a rolling wheel; a bearing is provided between the roller and the flap; the track is provided with a spraying sterilization section; the spraying sterilization section is sequentially provided with 3 to 4 sets of sterilization nozzles above a tray conveying route.Type: GrantFiled: October 8, 2022Date of Patent: April 2, 2024Assignee: ZHEJIANG UNIVERSITY ZHONGYUAN INSTITUTEInventors: Di Wu, Weinan Huang, Dandan Zheng, Feng Jiang, Chongde Sun, Kunsong Chen
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Publication number: 20240081359Abstract: A continuous quantitative spraying structure for sterilization of harvested fruits is provided. The continuous quantitative spraying structure includes a track provided thereon with equally spaced trays for conveying fruits, where the trays each include a circular tray body; a central part of the tray body is provided with a central hole allowing the fruit to fall off, a bottom part of the central hole is provided with two parallel rollers; an inner bottom surface of the tray body is provided with a flap; an inner end of a central shaft of the roller passes through the flap, and is fixed to a rolling wheel; a bearing is provided between the roller and the flap; the track is provided with a spraying sterilization section; the spraying sterilization section is sequentially provided with 3 to 4 sets of sterilization nozzles above a tray conveying route.Type: ApplicationFiled: October 8, 2022Publication date: March 14, 2024Applicant: ZHEJIANG UNIVERSITY ZHONGYUAN INSTITUTEInventors: Di WU, Weinan HUANG, Dandan ZHENG, Feng JIANG, Chongde SUN, Kunsong CHEN
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Patent number: 10452663Abstract: A group user level association method may obtain user operation information of each user in a group, match the user operation information with a pre-stored user operation-point weight comparison table to obtain a point weight of each user in the group determining a user level of each user in the group according to the point weight, and associates a user in the group with a user level of the user in the group. In addition, a group user level association system is further provided, the technical solution of the present disclosure, as compared with a user level based on an online duration and an active degree, can more truthfully and objectively reflect a level difference between users in a group, so as to improve efficiency of a group owner or an administrator applying or managing the group and increase enthusiasm of using a group operation by a user.Type: GrantFiled: June 28, 2016Date of Patent: October 22, 2019Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITEDInventors: Weinan Jiang, Yang Zhang, Weiquan He
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Publication number: 20160306803Abstract: A group user level association method may obtain user operation information of each user in a group, match the user operation information with a pre-stored user operation-point weight comparison table to obtain a point weight of each user in the group determining a user level of each user in the group according to the point weight, and associates a user in the group with a user level of the user in the group. In addition, a group user level association system is further provided, the technical solution of the present disclosure, as compared with a user level based on an online duration and an active degree, can more truthfully and objectively reflect a level difference between users in a group, so as to improve efficiency of a group owner or an administrator applying or managing the group and increase enthusiasm of using a group operation by a user.Type: ApplicationFiled: June 28, 2016Publication date: October 20, 2016Inventors: Weinan Jiang, Yang Zhang, Weiquan He
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Patent number: 8480913Abstract: The amount of RF power supplied to a plasma in a vacuum plasma processing chamber is gradually changed on a preprogrammed basis in response to signals stored in a computer memory. The computer memory stores signals so that other processing chamber parameters (pressure, gas species and gas flow rates) remain constant while the gradual change occurs. The stored signals enable rounded corners, instead of sharp edges, to be etched, e.g., at an intersection of a trench wall and base.Type: GrantFiled: June 30, 2011Date of Patent: July 9, 2013Assignee: Lam Research CorporationInventors: Tuqiang Ni, Weinan Jiang, Frank Y. Lin, Chung-Ho Huang
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Publication number: 20110253673Abstract: The amount of RF power supplied to a plasma in a vacuum plasma processing chamber is gradually changed on a preprogrammed basis in response to signals stored in a computer memory. The computer memory stores signals so that other processing chamber parameters (pressure, gas species and gas flow rates) remain constant while the gradual change occurs. The stored signals enable rounded corners, instead of sharp edges, to be etched, e.g., at an intersection of a trench wall and base.Type: ApplicationFiled: June 30, 2011Publication date: October 20, 2011Applicant: LAM RESEARCH CORPORATIONInventors: Tuqiang NI, Frank Y. Lin, Chung-Ho Huang, Weinan Jiang
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Patent number: 6855567Abstract: A method for determining an endpoint for etching a layer includes steps of estimating the etch endpoint and, during etch, directing radiant energy at two or more wavelengths onto the layer to be etched, detecting the last intensity maximum reflected at a first wavelength prior to the estimated etch endpoint, and detecting the intensity maximum reflected at a second wavelength first occurring after the last intensity maximum at the first wavelength.Type: GrantFiled: May 31, 2000Date of Patent: February 15, 2005Assignee: Lam Research CorporationInventors: Tuqiang Ni, Andrew Lui, Chung-Ho Huang, Weinan Jiang
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Patent number: 6699399Abstract: A process for etching a substrate 25 in an etching chamber 30, and simultaneously cleaning a thin, non-homogeneous, etch residue deposited on the surfaces of the walls 45 and components of the etching chamber 30. In the etching step, process gas comprising etchant gas is used to etch a substrate 25 in the etching chamber 30 thereby depositing etch residue inside the chamber 30. Cleaning gas is added to the process gas for a sufficient time and in a volumetric flow ratio that is sufficiently high, to react with and remove substantially all the etch residue deposited by the process gas. The present method advantageously cleans the etch residue in the chamber 30, during the etching process, and without use of separate cleaning, conditioning, and seasoning process steps.Type: GrantFiled: September 8, 2000Date of Patent: March 2, 2004Assignee: Applied Materials, IncInventors: Xue-Yu Qian, Zhi-Wen Sun, Weinan Jiang, Arthur Y. Chen, Gerald Zheyao Yin, Ming-Hsun Yang, Ming-Hsun Kuo, David S. L. Mui, Jeffrey Chinn, Shaoher X. Pan, Xikun Wang
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Patent number: 6617257Abstract: A semiconductor manufacturing process wherein an organic antireflective coating is etched with an O2-free sulfur containing gas which provides selectivity with respect to an underlying layer and/or minimizes the lateral etch rate of an overlying photoresist to maintain critical dimensions defined by the photoresist. The etchant gas can include SO2 and a carrier gas such as Ar or He and optional additions of other gases such as HBr. The process is useful for etching 0.25 micron and smaller contact or via openings in forming structures such as damascene structures.Type: GrantFiled: March 30, 2001Date of Patent: September 9, 2003Assignee: Lam Research CorporationInventors: Tuqiang Ni, Weinan Jiang, Conan Chiang, Frank Y. Lin, Chris Lee, Dai N. Lee
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Publication number: 20020182881Abstract: A semiconductor manufacturing process wherein an organic antireflective coating is etched with an O2-free sulfur containing gas which provides selectivity with respect to an underlying layer and/or minimizes the lateral etch rate of an overlying photoresist to maintain critical dimensions defmed by the photoresist. The etchant gas can include SO2 and a carrier gas such as Ar or He and optional additions of other gases such as HBr. The process is useful for etching 0.25 micron and smaller contact or via openings in forming structures such as damascene structures.Type: ApplicationFiled: March 30, 2001Publication date: December 5, 2002Inventors: Tuqiang Ni, Weinan Jiang, Conan Chiang, Frank Y. Lin, Chris Lee, Dai N. Lee
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Publication number: 20020139477Abstract: The amount of RF power supplied to a plasma in a vacuum plasma processing chamber is gradually changed on a preprogrammed basis in response to signals stored in a computer memory. The computer memory stores signals so that other processing chamber parameters (pressure, gas species and gas flow rates) remain constant while the gradual change occurs. The stored signals enable rounded corners, instead of sharp edges, to be etched, e.g., at an intersection of a trench wall and base.Type: ApplicationFiled: March 30, 2001Publication date: October 3, 2002Applicant: Lam Research CorporationInventors: Tuqiang Ni, Frank Y. Lin, Chung-Ho Huang, Weinan Jiang
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Patent number: 6136211Abstract: A process for etching a substrate 25 in an etching chamber 30, and simultaneously cleaning a thin, non-homogeneous, etch residue deposited on the surfaces of the walls 45 and components of the etching chamber 30. In the etching step, process gas comprising etchant gas is used to etch a substrate 25 in the etching chamber 30 thereby depositing etch residue inside the chamber 30. Cleaning gas is added to the process gas for a sufficient time and in a volumetric flow ratio that is sufficiently high, to react with and remove substantially all the etch residue deposited by the process gas. The present method advantageously cleans the etch residue in the chamber 30, during the etching process, and without use of separate cleaning, conditioning, and seasoning process steps.Type: GrantFiled: November 12, 1997Date of Patent: October 24, 2000Assignee: Applied Materials, Inc.Inventors: Xue-Yu Qian, Zhi-Wen Sun, Weinan Jiang, Arthur Y. Chen, Gerald Zheyao Yin, Ming-Hsun Yang, Ming-Hsun Kuo, David S. L. Mui, Jeffrey Chinn, Shaoher X. Pan, Xikun Wang
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Patent number: 5978202Abstract: An electrostatic chuck 75 for holding a substrate 25 in a process chamber 20, comprises an electrostatic member 80 including an insulator having an electrode 95 therein and a receiving surface for receiving the substrate. A base 85 supports the electrostatic member, the base having a first thermal resistance R.sub.B and having a lower surface that rests on the process chamber. A thermal transfer regulator pad 100 is positioned between the receiving surface of the electrostatic member and the lower surface of the base, the thermal pad comprising a second thermal resistance R.sub.P that is sufficiently higher or lower than the thermal resistance R.sub.B of the base, to provide a predetermined temperature profile across a processing surface of the substrate during processing in the chamber.Type: GrantFiled: June 27, 1997Date of Patent: November 2, 1999Assignee: Applied Materials, Inc.Inventors: Ralph M. Wadensweiler, Ajay Kumar, Shashank C. Deshmukh, Weinan Jiang, Rolf A. Guenther
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Patent number: 5893643Abstract: Apparatus for measuring wafer support pedestal temperature in a semiconductor wafer processing system. The apparatus measures infrared energy emitted by the bottom of the pedestal via a tube having one end inserted in a bore through the underside of the cathode pedestal base. The distal end of the tube is coupled to a temperature sensor. Both the tube and temperature sensor are fitted with insulating sleeve adapters to suppress unwanted RF signals from coupling to the sensor.Type: GrantFiled: March 25, 1997Date of Patent: April 13, 1999Assignee: Applied Materials, Inc.Inventors: Ajay Kumar, Jeffrey Chinn, Shashank C. Deshmukh, Weinan Jiang, Brian Duda, Rolf Guenther, Bruce Minaee, Marco Mombelli, Mark Wiltse
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Patent number: 5851926Abstract: An etchant composition of nitrogen trifluoride and chlorine, preferably also including a passivation material such as hydrogen bromide, etches tungsten silicide-polysilicon gate layers with high selectivity to a thin underlying silicon oxide gate oxide layer to form straight wall, perpendicular profiles with low microloading and excellent profile control.Type: GrantFiled: October 1, 1996Date of Patent: December 22, 1998Assignee: Applied Materials, IncInventors: Ajay Kumar, Jeffrey Chinn, Shashank C. Deshmukh, Weinan Jiang, Rolf Adolf Guenther, Bruce Minaee, Mark Wiltse