Patents by Inventor Haitao Wang

Haitao Wang 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).

  • Patent number: 10811233
    Abstract: Process chambers having a tunable showerhead and a tunable liner are disclosed herein. In some embodiments, a processing chamber includes a showerhead; a chamber liner; a first impedance circuit coupled to the showerhead to tune an impedance of the showerhead; a second impedance circuit coupled to the chamber liner to tune an impedance of the chamber liner; and a controller coupled to the first and second impedance circuits to control relative impedances of the showerhead and the chamber liner.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: October 20, 2020
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Andrew Nguyen, Xue Yang Chang, Haitao Wang, Kei-Yu Ko, Reza Sadjadi
  • Patent number: 10804888
    Abstract: A delay circuit and an electronic system equipped with the delay circuit are provided. The delay circuit includes an input terminal, an output terminal, a bias current generator and a delay generator. The bias current generator is coupled between a first reference voltage and a second reference voltage, and is configured to generate a bias current. The delay generator is coupled between the first reference voltage and the second reference voltage, and is configured to generate a delay of the delay signal relative to the input signal according to the bias current. The bias current generator includes a current mirror, a current module and a transistor. The delay generator includes a first current mirror sub-circuit, a second current mirror sub-circuit, a transistor, a capacitor, a switch circuit and a Schmitt inverter, wherein the output terminal is coupled to the Schmitt inverter to output the delay signal.
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: October 13, 2020
    Assignee: Artery Technology Co., Ltd.
    Inventors: Zhengxiang Wang, Wenlong Zhang, Haitao Wang
  • Publication number: 20200320187
    Abstract: Methods and devices for using candidate accounts on a computer device may include creating on the computer device, a candidate account representing a blank user profile for use on the computer device. The methods and devices may include automatically logging in the candidate account and locking the computer device. The methods and devices may include creating a user specific isolated environment on the computer device for the candidate account.
    Type: Application
    Filed: April 8, 2019
    Publication date: October 8, 2020
    Inventors: Nathan Jeffrey Ide, Ibrahim Mohammad Ismail, Robert Bradley Gilbert, Haitao Wang, Matthew Jonathan Joplin
  • Patent number: 10784132
    Abstract: A method and apparatus for de-chucking a workpiece is described that uses a swing voltage sequence. One example pertains to a method that includes applying a mechanical force from an electrostatic chuck against the back side of a workpiece that is electrostatically clamped to the chuck, applying a sequence of voltage pulses with a same polarity to the electrodes, each pulse of the sequence having a lower voltage than the preceding pulse, each pulse of the sequence having a lower voltage than the preceding pulse, and determining whether the workpiece is released from the chuck after the sequence of additional voltage pulses and if the workpiece is not released then repeating applying the sequence of voltage pulses.
    Type: Grant
    Filed: February 6, 2019
    Date of Patent: September 22, 2020
    Assignee: Applied Materials, Inc.
    Inventors: Haitao Wang, Wonseok Lee, Sergio Fukuda Shoji, Chunlei Zhang, Kartik Ramaswamy
  • Patent number: 10777683
    Abstract: A thin film transistor, a method of manufacturing the same, an array substrate and a display panel are disclosed. The thin film transistor includes a light blocking layer, an electrode layer, and a combination layer, which are sequentially stacked. The electrode layer includes a gate electrode, a source electrode and a drain electrode which are separated from one another, and the gate electrode is located between the source electrode and the drain electrode. The light blocking layer includes a first portion of which an orthogonal projection is located between an orthogonal projection of the gate electrode and an orthogonal projection of the source electrode; and a second portion of which an orthogonal projection is located between the orthogonal projection of the gate and an orthogonal projection of the drain. The combination layer includes an active layer.
    Type: Grant
    Filed: May 6, 2019
    Date of Patent: September 15, 2020
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yang Zhang, Luke Ding, Bin Zhou, Haitao Wang, Ning Liu, Jingang Fang, Yongchao Huang, Liangchen Yan
  • Patent number: 10770270
    Abstract: An electrostatic chuck is described to carry a workpiece for processing such as high power plasma processing. In embodiments, the chuck includes a top plate to carry the workpiece, the top plate having an electrode to grip the workpiece, a cooling plate under the top plate to cool the top plate, a gas hole through the cooling plate and the top plate to feed a gas to the workpiece through the top plate, and an aperture-reducing plug in the cooling plate gas hole to conduct gas flow through the hole.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: September 8, 2020
    Assignee: Applied Materials, Inc.
    Inventors: Jaeyong Cho, Haitao Wang, Vijay D. Parkhe, Kartik Ramaswamy, Chunlei Zhang
  • Publication number: 20200268310
    Abstract: Embodiments of the present disclosure provide a device for determining a location of a blood vessel and a method thereof. The device includes a plurality of sensors, a processor, and an indicating device. The plurality of sensors may detect pressure values at a plurality of skin locations in contact with the plurality of sensors. The processor may determine the location of the blood vessel based on the pressure values. The pressure value at the skin location corresponding to the location of the blood vessel is greater than the pressure values at both sides of the skin location in a direction perpendicular to a direction of the blood vessel. The indicating device may indicate the location of the blood vessel.
    Type: Application
    Filed: November 29, 2018
    Publication date: August 27, 2020
    Inventors: Qiangqiang LUO, Yingxi TAI, Haitao WANG, Zhenfang LI
  • Publication number: 20200273939
    Abstract: Disclosed are an array substrate, a method for fabricating the same, a display panel, and a display device, and the array substrate includes: an underlying substrate, and gate lines and data lines located on the underlying substrate, and intersecting with each other, a layer where the gate lines are located is between a layer where the data lines are located, and the underlying substrate; and the array substrate further includes a buffer layer located between the underlying substrate and the layer where the gate lines are located; and the buffer layer includes a plurality of through-holes, where orthographical projections of the through-holes onto the underlying substrate cover orthographical projections of the areas where the gate lines intersect with the data lines, onto the underlying substrate.
    Type: Application
    Filed: October 28, 2019
    Publication date: August 27, 2020
    Inventors: Haitao Wang, Qinghe Wang, Jun Wang, Guangyao Li, Yang Zhang, Jun Liu, Dongfang Wang
  • Patent number: 10745807
    Abstract: Embodiments of the present disclosure relate to a showerhead assembly for use in a processing chamber. The showerhead assembly includes a porous insert disposed in a space defined between a gas distribution plate and a base plate to moderate the corrosive radicals resulting from plasma ignition to reduce particle issues and metal contamination in the chamber. The porous insert is a conductive material, such as metal, used to reduce the gap electrical field strength, or may be a dielectric material such as ceramic, polytetrafluoroethylene, polyamide-imide, or other materials with a low dielectric loss and high electrical field strength under conditions of high frequency and strong electric fields. As such, the electrical breakdown threshold is enhanced. The porous insert may reduce and/or eliminate showerhead backside plasma ignition and may include multiple concentric narrow rings that cover gas holes of the gas distribution plate.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: August 18, 2020
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Haitao Wang, Hamid Noorbakhsh, Chunlei Zhang, Sergio Fukuda Shoji, Kartik Ramaswamy, Roland Smith, Brad L. Mays
  • Publication number: 20200251392
    Abstract: Embodiments of the present disclosure provide an array substrate comprising a base substrate, a buffer layer disposed on the base substrate, an interlayer dielectric layer disposed on the buffer layer, and a protection layer disposed on the interlayer dielectric layer, where the array substrate further comprises a plurality of first test units and a plurality of test leads. The plurality of test leads are connected to the plurality of first test units in a one-to-one correspondence, and the plurality of test leads are disposed in at least two different layers. A method for manufacturing an array substrate, a display panel, and a display device are further provided.
    Type: Application
    Filed: November 25, 2019
    Publication date: August 6, 2020
    Inventors: Haitao WANG, Guangyao LI, Jun WANG, Qinghe WANG, Dongfang WANG
  • Publication number: 20200202753
    Abstract: The present disclosure provides a display device including a display panel, a pair of supporting components, a rotating component, a first fixing part and a second fixing part. The display panel comprises: a first side and a second side which are opposite to each other, and the first side is fixedly connected to the first fixing part, and the second side is fixedly connected to the second fixing part. The pair of supporting components comprises: a first supporting component and a second supporting component which are opposite to each other. A first end of the first supporting component is fixedly connected to a first end of the rotating component, and a second end of the first supporting component is fixedly connected to a first end of the second fixing part at the second side of the display panel.
    Type: Application
    Filed: May 30, 2019
    Publication date: June 25, 2020
    Inventors: Bowen QU, Dongling SUN, Haitao WANG, Juncai MA, Hongqiao XU, Jinbo XU
  • Publication number: 20200194470
    Abstract: A display substrate, a method for manufacturing the display substrate, and a display device are provided. The display substrate includes a display area and a fanout area at the periphery of the display area. The fanout area includes a data line layer, a first power line layer, and at least two insulation layers between the data line layer and the first power line layer. In a direction perpendicular to a base substrate of the display substrate, the first power line layer overlaps the data line layer. At least one of the at least two insulation layers includes a portion which insulates the first power line layer and the data line layer from each other.
    Type: Application
    Filed: August 30, 2019
    Publication date: June 18, 2020
    Applicants: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jun WANG, Dongfang WANG, Haitao WANG, Guangyao LI, Yingbin HU, Yang ZHANG, Qinghe WANG, Liangchen YAN
  • Patent number: 10656194
    Abstract: Methods and apparatus for measurement of a surface charge profile of an electrostatic chuck are provided herein. In some embodiments, an apparatus for measurement of a surface charge profile of an electrostatic chuck includes: an electrostatic charge sensor disposed on a substrate to obtain data indicative of an electrostatic charge on an electrostatic chuck; and a transmitter disposed on the substrate and having an input in communication with an output of the electrostatic charge sensor to transmit the data.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: May 19, 2020
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Haitao Wang, Lawrence Wong, Kartik Ramaswamy, Chunlei Zhang
  • Publication number: 20200152799
    Abstract: The present disclosure provides a thin film transistor, a thin film transistor array, and a method for detecting an object to be detected, wherein the thin film transistor is configured to detect a parameter of an object to be detected bound with a metal ion and includes an active layer, wherein: a carrier of the active layer without a metal element contained in the metal ion bound is of a first mobility, and a carrier of the active layer with the metal element bound is of a second mobility different from the first mobility.
    Type: Application
    Filed: July 9, 2019
    Publication date: May 14, 2020
    Inventors: Guangyao LI, Lei HUANG, Haitao WANG, Jun WANG, Qinghe WANG, Wei LI, Dongfang WANG, Liangchen YAN
  • Publication number: 20200106879
    Abstract: A voice communication method, a voice communication apparatus, and a voice communication system are disclosed. The method includes: at a transmitting side, obtaining voice information; determining whether the voice information is uttered by a preset user, and transmitting the voice information to a peer device if it is determined that the voice information is uttered by the preset user, and prohibiting the transmission of the voice information otherwise; and at a receiving side, receiving voice information transmitted from a peer device; collecting a first environmental information, and determining whether the first environmental information meets a voice output condition; outputting the voice information if it is determined that the first environmental information meets the voice output condition, and prohibiting the output of the voice information otherwise.
    Type: Application
    Filed: April 18, 2019
    Publication date: April 2, 2020
    Inventors: Qinghe Wang, Dongfang Wang, Tongshang Su, Leilei Cheng, Wei Song, Yang Zhang, Ning Liu, Haitao Wang, Jun Wang, Guangyao Li
  • Publication number: 20200105627
    Abstract: A thin film transistor, a display substrate and a method for repairing the same, and a display device are provided. The thin film transistor includes: an active region, a gate insulating layer disposed on a side of the active region, and a gate disposed on a side of the gate insulating layer distal to the active region, and the active region includes a first electrode contact region at one end of the active region, a second electrode contact region at the other end of the active region, and a plurality of connection regions between the first electrode contact region and the second electrode contact region, and each of the plurality of connection regions is coupled to the first electrode contact region and the second electrode contact region, and every two adjacent connection regions are provided with an opening therebetween and are spaced apart from each other by the opening.
    Type: Application
    Filed: May 31, 2019
    Publication date: April 2, 2020
    Inventors: Haitao WANG, Guangyao LI, Jun WANG, Qinghe WANG, Ning LIU, Dongfang WANG
  • Publication number: 20200075773
    Abstract: A thin film transistor, a method of manufacturing the same, an array substrate and a display panel are disclosed. The thin film transistor includes a light blocking layer, an electrode layer, and a combination layer, which are sequentially stacked. The electrode layer includes a gate electrode, a source electrode and a drain electrode which are separated from one another, and the gate electrode is located between the source electrode and the drain electrode. The light blocking layer includes a first portion of which an orthogonal projection is located between an orthogonal projection of the gate electrode and an orthogonal projection of the source electrode; and a second portion of which an orthogonal projection is located between the orthogonal projection of the gate and an orthogonal projection of the drain. The combination layer includes an active layer.
    Type: Application
    Filed: May 6, 2019
    Publication date: March 5, 2020
    Applicants: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Yang Zhang, Luke Ding, Bin Zhou, Haitao Wang, Ning Liu, Jingang Fang, Yongchao Huang, Liangchen Yan
  • Publication number: 20200066566
    Abstract: Embodiments include an electrostatic chuck assembly having an electrostatic chuck mounted on an insulator. The electrostatic chuck and insulator may be within a chamber volume of a process chamber. In an embodiment, a ground shield surrounds the electrostatic chuck and the insulator, and a gap between the ground shield and the electrostatic chuck provides an environment at risk for electric field emission. A dielectric filler can be placed within the gap to reduce a likelihood of electric field emission. The dielectric filler can have a flexible outer surface that covers or attaches to the electrostatic chuck, or an interface between the electrostatic chuck and the insulator Other embodiments are also described and claimed.
    Type: Application
    Filed: November 5, 2019
    Publication date: February 27, 2020
    Inventors: Kartik Ramaswamy, Anwar Husain, Haitao Wang, Evans Yip Lee, Jaeyong Cho, Hamid Noorbakhsh, Kenny L. Doan, Sergio Fukuda Shoji, Chunlei Zhang
  • Patent number: 10546731
    Abstract: A method, apparatus and system for dechucking a processing object from a surface of an electrostatic chuck (ESC) in a processing chamber can include applying to the ESC for a first time interval, a first dechuck voltage having a substantially equal magnitude and opposite polarity of a chuck voltage chucking the processing object to the surface of the ESC, selecting a second dechuck voltage having an opposite polarity as the first dechuck voltage, linearly sweeping the ESC voltage from the first dechuck voltage to the second dechuck voltage over a second time interval, monitoring the ESC current during the second time interval until a current spike in the ESC current above a threshold is detected, communicating a command to move support pins up to remove the processing object from the ESC surface, and maintaining the second dechuck voltage until the processing object is separated from the surface of the ESC.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: January 28, 2020
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Haitao Wang, Michael G. Chafin, Kartik Ramaswamy, Yue Guo, Valentin Todorow, Kenny Doan, Sergio F. Shoji, Brad L. Mays, Usama Dadu
  • Patent number: 10538565
    Abstract: This application relates to recombinant human interferon-like proteins. In one embodiment a recombinant protein created by gene shuffling technology is described having enhanced anti-viral and anti-proliferative activities in comparison to naturally occurring human inteferon like alpha 2b (HuIFN-?2b). The invention encompasses a polynucleotide encoding the protein and recombinant vectors and host cells comprising the polynucleotide. Preferably the polynucleotide is selected from the group of polynucleotides each having a sequence at least 93% identical to SEQ ID: No. 1 and the protein is selected from the group of proteins each having an amino acid sequence at least 85% identical to SEQ ID No: 2. The proteins and compositions comprising the proteins can be used for treatment of conditions responsive to interferon, therapy, such as viral diseases and cancer.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: January 21, 2020
    Assignee: Novagen Holding Corporation
    Inventors: Haitao Wang, Chunsheng Mao, Jizhi Li, Ling Wang, Yong Du, Longbin Liu, Jing Xu, Rui Zhang