Patents by Inventor Liang Ji

Liang Ji 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: 10211108
    Abstract: A method for fabricating a semiconductor structure includes forming a plurality of dummy gate structures on a substrate. Each dummy gate structure includes a gate dielectric layer, a dummy gate electrode, and two sidewall spacers. The method also includes forming a dielectric layer on the substrate between neighboring dummy gate structures and removing a portion of each dummy gate electrode to form a first opening. The first opening is surrounded by a remaining portion of the dummy gate electrode and the two sidewall spacers. The method further includes removing a portion of each sidewall spacer along a direction perpendicular to the sidewall of the first opening to form a second opening, removing the remaining portion of the gate electrode on the bottom of each second opening to form a third opening, and then filling each third opening with a gate electrode material to form a gate electrode.
    Type: Grant
    Filed: August 10, 2017
    Date of Patent: February 19, 2019
    Assignees: SEMICONDUCTOR MANUFACTURING INTERNATIONAL (SHANGHAI) CORPORATION, SEMICONDUCTOR MANUFACTURING INTERNATIONAL (BEIJING) CORPORATION
    Inventors: Qiu Hua Han, Shi Liang Ji, Yan Wang
  • Patent number: 10199496
    Abstract: A semiconductor device capable of high-voltage operation includes a semiconductor substrate, a first well region, a second well region, a first gate structure, a first doped region, a second doped region, and a second gate structure. The first well region is formed in a portion of the semiconductor substrate. The second well region is formed in a portion of the first well region. The first gate structure is formed over a portion of the second well region and a portion of the first well region. The first doped region is formed in a portion of the second well region. The second doped region is formed in a portion of the first well region. The second gate structure is formed over a portion of the first gate structure, a portion of the first well region, and a portion of the second doped region.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: February 5, 2019
    Assignee: MEDIATEK INC.
    Inventors: Cheng-Hua Lin, Yan-Liang Ji, Chih-Wen Hsiung
  • Publication number: 20190029754
    Abstract: The present invention provides a catheter apparatus with a carrier comprising right-handed wire helixes and left-handed wire helixes that are plainly or bi-axially woven into a tubular structure. A therapeutic assembly wraps around one of the wire helixes to stabilize an associated interstice of the tubular structure. The regular shape of the carrier may be quickly recovered after the carrier is seriously bent or distorted in an intravascular treatment.
    Type: Application
    Filed: September 30, 2018
    Publication date: January 31, 2019
    Applicant: Shanghai Golden Leaf Medtech Co., Ltd.
    Inventors: Yonghua Dong, Meijun Shen, Liang Ji
  • Patent number: 10177225
    Abstract: The electronic component includes a semiconductor substrate, a first doped region, a second doped region, a gate structure, a dielectric layer and a conductive portion. The semiconductor substrate has an upper surface. first doped region embedded in the semiconductor substrate. The second doped region is embedded in the semiconductor substrate. The gate structure is formed on the upper surface. The dielectric layer is formed above the upper surface and located between the first doped region and the second doped region. The conductive portion is formed on the dielectric layer.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: January 8, 2019
    Assignee: MEDIATEK INC.
    Inventors: Yan-Liang Ji, Cheng-Hua Lin, Puo-Yu Chiang
  • Publication number: 20180261515
    Abstract: A method for fabricating a semiconductor structure includes providing a substrate including a first region and a second region, forming a dielectric layer with a first opening in the first region and a second opening in the second region, forming a functional layer, forming a first doped layer containing first work function adjusting ions in the first opening, forming a second doped layer containing second work function adjusting ions in the second opening, performing an annealing process to diffuse the first work function adjusting ions into the functional layer in the first opening and the second work function adjusting ions into the functional layer in the second opening, removing the first doped layer and the second doped layer, forming a work function layer in both the first opening and the second opening, and forming a gate electrode layer in each of the first opening and the second opening.
    Type: Application
    Filed: March 7, 2018
    Publication date: September 13, 2018
    Inventors: Yan WANG, Shi Liang JI, Hai Yang ZHANG
  • Publication number: 20180240794
    Abstract: A semiconductor device includes a semiconductor substrate and a passive component. The passive component is formed on the semiconductor substrate and includes a first polysilicon (poly) layer, a salicide blockage (SAB) layer and a first salicide layer. The SAB layer is formed on the first poly layer. The first salicide layer is formed on the SAB layer.
    Type: Application
    Filed: August 15, 2017
    Publication date: August 23, 2018
    Inventors: Yan-Liang Ji, Cheng-Hua Lin, Chih-Chung Chiu
  • Publication number: 20180148308
    Abstract: The present disclosure provides an amplitude limiting system of insulated aerial work platform, including an insulated aerial work platform having a telescopic arm, an insulated folding arm and retractable supporting legs, a luffing cylinder, a first pressure sensor, a balance valve, a selector valve, a flow meter, and a controller; the luffing cylinder is installed between the telescopic arm and the insulated folding arm and includes a hydraulic pressure chamber; the first pressure sensor is connected to the hydraulic pressure chamber of the luffing cylinder and is electrically connected to the controller; the balancing valve is arranged on the luffing cylinder; the selector valve is connected to the balance valve; the flow meter is connected in between the selector valve with the balance valve and is electrically connected to the controller.
    Type: Application
    Filed: March 24, 2016
    Publication date: May 31, 2018
    Inventors: HONGHAI YIN, LIANG JI, ZHEN XU, JIANJUN HE, ZEHUA ZHANG
  • Patent number: 9953954
    Abstract: A Wafer-level chip scale package (WLCSP) includes a semiconductor structure and a first bonding pad formed over a portion of the semiconductor structure. The WLCSP further includes a passivation layer formed over the semiconductor structure and the first bonding pad, exposing portions of the first bonding pad. The WLCSP further includes a conductive redistribution layer formed over the passivation layer and the portions of the first bonding pad exposed by the passivation layer. The WLCSP further includes a planarization layer formed over the passivation layer and the conductive redistribution layer, exposing a portion of the conductive redistribution layer. The WLCSP further includes an under-bump-metallurgy (UBM) layer formed over the planarization layer and a conductive bump formed over the UBM layer.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: April 24, 2018
    Assignee: MEDIATEK INC.
    Inventors: Yan-Liang Ji, Ming-Jen Hsiung
  • Publication number: 20180047638
    Abstract: A method for fabricating a semiconductor structure includes forming a plurality of dummy gate structures on a substrate. Each dummy gate structure includes a gate dielectric layer, a dummy gate electrode, and two sidewall spacers. The method also includes forming a dielectric layer on the substrate between neighboring dummy gate structures and removing a portion of each dummy gate electrode to form a first opening. The first opening is surrounded by a remaining portion of the dummy gate electrode and the two sidewall spacers. The method further includes removing a portion of each sidewall spacer along a direction perpendicular to the sidewall of the first opening to form a second opening, removing the remaining portion of the gate electrode on the bottom of each second opening to form a third opening, and then filling each third opening with a gate electrode material to form a gate electrode.
    Type: Application
    Filed: August 10, 2017
    Publication date: February 15, 2018
    Inventors: Qiu Hua HAN, Shi Liang JI, Yan WANG
  • Publication number: 20170354462
    Abstract: Disclosed are a radio-frequency ablation catheter having a spiral structure and device thereof. The radio-frequency ablation catheter has an elongated catheter body. A spiral electrode support is arranged at the front end of the catheter body. Multiple electrodes are arranged on the electrode support. A control handle is arranged at the rear end of the catheter body. Wall-attachment adjusting wires having various structures can be arranged in the radio-frequency ablation catheter, so that the radio-frequency ablation catheter having a spiral structure can be adapted to target vessels of different diameters, and so that the electrodes on the electrode support have a good wall-attachment state.
    Type: Application
    Filed: February 3, 2016
    Publication date: December 14, 2017
    Inventors: Yonghua DONG, Meijun SHEN, Liang JI, Jun JIANG
  • Patent number: 9825168
    Abstract: A semiconductor device includes a semiconductor substrate and a first well region formed in the semiconductor substrate. An insulator is formed in and over a portion of the first well region and a second well region is formed in the first well region at a first side of the insulator. A first doped region is formed in the second well region, and a second doped region is formed in the first well region at a second side opposite the first side of the insulator. A gate structure is formed over the insulator, the first well region between the second well region and the insulator, and the second well region. An isolation element is formed in the semiconductor substrate, surrounding the first well region and the second well region. The first and second doped regions are formed with asymmetric configurations from a top view.
    Type: Grant
    Filed: March 15, 2016
    Date of Patent: November 21, 2017
    Assignee: MEDIATEK INC.
    Inventors: Cheng Hua Lin, Yan-Liang Ji
  • Publication number: 20170263764
    Abstract: A semiconductor device capable of high-voltage operation includes a semiconductor substrate, a first well region, a second well region, a first gate structure, a first doped region, a second doped region, and a second gate structure. The first well region is formed in a portion of the semiconductor substrate. The second well region is formed in a portion of the first well region. The first gate structure is formed over a portion of the second well region and a portion of the first well region. The first doped region is formed in a portion of the second well region. The second doped region is formed in a portion of the first well region. The second gate structure is formed over a portion of the first gate structure, a portion of the first well region, and a portion of the second doped region.
    Type: Application
    Filed: January 20, 2017
    Publication date: September 14, 2017
    Inventors: Cheng-Hua LIN, Yan-Liang JI, Chih-Wen HSIUNG
  • Publication number: 20170263717
    Abstract: A semiconductor device capable of high-voltage operation includes a semiconductor substrate having a first conductivity type. A first well doped region is formed in a portion of the semiconductor substrate. The first well doped region has a second conductivity type. A first doped region is formed on the first well doped region, having the second conductivity type. A second doped region is formed on the first well doped region and is separated from the first doped region, having the second conductivity type. A first gate structure is formed over the first well doped region and is adjacent to the first doped region. A second gate structure is formed beside the first gate structure and is close to the second doped region. A third gate structure is formed overlapping a portion of the first gate structure and a first portion of the second gate structure.
    Type: Application
    Filed: February 6, 2017
    Publication date: September 14, 2017
    Inventors: Cheng Hua LIN, Yan-Liang JI
  • Publication number: 20170263523
    Abstract: A wafer-level chip-size package includes a semiconductor structure. A bonding pad is formed over the semiconductor structure, including a plurality of conductive segments. A conductive component is formed over the semiconductor structure, being adjacent to the bonding pad. A passivation layer is formed, exposing a portions of the conductive segments of the first bonding pad. A conductive redistribution layer is formed over the portions of the conductive segments of the first bonding pad exposed by the passivation layer. A planarization layer is formed over the passivation layer and the conductive redistribution layer, exposing a portion of the conductive redistribution layer. A UBM layer is formed over the planarization layer and the portion of the conductive redistribution layer exposed by the planarization layer. A conductive bump is formed over the UBM layer.
    Type: Application
    Filed: October 6, 2016
    Publication date: September 14, 2017
    Inventors: Yan-Liang JI, Ming-Jen HSIUNG
  • Publication number: 20170224415
    Abstract: A radiofrequency ablation catheter having a meshed tubular stent structure and an apparatus thereof, include a meshed tubular stent disposed at a front end of the catheter. The meshed tubular stent comprises and including a meshed tube (1). Both ends of the meshed tube are tapered to form a distal end and a proximal end of the meshed tubular stent. The intermediate segment of the meshed tubular stent has a contracted state and an expanded state. One or more electrodes (2) are fixed onto the intermediate segment. The radiofrequency ablation catheter has improved flexibility and provides great coverage for the blood vessels with different thicknesses and curves. When the meshed tubular stent expands in the blood vessels having different thicknesses of 4-12 mm, all of the electrodes (2) contact the walls. Moreover, when the meshed tubular stent expands in the curved blood vessels, all of the electrodes are ensured to contact the walls.
    Type: Application
    Filed: June 16, 2015
    Publication date: August 10, 2017
    Inventors: Yonghua DONG, Meijun SHEN, Liang JI, Zhengmin SHI
  • Publication number: 20170162540
    Abstract: A Wafer-level chip scale package (WLCSP) includes a semiconductor structure and a first bonding pad formed over a portion of the semiconductor structure. The WLCSP further includes a passivation layer formed over the semiconductor structure and the first bonding pad, exposing portions of the first bonding pad. The WLCSP further includes a conductive redistribution layer formed over the passivation layer and the portions of the first bonding pad exposed by the passivation layer. The WLCSP further includes a planarization layer formed over the passivation layer and the conductive redistribution layer, exposing a portion of the conductive redistribution layer. The WLCSP further includes an under-bump-metallurgy (UBM) layer formed over the planarization layer and a conductive bump formed over the UBM layer.
    Type: Application
    Filed: September 23, 2016
    Publication date: June 8, 2017
    Inventors: Yan-Liang JI, Ming-Jen HSIUNG
  • Publication number: 20170047398
    Abstract: The electronic component includes a semiconductor substrate, a first doped region, a second doped region, a gate structure, a dielectric layer and a conductive portion. The semiconductor substrate has an upper surface. first doped region embedded in the semiconductor substrate. The second doped region is embedded in the semiconductor substrate. The gate structure is formed on the upper surface. The dielectric layer is formed above the upper surface and located between the first doped region and the second doped region. The conductive portion is formed on the dielectric layer.
    Type: Application
    Filed: July 11, 2016
    Publication date: February 16, 2017
    Inventors: Yan-Liang Ji, Cheng-Hua Lin, Puo-Yu Chiang
  • Publication number: 20170033214
    Abstract: A MOS transistor structure is provided. The MOS transistor structure includes a semiconductor substrate having an active area including a first edge and a second edge opposite thereto. A gate layer is disposed on the active area of the semiconductor substrate and has a first edge extending across the first and second edges of the active area. A source region having a first conductivity type is in the active area at a side of the first edge of the gate layer and between the first and second edges of the active area. First and second heavily doped regions of a second conductivity type are in the active area adjacent to the first and second edges thereof, respectively, and spaced apart from each other by the source region.
    Type: Application
    Filed: April 26, 2016
    Publication date: February 2, 2017
    Inventors: Cheng Hua LIN, Yan-Liang JI
  • Publication number: 20160351705
    Abstract: A semiconductor device includes a semiconductor substrate and a first well region formed in the semiconductor substrate. An insulator is formed in and over a portion of the first well region and a second well region is formed in the first well region at a first side of the insulator. A first doped region is formed in the second well region, and a second doped region is formed in the first well region at a second side opposite the first side of the insulator. A gate structure is formed over the insulator, the first well region between the second well region and the insulator, and the second well region. An isolation element is formed in the semiconductor substrate, surrounding the first well region and the second well region. The first and second doped regions are formed with asymmetric configurations from a top view.
    Type: Application
    Filed: March 15, 2016
    Publication date: December 1, 2016
    Inventors: Cheng Hua LIN, Yan-Liang JI
  • Patent number: 9281992
    Abstract: The disclosure provides a method for identifying a storage device, which includes: obtaining, by a master control server, disk information of a storage device through a storage server; determining, by the master control server, that there is a storage device matching a device identifier according to the disk information, and entering a monitoring state; otherwise, creating a device identifier for the storage device and entering the monitoring state. The disclosure also provides a system for identifying a storage device. Through the method and the system, the storage devices are uniformly identified so as to facilitate unified management of the storage devices.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: March 8, 2016
    Assignee: ZTE Corporation
    Inventors: Shengzhong Han, Aimin Lei, Liang Ji