Patents by Inventor Ji Feng

Ji Feng 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).

  • Publication number: 20210134653
    Abstract: A method of forming a semiconductor device includes following steps. Firstly, a substrate is provided and the substrate has a first semiconductor layer formed thereon. Next, an isolating structure is formed in the first semiconductor layer, and a sacrificial layer is formed on the first semiconductor layer by consuming a top portion of the first semiconductor layer. Then, the sacrificial layer is removed to form a second semiconductor layer, and a portion of the isolating structure is also removed to form a shallow trench isolation (STI), with a top surface of the shallow trench isolation being substantially coplanar with a top surface of the second semiconductor layer.
    Type: Application
    Filed: November 4, 2019
    Publication date: May 6, 2021
    Inventors: JI FENG, Yunfei Li, GUOHAI ZHANG, CHING HWA TEY, JINGLING WANG
  • Publication number: 20210117223
    Abstract: A server-based desktop-virtual machines architecture may be extended to a client machine. In one embodiment, a user desktop is remotely accessed from a client system. The remote desktop is generated by a first virtual machine running on a server system, which may comprise one or more server computers. During execution of the first virtual machine, writes to a corresponding virtual disk are directed to a delta disk file or redo log. A copy of the virtual disk is created on the client system. When a user decides to “check out” his or her desktop, the first virtual machine is terminated (if it is running) and a copy of the delta disk is created on the client system. Once the delta disk is present on the client system, a second virtual machine can be started on the client system using the virtual disk and delta disk to provide local access to the user's desktop at the client system. This allows the user to then access his or her desktop without being connected to a network.
    Type: Application
    Filed: December 9, 2020
    Publication date: April 22, 2021
    Inventors: Yaron Halperin, Jad Chamcham, Christian Matthew Leroy, Gerald Cheong, Matthew Eccleston, Ji Feng
  • Patent number: 10939999
    Abstract: An apparatus for replacing a diseased cardiac valve is movable from a radially collapsed configuration to a radially expanded configuration. The apparatus comprises an expandable support member and a prosthetic valve secured therein. The main body portion extends between first and second end portions and includes an outer circumferential surface, a circumferential axis extending about the circumferential surface, and a plurality of wing members spaced apart from one another by an expandable region. Each of the wing members includes first and second end portions and a flexible middle portion extending between the end portions. The second end portion is integrally formed with the uyimain body portion. The first end portion is adjacent the circumferential axis and substantially flush with the outer circumferential surface in the radially collapsed configuration. The first end portion extends substantially radial to the outer circumferential surface in the radially expanded configuration.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: March 9, 2021
    Assignee: THE CLEVELAND CLINIC FOUNDATION
    Inventors: Jose L. Navia, Ji-Feng Chen, Shengqiang Gao, Brian L. Davis, Samantha Stucke
  • Patent number: 10916286
    Abstract: A method of writing to a magnetic random access memory cell includes applying an alternating current signal to the magnetic random access memory cell having a first magnetic orientation, and applying a direct current pulse to the magnetic random access memory cell to change the magnetic orientation of the magnetic random access memory cell from the first magnetic orientation to a second magnetic orientation. The first magnetic orientation and the second magnetic orientation are different.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: February 9, 2021
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Ji-Feng Ying, Jhong-Sheng Wang, Duen-Huei Hou
  • Publication number: 20210036055
    Abstract: A memory device including bit lines, auxiliary lines, selectors, and memory cells is provided. The word lines are intersected with the bit lines. The auxiliary lines are disposed between the word lines and the of bit lines. The selectors are inserted between the bit lines and the auxiliary lines. The memory cells are inserted between the word lines and the auxiliary lines.
    Type: Application
    Filed: January 9, 2020
    Publication date: February 4, 2021
    Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Ji-Feng Ying, Jhong-Sheng Wang, Tsann Lin
  • Patent number: 10896054
    Abstract: A server-based desktop-virtual machines architecture may be extended to a client machine. In one embodiment, a user desktop is remotely accessed from a client system. The remote desktop is generated by a first virtual machine running on a server system, which may comprise one or more server computers. During execution of the first virtual machine, writes to a corresponding virtual disk are directed to a delta disk file or redo log. A copy of the virtual disk is created on the client system. When a user decides to “check out” his or her desktop, the first virtual machine is terminated (if it is running) and a copy of the delta disk is created on the client system. Once the delta disk is present on the client system, a second virtual machine can be started on the client system using the virtual disk and delta disk to provide local access to the user's desktop at the client system. This allows the user to then access his or her desktop without being connected to a network.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: January 19, 2021
    Assignee: VMware, Inc.
    Inventors: Yaron Halperin, Jad Chamcham, Christian Matthew Leroy, Gerald Cheong, Matthew Eccleston, Ji Feng
  • Patent number: 10883820
    Abstract: A method of performing metrology analysis of a thin film includes coupling a radiation into an optical element disposed adjacent to a surface of the thin film. The radiation is coupled such that the radiation is totally internally reflected at an interface between the optical element and the thin film. An evanescent radiation generated at the interface penetrates the thin film. The method furthers include analyzing the evanescent radiation scattered by the thin film to obtain properties of the thin film.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: January 5, 2021
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Baohua Niu, Ji-Feng Ying, David Hung-I Su
  • Patent number: 10868079
    Abstract: A magnetic detection circuit for a magnetic random access memory (MRAM) is provided. The magnetic detection circuit includes a sensing array and a controller. The sensing array includes a plurality of sensing cells, and each of plurality of sensing cells includes a first magnetic tunnel junction (MTJ) device. The controller is configured to periodically write and read the sensing cells to obtain a difference between first data written to the sensing cells and second data read from the sensing cells. When the difference between the first data and the second data is greater than a threshold value, the controller is configured to stop a write operation of a plurality of memory cells of the MRAM until the difference between the first data and the second data is less than the threshold value.
    Type: Grant
    Filed: May 25, 2020
    Date of Patent: December 15, 2020
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD
    Inventors: Ji-Feng Ying, Baohua Niu
  • Publication number: 20200386832
    Abstract: An apparatus for measuring a magnetic field strength is provided. The apparatus includes a stage on which a sample to be measured is placed, a cantilever having a tip, an optical system having a light source and a light receiver, and a microwave power source. The tip is a diamond tip having a nitrogen vacancy defect. The optical system is configured such that excitation light from the light source is focused at the diamond tip. The cantilever is configured as a coaxial microwave antenna through which microwaves from the microwave power source are supplied to the diamond tip.
    Type: Application
    Filed: August 24, 2020
    Publication date: December 10, 2020
    Inventors: Baohua NIU, Ji-Feng YING
  • Patent number: 10861574
    Abstract: A memory test system is disclosed that includes a memory integrated circuit (IC) and a memory functional tester. The memory IC includes a plurality of memory banks, where each memory bank includes a plurality of memory cells. The memory functional tester includes an adjustable voltage generator circuit, a read current measurement circuit, and a controller. The memory functional tester performs a write/read functional test on the memory bank over a number of write control voltages to determine a preferred write control voltage, where the preferred write control voltage is designated for use during subsequent write operations to the memory bank during an operational mode.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: December 8, 2020
    Inventors: Baohua Niu, Ji-Feng Ying
  • Patent number: 10850079
    Abstract: A system is provided for healing a wound. The system includes a flexible body, a therapeutic agent delivery mechanism, a suction mechanism, and a power source. The flexible body includes a cover film having oppositely disposed first and second surfaces that define a compartment. The compartment includes a first porous material, a second porous material, and at least one electrode disposed therein. The second porous material is disposed between the first porous material and the at least one electrode. The therapeutic agent delivery mechanism and the suction mechanism are fluidly connected to the compartment. The power source is in electrical communication with the at least one electrode.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: December 1, 2020
    Assignee: THE CLEVELAND CLINIC FOUNDATION
    Inventors: Francis A. Papay, Ji-Feng Chen, Shengqiang Gao
  • Publication number: 20200364384
    Abstract: The present disclosure discloses design and forming method of a channel of flow-type thin wall drip irrigation belt. The method includes the steps of construction of a double-layer asymmetric channel structure, determination of a structure parameter control threshold and optimal value, design of water inlets and water outlets of the double-layer asymmetric channel structure, proposal of a machining method of a molding wheel matching the double-layer asymmetric structure and an optimization method of a flow-type drip irrigation belt molding process, material modification of a flow-type drip irrigation belt and design of a reasonable formulation, realization the stereotype production of the flow-type drip irrigation belt, etc.
    Type: Application
    Filed: January 29, 2018
    Publication date: November 19, 2020
    Inventors: Yunkai Li, Peng Hou, Ji Feng, Zhifu Wang
  • Publication number: 20200359967
    Abstract: An annular mapping catheter includes a catheter body. The catheter body has a distal end and a proximal end. The distal end of the catheter body is provided with a distal end assembly, and the proximal end of the catheter body is provided with a handle. The distal end assembly is made of a head end catheter that has a shape memory function. The distal end assembly in a free state presents a predetermined bent shape including an annular part and a vertical part. The vertical part connects the annular part to the catheter body. The distal end assembly is provided with an electrode. The annular mapping catheter can detect an electrocardiogram activity near a pulmonary vein ostium and can better locate a cryoballoon in the heart.
    Type: Application
    Filed: January 22, 2019
    Publication date: November 19, 2020
    Inventors: Ji FENG, Jie GONG, Lirong WANG
  • Publication number: 20200357986
    Abstract: A memory cell of a magnetic random access memory includes multiple layers disposed between a first metal layer and a second metal layer. At least one of the multiple layers include one selected from the group consisting of an iridium layer, a bilayer structure of an iridium layer and an iridium oxide layer, an iridium-titanium nitride layer, a bilayer structure of an iridium layer and a tantalum layer, and a binary alloy layer of iridium and tantalum.
    Type: Application
    Filed: July 27, 2020
    Publication date: November 12, 2020
    Inventors: Baohua NIU, Ji-Feng YING
  • Patent number: 10797126
    Abstract: The present disclosure provides a display device and a manufacturing method thereof, and a display panel. The display panel may include a substrate defining a through hole; a driving wiring carried on the substrate; a solder pad being arranged on a back surface of the substrate. A first end of the driving wiring is located on a front surface of the substrate, and a second end of the driving wiring is connected to the solder pad via the through hole.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: October 6, 2020
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Ji-Feng Chen
  • Publication number: 20200312393
    Abstract: A method of manufacturing an array of magnetic random access memory cells includes writing to a magnetic random access memory cell. The writing to a memory cell includes determining an optimum write current for the array of memory cells, and applying the optimum write current to a first memory cell in the array. A first read current is applied to the first memory cell to determine whether a magnetic orientation of the first memory cell has changed in response to applying the optimum write current. A second write current is applied to the first memory cell when the magnetic orientation of the first memory cell has not changed. The second write current is different from the optimum write current. A second read current is applied to the first memory cell to determine whether the magnetic orientation of the first memory cell changed in response to applying the second write current.
    Type: Application
    Filed: June 15, 2020
    Publication date: October 1, 2020
    Inventors: Ji-Feng YING, Jhong-Sheng WANG, Baohua NIU
  • Publication number: 20200286951
    Abstract: A magnetic detection circuit for a magnetic random access memory (MRAM) is provided. The magnetic detection circuit includes a sensing array and a controller. The sensing array includes a plurality of sensing cells, and each of plurality of sensing cells includes a first magnetic tunnel junction (MTJ) device. The controller is configured to periodically write and read the sensing cells to obtain a difference between first data written to the sensing cells and second data read from the sensing cells. When the difference between the first data and the second data is greater than a threshold value, the controller is configured to stop a write operation of a plurality of memory cells of the MRAM until the difference between the first data and the second data is less than the threshold value.
    Type: Application
    Filed: May 25, 2020
    Publication date: September 10, 2020
    Inventors: Ji-Feng YING, Baohua NIU
  • Patent number: 10753990
    Abstract: An apparatus for measuring a magnetic field strength is provided. The apparatus includes a stage on which a sample to be measured is placed, a cantilever having a tip, an optical system having a light source and a light receiver, and a microwave power source. The tip is a diamond tip having a nitrogen vacancy defect. The optical system is configured such that excitation light from the light source is focused at the diamond tip. The cantilever is configured as a coaxial microwave antenna through which microwaves from the microwave power source are supplied to the diamond tip.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: August 25, 2020
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Baohua Niu, Ji-Feng Ying
  • Patent number: 10750683
    Abstract: A drip irrigation emitter flow channel structural design method and a fractal flow channel drip irrigation emitter product therefor. The method comprehensively considers within a design process the hydraulic performance and anti-blocking performance of a drip irrigation emitter, and mainly comprises stages such as simulation method establishment, flow channel configuration selection, structural parameter determination and flow channel boundary optimization. An optimal flow channel configuration and a structural parameter value range of a drip irrigation emitter flow channel are determined via an optimal value simulation model, thereby defining a drip irrigation emitter primary prototype structural design method.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: August 25, 2020
    Assignee: CHINA AGRICULTURAL UNIVERSITY
    Inventors: Yunkai Li, Bo Zhou, Ji Feng, Peiling Yang
  • Patent number: 10727401
    Abstract: A memory cell of a magnetic random access memory includes multiple layers disposed between a first metal layer and a second metal layer. At least one of the multiple layers include one selected from the group consisting of an iridium layer, a bilayer structure of an iridium layer and an iridium oxide layer, an iridium-titanium nitride layer, a bilayer structure of an iridium layer and a tantalum layer, and a binary alloy layer of iridium and tantalum.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: July 28, 2020
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Baohua Niu, Ji-Feng Ying