Patents by Inventor Fuchao Wang

Fuchao 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).

  • Publication number: 20240407268
    Abstract: Apparatus, and their methods of manufacture, including an integrated circuit device having metallization layers for interconnecting underlying electronic devices. Contacts contact conductors of an uppermost one of the metallization layers. A planarized first dielectric layer covers the contacts and the uppermost one of the metallization layers. An anisotropic magnetoresistive (AMR) stack is on the first dielectric layer between vertically aligned portions of an etch stop layer formed on the first dielectric layer and a second dielectric layer formed on the etch stop layer. Vias extend through the first dielectric layer to electrically connect the AMR stack and the contacts. A chemical-mechanical planarization (CMP) stop layer is on the AMR stack. A third dielectric layer is on the CMP stop layer. A passivation layer contacts the second dielectric layer portions, the third dielectric layer, and each opposing end of the AMR stack and the CMP stop layer.
    Type: Application
    Filed: August 14, 2024
    Publication date: December 5, 2024
    Inventors: Fuchao Wang, Christopher Eric Brannon, William David French, Dok Won Lee
  • Publication number: 20240332369
    Abstract: In one example, an integrated circuit comprises a transistor and a metal layer. The transistor has an insulator layer over a substrate that includes gallium nitride (GaN). First and second opening in the insulator layer respectively define a drain region and a source region of the transistor. A gate electrode extends into the insulator layer between the source region and the drain region. The metal layer includes a drain via and a source via. The drain via extends through the first opening to the drain region. The source via extends through the second opening to the source region. A source field plate is in the metal layer. The source field plate extends over the gate electrode and provides a contiguous electrically conductive path to the source region.
    Type: Application
    Filed: March 30, 2023
    Publication date: October 3, 2024
    Inventors: Fuchao Wang, Billy Alan Wofford, Ebenezer Eshun, Jungwoo Joh, Dong Seup Lee
  • Patent number: 12069956
    Abstract: Apparatus, and their methods of manufacture, including an integrated circuit device having metallization layers for interconnecting underlying electronic devices. Contacts contact conductors of an uppermost one of the metallization layers. A planarized first dielectric layer covers the contacts and the uppermost one of the metallization layers. An anisotropic magnetoresistive (AMR) stack is on the first dielectric layer between vertically aligned portions of an etch stop layer formed on the first dielectric layer and a second dielectric layer formed on the etch stop layer. Vias extend through the first dielectric layer to electrically connect the AMR stack and the contacts. A chemical-mechanical planarization (CMP) stop layer is on the AMR stack. A third dielectric layer is on the CMP stop layer. A passivation layer contacts the second dielectric layer portions, the third dielectric layer, and each opposing end of the AMR stack and the CMP stop layer.
    Type: Grant
    Filed: September 28, 2021
    Date of Patent: August 20, 2024
    Assignee: Texas Instruments Incorporated
    Inventors: Fuchao Wang, Christopher Eric Brannon, William David French, Dok Won Lee
  • Publication number: 20240213333
    Abstract: A microelectronic device includes a III-N semiconductor layer having a top surface with at least one topological structure in the III-N semiconductor layer. The topological structure may be an opening in the III-N semiconductor layer or a protrusion of the III-N semiconductor layer. The microelectronic device also includes a liner including silicon nitride on the topological structure, contacting the III-N semiconductor layer. The microelectronic device further includes a fill material including silicon nitride on the topological structure on the liner. A top surface of the fill material is planar and parallel to the top surface of the III-N semiconductor layer adjacent to the topological structure.
    Type: Application
    Filed: December 22, 2022
    Publication date: June 27, 2024
    Inventors: Fuchao Wang, Bill Wofford, Jonathan R Garrett, Ebenezer Eshun, Jungwoo Joh
  • Publication number: 20240102830
    Abstract: Barrier layers for anisotropic magneto-resistive (AMR) sensors integrated with semiconductor circuits and methods of making the same are described. The AMR sensors includes a NiFe alloy layer disposed over a dielectric layer. The NiFe alloy layer is in contact with a conductive via coupled to the semiconductor circuits in a substrate underneath the AMR sensor. A barrier layer is formed on the dielectric layer to prevent Ni or Fe atoms from diffusing through the dielectric layer toward the semiconductor circuits. Further, a sacrificial layer is used to facilitate forming a planarized surface with ends of the conductive vias exposed without compromising the barrier layer.
    Type: Application
    Filed: December 28, 2022
    Publication date: March 28, 2024
    Inventors: Fuchao Wang, William French, Ricky A. Jackson, Erika Mazotti
  • Patent number: 11856657
    Abstract: An integrated circuit is provided having an active circuit. A heating element is adjacent to the active circuit and configured to heat the active circuit. A temperature sensor is also adjacent to the active circuit and configured to measure a temperature of the active circuit. A temperature controller is coupled to the active circuit and configured to receive a temperature signal from the temperature sensor. The temperature controller operates the heating element to heat the active circuit to maintain the temperature of the active circuit in a selected temperature range.
    Type: Grant
    Filed: September 10, 2021
    Date of Patent: December 26, 2023
    Assignees: STMICROELECTRONICS ASIA PACIFIC PTE LTD, STMICROELECTRONICS, INC.
    Inventors: Fuchao Wang, Olivier Leneel, Ravi Shankar
  • Publication number: 20230134596
    Abstract: A method of fabricating an integrated circuit includes forming a titanium nitride layer over a semiconductor substrate in a process chamber and forming a poisoned titanium layer on the titanium nitride layer in the process chamber. Forming the titanium nitride layer includes sputtering titanium from a titanium sputter target using a first nitrogen flow. Forming the poisoned titanium layer includes sputtering titanium from the titanium sputter target using a lower second nitrogen flow. The method also forms an aluminum layer on the poisoned titanium layer.
    Type: Application
    Filed: October 29, 2021
    Publication date: May 4, 2023
    Inventors: Fuchao Wang, James Klawinsky, Albert M Estevez, Billy A Wofford
  • Publication number: 20230096573
    Abstract: Apparatus, and their methods of manufacture, including an integrated circuit device having metallization layers for interconnecting underlying electronic devices. Contacts contact conductors of an uppermost one of the metallization layers. A planarized first dielectric layer covers the contacts and the uppermost one of the metallization layers. An anisotropic magnetoresistive (AMR) stack is on the first dielectric layer between vertically aligned portions of an etch stop layer formed on the first dielectric layer and a second dielectric layer formed on the etch stop layer. Vias extend through the first dielectric layer to electrically connect the AMR stack and the contacts. A chemical-mechanical planarization (CMP) stop layer is on the AMR stack. A third dielectric layer is on the CMP stop layer. A passivation layer contacts the second dielectric layer portions, the third dielectric layer, and each opposing end of the AMR stack and the CMP stop layer.
    Type: Application
    Filed: September 28, 2021
    Publication date: March 30, 2023
    Inventors: Fuchao Wang, Christopher Eric Brannon, William David French, Dok Won Lee
  • Patent number: 11443879
    Abstract: An integrated magnetic device has a magnetic core which includes layers of the magnetic material located in a trench in a dielectric layer. The magnetic material layers are flat and parallel to a bottom of the trench, and do not extend upward along sides of the trench. The integrated magnetic device is formed by forming layers of the magnetic material over the dielectric layer and extending into the trench. A protective layer is formed over the magnetic material layers. The magnetic material layers are removed from over the dielectric layer, leaving the magnetic material layers and a portion of the protective layer in the trench. The magnetic material layers along sides of the trench are subsequently removed. The magnetic material layers along the bottom of the trench provide the magnetic core.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: September 13, 2022
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Fuchao Wang, Yousong Zhang, Neal Thomas Murphy, Brian Zinn, Jonathan P. Davis
  • Publication number: 20220030667
    Abstract: An integrated circuit is provided having an active circuit. A heating element is adjacent to the active circuit and configured to heat the active circuit. A temperature sensor is also adjacent to the active circuit and configured to measure a temperature of the active circuit. A temperature controller is coupled to the active circuit and configured to receive a temperature signal from the temperature sensor. The temperature controller operates the heating element to heat the active circuit to maintain the temperature of the active circuit in a selected temperature range.
    Type: Application
    Filed: September 10, 2021
    Publication date: January 27, 2022
    Applicants: STMICROELECTRONICS ASIA PACIFIC PTE LTD, STMICROELECTRONICS, INC.
    Inventors: Fuchao WANG, Olivier LENEEL, Ravi SHANKAR
  • Patent number: 11140750
    Abstract: An integrated circuit is provided having an active circuit. A heating element is adjacent to the active circuit and configured to heat the active circuit. A temperature sensor is also adjacent to the active circuit and configured to measure a temperature of the active circuit. A temperature controller is coupled to the active circuit and configured to receive a temperature signal from the temperature sensor. The temperature controller operates the heating element to heat the active circuit to maintain the temperature of the active circuit in a selected temperature range.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: October 5, 2021
    Assignees: STMICROELECTRONICS, INC., STMICROELECTRONICS ASIA PACIFIC PTE LTD
    Inventors: Fuchao Wang, Olivier Leneel, Ravi Shankar
  • Patent number: 10654714
    Abstract: An integrated semiconductor heating assembly includes a semiconductor substrate, a chamber formed therein, and an exit port in fluid communication with the chamber, allowing fluid to exit the chamber in response to heating the chamber. The integrated heating assembly includes a first heating element adjacent the chamber, which can generate heat above a selected threshold and bias fluid in the chamber toward the exit port. A second heating element is positioned adjacent the exit port to generate heat above a selected threshold, facilitating movement of the fluid through the exit port away from the chamber. Addition of the second heating element reduces the amount of heat emitted per heating element and minimizes thickness of a heat absorption material toward an open end of the exit port. Since such material is expensive, this reduces the manufacturing cost and retail price of the assembly while improving efficiency and longevity thereof.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: May 19, 2020
    Assignee: STMicroelectronics, Inc.
    Inventors: Ming Fang, Fuchao Wang
  • Publication number: 20190341181
    Abstract: An integrated magnetic device has a magnetic core which includes layers of the magnetic material located in a trench in a dielectric layer. The magnetic material layers are flat and parallel to a bottom of the trench, and do not extend upward along sides of the trench. The integrated magnetic device is formed by forming layers of the magnetic material over the dielectric layer and extending into the trench. A protective layer is formed over the magnetic material layers. The magnetic material layers are removed from over the dielectric layer, leaving the magnetic material layers and a portion of the protective layer in the trench. The magnetic material layers along sides of the trench are subsequently removed. The magnetic material layers along the bottom of the trench provide the magnetic core.
    Type: Application
    Filed: July 16, 2019
    Publication date: November 7, 2019
    Inventors: Fuchao Wang, Yousong Zhang, Neal Thomas Murphy, Brian Zinn, Jonathan P. Davis
  • Patent number: 10403424
    Abstract: An integrated magnetic device has a magnetic core which includes layers of the magnetic material located in a trench in a dielectric layer. The magnetic material layers are flat and parallel to a bottom of the trench, and do not extend upward along sides of the trench. The integrated magnetic device is formed by forming layers of the magnetic material over the dielectric layer and extending into the trench. A protective layer is formed over the magnetic material layers. The magnetic material layers are removed from over the dielectric layer, leaving the magnetic material layers and a portion of the protective layer in the trench. The magnetic material layers along sides of the trench are subsequently removed. The magnetic material layers along the bottom of the trench provide the magnetic core.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: September 3, 2019
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Fuchao Wang, Yousong Zhang, Neal Thomas Murphy, Brian Zinn, Jonathan P. Davis
  • Publication number: 20190141789
    Abstract: An integrated circuit is provided having an active circuit. A heating element is adjacent to the active circuit and configured to heat the active circuit. A temperature sensor is also adjacent to the active circuit and configured to measure a temperature of the active circuit. A temperature controller is coupled to the active circuit and configured to receive a temperature signal from the temperature sensor. The temperature controller operates the heating element to heat the active circuit to maintain the temperature of the active circuit in a selected temperature range.
    Type: Application
    Filed: December 27, 2018
    Publication date: May 9, 2019
    Inventors: Fuchao WANG, Olivier LENEEL, Ravi SHANKAR
  • Patent number: 10276787
    Abstract: An integrated device includes a substrate having a semiconductor surface layer including functional circuitry, a lower metal stack on the semiconductor surface layer, an interlevel dielectric (ILD) layer on the lower metal stack, a top metal layer providing AMR contact pads and bond pads coupled to the AMR contact pads in the ILD layer. An AMR device is above the lower metal stack lateral to the functional circuitry including a patterned AMR stack including a seed layer, an AMR material layer, and a capping layer, wherein the seed layer is coupled to the AMR contact pads by a coupling structure. A protective overcoat (PO layer) is over the AMR stack. There are openings in the PO layer exposing the bond pads.
    Type: Grant
    Filed: February 11, 2016
    Date of Patent: April 30, 2019
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Dok Won Lee, William David French, Ricky Alan Jackson, Fuchao Wang
  • Patent number: 10230273
    Abstract: An electricity transmission sending device includes: a transmission circuit and a coil, where the transmission circuit includes a signal sending unit and a controlling unit, and the coil includes at least two mutually perpendicular subcoils. The signal sending unit is configured to receive a required power signal and an actually received power signal that are sent by the electricity transmission receiving device; and the controlling unit is configured to adjust a magnetic field direction in which wireless electricity transmission to the electricity transmission receiving device is performed and control the coil to transmit electric energy to the electricity transmission receiving device in an optimal magnetic field direction, where the optimal magnetic field direction refers to a corresponding magnetic field direction when a power value of electric energy actually received by the electricity transmission receiving device is maximum in a case of specific output power of the coil.
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: March 12, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Fuchao Wang, Fan Tian, Yuchao Zhang
  • Patent number: 10206247
    Abstract: An integrated circuit is provided having an active circuit. A heating element is adjacent to the active circuit and configured to heat the active circuit. A temperature sensor is also adjacent to the active circuit and configured to measure a temperature of the active circuit. A temperature controller is coupled to the active circuit and configured to receive a temperature signal from the temperature sensor. The temperature controller operates the heating element to heat the active circuit to maintain the temperature of the active circuit in a selected temperature range.
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: February 12, 2019
    Assignees: STMICROELECTRONICS, INC., STMICROELECTRONICS ASIA PACIFIC PTE LTD
    Inventors: Fuchao Wang, Olivier Le Neel, Ravi Shankar
  • Publication number: 20180358163
    Abstract: An integrated magnetic device has a magnetic core which includes layers of the magnetic material located in a trench in a dielectric layer. The magnetic material layers are flat and parallel to a bottom of the trench, and do not extend upward along sides of the trench. The integrated magnetic device is formed by forming layers of the magnetic material over the dielectric layer and extending into the trench. A protective layer is formed over the magnetic material layers. The magnetic material layers are removed from over the dielectric layer, leaving the magnetic material layers and a portion of the protective layer in the trench. The magnetic material layers along sides of the trench are subsequently removed. The magnetic material layers along the bottom of the trench provide the magnetic core.
    Type: Application
    Filed: June 9, 2017
    Publication date: December 13, 2018
    Applicant: Texas Instruments Incorporated
    Inventors: Fuchao Wang, Yousong Zhang, Neal Thomas Murphy, Brian Zinn, Jonathan P. Davis
  • Patent number: 10068769
    Abstract: In a described example method, semiconductor wafer with a backside silicon nitride layer is encapsulated with a diffusion barrier layer prior to a high temperature anneal greater than about 1000 degrees Celsius. After the high temperature anneal the diffusion barrier layer and the backside silicon nitride layers are stripped.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: September 4, 2018
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Prakash Dalpatbhai Dev, Fuchao Wang, Nicholas Andrew Kusek