Patents by Inventor Liang Cheng Wang

Liang Cheng 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: 12199088
    Abstract: A package structure is provided. The package structure includes a leadframe, a GaN power device, and an electrostatic discharge protection component. The leadframe includes a gate pad, a source pad, and a drain pad, which are disposed on the leadframe. The GaN power device has a gate end. The GaN power device is disposed on the source pad of the leadframe. The electrostatic discharge protection component includes a first pad. The first pad is disposed on the electrostatic discharge protection component. The electrostatic discharge protection component is disposed on the source pad of the leadframe. The gate end of the GaN power device is electrically connected to the first pad of the electrostatic discharge protection component. The first pad of the electrostatic discharge protection component is electrically connected to the gate pad of the leadframe.
    Type: Grant
    Filed: April 12, 2022
    Date of Patent: January 14, 2025
    Assignee: ANCORA SEMICONDUCTORS INC.
    Inventors: Jen-Chih Li, Liang-Cheng Wang, Wei-Hsiang Chao
  • Publication number: 20230326918
    Abstract: A package structure is provided. The package structure includes a leadframe, a GaN power device, and an electrostatic discharge protection component. The leadframe includes a gate pad, a source pad, and a drain pad, which are disposed on the leadframe. The GaN power device has a gate end. The GaN power device is disposed on the source pad of the leadframe. The electrostatic discharge protection component includes a first pad. The first pad is disposed on the electrostatic discharge protection component. The electrostatic discharge protection component is disposed on the source pad of the leadframe. The gate end of the GaN power device is electrically connected to the first pad of the electrostatic discharge protection component. The first pad of the electrostatic discharge protection component is electrically connected to the gate pad of the leadframe.
    Type: Application
    Filed: April 12, 2022
    Publication date: October 12, 2023
    Inventors: Jen-Chih LI, Liang-Cheng WANG, Wei-Hsiang CHAO
  • Patent number: 10978403
    Abstract: A package structure includes a substrate, a first capacitor, a System on Chip unit and a wiring layer. The first capacitor is provided on the substrate. The System on Chip unit is bonded with the first capacitor in a first dielectric layer. The wiring layer is configured to electrically couple the first capacitor and the System on Chip unit. The wiring layer is provided on the first dielectric layer through a second dielectric layer.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: April 13, 2021
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Liang-Cheng Wang, Shiau-Shi Lin
  • Patent number: 10861766
    Abstract: A package structure is provided. The package structure includes a substrate, a plurality of active components, a plurality of separated metal parts and an encapsulation material. The substrate has a first surface and a second surface. Each active component has a first surface and a second surface. Each metal part has a first surface and a second surface. The first surface of each active component is connected to the first surface of the substrate. The first surface of one metal part is connected to the second surface of one active component. Each metal part extends to connect to the first surface of the substrate. The encapsulation material covers the first surface of the substrate and surrounds the active components and the metal parts. The second surface of each metal part and the second surface of the substrate are exposed from the encapsulation material.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: December 8, 2020
    Assignee: Delta Electronics, Inc.
    Inventors: Jen-Chih Li, Chang-Jing Yang, Liang-Cheng Wang, Shih-Yu Yeh
  • Patent number: 10819332
    Abstract: An integrated circuit includes a first power transistor, a second power transistor, and an isolator. The first power transistor is integrated with a first driving circuit. The second power transistor is integrated with a second driving circuit. The isolator provides a first control signal and a second control signal to the first power transistor and a second power transistor respectively, according to an input signal.
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: October 27, 2020
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Chang-Jing Yang, Liang-Cheng Wang
  • Publication number: 20200243453
    Abstract: A package structure includes a substrate, a first capacitor, a System on Chip unit and a wiring layer. The first capacitor is provided on the substrate. The System on Chip unit is bonded with the first capacitor in a first dielectric layer. The wiring layer is configured to electrically couple the first capacitor and the System on Chip unit. The wiring layer is provided on the first dielectric layer through a second dielectric layer.
    Type: Application
    Filed: January 30, 2019
    Publication date: July 30, 2020
    Inventors: Liang-Cheng WANG, Shiau-Shi LIN
  • Publication number: 20190260375
    Abstract: An integrated circuit includes a first power transistor, a second power transistor, and an isolator. The first power transistor is integrated with a first driving circuit. The second power transistor is integrated with a second driving circuit. The isolator provides a first control signal and a second control signal to the first power transistor and a second power transistor respectively, according to an input signal.
    Type: Application
    Filed: May 3, 2019
    Publication date: August 22, 2019
    Inventors: Chang-Jing YANG, Liang-Cheng WANG
  • Publication number: 20130038448
    Abstract: An access control system is disclosed comprising a credential reader arranged to gather at least one credential from a person desiring to pass through an access point associated with the access control system, the system being arranged to use the at least one credential to provide an indication about the identity of the person. The system also comprises at least one access control device controlling access through a respective access point such that a person is allowed or denied access dependent on whether the person is positively identified, and a data storage device that stores data indicative of a current security level applicable for each access point associated with the system, the security level defining the criteria required to provide a positive identification of the person. Stored security level data can be modified to change the criteria required for positively identifying a person.
    Type: Application
    Filed: May 25, 2012
    Publication date: February 14, 2013
    Applicant: CERTIS CISCO SECURITY PTE LTD
    Inventors: Kai Yew Paul Chong, Joon Keng Yong, Honching Lui, Liang Cheng Wang