Patents by Inventor Fu-Hai Li

Fu-Hai Li 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: 20240130257
    Abstract: Devices and method for forming a switch including a heater layer including a first heater pad, a second heater pad, and a heater line connecting the first heater pad and the second heater pad, a phase change material (PCM) layer positioned in a same vertical plane as the heater line, and a floating spreader layer including a first portion positioned in the same vertical plane as the heater line and the PCM layer, in which the first portion has a first width that is less than or equal to a distance between proximate sidewalls of the first heater pad and the second heater pad.
    Type: Application
    Filed: April 21, 2023
    Publication date: April 18, 2024
    Inventors: Fu-Hai LI, Yi Ching ONG, Hsin Heng WANG, Tsung-Hao YEH, Yu-Wei TING, Kuo-Pin CHANG, Hung-Ju LI, Kuo-Ching HUANG
  • Publication number: 20240114812
    Abstract: A switch includes a heater layer, a phase change material (PCM) layer on the heater layer, and a spreader layer formed in proximity to the PCM layer and including a central region with a first thermal conductivity and an edge region with a second thermal conductivity different than the first thermal conductivity. A method of forming a switch includes forming a heater layer, forming a phase change material (PCM) layer on the heater layer, and forming a spreader layer in proximity to the PCM layer, such that the spreader layer includes a central region with a first thermal conductivity and an edge region with a second thermal conductivity different than the first thermal conductivity.
    Type: Application
    Filed: April 21, 2023
    Publication date: April 4, 2024
    Inventors: Fu-Hai Li, Kuo-Ching Huang, Yi Ching Ong
  • Publication number: 20240099167
    Abstract: An embodiment phase change material (PCM) switch may include a PCM element having a first electrode and a second electrode, a heating element coupled to a first side of the PCM element, and a heat spreader formed on a second side of the PCM element opposite to the heating element. The PCM element may include a phase change material that switches from an electrically conducting phase to an electrically insulating phase by application of a heat pulse provided by the heating element. The first electrode, the second electrode, the PCM element, and the heat spreader may be configured as an RF switch that blocks RF signals when the phase change material element is the electrically insulating phase and conducts RF signals when the when the phase change material element is in the electrically conducting phase. The heat spreader may be electrically isolated from the heating element and the PCM element.
    Type: Application
    Filed: April 20, 2023
    Publication date: March 21, 2024
    Inventors: Fu-Hai Li, Yi Ching Ong, Kuo-Ching Huang
  • Publication number: 20240040799
    Abstract: A memory device includes a transistor device; a memory cell electrically coupled to a source or drain of the transistor device, wherein the memory cell includes an FJT structure; and a heating structure formed around the memory cell on a plurality of sides. The FJT structure includes a first conductive electrode having sidewalls that extend in a vertical direction to a first elevation level, a second conductive electrode having sidewalls that extend in the vertical direction to the first elevation level, and a switching barrier disposed between the first conductive electrode and the second conductive electrode and having sidewalls that extend in the vertical direction to the first elevation level, wherein the vertically extending sidewalls of the first conductive electrode, the second conductive electrode, and the switching barrier terminate at the first elevation level. The switching barrier includes ferroelectric (Fe) material that may be polarized to store information.
    Type: Application
    Filed: July 28, 2022
    Publication date: February 1, 2024
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Kuen-Yi Chen, Fu-Hai Li, Yi Ching Ong, Kuo-Ching Huang, Yi-Hsuan Chen, Yu-Sheng Chen
  • Publication number: 20230413673
    Abstract: A pyroelectric generator may be included in the same semiconductor device as a radio frequency (RF) switch (e.g., a phase-change material (PCM) RF switch and/or other types of RF switch). The pyroelectric generator includes a pyroelectric material layer between two electrodes. The pyroelectric generator is configured to scavenge thermal energy that is generated during the operation of the RF switch, and to convert the thermal energy into electrical energy that may be stored and reused.
    Type: Application
    Filed: June 17, 2022
    Publication date: December 21, 2023
    Inventors: Fu-Hai LI, Kuen-Yi CHEN, Yi Ching ONG, Kuo-Ching HUANG, Harry Hak Lay CHUANG
  • Publication number: 20230352612
    Abstract: A semiconductor structure may include semiconductor devices located on a substrate, metal interconnect structures that are located within dielectric material layers overlying the semiconductor devices and are electrically connected to the semiconductor devices, and an energy harvesting device located over the metal interconnect structures and comprising a Schottky barrier diode, a first diode electrode located on a first side of the Schottky barrier diode, and a second diode electrode connected to a second side of the Schottky barrier diode
    Type: Application
    Filed: April 27, 2022
    Publication date: November 2, 2023
    Inventors: Fu-Hai LI, Yi Ching ONG, Kuo-Ching HUANG
  • Patent number: 8609460
    Abstract: A semiconductor structure and a fabricating method thereof are provided. The fabricating method includes forming a gate, a source, and a drain on a substrate and forming an oxide semiconductor material between the gate and the source and drain. The oxide semiconductor material is formed by performing a deposition process, and nitrogen gas is introduced before the deposition process is completely performed, so as to form oxide semiconductor nitride on the oxide semiconductor material.
    Type: Grant
    Filed: April 18, 2011
    Date of Patent: December 17, 2013
    Assignee: Au Optronics Corporation
    Inventors: Po-Tsun Liu, Yi-Teh Chou, Li-Feng Teng, Fu-Hai Li, Han-Ping D. Shieh, Wei-Ting Lin, Ming-Chin Hung, Chun-Ching Hsiao, Jiun-Jye Chang, Po-Lun Chen
  • Publication number: 20120061661
    Abstract: A semiconductor structure and a fabricating method thereof are provided. The fabricating method includes forming a gate, a source, and a drain on a substrate and forming an oxide semiconductor material between the gate and the source and drain. The oxide semiconductor material is formed by performing a deposition process, and nitrogen gas is introduced before the deposition process is completely performed, so as to form oxide semiconductor nitride on the oxide semiconductor material.
    Type: Application
    Filed: April 18, 2011
    Publication date: March 15, 2012
    Applicant: AU OPTRONICS CORPORATION
    Inventors: Po-Tsun Liu, Yi-Teh Chou, Li-Feng Teng, Fu-Hai Li, Han-Ping D. Shieh, Wei-Ting Lin, Ming-Chin Hung, Chun-Ching Hsiao, Jiun-Jye Chang, Po-Lun Chen