Patents by Inventor Kuo-Yang Lai

Kuo-Yang Lai 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: 12288820
    Abstract: A transistor includes an insulating layer, a source region, a drain region, a channel layer, a ferroelectric layer, and a gate electrode. The source region and the drain region are respectively disposed on and in physical contact with two opposite sidewalls of the insulating layer. A thickness of the source region, a thickness of the drain region, and a thickness of the insulating layer are substantially the same. The channel layer is disposed on the insulating layer, the source region, and the drain region. The ferroelectric layer is disposed over the channel layer. The gate electrode is disposed on the ferroelectric layer.
    Type: Grant
    Filed: November 15, 2023
    Date of Patent: April 29, 2025
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Hung-Chang Sun, Sheng-Chih Lai, Yu-Wei Jiang, Kuo-Chang Chiang, TsuChing Yang, Feng-Cheng Yang, Chung-Te Lin
  • Publication number: 20250133774
    Abstract: A transistor including a channel layer including an oxide semiconductor material and methods of making the same. The transistor includes a channel layer having a first oxide semiconductor layer having a first oxygen concentration, a second oxide semiconductor layer having a second oxygen concentration and a third oxide semiconductor layer having a third oxygen concentration. The second oxide semiconductor layer is located between the first semiconductor oxide layer and the third oxide semiconductor layer. The second oxygen concentration is lower than the first oxygen concentration and the third oxygen concentration.
    Type: Application
    Filed: December 27, 2024
    Publication date: April 24, 2025
    Inventors: Kuo-Chang Chiang, Hung-Chang Sun, Sheng-Chih Lai, TsuChing Yang, Yu-Wei Jiang, Feng-Cheng Yang, Neil Quinn Murray
  • Publication number: 20250120091
    Abstract: A memory cell includes a thin film transistor over a semiconductor substrate, the thin film transistor including: a memory film contacting a word line; and an oxide semiconductor (OS) layer contacting a source line and a bit line, wherein the memory film is disposed between the OS layer and the word line, wherein the source line and the bit line each comprise a first conductive material touching the OS layer, and wherein the first conductive material has a work function less than 4.6. The memory cell further includes a dielectric material separating the source line and the bit line.
    Type: Application
    Filed: December 18, 2024
    Publication date: April 10, 2025
    Inventors: Kuo-Chang Chiang, Hung-Chang Sun, Sheng-Chih Lai, TsuChing Yang, Yu-Wei Jiang
  • Patent number: 12272750
    Abstract: A memory cell includes a ferroelectric (FE) material contacting a word line; and an oxide semiconductor (OS) layer contacting a source line and a bit line, wherein the FE material is disposed between the OS layer and the word line. The OS layer comprises: a first region adjacent the FE material, the first region having a first concentration of a semiconductor element; a second region adjacent the source line, the second region having a second concentration of the semiconductor element; and a third region between the first region and the second region, the third region having a third concentration of the semiconductor element, the third concentration is greater than the second concentration and less than the first concentration.
    Type: Grant
    Filed: June 7, 2023
    Date of Patent: April 8, 2025
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Kuo-Chang Chiang, Hung-Chang Sun, Sheng-Chih Lai, TsuChing Yang, Yu-Wei Jiang
  • Patent number: 12219777
    Abstract: A memory cell includes a thin film transistor over a semiconductor substrate, the thin film transistor including: a memory film contacting a word line; and an oxide semiconductor (OS) layer contacting a source line and a bit line, wherein the memory film is disposed between the OS layer and the word line, wherein the source line and the bit line each comprise a first conductive material touching the OS layer, and wherein the first conductive material has a work function less than 4.6. The memory cell further includes a dielectric material separating the source line and the bit line.
    Type: Grant
    Filed: June 26, 2023
    Date of Patent: February 4, 2025
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD
    Inventors: Kuo-Chang Chiang, Hung-Chang Sun, Sheng-Chih Lai, TsuChing Yang, Yu-Wei Jiang
  • Patent number: 12218250
    Abstract: A transistor including a channel layer including an oxide semiconductor material and methods of making the same. The transistor includes a channel layer having a first oxide semiconductor layer having a first oxygen concentration, a second oxide semiconductor layer having a second oxygen concentration and a third oxide semiconductor layer having a third oxygen concentration. The second oxide semiconductor layer is located between the first semiconductor oxide layer and the third oxide semiconductor layer. The second oxygen concentration is lower than the first oxygen concentration and the third oxygen concentration.
    Type: Grant
    Filed: June 14, 2023
    Date of Patent: February 4, 2025
    Assignee: Taiwan Semiconductor Manufacturing Company Limited
    Inventors: Kuo-Chang Chiang, Hung-Chang Sun, Sheng-Chih Lai, TsuChing Yang, Yu-Wei Jiang, Feng-Cheng Yang, Neil Quinn Murray
  • Patent number: 11341895
    Abstract: A method for application in a QLED display device is provided for cancelling optical crosstalk occurring in a QLED display panel consisting of M number of anode wires, N number of cathode wires, and M×N number of QLED elements. In case of the method being implemented in the QLED display device, a control unit is configured for controlling a column driver unit to supply a positive bias voltage to at least one QLED element that is addressingly selected. In the meantime, the control unit also controls a low driver unit to supply a reverse bias voltage to each of the QLED elements that are not selected. In such case, when the addressingly-selected QLED element achieves a light emission normally, each of the QLED elements that are not selected is reversely biased for failing to produce optical crosstalk.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: May 24, 2022
    Assignee: NATIONAL TSING HUA UNIVERSITY
    Inventors: Kuo-Yang Lai, Hsueh-Shih Chen