Patents by Inventor Li Hua Yu

Li Hua Yu 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: 20240112983
    Abstract: A semiconductor device includes a substrate, a semiconductor component and a heat dissipation component. The semiconductor component is disposed on the substrate. The heat dissipation component is disposed on the substrate and having a cavity, an inlet and an outlet, wherein the inlet and the outlet communicate with the cavity.
    Type: Application
    Filed: January 20, 2023
    Publication date: April 4, 2024
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Li WANG, Chen-Hua YU, Chuei-Tang WANG, Shih-Chang KU
  • Publication number: 20240113205
    Abstract: A method includes forming a first semiconductor fin and a second semiconductor fin in an n-type Fin Field-Effect (FinFET) region and a p-type FinFET region, respectively, forming a first dielectric fin and a second dielectric fin in the n-type FinFET region and the p-type FinFET region, respectively, forming a first epitaxy mask to cover the second semiconductor fin and the second dielectric fin, performing a first epitaxy process to form an n-type epitaxy region based on the first semiconductor fin, removing the first epitaxy mask, forming a second epitaxy mask to cover the n-type epitaxy region and the first dielectric fin, performing a second epitaxy process to form a p-type epitaxy region based on the second semiconductor fin, and removing the second epitaxy mask. After the second epitaxy mask is removed, a portion of the second epitaxy mask is left on the first dielectric fin.
    Type: Application
    Filed: November 28, 2023
    Publication date: April 4, 2024
    Inventors: Chih-Chiang Chang, Ming-Hua Yu, Li-Li Su
  • Patent number: 11948971
    Abstract: A method includes forming isolations extending into a semiconductor substrate, recessing the isolation regions, wherein a semiconductor region between the isolation regions forms a semiconductor fin, forming a first dielectric layer on the isolation regions and the semiconductor fin, forming a second dielectric layer over the first dielectric layer, planarizing the second dielectric layer and the first dielectric layer, and recessing the first dielectric layer. A portion of the second dielectric layer protrudes higher than remaining portions of the first dielectric layer to form a protruding dielectric fin. A portion of the semiconductor fin protrudes higher than the remaining portions of the first dielectric layer to form a protruding semiconductor fin. A portion of the protruding semiconductor fin is recessed to form a recess, from which an epitaxy semiconductor region is grown. The epitaxy semiconductor region expands laterally to contact a sidewall of the protruding dielectric fin.
    Type: Grant
    Filed: August 10, 2021
    Date of Patent: April 2, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Jeng-Wei Yu, Tsz-Mei Kwok, Tsung-Hsi Yang, Li-Wei Chou, Ming-Hua Yu
  • Patent number: 5791798
    Abstract: A multi-purpose writing instrument having a series of writing tips for various uses includes a hollow tubular mounting having a mounting wall surrounding a through hole, an upper end of the mounting wall forming a mounting step with inner threads. A lower section of the mounting wall has a tapered configuration which extends downwardly to form a straight section having a tip hole. An outer surface of the lower section of the mounting wall is cut horizontally and then vertically to form an insert surface and an insert step which is, in turn, joined to a plurality of outer threads before extending to the tapered end. The outer diameter of the insert surface corresponds to the diameter of the mounting hole while the external and internal holes engage each other. The writing tip has a size matching that of the tip hole so that it may fit firmly into the tip hole.
    Type: Grant
    Filed: February 1, 1996
    Date of Patent: August 11, 1998
    Inventor: Li Hua Yu