Patents by Inventor Sheng-Hwa Lee

Sheng-Hwa Lee 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).

  • Method of forming semiconductor structure
    Patent number: 11538912
    Abstract: A method of forming a semiconductor structure includes following steps. A first isolation is formed between a pair of active regions. A gate structure is formed on the first isolation structure. The active regions are etched to form recesses with curved top surfaces. The active regions are etched again to change each of the curved top surfaces to be a top surface and a sidewall substantially perpendicular to the top surface. A pair of contacts is formed respectively on the active regions, such that each of the contacts has a bottom surface and a sidewall substantially perpendicular to the bottom surface.
    Type: Grant
    Filed: September 3, 2021
    Date of Patent: December 27, 2022
    Assignee: NANYA TECHNOLOGY CORPORATION
    Inventors: Sheng-Hwa Lee, Hsiu-Ming Chen
  • METHOD OF FORMING SEMICONDUCTOR STRUCTURE
    Publication number: 20210399101
    Abstract: A method of forming a semiconductor structure includes following steps. A first isolation is formed between a pair of active regions. A gate structure is formed on the first isolation structure. The active regions are etched to form recesses with curved top surfaces. The active regions are etched again to change each of the curved top surfaces to be a top surface and a sidewall substantially perpendicular to the top surface. A pair of contacts is formed respectively on the active regions, such that each of the contacts has a bottom surface and a sidewall substantially perpendicular to the bottom surface.
    Type: Application
    Filed: September 3, 2021
    Publication date: December 23, 2021
    Inventors: Sheng-Hwa LEE, Hsiu-Ming CHEN
  • Semiconductor structure and method of forming the same
    Patent number: 11145727
    Abstract: A semiconductor structure includes a pair of active regions, a first isolation structure, a gate structure, and a pair of contacts. The first isolation structure is disposed between the active regions. The gate structure is disposed on the first isolation structure. The contacts are respectively disposed on the active regions. Each of the contacts has a bottom surface and a sidewall substantially perpendicular to the bottom surface.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: October 12, 2021
    Assignee: NANYA TECHNOLOGY CORPORATION
    Inventors: Sheng-Hwa Lee, Hsiu-Ming Chen
  • SEMICONDUCTOR STRUCTURE AND METHOD OF FORMING THE SAME
    Publication number: 20210126095
    Abstract: A semiconductor structure includes a pair of active regions, a first isolation structure, a gate structure, and a pair of contacts. The first isolation structure is disposed between the active regions. The gate structure is disposed on the first isolation structure. The contacts are respectively disposed on the active regions. Each of the contacts has a bottom surface and a sidewall substantially perpendicular to the bottom surface.
    Type: Application
    Filed: October 29, 2019
    Publication date: April 29, 2021
    Inventors: Sheng-Hwa LEE, Hsiu-Ming CHEN
  • Braking and wheel-orienting mechanism for a four-wheeled trolley
    Patent number: 5115539
    Abstract: A braking and wheel-orienting mechanism for a four-wheeled trolley, which includes a brake cable divided into four strands each of which drives a braking system on one wheel so as to synchronously brake four wheels, and four additional wheel-orienting wires being applied to respectively control the orientations of four wheels.
    Type: Grant
    Filed: March 12, 1991
    Date of Patent: May 26, 1992
    Inventor: Sheng-Hwa Lee