Patents by Inventor Chih-Tsang Tseng

Chih-Tsang Tseng 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: 20230238282
    Abstract: A method of forming a semiconductor structure is provided. The method includes forming a gate structure over an active region of a substrate, forming an epitaxial layer comprising first dopants of a first conductivity type over portions of the active region on opposite sides of the gate structure, the epitaxial layer, applying a cleaning solution comprising ozone and deionized water to the epitaxial layer, thereby forming an oxide layer on the epitaxial layer, forming a patterned photoresist layer over the oxide layer and the gate structure to expose a portion of the oxide layer, forming a contact region second dopants of a second conductivity type opposite the first conductivity type in the portion of the epitaxial layer not covered by the patterned photoresist layer, and forming a contact overlying the contact region.
    Type: Application
    Filed: January 9, 2023
    Publication date: July 27, 2023
    Inventors: Ke-Ming CHEN, Ting-Jung CHANG, Hsin-Chen CHENG, Chih-Tsang TSENG
  • Patent number: 11551977
    Abstract: A method of forming a semiconductor structure is provided. The method includes forming a gate structure over an active region of a substrate, forming an epitaxial layer comprising first dopants of a first conductivity type over portions of the active region on opposite sides of the gate structure, applying a cleaning solution comprising ozone and deionized water to the epitaxial layer, thereby forming an oxide layer on the epitaxial layer, forming a patterned photoresist layer over the oxide layer and the gate structure to expose a portion of the oxide layer, forming a contact region including second dopants of a second conductivity type opposite the first conductivity type in the portion of the epitaxial layer not covered by the patterned photoresist layer, and forming a contact overlying the contact region.
    Type: Grant
    Filed: May 7, 2021
    Date of Patent: January 10, 2023
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Ke-Ming Chen, Ting-Jung Chang, Hsin-Chen Cheng, Chih-Tsang Tseng
  • Publication number: 20220359297
    Abstract: A method of forming a semiconductor structure is provided. The method includes forming a gate structure over an active region of a substrate, forming an epitaxial layer comprising first dopants of a first conductivity type over portions of the active region on opposite sides of the gate structure, the epitaxial layer, applying a cleaning solution comprising ozone and deionized water to the epitaxial layer, thereby forming an oxide layer on the epitaxial layer, forming a patterned photoresist layer over the oxide layer and the gate structure to expose a portion of the oxide layer, forming a contact region second dopants of a second conductivity type opposite the first conductivity type in the portion of the epitaxial layer not covered by the patterned photoresist layer, and forming a contact overlying the contact region.
    Type: Application
    Filed: May 7, 2021
    Publication date: November 10, 2022
    Inventors: Ke-Ming CHEN, Ting-Jung CHANG, Hsin-Chen CHENG, Chih-Tsang TSENG
  • Patent number: 9799497
    Abstract: Systems and methods are provided for material processing. An example apparatus includes a process-kit component containing a first groove and a second groove. The first groove and the second groove are disposed to form a pattern on a surface of the process-kit component. The process-kit component is configured to be placed into a chamber to reduce material deposition on one or more parts of the chamber during material processing.
    Type: Grant
    Filed: August 16, 2013
    Date of Patent: October 24, 2017
    Assignee: Taiwan Semiconductor Manufacturing Company Limited
    Inventors: Chen-Fang Chung, Chih-Tsang Tseng, Hsiao-Chuan Lee, Kuo-Pin Chuang, Shuen-Liang Tseng
  • Publication number: 20150047563
    Abstract: Systems and methods are provided for material processing. An example apparatus includes a process-kit component containing a first groove and a second groove. The first groove and the second groove are disposed to form a pattern on a surface of the process-kit component. The process-kit component is configured to be placed into a chamber to reduce material deposition on one or more parts of the chamber during material processing.
    Type: Application
    Filed: August 16, 2013
    Publication date: February 19, 2015
    Applicant: Taiwan Semiconductor Manufacturing Company Limited
    Inventors: CHEN-FANG CHUNG, Chih-Tsang Tseng, Hsiao-Chuan Lee, KUO-PIN CHUANG, Shuen-Liang Tseng