Patents by Inventor Wei Dou

Wei Dou 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: 12588443
    Abstract: Methods for reducing contact resistance include performing a selective titanium silicide (TiSi) deposition process on a middle of the line (MOL) contact structure that includes a cavity in a substrate of dielectric material. The contact structure also includes a silicon-based connection portion at a bottom of the cavity. The selective TiSi deposition process is selective to silicon-based material over dielectric material. The methods also include performing a selective deposition process of a metal material on the MOL contact structure. The selective deposition process is selective to TiSi material over dielectric material and forms a silicide capping layer on the silicon-based connection portion. The methods further include performing a seed layer deposition process of the metal material on the contact structure.
    Type: Grant
    Filed: April 26, 2023
    Date of Patent: March 24, 2026
    Assignee: Applied Materials Inc.
    Inventors: Jiang Lu, Liqi Wu, Wei Dou, Weifeng Ye, Shih Chung Chen, Rongjun Wang, Xianmin Tang, Yiyang Wan, Shumao Zhang, Jianqiu Guo
  • Patent number: 12345745
    Abstract: A threshold voltage detection method is provided by the present application. A driving current flowing through the driving transistor during a detection process can be constant by a new detection time sequence. A voltage of the drain electrode of the driving transistor is raised to a preset voltage within a detection time by iterating for multiple iterations by an iterative method, to acquire a target threshold voltage.
    Type: Grant
    Filed: December 22, 2021
    Date of Patent: July 1, 2025
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Wei Dou
  • Publication number: 20250197638
    Abstract: A flame retardant composition includes 40-60 parts by weight of phosphonate, 5-15 parts by weight of an organosilicon flame retardant, and 2-8 parts by weight of an inorganic silicon synergist. The phosphonate is prepared by a method including: (1) condensing a compound represented by formula (I) such that some of the compounds form a polymer, giving a partially condensed product; and (2) reacting a rare earth inorganic salt with the partially condensed product to form the phosphonate.
    Type: Application
    Filed: May 13, 2024
    Publication date: June 19, 2025
    Applicant: BAOTOU RESEARCH INSTITUTE OF RARE EARTHS
    Inventors: Xiaoli Yu, Wei Dou, Hongzhang Cao, Yu Tang, Xiaodong Zhou, Lili Zhao, Tingting Lu, Liying Guo, Luya Cao, Dequan Han, Huhu Tian, Hui Wang, Yuxuan Qi, Ruixiang Ge, Mingguang Chen, Hao Wu, Xue Bai
  • Patent number: 12272551
    Abstract: Embodiments of the disclosure relate to methods for selectively removing metal material from the top surface and sidewalls of a feature. The metal material which is covered by a flowable polymer material remains unaffected. In some embodiments, the metal material is formed by physical vapor deposition resulting in a relatively thin sidewall thickness. Any metal material remaining on the sidewall after removal of the metal material from the top surface may be etched by an additional etch process. The resulting metal layer at the bottom of the feature facilitates selective metal gapfill of the feature.
    Type: Grant
    Filed: May 25, 2022
    Date of Patent: April 8, 2025
    Assignee: Applied Materials, Inc.
    Inventors: Liqi Wu, Feng Q. Liu, Bhaskar Jyoti Bhuyan, James Hugh Connolly, Zhimin Qi, Jie Zhang, Wei Dou, Aixi Zhang, Mark Saly, Jiang Lu, Rongjun Wang, David Thompson, Xianmin Tang
  • Patent number: 12217671
    Abstract: The present disclosure provides a pixel driving circuit, a driving method thereof, and a display panel. A switching transistor and a sensing transistor are controlled with the same scanning line. In a detection stage, a voltage of a scanning signal line is adjusted to enable the sensing transistor to be turned on and the switching transistor to be turned off, so that a gate and a source of the driving transistor are in a floating state. A storage capacitor maintains a gate-source potential difference of the driving transistor to be stable, thereby it can accurately compensate for the mobility of the driving transistor.
    Type: Grant
    Filed: April 22, 2022
    Date of Patent: February 4, 2025
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Wei Dou
  • Patent number: 12100346
    Abstract: The present disclosure discloses a pixel circuit and an external compensation method thereof. The external compensation method detects real-time source potentials of a driving transistor through n iterations, a single iterative detection time that can be set artificially to limit a time for each iteration to detect a real-time source potential of the driving transistor, until the real-time source potential of the driving transistor is equal to a target source potential, thereby improving threshold voltage detection efficiency of the driving transistor.
    Type: Grant
    Filed: October 11, 2021
    Date of Patent: September 24, 2024
    Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventors: Wei Dou, Taijiun Hwang
  • Publication number: 20240161689
    Abstract: The present disclosure provides a pixel driving circuit, a driving method thereof, and a display panel. A switching transistor and a sensing transistor are controlled with the same scanning line. In a detection stage, a voltage of a scanning signal line is adjusted to enable the sensing transistor to be turned on and the switching transistor to be turned off, so that a gate and a source of the driving transistor are in a floating state. A storage capacitor maintains a gate-source potential difference of the driving transistor to be stable, thereby it can accurately compensate for the mobility of the driving transistor.
    Type: Application
    Filed: April 22, 2022
    Publication date: May 16, 2024
    Applicant: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Wei Dou
  • Publication number: 20240105444
    Abstract: Methods for reducing contact resistance include performing a selective titanium silicide (TiSi) deposition process on a middle of the line (MOL) contact structure that includes a cavity in a substrate of dielectric material. The contact structure also includes a silicon-based connection portion at a bottom of the cavity. The selective TiSi deposition process is selective to silicon-based material over dielectric material. The methods also include performing a selective deposition process of a metal material on the MOL contact structure. The selective deposition process is selective to TiSi material over dielectric material and forms a silicide capping layer on the silicon-based connection portion. The methods further include performing a seed layer deposition process of the metal material on the contact structure.
    Type: Application
    Filed: April 26, 2023
    Publication date: March 28, 2024
    Inventors: Jiang LU, Liqi WU, Wei DOU, Weifeng YE, Shih Chung CHEN, Rongjun WANG, Xianmin TANG, Yiyang WAN, Shumao ZHANG, Jianqiu GUO
  • Publication number: 20240054949
    Abstract: The present disclosure discloses a pixel circuit and an external compensation method thereof. The external compensation method detects real-time source potentials of a driving transistor through n iterations, a single iterative detection time that can be set artificially to limit a time for each iteration to detect a real-time source potential of the driving transistor, until the real-time source potential of the driving transistor is equal to a target source potential, thereby improving threshold voltage detection efficiency of the driving transistor.
    Type: Application
    Filed: October 11, 2021
    Publication date: February 15, 2024
    Inventors: Wei DOU, Taijiun HWANG
  • Publication number: 20240044950
    Abstract: A threshold voltage detection method is provided by the present application. A driving current flowing through the driving transistor during a detection process can be constant by a new detection time sequence. A voltage of the drain electrode of the driving transistor is raised to a preset voltage within a detection time by iterating for multiple iterations by an iterative method, to acquire a target threshold voltage.
    Type: Application
    Filed: December 22, 2021
    Publication date: February 8, 2024
    Applicant: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Wei Dou
  • Publication number: 20230386833
    Abstract: Embodiments of the disclosure relate to methods for selectively removing metal material from the top surface and sidewalls of a feature. The metal material which is covered by a flowable polymer material remains unaffected. In some embodiments, the metal material is formed by physical vapor deposition resulting in a relatively thin sidewall thickness. Any metal material remaining on the sidewall after removal of the metal material from the top surface may be etched by an additional etch process. The resulting metal layer at the bottom of the feature facilitates selective metal gapfill of the feature.
    Type: Application
    Filed: May 25, 2022
    Publication date: November 30, 2023
    Applicant: Applied Materials, Inc.
    Inventors: Liqi Wu, Feng Q. Liu, Bhaskar Jyoti Bhuyan, James Hugh Connolly, Zhimin Qi, Jie Zhang, Wei Dou, Aixi Zhang, Mark Saly, Jiang Lu, Rongjun Wang, David Thompson, Xianmin Tang
  • Patent number: 11823599
    Abstract: A threshold voltage detecting method is disclosed in the present application. In the threshold voltage detecting method provided in the present application, a path between a driving transistor and a detecting circuit is shut down during detecting, so that a current flowing through the driving transistor in a detecting stage only needs to charge a storage capacitor, but does not need to charge a parasitic capacitor on the detecting circuit, thereby shortening a threshold voltage detecting time of the driving transistor, and further improving threshold voltage detecting efficiency of the driving transistor.
    Type: Grant
    Filed: October 28, 2021
    Date of Patent: November 21, 2023
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Wei Dou, Jing Xu
  • Publication number: 20230120112
    Abstract: A threshold voltage detecting method is disclosed in the present application. In the threshold voltage detecting method provided in the present application, a path between a driving transistor and a detecting circuit is shut down during detecting, so that a current flowing through the driving transistor in a detecting stage only needs to charge a storage capacitor, but does not need to charge a parasitic capacitor on the detecting circuit, thereby shortening a threshold voltage detecting time of the driving transistor, and further improving threshold voltage detecting efficiency of the driving transistor.
    Type: Application
    Filed: October 28, 2021
    Publication date: April 20, 2023
    Applicant: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Wei Dou, Jing Xu
  • Publication number: 20220301828
    Abstract: Embodiments of methods and apparatus for reducing particle formation in physical vapor deposition (PVD) chambers are provided herein. In some embodiments, a method of reducing particle formation in a PVD chamber includes: performing a plurality of first deposition processes on a corresponding series of substrates disposed on a substrate support in the PVD chamber, wherein the PVD chamber includes a cover ring disposed about the substrate support and having a texturized outer surface, and wherein a silicon nitride (SiN) layer having a first thickness is deposited onto the texturized outer surface during each of the plurality of first deposition processes; and performing a second deposition process on the cover ring between subsets of the plurality of first deposition processes to deposit an amorphous silicon layer having a second thickness onto an underlying silicon nitride (SiN) layer.
    Type: Application
    Filed: March 17, 2021
    Publication date: September 22, 2022
    Inventors: Wei DOU, Yong CAO, Mingdong LI, Shane LAVAN, Jothilingam RAMALINGAM, Chengyu LIU
  • Patent number: 11450514
    Abstract: Embodiments of methods and apparatus for reducing particle formation in physical vapor deposition (PVD) chambers are provided herein. In some embodiments, a method of reducing particle formation in a PVD chamber includes: performing a plurality of first deposition processes on a corresponding series of substrates disposed on a substrate support in the PVD chamber, wherein the PVD chamber includes a cover ring disposed about the substrate support and having a texturized outer surface, and wherein a silicon nitride (SiN) layer having a first thickness is deposited onto the texturized outer surface during each of the plurality of first deposition processes; and performing a second deposition process on the cover ring between subsets of the plurality of first deposition processes to deposit an amorphous silicon layer having a second thickness onto an underlying silicon nitride (SiN) layer.
    Type: Grant
    Filed: March 17, 2021
    Date of Patent: September 20, 2022
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Wei Dou, Yong Cao, Mingdong Li, Shane Lavan, Jothilingam Ramalingam, Chengyu Liu
  • Publication number: 20150335670
    Abstract: A method for preparing a platelet aggregation inhibitor, a blood coagulation inhibitor, and a pharmaceutical composition or a food for preventing or treating thrombotic diseases, includes applying notoginsenoside Fc.
    Type: Application
    Filed: January 9, 2014
    Publication date: November 26, 2015
    Inventors: Zhengtao Wang, Bo Gao, Li Yang, Xiaojun Wu, Wei Dou, Chunyong He, Qing Liu, Rufeng Wang, Eryun Zhang
  • Patent number: D1072774
    Type: Grant
    Filed: February 6, 2021
    Date of Patent: April 29, 2025
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Shane Lavan, Madan Kumar Shimoga Mylarappa, Sundarapandian Ramalinga Vijayalakshmi Reddy, Avinash Nayak, Wei Dou, Yong Cao, Kirankumar Neelasandra Savandaiah, Mingdong Li
  • Patent number: D1129517
    Type: Grant
    Filed: January 17, 2025
    Date of Patent: June 9, 2026
    Assignee: Applied Materials Inc.
    Inventors: Shane Lavan, Madan Kumar Shimoga Mylarappa, Sundarapandian Ramalinga Vijayalakshmi Reddy, Avinash Nayak, Wei Dou, Yong Cao, Kirankumar Neelasandra Savandaiah, Mingdong Li