Patents by Inventor Shuangqing Wang

Shuangqing Wang 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: 20250138426
    Abstract: A silicon-containing molecular glass photoresist compound with high etching resistance, a preparation method therefor, and use thereof are provided. The compound has simple molecular structure, controllable molecular weight, simple synthesis steps, and relatively high thermal stability, resulting in no risk of precipitation in baking and less proneness to deformation in lithography; the negative molecular glass photoresist provided has relatively good film-forming property, relatively high thermal stability, resulting in less proneness to deformation during storage, and low viscosity without the use of additional solvents for dilution. The photoresist prepared by the compound can give a uniform film on a substrate by spin-coating, and the formula can be used in modern lithography technologies such as 365 nm lithography, 248 nm lithography, 193 nm lithography, extreme ultraviolet lithography, electron beam lithography, and the like.
    Type: Application
    Filed: October 28, 2022
    Publication date: May 1, 2025
    Inventors: Guoqiang YANG, Siliang ZHANG, Xudong GUO, Rui HU, Shuangqing WANG
  • Publication number: 20240184202
    Abstract: A positive chemically amplified photoresist of a fused ring aromatic hydrocarbon derivative, a preparation method therefor, and use thereof are provided. A matrix component in the photoresist is a fused ring aromatic hydrocarbon derivative represented by general formula (I) that can be dissolved in organic solvents commonly used in photoresists. The photoresist composition can be prepared to give a uniform film, and a molecular glass serving as the matrix component does not precipitate particles in the film preparation process.
    Type: Application
    Filed: November 3, 2023
    Publication date: June 6, 2024
    Inventors: Guoqiang YANG, Xue CONG, Xudong GUO, Rui HU, Shuangqing WANG
  • Publication number: 20240174656
    Abstract: A negative chemically amplified photoresist of a fused ring aromatic hydrocarbon derivative, a preparation method therefor, and use thereof are provided. A matrix component in the photoresist is a fused ring aromatic hydrocarbon derivative represented by general formula (I) that can be dissolved in organic solvents commonly used in photoresists. The photoresist composition of the present disclosure can be prepared to give a uniform film, and a molecular glass serving as the matrix component is not precipitated in the film preparation process.
    Type: Application
    Filed: November 7, 2023
    Publication date: May 30, 2024
    Inventors: Guoqiang YANG, Xue CONG, Xudong GUO, Rui HU, Shuangqing WANG
  • Publication number: 20220373885
    Abstract: A bisphenol A derivative, a preparation method therefor and use thereof in photolithography are provided. The compounds feature simple molecular structure, controllable molecular weight, simple synthesis steps, and relatively high thermal stability. They do not precipitate during baking and are not easily denatured during photolithography. The negative molecular glass photoresists have good film-forming property, high thermal stability, less proneness to properties varying during storage, and low viscosity, no need for additional solvents for dilution during use. After exposure at UV wavelength of 365 nm, the exposed pattern shows high contrast, excellent resolution and good sensitivity, and can present the lithographic line width of 3.5 ?m.
    Type: Application
    Filed: December 10, 2020
    Publication date: November 24, 2022
    Inventors: Guoqiang YANG, Yafei WANG, Long CHEN, Jiating YU, Rui HU, Xudong GUO, Shuangqing WANG
  • Publication number: 20200050743
    Abstract: An electronic storage system is provided. The system includes a housing, securable units within the housing, a kiosk to assign securable units to users and to provide the users with access credentials for accessing assigned securable units, and user portals within the housing and separate from the kiosk. Each user portal permits access to one or more of the securable units in accordance with access credentials entered into the portal. Each user portal is also operable to allow users to transfer rentals of assigned securable devices to other electronic storage systems. The system also permits access to assigned securable devices in accordance with access credentials received via text or SMS messages or via applications executing on a computer, NFC device, or smart device, such as a smart phone or tablet.
    Type: Application
    Filed: October 17, 2019
    Publication date: February 13, 2020
    Applicant: Tiburon Lockers Inc.
    Inventors: Jared Lowenthal, Thomas Little, Shuangqing Wang, Jianyun Gao, Sung-Yuan Chen
  • Patent number: 10474797
    Abstract: An electronic storage system is provided. The system includes a housing, securable units within the housing, a kiosk to assign securable units to users and to provide the users with access credentials for accessing assigned securable units, and user portals within the housing and separate from the kiosk. Each user portal permits access to one or more of the securable units in accordance with access credentials entered into the portal. Each user portal is also operable to allow users to transfer rentals of assigned securable devices to other electronic storage systems. The system also permits access to assigned securable devices in accordance with access credentials received via text or SMS messages or via applications executing on a computer, NFC device, or smart device, such as a smart phone or tablet.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: November 12, 2019
    Assignee: Tiburon Lockers Inc.
    Inventors: Jared Lowenthal, Thomas Little, Shuangqing Wang, Jianyun Gao, Sung-Yuan Chen
  • Publication number: 20170286649
    Abstract: An electronic storage system is provided. The system includes a housing, securable units within the housing, a kiosk to assign securable units to users and to provide the users with access credentials for accessing assigned securable units, and user portals within the housing and separate from the kiosk. Each user portal permits access to one or more of the securable units in accordance with access credentials entered into the portal. Each user portal is also operable to allow users to transfer rentals of assigned securable devices to other electronic storage systems. The system also permits access to assigned securable devices in accordance with access credentials received via text or SMS messages or via applications executing on a computer, NFC device, or smart device, such as a smart phone or tablet.
    Type: Application
    Filed: March 29, 2016
    Publication date: October 5, 2017
    Applicant: Tiburon Lockers Inc.
    Inventors: Jared Lowenthal, Thomas Little, Shuangqing Wang, Jianyun Gao, Sung-Yuan Chen
  • Patent number: 9454076
    Abstract: The present invention provides a class of molecular glass photoresist (I and II) comprising bisphenol A as a main structure and their preparation. The molecular glass photoresist is formulated with a photoacid generator, a cross-linking agent, a photoresist solvent, and other additives into a positive or negative photoresist. A photoresist with a uniform thickness is formed on a silicon wafer by spin-coating. The photoresist formulation can be used in modern lithography, such as 248 nm photolithography, 193 nm photolithography, extreme-ultraviolet (EUV) lithography, nanoimprint lithography, electron beam lithography, and particularly in the EUV-lithography technique.
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: September 27, 2016
    Assignee: INSTITUTE OF CHEMISTRY, CHINESE ACADEMY OF SCIENCES
    Inventors: Guoqiang Yang, Jian Xu, Li Chen, Shuangqing Wang, Shayu Li
  • Publication number: 20150037735
    Abstract: The present invention provides a class of molecular glass photoresist (I and II) comprising bisphenol A as a main structure and their preparation. The molecular glass photoresist is formulated with a photoacid generator, a cross-linking agent, a photoresist solvent, and other additives into a positive or negative photoresist. A photoresist with a uniform thickness is formed on a silicon wafer by spin-coating. The photoresist formulation can be used in modern lithography, such as 248 nm photolithography, 193 nm photolithography, extreme-ultraviolet (EUV) lithography, nanoimprint lithography, electron beam lithography, and particularly in the EUV-lithography technique.
    Type: Application
    Filed: May 18, 2012
    Publication date: February 5, 2015
    Applicant: INSTITUTE OF CHEMISTRY, CHINESE ACADEMY OF SCIENCES
    Inventors: Guoqiang Yang, Jian Xu, Li Chen, Shuangqing Wang, Shayu Li