Patents by Inventor Jinhua Dai

Jinhua Dai 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: 20240116950
    Abstract: Provided are small molecule inhibitors of the KRAS(G12D) mutant oncoprotein having the structural formula: and pharmaceutically acceptable salts and compositions thereof, which are useful for treating cancers and related conditions.
    Type: Application
    Filed: September 8, 2023
    Publication date: April 11, 2024
    Inventors: Weiwen Ying, Chenghao Ying, Kevin P. Foley, Zhiyong Wang, Wei Yin, Liang Ma, Guoqiang Wang, Jinhua Li, Yaya Wang, Yan Dai, Thomas Prince
  • Patent number: 11768435
    Abstract: Materials and methods to immobilize photoacid generators on semiconducting substrates are provided. PAG-containing monomers are copolymerized with monomers to allow the polymer to bind to a surface, and optionally copolymerized with monomers to enhance solubility to generate PAG-containing polymers. The PAG-containing monomers can be coated onto a surface, where the immobilized PAGs can then be used to pattern materials coated on top of the immobilized PAGs, allowing direct patterning without the use of a photoresist, thereby reducing process steps and cost. The disclosed materials and processes can be used to produce conformal coatings of controlled thicknesses.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: September 26, 2023
    Assignee: Brewer Science, Inc.
    Inventors: Jinhua Dai, Joyce A. Lowes, Carissa Jones
  • Patent number: 11574805
    Abstract: Materials and methods for modifying semiconducting substrate surfaces in order to dramatically change surface energy are provided. Preferred materials include perfluorocarbon molecules or polymers with various functional groups. The functional groups (carboxylic acids, hydroxyls, epoxies, aldehydes, and/or thiols) attach materials to the substrate surface by physical adsorption or chemical bonding, while the perfluorocarbon components contribute to low surface energy. Utilization of the disclosed materials and methods allows rapid transformation of surface properties from hydrophilic to hydrophobic (water contact angle 120° and PGMEA contact angle) 70°. Selective liquiphobic modifications of copper over Si/SiOx, TiOx over Si/SiOx, and SiN over SiOx are also demonstrated.
    Type: Grant
    Filed: May 1, 2020
    Date of Patent: February 7, 2023
    Assignee: Brewer Science, Inc.
    Inventors: Jinhua Dai, Joyce A. Lowes, Reuben Chacko
  • Publication number: 20220181140
    Abstract: Materials and methods for modifying semiconducting substrate surfaces in order to dramatically change surface energy are provided. Preferred materials include perfluorocarbon molecules or polymers with various functional groups. The functional groups (carboxylic acids, hydroxyls, epoxies, aldehydes, and/or thiols) attach materials to the substrate surface by physical adsorption or chemical bonding, while the perfluorocarbon components contribute to low surface energy. Utilization of the disclosed materials and methods allows rapid transformation of surface properties from hydrophilic to hydrophobic (water contact angle 120° and PGMEA contact angle) 70°. Selective liquiphobic modifications of copper over Si/SiOx, TiOx over Si/SiOx, and SiN over SiOx are also demonstrated.
    Type: Application
    Filed: February 28, 2022
    Publication date: June 9, 2022
    Inventors: Jinhua Dai, Joyce A. Lowes, Reuben Chacko
  • Publication number: 20210082683
    Abstract: Materials and methods for modifying semiconducting substrate surfaces in order to dramatically change surface energy are provided. Preferred materials include perfluorocarbon molecules or polymers with various functional groups. The functional groups (carboxylic acids, hydroxyls, epoxies, aldehydes, and/or thiols) attach materials to the substrate surface by physical adsorption or chemical bonding, while the perfluorocarbon components contribute to low surface energy. Utilization of the disclosed materials and methods allows rapid transformation of surface properties from hydrophilic to hydrophobic (water contact angle 120° and PGMEA contact angle) 70°. Selective liquiphobic modifications of copper over Si/SiOx, TiOx over Si/SiOx, and SiN over SiOx are also demonstrated.
    Type: Application
    Filed: May 1, 2020
    Publication date: March 18, 2021
    Inventors: Jinhua Dai, Joyce A. Lowes, Reuben Chacko
  • Publication number: 20200142308
    Abstract: Materials and methods to immobilize photoacid generators on semiconducting substrates are provided. PAG-containing monomers are copolymerized with monomers to allow the polymer to bind to a surface, and optionally copolymerized with monomers to enhance solubility to generate PAG-containing polymers. The PAG-containing monomers can be coated onto a surface, where the immobilized PAGs can then be used to pattern materials coated on top of the immobilized PAGs, allowing direct patterning without the use of a photoresist, thereby reducing process steps and cost. The disclosed materials and processes can be used to produce conformal coatings of controlled thicknesses.
    Type: Application
    Filed: November 1, 2019
    Publication date: May 7, 2020
    Inventors: Jinhua Dai, Joyce A. Lowes, Carissa Jones
  • Patent number: 10366887
    Abstract: The present invention is broadly concerned with materials, processes, and structures that allow an underlayer to be imaged directly using conventional lithography, thus avoiding the photoresist processing steps required by prior art directed self-assembly (DSA) processes. The underlayers can be tailored to favor a selected block of the DSA block co-polymers (BCP), depending on the pattern, and can be formulated either to initially be neutral to the BCP and switch to non-neutral after photoexposure, or can initially be non-neutral to the BCP and switch to neutral after exposure. These materials allow fast crosslinking to achieve solvent resistance and possess good thermal stability.
    Type: Grant
    Filed: October 4, 2017
    Date of Patent: July 30, 2019
    Assignee: Brewer Science, Inc.
    Inventors: Jinhua Dai, Joyce Lowes
  • Patent number: 10331032
    Abstract: Photosensitive, developer-soluble bottom anti-reflective coatings are described. Compositions and methods of forming the same are also disclosed along with resulting microelectronic structures. The anti-reflective compositions comprise a multi-functional epoxy compound having multiple epoxy moieties pendant therefrom and one or more crosslinkable chromophores bonded thereto. The compounds are dispersed or dissolved in a solvent system with a vinyl ether crosslinker and can be used to create crosslinkable and de-crosslinkable coatings for microelectronics fabrication.
    Type: Grant
    Filed: April 22, 2013
    Date of Patent: June 25, 2019
    Assignee: Brewer Science, Inc.
    Inventors: Joyce Lowes, Jinhua Dai, Alice Guerrero
  • Publication number: 20180096838
    Abstract: The present invention is broadly concerned with materials, processes, and structures that allow an underlayer to be imaged directly using conventional lithography, thus avoiding the photoresist processing steps required by prior art directed self-assembly (DSA) processes. The underlayers can be tailored to favor a selected block of the DSA block co-polymers (BCP), depending on the pattern, and can be formulated either to initially be neutral to the BCP and switch to non-neutral after photoexposure, or can initially be non-neutral to the BCP and switch to neutral after exposure. These materials allow fast crosslinking to achieve solvent resistance and possess good thermal stability.
    Type: Application
    Filed: October 4, 2017
    Publication date: April 5, 2018
    Inventors: Jinhua Dai, Joyce Lowes
  • Patent number: 9482951
    Abstract: This invention describes compositions and methods of using non-covalently crosslinked resin coatings for lithographic applications. These materials are designed to undergo, after coating, a change that provides solvent resistance and, with some materials, simultaneous aqueous-base solubility. Non-covalent interactions allow for easier removal of these coatings than of covalently crosslinked materials. These types of materials are well-suited for trench and gap fill applications, as well as for anti-reflective coatings, spin-on carbon layers, and etch masks.
    Type: Grant
    Filed: July 28, 2008
    Date of Patent: November 1, 2016
    Assignee: Brewer Science Inc.
    Inventors: Daniel M. Sullivan, Runhui Huang, Charles J. Neef, Jinhua Dai, Michael B. Swope
  • Patent number: 9328246
    Abstract: Nonpolymeric compounds, compositions, and methods for forming microelectronic structures, and the structures formed therefrom are provided. The nonpolymeric compounds are ring-opened, epoxide-adamantane derivatives that comprise at least two epoxy moieties and at least one adamantyl group, along with at least one chemical modification group, such as a chromophore, bonded to a respective epoxy moiety. Anti-reflective and/or planarization compositions can be formed using these compounds and used in lithographic processes, including fabrication of microelectronic structures.
    Type: Grant
    Filed: January 17, 2013
    Date of Patent: May 3, 2016
    Assignee: Brewer Science Inc.
    Inventors: Daniel M. Sullivan, Charlyn Stroud, Jinhua Dai
  • Publication number: 20130280656
    Abstract: Photosensitive, developer-soluble bottom anti-reflective coatings are described. Compositions and methods of forming the same are also disclosed along with resulting microelectronic structures. The anti-reflective compositions comprise a multi-functional epoxy compound having multiple epoxy moieties pendant therefrom and one or more crosslinkable chromophores bonded thereto. The compounds are dispersed or dissolved in a solvent system with a vinyl ether crosslinker and can be used to create crosslinkable and de-crosslinkable coatings for microelectronics fabrication.
    Type: Application
    Filed: April 22, 2013
    Publication date: October 24, 2013
    Applicant: Brewer Science Inc.
    Inventors: Joyce Lowes, Jinhua Dai, Alice Guerrero
  • Publication number: 20090035590
    Abstract: This invention describes compositions and methods of using non-covalently crosslinked resin coatings for lithographic applications. These materials are designed to undergo, after coating, a change that provides solvent resistance and, with some materials, simultaneous aqueous-base solubility. Non-covalent interactions allow for easier removal of these coatings than of covalently crosslinked materials. These types of materials are well-suited for trench and gap fill applications, as well as for anti-reflective coatings, spin-on carbon layers, and etch masks.
    Type: Application
    Filed: July 28, 2008
    Publication date: February 5, 2009
    Inventors: Daniel M. Sullivan, Runhui Huang, Charles J. Neef, Jinhua Dai, Michael B. Swope