Patents by Inventor Ryunosuke HANDA

Ryunosuke HANDA 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: 20260016751
    Abstract: A laminate includes a substrate, an adherent film formed thereon from a composition comprising a polymer and an organic solvent, and a resist film formed on the adherent film from a resist composition comprising a hypervalent iodine compound, a carboxy-containing compound and a solvent. When the laminate is processed by EB or EUV lithography, the resist film exhibits a high sensitivity and maximum resolution.
    Type: Application
    Filed: July 2, 2025
    Publication date: January 15, 2026
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventors: Shun Kikuchi, Daisuke Kori, Ryunosuke Handa, Satoshi Kusama, Kousuke Ohyama, Masaki Ohashi
  • Publication number: 20250291245
    Abstract: The non-chemically amplified resist composition exhibits a high sensitivity and resolution when processed by photolithography using high-energy radiation, typically electron beam (EB) lithography and EUV lithography. The resist composition can be applicable for forming a pattern forming process. The resist composition comprises a hypervalent bismuth compound, a carboxylic acid, and a solvent.
    Type: Application
    Filed: March 7, 2025
    Publication date: September 18, 2025
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventors: Masaki Ohashi, Shun Kikuchi, Ryunosuke Handa, Satoshi Kusama
  • Publication number: 20250291249
    Abstract: The non-chemically amplified resist composition which exhibits a high sensitivity and resolution when processed by photolithography using high-energy radiation, typically electron beam (EB) lithography and EUV lithography, a laminated film including a resist film obtained from the resist composition. The resist composition comprises a hypervalent bismuth compound, a carboxy group-containing polymer, and a solvent.
    Type: Application
    Filed: March 7, 2025
    Publication date: September 18, 2025
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventors: Masaki Ohashi, Ryunosuke Handa, Shun Kikuchi, Satoshi Kusama, Kousuke Ohyama
  • Publication number: 20250244666
    Abstract: The non-chemically-amplified resist composition exhibits a high sensitivity and maximum resolution when processed by photolithography using high-energy radiation, typically EB and EUV lithography. The resist composition comprises a hypervalent iodine compound, a carboxy-containing polymer, and a solvent is provided. When processed by photolithography using high-energy radiation, the resist composition exhibits a high sensitivity and resolution.
    Type: Application
    Filed: January 23, 2025
    Publication date: July 31, 2025
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventors: Shun Kikuchi, Satoshi Kusama, Ryunosuke Handa, Masaki Ohashi
  • Publication number: 20240377730
    Abstract: The resist composition exhibits excellent sensitivity, resolution, and LWR when processed by photolithography using high-energy radiation, typically EB and EUV lithography, and a patterning process using the same. The resist composition comprises a specific tin compound and an organic solvent exhibits excellent sensitivity, resolution, and LWR when processed by photolithography using high-energy radiation.
    Type: Application
    Filed: May 1, 2024
    Publication date: November 14, 2024
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventors: Masaki Ohashi, Seiichiro Tachibana, Shun Kikuchi, Ryunosuke Handa
  • Publication number: 20240345480
    Abstract: The negative-tone molecular resist composition comprises an onium salt containing a cation having a cyclic ether site and an organic solvent has a high sensitivity and forms a resist film with improved resolution and LWR when processed by photolithography using high-energy radiation. The molecular resist composition of the invention meets both high sensitivity and high resolution and is improved in LWR when processed by photolithography using high-energy radiation, especially EB or EUV lithography. The resist composition is quite useful for precise micropatterning.
    Type: Application
    Filed: April 3, 2024
    Publication date: October 17, 2024
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventors: Masaki Ohashi, Shun Kikuchi, Seiichiro Tachibana, Ryunosuke Handa
  • Publication number: 20240272550
    Abstract: A resist composition is provided that comprises a hypervalent iodine compound having the formula (1), a carboxy group-containing polymer, and a solvent. In formula (1), n is an integer of 0 to 5, R1 and R2 are each independently halogen or a C1-C10 hydrocarbyl group which may contain a heteroatom, R1 and R2 may bond together to form a ring with the carbon atoms to which they are attached and the intervenient atoms. R3 is halogen or a C1-C40 hydrocarbyl group which may contain a heteroatom.
    Type: Application
    Filed: December 14, 2023
    Publication date: August 15, 2024
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventors: Masaki Ohashi, Seiichiro Tachibana, Shun Kikuchi, Ryunosuke Handa
  • Publication number: 20240116958
    Abstract: A compound for forming a metal-containing film to be contained in a composition for forming a metal-containing film used in manufacturing a semiconductor, where the compound for forming a metal-containing film is represented by the following general formula (M-1) or (M-2). This provides: a compound for forming a metal-containing film having better dry etching resistance than conventional resist underlayer film materials and also having high filling and planarizing properties; a composition for forming a metal-containing film containing the compound; a patterning process in which the composition is used as a resist underlayer film material; a patterning process in which the composition is used as a resist material; and a semiconductor photoresist material containing the composition.
    Type: Application
    Filed: September 6, 2023
    Publication date: April 11, 2024
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Naoki KOBAYASHI, Shohei IWAMORI, Daisuke KORI, Shun KIKUCHI, Ryunosuke HANDA, Seiichiro TACHIBANA