Patents by Inventor Chia-Yun Hsieh

Chia-Yun Hsieh 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: 11537049
    Abstract: A substrate is provided with a patterned layer, for example, a photo resist layer, which may exhibit line roughness. In one exemplary embodiment, the patterned layer may be an extreme ultraviolet (EUV) photo resist layer. In one method, selective deposition of additional material is provided on the EUV photo resist layer after patterning to provide improved roughness and lithographic structure height to allow for more process margin when transferring the pattern to a layer underlying the photo resist. The additional material is deposited selectively thicker in areas above the photo resist than in areas where the photo resist is not present, such as exposed areas between the photo resist pattern. Pattern transfer to a layer underlying the photo resist may then occur (for example via an etch) while the patterned photo resist and additional material above the photo resist may collectively operate as an etch mask.
    Type: Grant
    Filed: November 12, 2019
    Date of Patent: December 27, 2022
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Toshiharu Wada, Chia-Yun Hsieh, Akiteru Ko
  • Publication number: 20200272054
    Abstract: A substrate is provided with a patterned layer, for example, a photo resist layer, which may exhibit line roughness. In one exemplary embodiment, the patterned layer may be an extreme ultraviolet (EUV) photo resist layer. In one method, selective deposition of additional material is provided on the EUV photo resist layer after patterning to provide improved roughness and lithographic structure height to allow for more process margin when transferring the pattern to a layer underlying the photo resist. The additional material is deposited selectively thicker in areas above the photo resist than in areas where the photo resist is not present, such as exposed areas between the photo resist pattern. Pattern transfer to a layer underlying the photo resist may then occur (for example via an etch) while the patterned photo resist and additional material above the photo resist may collectively operate as an etch mask.
    Type: Application
    Filed: November 12, 2019
    Publication date: August 27, 2020
    Inventors: Toshiharu Wada, Chia-Yun Hsieh, Akiteru Ko
  • Patent number: 10221272
    Abstract: A method of forming a patterned polymer layer on a substrate and a substrate having a polymer layer formed by the method. The method includes providing a substrate comprising a first surface having a first surface energy and a pattern located on the substrate forming a second surface having a second, lower surface energy than the first surface, and selectively depositing a polymeric layer onto the first surface using a monomer material in an initiated chemical vapor deposition process, wherein the initiated chemical vapor deposition process is operated under supersaturation conditions during the deposition process.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: March 5, 2019
    Assignee: DREXEL UNIVERSITY
    Inventors: Kenneth Ka Shun Lau, Sruthi Janakiraman, Chia-Yun Hsieh
  • Publication number: 20170350005
    Abstract: A method of forming a patterned polymer layer on a substrate and a substrate having a polymer layer formed by the method. The method includes providing a substrate comprising a first surface having a first surface energy and a pattern located on the substrate forming a second surface having a second, lower surface energy than the first surface, and selectively depositing a polymeric layer onto the first surface using a monomer material in an initiated chemical vapor deposition process, wherein the initiated chemical vapor deposition process is operated under supersaturation conditions during the deposition process.
    Type: Application
    Filed: June 5, 2017
    Publication date: December 7, 2017
    Applicant: Drexel University
    Inventors: Kenneth Ka Shun Lau, Sruthi Janakiraman, Chia-Yun Hsieh