Patents by Inventor Chang Chen LIU

Chang Chen LIU 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: 12009211
    Abstract: Methods are provided herein for forming spacers on a patterned substrate. A self-aligned multiple patterning (SAMP) process is utilized for patterning structures, spacers formed adjacent mandrels, on a substrate. In one embodiment, a novel approach of etching titanium oxide (TiO2) spacers is provided. Highly anisotropic etching of the spacer along with a selective top deposition is provided. In one embodiment, an inductively coupled plasma (ICP) etch tool is utilized. The etching process may be achieved as a one-step etching process. More particularly, a protective layer may be selectively formed on the top of the spacer to protect the mandrel as well as minimize the difference of the etching rates of the spacer top and the spacer bottom. In one embodiment, the techniques may be utilized to etch TiO2 spacers formed along amorphous silicon mandrels using an ICP etch tool utilizing a one-step etch process.
    Type: Grant
    Filed: November 12, 2021
    Date of Patent: June 11, 2024
    Assignee: Tokyo Electron Limited
    Inventors: Ya-Ming Chen, Katie Lutker-Lee, Eric Chih-Fang Liu, Angelique Raley, Stephanie Oyola-Reynoso, Shihsheng Chang
  • Patent number: 11408557
    Abstract: The present invention provides a strap holding device for attachment to a structural member for holding a bottle, comprising a strap having a leading portion, a trailing portion and a securing region therebetween. The leading portion forms a holding loop for holding the bottle, and the trailing portion is used to wrap around the structural member for attachment of the device onto the structural member. The strap holding device is releasably attachable to the structural member for safely maintaining the bottle in place during exercise or travel, and is easily removed or withdrawn from the structural member.
    Type: Grant
    Filed: August 19, 2020
    Date of Patent: August 9, 2022
    Assignee: SIM DESIGN LIMITED
    Inventors: Siu Wah Wong, Yi Chia Chen, Szu Wen Wang, Chang Chen Liu
  • Publication number: 20210054965
    Abstract: The present invention provides a strap holding device for attachment to a structural member for holding a bottle, comprising a strap having a leading portion, a trailing portion and a securing region therebetween. The leading portion forms a holding loop for holding the bottle, and the trailing portion is used to wrap around the structural member for attachment of the device onto the structural member. The strap holding device is releasably attachable to the structural member for safely maintaining the bottle in place during exercise or travel, and is easily removed or withdrawn from the structural member.
    Type: Application
    Filed: August 19, 2020
    Publication date: February 25, 2021
    Inventors: Siu Wah WONG, Yi Chia CHEN, Szu Wen WANG, Chang Chen LIU
  • Patent number: D986048
    Type: Grant
    Filed: August 19, 2019
    Date of Patent: May 16, 2023
    Assignee: SIM DESIGN LIMITED
    Inventors: Siu Wah Wong, Yi Chia Chen, Szu Wen Wang, Chang Chen Liu