Patents by Inventor Chih-I Yang

Chih-I Yang 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: 20240154015
    Abstract: A method includes forming a first fin and a second fin protruding from a frontside of a substrate, forming a gate stack over the first and second fins, forming a dielectric feature dividing the gate stack into a first segment engaging the first fin and a second segment engaging the second fin, and growing a first epitaxial feature on the first fin and a second epitaxial feature on the second fin. The dielectric feature is disposed between the first and second epitaxial features. The method also includes performing an etching process on a backside of the substrate to form a backside trench, and forming a backside via in the backside trench. The backside trench exposes the dielectric feature and the first and second epitaxial features. The backside via straddles the dielectric feature and is in electrical connection with the first and second epitaxial features.
    Type: Application
    Filed: March 22, 2023
    Publication date: May 9, 2024
    Inventors: Jui-Lin CHEN, Hsin-Wen SU, Chih-Ching WANG, Chen-Ming LEE, Chung-I YANG, Yi-Feng TING, Jon-Hsu HO, Lien-Jung HUNG, Ping-Wei WANG
  • Publication number: 20240110576
    Abstract: An impeller is provided, including a metal housing, a shaft, and a plastic member. The metal housing has a shaft mounting hole. The inner surface of the shaft mounting hole includes three or more contact points, and the contact points are closer to the shaft than other portions of the inner surface of the shaft mounting hole. The shaft passes through the shaft mounting hole and is affixed by the contact points. The metal housing divides the shaft into an upper section, a middle section, and a lower section. The plastic member passes through the shaft mounting hole and is in contact with the middle section.
    Type: Application
    Filed: December 13, 2023
    Publication date: April 4, 2024
    Inventors: Wei-I LING, Chao-Fu YANG, Chih-Chung CHEN, Kuo-Tung HSU
  • Patent number: 11949001
    Abstract: The present disclosure provides a semiconductor device and a method of manufacturing the semiconductor device. The semiconductor device includes channel members disposed over a substrate, a gate structure engaging the channel members, and an epitaxial feature adjacent the channel members. At least one of the channel members has an end portion in physical contact with an outer portion of the epitaxial feature. The end portion of the at least one of the channel members includes a first dopant of a first concentration. The outer portion of the epitaxial feature includes a second dopant of a second concentration. The first concentration is higher than the second concentration.
    Type: Grant
    Filed: March 21, 2022
    Date of Patent: April 2, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Chih-Ching Wang, Chung-I Yang, Jon-Hsu Ho, Wen-Hsing Hsieh, Kuan-Lun Cheng, Chung-Wei Wu, Zhiqiang Wu
  • Patent number: 11940388
    Abstract: Example methods are provided to improve placement of an adaptor (210,220) to a mobile computing device (100) to measure a test strip (221) coupled to the adaptor (220) with a camera (104) and a screen (108) on a face of the mobile computing device (100). The method may include displaying a light area on a first portion of the screen (108). The first portion may be adjacent to the camera (104). The light area and the camera (104) may be aligned with a key area of the test strip (221) so that the camera (104) is configured to capture an image of the key area. The method may further include providing first guiding information for a user to place the adaptor (210,220) to the mobile computing device (100) according to a position of the light area on the screen (108).
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: March 26, 2024
    Assignee: IXENSOR CO., LTD.
    Inventors: Yenyu Chen, An Cheng Chang, Tai I Chen, Su Tung Yang, Chih Jung Hsu, Chun Cheng Lin, Min Han Wang, Shih Hao Chiu
  • Patent number: 11911031
    Abstract: This disclosure relates to a surgical tool configured for holding an implant includes an inner rod and a sleeve. The inner rod includes a rod portion and a holding portion. The holding portion is located at one end of the rod portion and has a first accommodation space configured for accommodating at least part of the implant. The sleeve includes a sleeving portion and a retaining portion. The sleeving portion is slidably sleeved on the rod portion of the inner rod. The retaining portion is located at one end of the sleeving portion and selectively presses against the holding portion. The inner rod further includes at least one fin portion protruded from the holding portion and located in the first accommodation space for being inserted into at least one slot of the implant.
    Type: Grant
    Filed: December 27, 2022
    Date of Patent: February 27, 2024
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Fang-Chieh Chang, Pei-I Tsai, Shu-Fen Yeh, Kuo-Yi Yang, Chih-Chieh Huang
  • Patent number: 8603348
    Abstract: A method of removing an alumina layer around a main pole layer during perpendicular magnetic recording head fabrication is disclosed. The alumina etch sequence includes immersing a substrate in a series of aqueous solutions purged with an inert gas to remove oxygen thereby avoiding corrosion of the main pole. Initially, the substrate is soaked and heated in deionized (DI) water. Once heated, the substrate is immersed in an etching bath at about 80° C. and pH 10.5. Bath chemistry is preferably based on Na2CO3 and NaHCO3, and N2 purging improves etch uniformity and reduces residue. Thereafter, the substrate is rinsed in a second DI water bath between room temperature and 80° C., and finally subjected to a quick dump rinse before drying. Inert gas, preferably N2, may be introduced into the aqueous solutions through a purge board having a plurality of openings and positioned proximate to the bottom of a bath container.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: December 10, 2013
    Assignee: Headway Technologies, Inc.
    Inventors: Chao-Peng Cheng, Chih-I Yang, Jas Chudasama, William Stokes, Chien-Li Lin, David Wagner
  • Publication number: 20120181181
    Abstract: A method of removing an alumina layer around a main pole layer during perpendicular magnetic recording head fabrication is disclosed. The alumina etch sequence includes immersing a substrate in a series of aqueous solutions purged with an inert gas to remove oxygen thereby avoiding corrosion of the main pole. Initially, the substrate is soaked and heated in deionized (DI) water. Once heated, the substrate is immersed in an etching bath at about 80° C. and pH 10.5. Bath chemistry is preferably based on Na2CO3 and NaHCO3, and N2 purging improves etch uniformity and reduces residue. Thereafter, the substrate is rinsed in a second DI water bath between room temperature and 80° C., and finally subjected to a quick dump rinse before drying. Inert gas, preferably N2, may be introduced into the aqueous solutions through a purge board having a plurality of openings and positioned proximate to the bottom of a bath container.
    Type: Application
    Filed: January 14, 2011
    Publication date: July 19, 2012
    Inventors: Chao-Peng Cheng, Chih-I Yang, Jas Chudasama, William Stokes, Chien-Li Lin, David Wagner