Patents by Inventor Chien-Chia Cheng

Chien-Chia Cheng 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: 20240155491
    Abstract: Various solutions for low-power wake-up signal (LP-WUS) monitoring with respect to user equipment and network node in mobile communications are described. An apparatus may receive a configuration from a network node. The apparatus may comprise a main radio (MR) and a lower-power wake-up radio (LP-WUR). The apparatus may determine whether to activate or deactivate a low-power wake-up signal (LP-WUS) monitoring by the LP-WUR according to at least one pre-configured condition in the configuration. The apparatus may receive an LP-WUS from the network node via the LP-WUR in an event that the LP-WUS monitoring is activated.
    Type: Application
    Filed: October 12, 2023
    Publication date: May 9, 2024
    Inventors: Chien-Chun Cheng, Wei-De Wu, Yi-Ju Liao, Yi-Chia Lo, Cheng-Hsun Li
  • Publication number: 20230011474
    Abstract: A method includes etching a semiconductor substrate to form a trench between a first semiconductor strip and a second semiconductor strip. The first semiconductor strip has a first width at about 5 nm below a top of the first semiconductor strip and a second width at about 60 nm below the top of the first semiconductor strip. The first width is smaller than about 5 nm, and the second width is smaller than about 14.5 nm. The trench is filled with dielectric materials to form an isolation region, which is recessed to have a depth. A top portion of the first semiconductor strip protrudes higher than the isolation region to form a protruding fin. The protruding fin has a height smaller than the depth. A gate stack is formed to extend on a sidewall and a top surface of the protruding fin.
    Type: Application
    Filed: January 17, 2022
    Publication date: January 12, 2023
    Inventors: De-Wei Yu, Ming-Feng Hsieh, Hsueh-Chang Sung, Pei-Ren Jeng, Yee-Chia Yeo, Chien-Chia Cheng
  • Patent number: 9276380
    Abstract: A device for controlling light emissions and a method for fabricating the device are disclosed herein. A quantum well of an active region of a semiconductor device may comprise a quantum structure lattice having lattice geometries that satisfies the Bragg condition, such that inter-quantum structure distance d between a first quantum structure and a second quantum structure within the quantum structure lattice is an integer multiple of a emission half wavelength m?o/2n, where m is an integer, ?o is a wavelength in free space, and n is a refractive index of a cladding material of the quantum well.
    Type: Grant
    Filed: September 30, 2012
    Date of Patent: March 1, 2016
    Inventors: Keh-Yung Cheng, Chien-Chia Cheng, Kuang-Chien Hsieh
  • Publication number: 20130230069
    Abstract: A device for controlling light emissions and a method for fabricating the device are disclosed herein. A quantum well of an active region of a semiconductor device may comprise a quantum structure lattice having lattice geometries that satisfies the Bragg condition, such that inter-quantum structure distance d between a first quantum structure and a second quantum structure within the quantum structure lattice is an integer multiple of a emission half wavelength m?o/2n, where m is an integer, ?o is a wavelength in free space, and n is a refractive index of a cladding material of the quantum well.
    Type: Application
    Filed: September 30, 2012
    Publication date: September 5, 2013
    Inventors: Keh-Yung Cheng, Chien-Chia Cheng, Kuang-Chien Hsieh