Patents by Inventor Li-Hsien Chang

Li-Hsien Chang 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: 20240161818
    Abstract: The invention provides a layout pattern of static random access memory (SRAM), which at least comprises a plurality of gate structures located on a substrate and spanning the plurality of fin structures to form a plurality of transistors distributed on the substrate, wherein the plurality of transistors comprise two pull-up transistors (PU), two pull-down transistors (PD) to form a latch circuit, and two access transistors (PG) connected to the latch circuit. In each SRAM memory cell, the fin structure included in the pull-up transistor (PU) is defined as a PU fin structure, the fin structure included in the pull-down transistor (PD) is defined as a PD fin structure, and the fin structure included in the access transistor (PG) is defined as a PG fin structure, wherein a width of the PD fin structure is wider than a width of the PG fin structure.
    Type: Application
    Filed: November 30, 2022
    Publication date: May 16, 2024
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Chun-Hsien Huang, Yu-Tse Kuo, Shu-Ru Wang, Li-Ping Huang, Yu-Fang Chen, Chun-Yen Tseng, Tzu-Feng Chang, Chun-Chieh Chang
  • Publication number: 20240162308
    Abstract: The present disclosure provides a semiconductor structure with having a source/drain feature with a central cavity, and a source/drain contact feature formed in central cavity of the source/drain region, wherein the source/drain contact feature is nearly wrapped around by the source/drain region. The source/drain contact feature may extend to a lower most of a plurality semiconductor layers.
    Type: Application
    Filed: February 9, 2023
    Publication date: May 16, 2024
    Inventors: Pin Chun SHEN, Che Chia CHANG, Li-Ying WU, Jen-Hsiang LU, Wen-Chiang HONG, Chun-Wing YEUNG, Ta-Chun LIN, Chun-Sheng LIANG, Shih-Hsun CHANG, Chih-Hao CHANG, Yi-Hsien CHEN
  • Publication number: 20240113112
    Abstract: Methods of cutting gate structures and fins, and structures formed thereby, are described. In an embodiment, a substrate includes first and second fins and an isolation region. The first and second fins extend longitudinally parallel, with the isolation region disposed therebetween. A gate structure includes a conformal gate dielectric over the first fin and a gate electrode over the conformal gate dielectric. A first insulating fill structure abuts the gate structure and extends vertically from a level of an upper surface of the gate structure to at least a surface of the isolation region. No portion of the conformal gate dielectric extends vertically between the first insulating fill structure and the gate electrode. A second insulating fill structure abuts the first insulating fill structure and an end sidewall of the second fin. The first insulating fill structure is disposed laterally between the gate structure and the second insulating fill structure.
    Type: Application
    Filed: December 1, 2023
    Publication date: April 4, 2024
    Inventors: Ryan Chia-Jen Chen, Cheng-Chung Chang, Shao-Hua Hsu, Yu-Hsien Lin, Ming-Ching Chang, Li-Wei Yin, Tzu-Wen Pan, Yi-Chun Chen
  • Publication number: 20240087980
    Abstract: A semiconductor device includes a substrate, a dielectric layer disposed over the substrate, and an interconnect structure extending through the dielectric layer. The dielectric layer includes a low-k dielectric material which includes silicon carbonitride having a carbon content ranging from about 30 atomic % to about 45 atomic %. The semiconductor device further includes a thermal dissipation feature extending through the dielectric layer and disposed to be spaced apart from the interconnect structure.
    Type: Application
    Filed: February 17, 2023
    Publication date: March 14, 2024
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Kai-Fang CHENG, Cherng-Shiaw TSAI, Cheng-Chin LEE, Yen-Ju WU, Yen-Pin HSU, Li-Ling SU, Ming-Hsien LIN, Hsiao-Kang CHANG
  • Patent number: 8109830
    Abstract: A driving simulation device for executing a simulating game includes a mounting frame and a seat body. The seat body has a coupling portion and a seating portion located above the coupling portion. The seat body further includes first and second connecting rods having at least two fixing parts journaled to the mounting frame, two swinging parts journaled to the coupling portion of the seat body and two coupling parts interconnecting the fixing parts and the swinging parts and transversely crossing each other. Once a rider is seated on the seating portion and swings the seat body so as to simulate a driving action, the seating portion and the coupling portion swing respectively in two directions opposite to each other, and thereby a swinging center of the seat body can fall between the coupling portion and the seating portion.
    Type: Grant
    Filed: September 23, 2008
    Date of Patent: February 7, 2012
    Assignee: International Games System Co., Ltd.
    Inventors: Li-Hsien Chang, Chi-Shian Wang
  • Publication number: 20090282941
    Abstract: A driving simulation device for simulating a driving game includes a mounting frame, a coupler shaft journaled to the mounting frame, extending along a coupling axis and cooperating with a horizontal direction to define an inclined acute angle, a seat body fixed on the coupler shaft above the mounting frame and having an extending direction, a seating portion and a driving portion disposed on the seat body along the extending direction. The extending direction of the seat body cooperates with the coupling axis to define a deviating acute angle therebetween. A swinging action of a rider on the seat body relative to the mounting frame results in turning of the seat body about the coupling axis, which, in turn, causes swinging action of the driving portion and the seating portion such that a swinging range of the driving portion is smaller than that of the seating portion.
    Type: Application
    Filed: September 23, 2008
    Publication date: November 19, 2009
    Applicant: IGS INTERNATIONAL GAMES SYSTEM CO., LTD.
    Inventors: LI-HSIEN CHANG, CHI-SHIAN WANG
  • Publication number: 20090286602
    Abstract: A driving simulation device for executing a simulating game includes a mounting frame and a seat body. The seat body has a coupling portion and a seating portion located above the coupling portion. The seat body further includes first and second connecting rods having at least two fixing parts journaled to the mounting frame, two swinging parts journaled to the coupling portion of the seat body and two coupling parts interconnecting the fixing parts and the swinging parts and transversely crossing each other. Once a rider is seated on the seating portion and swings the seat body so as to simulate a driving action, the seating portion and the coupling portion swing respectively in two directions opposite to each other, and thereby a swinging center of the seat body can fall between the coupling portion and the seating portion.
    Type: Application
    Filed: September 23, 2008
    Publication date: November 19, 2009
    Applicant: IGS INTERNATIONAL GAMES SYSTEM CO., LTD.
    Inventors: LI-HSIEN CHANG, CHI-SHIAN WANG