Patents by Inventor Chih-Hao Chang

Chih-Hao 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: 20220360775
    Abstract: A video encoding method includes: during a first period, performing an encoding process upon a first block group of a current frame to generate a first block group bitstream; and during a second period, transmitting a second block group bitstream derived from encoding a second block group of the current frame, wherein the second period overlaps the first period. The encoding process includes: during a first time segment of the first period, performing a first in-loop filtering process upon a first group of pixels; and during a second time segment of the first period, performing a second in-loop filtering process upon a second group of pixels, wherein the second time segment overlaps the first time segment, and a non-zero pixel distance exists between a first edge pixel of the first group of pixels and a second edge pixel of the second group of pixels in a filter direction.
    Type: Application
    Filed: April 21, 2022
    Publication date: November 10, 2022
    Applicant: MEDIATEK INC.
    Inventors: Tung-Hsing Wu, Shih-Yu Chen, Jer-Ming Chang, Chih-Hao Chang, Han-Liang Chou
  • Patent number: 11469227
    Abstract: A semiconductor device includes a first fin field effect transistor (FinFET) and a contact bar (source/drain (S/D) contact layer). The first FinFET includes a first fin structure extending in a first direction, a first gate structure extending in a second direction crossing the first direction, and a first S/D structure. The contact bar is disposed over the first S/D structure and extends in the second direction crossing the first S/D structure in plan view. The contact bar includes a first portion disposed over the first S/D structure and a second portion. The second portion overlaps no fin structure and no S/D structure. A width of the second portion in the first direction is smaller than a width of the first portion in the first direction in plan view.
    Type: Grant
    Filed: August 17, 2020
    Date of Patent: October 11, 2022
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Chih-Hao Chang, Wen-Huei Guo, Yi-Shien Mor
  • Publication number: 20220310499
    Abstract: A circuit substrate includes a base substrate, a plurality of conductive vias, a first redistribution circuit structure, a second redistribution circuit structure and a semiconductor die. The plurality of conductive vias penetrate through the base substrate. The first redistribution circuit structure is located on the base substrate and connected to the plurality of conductive vias. The second redistribution circuit structure is located over the base substrate and electrically connected to the plurality of conductive vias, where the second redistribution circuit structure includes a plurality of conductive blocks, and at least one of the plurality of conductive blocks is electrically connected to two or more than two of the plurality of conductive vias, and where the base substrate is located between the first redistribution circuit structure and the second redistribution circuit structure.
    Type: Application
    Filed: March 25, 2021
    Publication date: September 29, 2022
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Shih-Wei Chen, Yu-Chih Huang, Chih-Hao Chang, Po-Chun Lin, Chun-Ti Lu, Chia-Hung Liu, Hao-Yi Tsai
  • Publication number: 20220293467
    Abstract: A method for microstructure modification of conducting lines is provided. An electroplating process is performed to deposit the metal thin film/conducting line(s) with a face-centered cubic (FCC) structure and a preferred crystallographic orientation over a surface of a substrate. The metal thin film/ conducting line(s) is subsequently subjected to a thermal annealing process to modify its microstructure with the grain sizes in a range of 5 ?m to 100 ?m. The thermal annealing process is conducted at the temperature of above 25 degrees Celsius and below 240 degrees Celsius.
    Type: Application
    Filed: March 10, 2021
    Publication date: September 15, 2022
    Inventors: Cheng EN HO, Cheng Yu LEE, Ping Chou LIN, Chih Pin PAN, Chih Hao CHANG
  • Publication number: 20220285566
    Abstract: A semiconductor package is provided. The semiconductor package includes a heat dissipation substrate including a first conductive through-via embedded therein; a sensor die disposed on the heat dissipation substrate; an insulating encapsulant laterally encapsulating the sensor die; a second conductive through-via penetrating through the insulating encapsulant; and a first redistribution structure and a second redistribution structure disposed on opposite sides of the heat dissipation substrate. The second conductive through-via is in contact with the first conductive through-via. The sensor die is located between the second redistribution structure and the heat dissipation substrate. The second redistribution structure has a window allowing a sensing region of the sensor die receiving light. The first redistribution structure is electrically connected to the sensor die through the first conductive through-via, the second conductive through-via and the second redistribution structure.
    Type: Application
    Filed: May 23, 2022
    Publication date: September 8, 2022
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chih-Hsuan Tai, Hao-Yi Tsai, Yu-Chih Huang, Chih-Hao Chang, Chia-Hung Liu, Ban-Li Wu, Ying-Cheng Tseng, Po-Chun Lin
  • Patent number: 11430693
    Abstract: A method for microstructure modification of conducting lines is provided. An electroplating process is performed to deposit the metal thin film/conducting line(s) with a face-centered cubic (FCC) structure and a preferred crystallographic orientation over a surface of a substrate. The metal thin film/conducting line(s) is subsequently subjected to a thermal annealing process to modify its microstructure with the grain sizes in a range of 5 ?m to 100 ?m. The thermal annealing process is conducted at the temperature of above 25 degrees Celsius and below 240 degrees Celsius.
    Type: Grant
    Filed: March 10, 2021
    Date of Patent: August 30, 2022
    Assignee: YUAN ZE UNIVERSITY
    Inventors: Cheng En Ho, Cheng Yu Lee, Ping Chou Lin, Chih Pin Pan, Chih Hao Chang
  • Publication number: 20220223727
    Abstract: A semiconductor structure includes an isolation feature formed in the semiconductor substrate and a first fin-type active region. The first fin-type active region extends in a first direction. A dummy gate stack is disposed on an end region of the first fin-type active region. The dummy, gate stack may overlie an isolation structure. In an embodiment, any recess such as formed for a source/drain region in the first fin-type active region will be displaced from the isolation region by the distance the dummy gate stack overlaps the first fin-type active region.
    Type: Application
    Filed: January 27, 2022
    Publication date: July 14, 2022
    Inventors: Shao-Ming YU, Chang-Yun CHANG, Chih-Hao CHANG, Hsin-Chih CHEN, Kai-Tai CHANG, Ming-Feng SHIEH, Kuei-Liang LU, Yi-Tang LIN
  • Patent number: 11382233
    Abstract: A removable lever apparatus for inserting and removing computer equipment from a chassis module of a server rack includes a central rotatable structure, a long arm connected to and extending in a first direction away from the central rotatable structure, and a short arm connected to and extending in a second direction away from the central rotatable structure. The central rotatable structure includes a rotation stopper for limiting rotation about the axis of rotation between an inserting position and a removing position. The central rotatable structure also includes a retention structure for maintaining the coupling to the tray when the central rotatable structure is in a position other than the inserting position. The short arm is configured to engage a side wall of the chassis module when the central rotatable structure is rotated.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: July 5, 2022
    Assignee: QUANTA COMPUTER INC.
    Inventors: Chun Chang, Hsin-Chieh Lin, Chih-Hao Chang, You-Lin Tu
  • Patent number: 11374136
    Abstract: A semiconductor package is provided. The semiconductor package includes a heat dissipation substrate including a first conductive through-via embedded therein; a sensor die disposed on the heat dissipation substrate; an insulating encapsulant laterally encapsulating the sensor die; a second conductive through-via penetrating through the insulating encapsulant; and a first redistribution structure and a second redistribution structure disposed on opposite sides of the heat dissipation substrate. The second conductive through-via is in contact with the first conductive through-via. The sensor die is located between the second redistribution structure and the heat dissipation substrate. The second redistribution structure has a window allowing a sensing region of the sensor die receiving light. The first redistribution structure is electrically connected to the sensor die through the first conductive through-via, the second conductive through-via and the second redistribution structure.
    Type: Grant
    Filed: January 20, 2020
    Date of Patent: June 28, 2022
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chih-Hsuan Tai, Hao-Yi Tsai, Yu-Chih Huang, Chih-Hao Chang, Chia-Hung Liu, Ban-Li Wu, Ying-Cheng Tseng, Po-Chun Lin
  • Patent number: 11369036
    Abstract: A component housing insertable in a chassis for a computing device blocking air flow when in a pulled out position is disclosed. The component housing has a front end and an opposite rear end. A pair of side walls are provided between the front end and the rear end. The side walls are slidably connected to the chassis to allow the component housing to be moved between an inserted position and the pulled-out position. A cover on the rear end has an open position allowing air flow through the rear end when the component housing is in the inserted position. The cover has a closed position blocking air flow through the aperture when the component housing is in the pulled out position.
    Type: Grant
    Filed: November 16, 2020
    Date of Patent: June 21, 2022
    Assignee: QUANTA COMPUTER INC.
    Inventors: Chun Chang, Chih-Hao Chang, Yi-Fu Liu, Ching-Cheng Kung
  • Publication number: 20220173245
    Abstract: A field effect transistor includes a substrate comprising a fin structure. The field effect transistor further includes an isolation structure in the substrate. The field effect transistor further includes a source/drain (S/D) recess cavity below a top surface of the substrate. The S/D recess cavity is between the fin structure and the isolation structure. The field effect transistor further includes a strained structure in the S/D recess cavity. The strain structure includes a lower portion. The lower portion includes a first strained layer, wherein the first strained layer is in direct contact with the isolation structure, and a dielectric layer, wherein the dielectric layer is in direct contact with the substrate, and the first strained layer is in direct contact with the dielectric layer. The strained structure further includes an upper portion comprising a second strained layer overlying the first strained layer.
    Type: Application
    Filed: February 14, 2022
    Publication date: June 2, 2022
    Inventors: Tsung-Lin Lee, Chih-Hao Chang, Chih-Hsin Ko, Feng Yuan, Jeff J. Xu
  • Publication number: 20220141985
    Abstract: A removable lever apparatus for inserting and removing computer equipment from a chassis module of a server rack includes a central rotatable structure, a long arm connected to and extending in a first direction away from the central rotatable structure, and a short arm connected to and extending in a second direction away from the central rotatable structure. The central rotatable structure includes a rotation stopper for limiting rotation about the axis of rotation between an inserting position and a removing position. The central rotatable structure also includes a retention structure for maintaining the coupling to the tray when the central rotatable structure is in a position other than the inserting position. The short arm is configured to engage a side wall of the chassis module when the central rotatable structure is rotated.
    Type: Application
    Filed: October 30, 2020
    Publication date: May 5, 2022
    Inventors: Chun CHANG, Hsin-Chieh LIN, Chih-Hao CHANG, You-Lin TU
  • Patent number: 11322474
    Abstract: A semiconductor package includes a first chip and a second chip arranged side by side on a carrier substrate. The first chip is provided with a high-speed signal pads along a first side in proximity to the second chip. The second chip includes a redistribution layer, and the redistribution layer is provided with data (DQ) pads along the second side in proximity to the first chip. A plurality of first bonding wires is provided to directly connect the high-speed signal pads to the DQ pads. The redistribution layer of the second chip is provided with first command/address (CA) pads along the third side opposite to the second side, and a plurality of dummy pads corresponding to the first CA pads. The plurality of dummy pads are connected to second CA pads disposed along a fourth side of the second chip via interconnects of the redistribution layer.
    Type: Grant
    Filed: March 5, 2021
    Date of Patent: May 3, 2022
    Assignee: Realtek Semiconductor Corp.
    Inventors: Chin-Yuan Lo, Chih-Hao Chang, Tze-Min Shen
  • Publication number: 20220125601
    Abstract: An implant guide system for hip replacement surgery includes an angle guide member and a first positioning plate. The angle guide member has a body and a protrusion that are substantially connected to each other. The body has a curved surface corresponding in shape to a surface of a patient's acetabulum. The protrusion has a first through hole extending to the body. An acute angle is defined between an extension line of the first through hole and a flat surface of the body. The first positioning plate has a first holding portion and a first spacing portion that are substantially connected to each other. The first spacing portion has a second through hole, a third through hole and a fourth through hole that are parallel to each other.
    Type: Application
    Filed: October 7, 2021
    Publication date: April 28, 2022
    Inventors: Jiann-Jong Liau, Chih-Hao Chang, Kui-Chou Huang, Yi-Wen Chen, Cheng-Ting Shih
  • Patent number: 11282920
    Abstract: A semiconductor device structure is provided. The semiconductor device structure includes a source/drain contact structure formed over a semiconductor substrate, and a first gate stack formed over the semiconductor substrate and adjacent to the source/drain contact structure. The semiconductor device structure also includes an insulating cap structure formed over and separated from an upper surface of the first gate stack. In addition, the semiconductor device structure includes first gate spacers formed over opposing sidewalls of the first gate stack to separate the first gate stack from the source/drain contact structure. The first gate spacers extend over opposing sidewalls of the insulating cap structure, so as to form an air gap surrounded by the first gate spacers, the first gate stack, and the insulating cap structure.
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: March 22, 2022
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Tien-Lu Lin, Che-Chen Wu, Chia-Lin Chuang, Yu-Ming Lin, Chih-Hao Chang
  • Publication number: 20220071051
    Abstract: A component housing insertable in a chassis for a computing device blocking air flow when in a pulled out position is disclosed. The component housing has a front end and an opposite rear end. A pair of side walls are provided between the front end and the rear end. The side walls are slidably connected to the chassis to allow the component housing to be moved between an inserted position and the pulled-out position. A cover on the rear end has an open position allowing air flow through the rear end when the component housing is in the inserted position. The cover has a closed position blocking air flow through the aperture when the component housing is in the pulled out position.
    Type: Application
    Filed: November 16, 2020
    Publication date: March 3, 2022
    Inventors: Chun CHANG, Chih-Hao CHANG, Yi-Fu LIU, Ching-Cheng KUNG
  • Patent number: 11251303
    Abstract: A field effect transistor includes a substrate comprising a fin structure. The field effect transistor further includes an isolation structure in the substrate. The field effect transistor further includes a source/drain (S/D) recess cavity below a top surface of the substrate. The S/D recess cavity is between the fin structure and the isolation structure. The field effect transistor further includes a strained structure in the S/D recess cavity. The strain structure includes a lower portion. The lower portion includes a first strained layer, wherein the first strained layer is in direct contact with the isolation structure, and a dielectric layer, wherein the dielectric layer is in direct contact with the substrate, and the first strained layer is in direct contact with the dielectric layer. The strained structure further includes an upper portion comprising a second strained layer overlying the first strained layer.
    Type: Grant
    Filed: August 5, 2020
    Date of Patent: February 15, 2022
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Tsung-Lin Lee, Chih-Hao Chang, Chih-Hsin Ko, Feng Yuan, Jeff J. Xu
  • Patent number: 11249523
    Abstract: An air baffle insertable between a chassis wall and a computer component such as a GPU and heat sink mounted on a GPU tray to divert air flow to the computer component is disclosed. The air baffle includes a single sheet having a bottom panel, a top panel, and a pair of parallel side walls. Each of the parallel side walls are connected to the bottom and top panels. A first end wall is joined to the side walls and the top and bottom panel. The first end wall directs air flow toward the computer component.
    Type: Grant
    Filed: August 7, 2020
    Date of Patent: February 15, 2022
    Assignee: QUANTA COMPUTER INC.
    Inventors: Chun Chang, Hsin-Chieh Lin, Chih-Hao Chang, Tzu-Fong Wang
  • Patent number: 11239365
    Abstract: A semiconductor structure includes an isolation feature formed in the semiconductor substrate and a first fin-type active region. The first fin-type active region extends in a first direction. A dummy gate stack is disposed on an end region of the first fin-type active region. The dummy gate stack may overlie an isolation structure. In an embodiment, any recess such as formed for a source/drain region in the first fin-type active region will be displaced from the isolation region by the distance the dummy gate stack overlaps the first fin-type active region.
    Type: Grant
    Filed: December 24, 2019
    Date of Patent: February 1, 2022
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Shao-Ming Yu, Chang-Yun Chang, Chih-Hao Chang, Hsin-Chih Chen, Kai-Tai Chang, Ming-Feng Shieh, Kuei-Liang Lu, Yi-Tang Lin
  • Patent number: 11227854
    Abstract: A semiconductor package includes a carrier substrate including opposite first surface and second surface; a first chip and a second chip mounted on the first surface of the carrier substrate in a side-by-side manner, wherein the first chip has a plurality of high-speed signal pads disposed along its first side adjacent to the second chip, and the second chip has a plurality of data (DQ) pads along its second side adjacent to the first chip; and a plurality of first bonding wires, directly connecting the plurality of high-speed signal pads to the plurality of data (DQ) pads.
    Type: Grant
    Filed: May 12, 2020
    Date of Patent: January 18, 2022
    Assignee: Realtek Semiconductor Corp.
    Inventors: Chin-Yuan Lo, Nan-Chin Chuang, Chih-Hao Chang