Patents by Inventor Po-Yu YANG

Po-Yu 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: 20240088125
    Abstract: Devices and methods of manufacture for a deep trench layout area-saving semiconductor structure for use with bipolar-CMOS-DMOS (BCD) devices. A semiconductor device may comprise a first BCD device formed within a first perimeter of a first BCD layout area, and a deep trench isolation structure defining the first perimeter of the first BCD layout area, in which the deep trench isolation structure may comprise a first rounded corner that may define a first corner of the first BCD layout area. A semiconductor device may comprise, a substrate, BCD device formed on the substrate, and a deep trench isolation structure laterally surrounding the BCD device. The deep trench isolation structure, with respect to a top-down view, may comprise vertical portions, horizontal portions, a “T”-shaped intersection connecting at least one vertical portion and at least one horizontal portion, and a cross-shaped intersection connecting two vertical portions and two horizontal portions.
    Type: Application
    Filed: November 16, 2023
    Publication date: March 14, 2024
    Inventors: Tsung-Yu YANG, Po-Wei LIU
  • Patent number: 11930199
    Abstract: A method of decoding a bitstream by an electronic device is provided. The method determines a block unit from an image frame received from the bitstream. To reconstruct the block unit, the method receives, from a candidate list, first motion information having a first list flag for selecting a first reference frame and second motion information having a second list flag for selecting a second reference frame. The method then stores a predefined one of the first and second motion information for a sub-block determined in the block unit when the first list flag is identical to the second list flag.
    Type: Grant
    Filed: January 24, 2022
    Date of Patent: March 12, 2024
    Assignee: FG Innovation Company Limited
    Inventors: Chih-Yu Teng, Yu-Chiao Yang, Po-Han Lin
  • Patent number: 11929418
    Abstract: A gate structure includes a substrate divided into an N-type transistor region and a P-type transistor region. An interlayer dielectric covers the substrate. A first trench is embedded in the interlayer dielectric within the N-type transistor region. A first gate electrode having a bullet-shaped profile is disposed in the first trench. A gate dielectric contacts the first trench. An N-type work function layer is disposed between the gate dielectric layer and the first gate electrode. A second trench is embedded in the interlayer dielectric within the P-type transistor region. A second gate electrode having a first mushroom-shaped profile is disposed in the second trench. The gate dielectric layer contacts the second trench. The N-type work function layer is disposed between the gate dielectric layer and the second gate electrode. A first P-type work function layer is disposed between the gate dielectric layer and the N-type work function layer.
    Type: Grant
    Filed: November 11, 2021
    Date of Patent: March 12, 2024
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Jie-Ning Yang, Wen-Tsung Chang, Po-Wen Su, Kuan-Ying Lai, Bo-Yu Su, Chun-Mao Chiou, Yao-Jhan Wang
  • Publication number: 20240072153
    Abstract: A method for forming a high electron mobility transistor includes the steps of providing a substrate, forming a channel layer, a barrier layer, and a first passivation layer sequentially on the substrate, forming a plurality of trenches through at least a portion of the first passivation layer, forming a second passivation layer on the first passivation layer and covering along sidewalls and bottom surfaces of the trenches, and forming a conductive plate structure on the second passivation layer and filling the trenches.
    Type: Application
    Filed: November 9, 2023
    Publication date: February 29, 2024
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Po-Yu Yang, Hsun-Wen Wang
  • Patent number: 11916139
    Abstract: A semiconductor device includes a substrate, a semiconductor channel layer, a semiconductor barrier layer, and a gate electrode. The semiconductor channel layer is disposed on the substrate, and the semiconductor barrier layer is disposed on the semiconductor channel layer, where the surface of the semiconductor barrier layer includes at least one recess. The gate electrode is disposed on the semiconductor barrier layer and includes a body portion and at least one vertical extension portion overlapping the recess.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: February 27, 2024
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventor: Po-Yu Yang
  • Patent number: 11894434
    Abstract: A semiconductor device includes a substrate, a semiconductor channel layer, a semiconductor barrier layer, a gate electrode, a first electrode, and a dielectric layer. The semiconductor channel layer is disposed on the substrate, and the semiconductor barrier layer is disposed on the semiconductor channel layer. The gate electrode is disposed on the semiconductor barrier layer. The first electrode is disposed at one side of the gate electrode. The first electrode includes a body portion and a vertical extension portion. The body portion is electrically connected to the semiconductor barrier layer, and the bottom surface of the vertical extension portion is lower than the top surface of the semiconductor channel layer. The dielectric layer is disposed between the vertical extension portion and the semiconductor channel layer. The first electrode is a conformal layer covers the semiconductor barrier layer and the dielectric layer.
    Type: Grant
    Filed: September 28, 2022
    Date of Patent: February 6, 2024
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventor: Po-Yu Yang
  • Patent number: 11894373
    Abstract: A semiconductor device includes a substrate, a first transistor and a second transistor disposed on the substrate, and a first contact structure. The first transistor includes first semiconductor channel layers stacked and separated from one another, and a first source/drain structure and a second source/drain structure disposed at two opposite sides of and connected with each first semiconductor channel layer. The second transistor includes second semiconductor channel layers disposed above the first semiconductor channel layers, stacked, and separated from one another, and a third source/drain structure and a fourth source/drain structure disposed at two opposite sides of and connected with each second semiconductor channel layer. The first contact structure penetrates through the third source/drain structure.
    Type: Grant
    Filed: October 29, 2020
    Date of Patent: February 6, 2024
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventor: Po-Yu Yang
  • Patent number: 11894453
    Abstract: A method for fabricating high electron mobility transistor (HEMT) includes the steps of: forming a buffer layer on a substrate; forming a barrier layer on the buffer layer; forming a gate dielectric layer on the barrier layer; forming a work function metal layer on the gate dielectric layer; patterning the work function metal layer and the gate dielectric layer; forming a gate electrode on the work function metal layer; and forming a source electrode and a drain electrode adjacent to two sides of the gate electrode.
    Type: Grant
    Filed: August 28, 2022
    Date of Patent: February 6, 2024
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventor: Po-Yu Yang
  • Patent number: 11888025
    Abstract: A silicon on insulator (SOI) device includes a wafer and a trap-rich layer. The wafer includes a top silicon layer disposed on a buried oxide layer. The trap-rich layer having nano-dots and an oxide layer are stacked on a high resistivity substrate sequentially, wherein the oxide layer is bonded with the buried oxide layer. Or, a silicon on insulator (SOI) device includes a wafer and a high resistivity substrate. The wafer includes a top silicon layer disposed on a buried oxide layer. The high resistivity substrate is bonded with the buried oxide layer, wherein a positive fixed charge layer is induced at a surface of the buried oxide layer contacting the high resistivity substrate, and a doped negative charge layer is right next to the positive fixed charge layer. The present invention also provides a method of forming said silicon on insulator (SOI) device.
    Type: Grant
    Filed: October 26, 2020
    Date of Patent: January 30, 2024
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventor: Po-Yu Yang
  • Publication number: 20240021703
    Abstract: A method for forming a high electron mobility transistor includes the steps of providing a substrate, sequentially forming a buffer layer, a channel layer, a barrier layer, and a semiconductor gate layer on the substrate, forming a metal gate layer on the semiconductor gate layer, forming an insulating layer on the barrier layer, the semiconductor gate layer, and the metal gate layer and a passivation layer on the insulating layer, forming an opening through the passivation layer and the insulating layer to expose the metal gate layer, and forming a gate electrode on the passivation layer and filling the opening.
    Type: Application
    Filed: September 27, 2023
    Publication date: January 18, 2024
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventor: Po-Yu Yang
  • Patent number: 11855174
    Abstract: A high electron mobility transistor (HEMT) includes a substrate, a channel layer disposed on the substrate, a barrier layer disposed on the channel layer, a first passivation layer disposed on the barrier layer, a plurality of trenches through at least a portion of the first passivation layer, and a conductive plate structure disposed on the first passivation layer. The conductive plate structure includes a base portion over the trenches and a plurality of protruding portions extending from a lower surface of the base portion and into the trenches.
    Type: Grant
    Filed: March 16, 2021
    Date of Patent: December 26, 2023
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Po-Yu Yang, Hsun-Wen Wang
  • Publication number: 20230387250
    Abstract: An HEMT with a stair-like compound layer as a drain includes a first III-V compound layer. A second III-V compound layer is disposed on the first III-V compound layer. The composition of the first III-V compound layer and the second III-V compound layer are different from each other. A source electrode, a gate electrode and a drain electrode are disposed on the second III-V compound layer. The gate electrode is disposed between the source electrode and the drain electrode. A first P-type III-V compound layer is disposed between the drain electrode and the second III-V compound layer. The first P-type III-V compound layer is stair-like.
    Type: Application
    Filed: June 17, 2022
    Publication date: November 30, 2023
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventor: Po-Yu Yang
  • Patent number: 11832536
    Abstract: A resistive memory device includes a first stacked structure and a second stacked structure. The first stacked structure includes a first bottom electrode, a first top electrode disposed on the first bottom electrode, and a first variable resistance layer disposed between the first bottom electrode and the first top electrode in a vertical direction. The second stacked structure includes a second bottom electrode, a second top electrode disposed on the second bottom electrode, and a second variable resistance layer disposed between the second bottom electrode and the second top electrode in the vertical direction. A thickness of the first variable resistance layer is less than a thickness of the second variable resistance layer for increasing the number of switchable resistance states of the resistive memory device.
    Type: Grant
    Filed: June 7, 2022
    Date of Patent: November 28, 2023
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventor: Po-Yu Yang
  • Publication number: 20230369481
    Abstract: A method for forming a high electron mobility transistor includes the steps of forming an epitaxial stack on a substrate, forming a gate structure on the epitaxial stack, forming an insulating layer covering the epitaxial stack and the gate structure, forming a passivation layer on the insulating layer, forming an opening on the gate structure and through the passivation layer to expose the insulating layer, and removing a portion of the insulating layer through the opening to form an air gap between the gate structure and the passivation layer.
    Type: Application
    Filed: July 28, 2023
    Publication date: November 16, 2023
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Po-Yu Yang, Hsun-Wen Wang
  • Publication number: 20230317840
    Abstract: An HEMT includes a first III-V compound layer. A second III-V compound layer is disposed on the first III-V compound layer. The composition of the first III-V compound layer is different from that of the second III-V compound layer. A gate is disposed on the second III-V compound layer. The gate includes a first P-type III-V compound layer, an undoped III-V compound layer and an N-type III-V compound layer are deposited from bottom to top. The first P-type III-V compound layer, the undoped III-V compound layer, the N-type III-V compound layer and the first III-V compound layer are chemical compounds formed by the same group III element and the same group V element. A drain electrode is disposed at one side of the gate. A drain electrode is disposed at another side of the gate. A gate electrode is disposed directly on the gate.
    Type: Application
    Filed: June 7, 2023
    Publication date: October 5, 2023
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventor: Po-Yu Yang
  • Publication number: 20230268440
    Abstract: A semiconductor device includes a substrate, a first transistor disposed on the substrate, a second transistor in proximity to the first transistor on the substrate, at least one interlayer dielectric layer covering the first transistor and the second transistor, a first stress-inducing dummy metal pattern disposed on the at least one interlayer dielectric layer and directly above the first transistor, and a second stress-inducing dummy metal pattern disposed on the at least one interlayer dielectric layer and directly above the second transistor.
    Type: Application
    Filed: March 22, 2022
    Publication date: August 24, 2023
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Po-Yu Yang, Fang-Yun Liu, Chien-Tung Yue, Kuo-Liang Yeh, Mu-Kai Tsai, Jinn-Horng Lai, Cheng-Hsiung Chen
  • Publication number: 20230261071
    Abstract: A semiconductor structure includes a substrate, an insulating layer disposed on the substrate, an active layer disposed on the insulating layer, a plurality of isolation structures in the active layer to define a first device region and a non-device region of the active layer, a first semiconductor device formed on the first device region of the active layer, and a charge trap structure extending through the non-device region of the active layer. In a plane view, the charge trap structure and the non-device region form concentric closed ring surrounding the first device region.
    Type: Application
    Filed: April 10, 2023
    Publication date: August 17, 2023
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventor: Po-Yu Yang
  • Publication number: 20230253489
    Abstract: A semiconductor device includes a substrate, a semiconductor channel layer, a semiconductor barrier layer, and a gate electrode. The semiconductor channel layer is disposed on the substrate, and the semiconductor barrier layer is disposed on the semiconductor channel layer, where the surface of the semiconductor barrier layer includes at least one recess. The gate electrode is disposed on the semiconductor barrier layer and includes a body portion and at least one vertical extension portion overlapping the recess.
    Type: Application
    Filed: April 14, 2023
    Publication date: August 10, 2023
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventor: Po-Yu Yang
  • Patent number: 11721697
    Abstract: A manufacturing method of a semiconductor device is provided in an embodiment of the present invention. The manufacturing method includes the following steps. A transistor is formed on a substrate. The transistor includes a plurality of semiconductor sheets and two source/drain structures. The semiconductor sheets are stacked in a vertical direction and separated from one another. Each of the semiconductor sheets includes two first doped layers and a second doped layer disposed between the two first doped layers in the vertical direction. A conductivity type of the second doped layer is complementary to a conductivity type of each of the two first doped layers. The two source/drain structures are disposed at two opposite sides of each of the semiconductor sheets in a horizontal direction respectively, and the two source/drain structures are connected with the semiconductor sheets.
    Type: Grant
    Filed: May 3, 2022
    Date of Patent: August 8, 2023
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Po-Yu Yang, Yu-Wen Hung
  • Patent number: 11721751
    Abstract: An HEMT includes a first III-V compound layer. A second III-V compound layer is disposed on the first III-V compound layer. The composition of the first III-V compound layer is different from that of the second III-V compound layer. A gate is disposed on the second III-V compound layer. The gate includes a first P-type III-V compound layer, an undoped III-V compound layer and an N-type III-V compound layer are deposited from bottom to top. The first P-type III-V compound layer, the undoped III-V compound layer, the N-type III-V compound layer and the first III-V compound layer are chemical compounds formed by the same group III element and the same group V element. A drain electrode is disposed at one side of the gate. A drain electrode is disposed at another side of the gate. A gate electrode is disposed directly on the gate.
    Type: Grant
    Filed: January 20, 2021
    Date of Patent: August 8, 2023
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventor: Po-Yu Yang