Patents by Inventor Yi Chiu

Yi Chiu 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).

  • Patent number: 12293941
    Abstract: A gallium nitride (GaN) device with field plate structure, including a substrate, a gate on the substrate and a passivation layer covering on the gate, a source and a drain on the substrate and the passivation layer, a stop layer on the source, the drain and the passivation layer, and dual-damascene interconnects connecting respectively with the source and the drain, wherein the dual-damascene interconnect is provided with a via portion under the stop layer and a trench portion on the stop layer, and the via portion is connected with the source or the drain, and the trench portion of one of the dual-damascene interconnects extends horizontally toward the drain and overlaps the gate below in vertical direction, thereby functioning as a field plate structure for the GaN device.
    Type: Grant
    Filed: June 9, 2022
    Date of Patent: May 6, 2025
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Da-Jun Lin, Fu-Yu Tsai, Bin-Siang Tsai, Chung-Yi Chiu
  • Patent number: 12274087
    Abstract: A field effect transistor includes a substrate having a transistor forming region thereon; an insulating layer on the substrate; a first graphene layer on the insulating layer within the transistor forming region; an etch stop layer on the first graphene layer within the transistor forming region; a first inter-layer dielectric layer on the etch stop layer; a gate trench recessed into the first inter-layer dielectric layer and the etch stop layer within the transistor forming region; a second graphene layer on interior surface of the gate trench; a gate dielectric layer on the second graphene layer and on the first inter-layer dielectric layer; and a gate electrode on the gate dielectric layer within the gate trench.
    Type: Grant
    Filed: November 21, 2022
    Date of Patent: April 8, 2025
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Kuo-Chih Lai, Shih-Min Chou, Nien-Ting Ho, Wei-Ming Hsiao, Li-Han Chen, Szu-Yao Yu, Chung-Yi Chiu
  • Publication number: 20250105145
    Abstract: A device comprising a die substrate; a plurality of interconnects located over the die substrate, wherein the plurality of interconnects comprise a first plurality of interconnects comprising a first plurality of via interconnects, wherein the first plurality of interconnects are configured as a first inductor; and a second plurality of interconnects comprising a second plurality of via interconnects, wherein the second plurality of interconnects are configured as a second inductor; wherein the first inductor and the second inductor are intertwined, at least one magnetic layer that surrounds at least part of the first plurality of via interconnects and at least part of the second plurality of via interconnects; and at least one dielectric layer located over the die substrate.
    Type: Application
    Filed: September 26, 2023
    Publication date: March 27, 2025
    Inventors: Kai LIU, Jui-Yi CHIU, Jonghae KIM
  • Publication number: 20250098272
    Abstract: A method for fabricating a semiconductor device includes the steps of forming a gate structure on a substrate, forming an interlayer dielectric (ILD) layer on the gate structure, forming a contact hole in the ILD layer adjacent to the gate structure, performing a plasma doping process to form a doped layer in the ILD layer and a source/drain region adjacent to the gate structure, forming a conductive layer in the contact hole, planarizing the conductive layer to form a contact plug, removing the doped layer to form an air gap adjacent to the contact plug, and then forming a stop layer on the ILD layer and the contact plug.
    Type: Application
    Filed: December 4, 2024
    Publication date: March 20, 2025
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Wen-Wen Zhang, Kun-Chen Ho, Chun-Lung Chen, Chung-Yi Chiu, Ming-Chou Lu
  • Publication number: 20250098273
    Abstract: A semiconductor device includes a gate structure on a substrate, a source/drain region adjacent to the gate structure, an interlayer dielectric (ILD) layer around the gate structure, a contact plug in the ILD layer and adjacent to the gate structure, an air gap around the contact plug, a barrier layer on and sealing the air gap, a metal layer on the barrier layer, a stop layer adjacent to the barrier layer and on the ILD layer, and an inter-metal dielectric (IMD) layer on the ILD layer. Preferably, bottom surfaces of the barrier layer and the stop layer are coplanar and top surfaces of the IMD layer and the barrier layer are coplanar.
    Type: Application
    Filed: December 4, 2024
    Publication date: March 20, 2025
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Wen-Wen Zhang, Kun-Chen Ho, Chun-Lung Chen, Chung-Yi Chiu, Ming-Chou Lu
  • Publication number: 20250098271
    Abstract: A method for fabricating a semiconductor device includes the steps of forming a gate structure on a substrate, forming an interlayer dielectric (ILD) layer on the gate structure, forming a contact hole in the ILD layer adjacent to the gate structure, performing a plasma doping process to form a doped layer in the ILD layer and a source/drain region adjacent to the gate structure, forming a conductive layer in the contact hole, planarizing the conductive layer to form a contact plug, removing the doped layer to form an air gap adjacent to the contact plug, and then forming a stop layer on the ILD layer and the contact plug.
    Type: Application
    Filed: December 4, 2024
    Publication date: March 20, 2025
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Wen-Wen Zhang, Kun-Chen Ho, Chun-Lung Chen, Chung-Yi Chiu, Ming-Chou Lu
  • Patent number: 12245521
    Abstract: A magnetic memory including a substrate, a spin-orbit torque (SOT) layer, a magnetic tunnel junction (MTJ) stack, a first protection layer, and a second protection layer is provided. The SOT layer is located over the substrate. The MTJ stack is located on the SOT layer. The first protection layer and the second protection layer are located on the sidewall of the MTJ stack. The first protection layer is located between the second protection layer and the MTJ stack. There is a notch between the second protection layer and the SOT layer.
    Type: Grant
    Filed: August 10, 2022
    Date of Patent: March 4, 2025
    Assignee: United Microelectronics Corp.
    Inventors: Chih-Wei Kuo, Chung Yi Chiu, Yi-Wei Tseng, Hsuan-Hsu Chen, Chun-Lung Chen
  • Publication number: 20250072075
    Abstract: A compound semiconductor device includes a substrate, a channel layer on the substrate, a barrier layer on the channel layer, a passivation layer on the barrier layer, and a contact area recessed into the passivation layer and the barrier layer. The channel layer is partially exposed at a bottom of the contact area. Abi-layer silicide film is disposed on the contact area.
    Type: Application
    Filed: November 13, 2024
    Publication date: February 27, 2025
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Da-Jun Lin, Fu-Yu Tsai, Bin-Siang Tsai, Chung-Yi Chiu
  • Publication number: 20250054883
    Abstract: An interposer includes a substrate having an inductor forming region thereon, a plurality of trenches within the inductor forming region in the substrate, a buffer layer lining interior surfaces of the plurality of trenches and forming air gaps within the plurality of trenches, and an inductor coil pattern embedded in the buffer layer within the inductor forming region.
    Type: Application
    Filed: September 11, 2023
    Publication date: February 13, 2025
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Da-Jun Lin, Bin-Siang Tsai, Fu-Yu Tsai, Chung-Yi Chiu
  • Publication number: 20250037923
    Abstract: A package comprising an integrated device and a substrate coupled to the integrated device through a plurality of solder interconnects. The substrate comprises at least one magnetic layer, at least one dielectric layer; and a plurality of interconnects. The plurality of interconnects comprise a first set of interconnects that are configured to operate as a first inductor and a second set of interconnects that are configured to operate as a second inductor. The second inductor and the first inductor are configured to operate as inductively coupled inductors.
    Type: Application
    Filed: July 27, 2023
    Publication date: January 30, 2025
    Inventors: Kai LIU, Jui-Yi CHIU, Jonghae KIM, Nosun PARK, Je-Hsiung LAN
  • Publication number: 20250038103
    Abstract: A structure of an MIM capacitor and a heat sink include a dielectric layer. The dielectric layer includes a capacitor region and a heat dispensing region. A bottom electrode is embedded in the dielectric layer. A first heat conductive layer covers the dielectric layer. A capacitor dielectric layer is disposed on the first heat conductive layer within the capacitor region. A second heat conductive layer covers and contacts the capacitor dielectric layer and the first heat conductive layer. A top electrode is disposed within the capacitor region and the heat dispensing region and covers the second heat conductive layer. A first heat sink is disposed within the heat dispensing region and contacts the top electrode. A second heat sink is disposed within the heat dispensing region and contacts the first heat conductive layer and the second heat conductive layer.
    Type: Application
    Filed: August 14, 2023
    Publication date: January 30, 2025
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Da-Jun Lin, Bin-Siang Tsai, Fu-Yu Tsai, Chung-Yi Chiu
  • Publication number: 20250040158
    Abstract: A metal-insulator-metal capacitor includes a bottom electrode, a dielectric layer, a superlattice layer, a silicon dioxide layer and a top electrode stacked from bottom to top. The superlattice layer contacts the dielectric layer. A silicon dioxide layer has a negative voltage coefficient of capacitance.
    Type: Application
    Filed: August 15, 2023
    Publication date: January 30, 2025
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Da-Jun Lin, Bin-Siang Tsai, Fu-Yu Tsai, Chung-Yi Chiu
  • Patent number: 12213389
    Abstract: A memory device includes a substrate, a memory unit disposed on the substrate, a first spacer layer, and a second spacer layer. The memory unit includes a first electrode, a second electrode disposed above the first electrode, and a memory material layer disposed between the first electrode and the second electrode. The first spacer layer is disposed on a sidewall of the memory unit and includes a first portion disposed on a sidewall of the first electrode, a second portion disposed on a sidewall of the second electrode, and a bottom portion. A thickness of the second portion is greater than that of the first portion. The second spacer layer is disposed on the first spacer layer. A material composition of the second spacer layer is different from that of the first spacer layer. The bottom portion is disposed between the substrate and the second spacer layer.
    Type: Grant
    Filed: August 28, 2023
    Date of Patent: January 28, 2025
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Chih-Wei Kuo, Chung-Yi Chiu
  • Patent number: 12211699
    Abstract: A method of removing a step height on a gate structure includes providing a substrate. A gate structure is disposed on the substrate. A dielectric layer covers the gate structure and the substrate. Then, a composite material layer is formed to cover the dielectric layer. Later, part of the composite material layer is removed to form a step height disposed directly on the gate structure. Subsequently, a wet etching is performed to remove the step height. After the step height is removed, the dielectric layer is etched to form a first contact hole to expose the gate structure.
    Type: Grant
    Filed: July 4, 2022
    Date of Patent: January 28, 2025
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Yeh-Sheng Lin, Chang-Mao Wang, Chun-Chi Yu, Chung-Yi Chiu
  • Patent number: 12206155
    Abstract: In an aspect, an apparatus is disclosed that includes a surface-mounted integrated circuit package housing an active oscillator circuit; an integrated ceramic resonator formed from a ceramic substrate having an upper planar surface receiving the surface-mounted integrated circuit package, the integrated ceramic resonator including a plurality of conductive walls forming a conductive periphery of a ceramic cavity in the ceramic substrate, a conductive rod extending vertically into the ceramic cavity, wherein the conductive rod is isolated from contact with the conductive periphery of the ceramic cavity, a first conductive material extending vertically through the upper planar surface of the ceramic substrate for connecting the conductive periphery of the ceramic cavity to the surface-mounted integrated circuit package housing the active oscillator circuit; and a second conductive material extending through the upper planar surface of the ceramic substrate for connecting the conductive rod to the surface-mounte
    Type: Grant
    Filed: March 24, 2023
    Date of Patent: January 21, 2025
    Assignee: QUALCOMM INCORPORATED
    Inventors: Kai Liu, Jonghae Kim, Jui-Yi Chiu, Nosun Park, Je-Hsiung Lan
  • Patent number: 12204692
    Abstract: A touch module includes a base plate, a first magnet, a second magnet, a touch pad, a first magnetic board and a second magnetic board. The first magnet and the second magnet are installed on the base plate and separated from each other. The touch pad is located over the base plate to cover the first magnet and the second magnet. The first magnetic board and the second magnetic board are separated from each other, located under the touch pad and coupled with the touch pad. The first magnetic board is aligned with the first magnet. The second magnetic board is aligned with the second magnet. The driving circuit is electrically coupled with the first magnetic board and the second magnetic board. The first magnetic board induces a magnetic field of the first magnet. The second magnetic board induces a magnetic field of the second magnet.
    Type: Grant
    Filed: September 25, 2023
    Date of Patent: January 21, 2025
    Assignee: Primax Electronics Ltd.
    Inventors: Tse-Ping Kuan, Wei-Chiang Huang, Hung-Wei Kuo, Ying-Yen Huang, Sian-Yi Chiu
  • Patent number: 12206007
    Abstract: A method for fabricating a semiconductor device includes the steps of forming a gate structure on a substrate, forming an interlayer dielectric (ILD) layer on the gate structure, forming a contact hole in the ILD layer adjacent to the gate structure, performing a plasma doping process to form a doped layer in the ILD layer and a source/drain region adjacent to the gate structure, forming a conductive layer in the contact hole, planarizing the conductive layer to form a contact plug, removing the doped layer to form an air gap adjacent to the contact plug, and then forming a stop layer on the ILD layer and the contact plug.
    Type: Grant
    Filed: July 19, 2022
    Date of Patent: January 21, 2025
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Wen-Wen Zhang, Kun-Chen Ho, Chun-Lung Chen, Chung-Yi Chiu, Ming-Chou Lu
  • Publication number: 20250022858
    Abstract: A device comprising (i) a first device portion comprising: a die substrate; at least one first dielectric layer; a first plurality of interconnects; a first encapsulation layer; and a first plurality of via interconnects located at least in the first encapsulation layer; (ii) a second device portion comprising: at least one second dielectric layer; a second plurality of interconnects; a second encapsulation layer; and a second plurality of via interconnects located at least in the second encapsulation layer; and (iii) a first plurality of solder interconnects coupled to the first device portion and the second device portion, wherein the first plurality of interconnects, the first plurality of via interconnects, the first plurality of solder interconnects, the second plurality of interconnects and the second plurality of via interconnects are configured to operate as an inductor.
    Type: Application
    Filed: July 14, 2023
    Publication date: January 16, 2025
    Inventors: Kai LIU, Jui-Yi CHIU, Jonghae KIM, Je-Hsiung LAN, Nosun PARK
  • Publication number: 20250009795
    Abstract: A truncated EGFR (tEGFR) cell surface molecule and its uses is provided herein. The tEGFR cell surface molecule includes an EGFR domain IV and does not include an EGFR domain III and may be used, inter alia, as an in vivo tracking marker for genetically modified human T cells. Furthermore, the tEGFR cell surface molecule has cellular depletion potential through mediated through specific anti-domain IV EGFR antibodies. Thus, the tEGFR cell surface molecules provided herein may, inter alia, be used as a non-immunogenic selection tool, tracking marker, a depletion tool or a suicide gene for genetically modified cells having therapeutic potential.
    Type: Application
    Filed: January 14, 2022
    Publication date: January 9, 2025
    Inventors: Alfur HUNG, Miso PARK, Yi-Chiu KUO, John C. WILLIAMS, Sangeeta Bardhan COOK
  • Publication number: 20250014941
    Abstract: An isolation structure of a semiconductor device includes a substrate, a first isolation structure and a second isolation structure. The substrate has a first region and a second region, and there is a boundary between the first region and the second region. The first isolation structure is disposed in the first region of the substrate, and the first isolation structure includes a dielectric liner and a first insulating layer. The second isolation structure is disposed in the second region of the substrate, and the second isolation structure includes a second insulating layer. The first isolation structure and the second isolation structure are respectively located on both sides of the boundary.
    Type: Application
    Filed: July 31, 2023
    Publication date: January 9, 2025
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Chih-Yuan Wen, Lung-En Kuo, Chung-Yi Chiu