Patents by Inventor Chuan-Fu Wang

Chuan-Fu Wang 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: 20240130254
    Abstract: A semiconductor device and a method for forming the same are provided. The semiconductor device includes a first semiconductor structure and a second semiconductor structure. The first semiconductor structure includes a first electrode, a second electrode on one side of the first electrode, and a resistive switching film between the first electrode and the second electrode. The first electrode, the resistive switching film and the second electrode are arranged along the first direction. The second semiconductor structure includes a first via and a first metal layer on the first via along a second direction and electrically connected to the first via. The first direction is perpendicular to the second direction. An upper surface of the first electrode, an upper surface of the second electrode, an upper surface of the resistive switching film and an upper surface of the first metal layer are coplanar.
    Type: Application
    Filed: December 5, 2022
    Publication date: April 18, 2024
    Inventors: Yen-Min TING, Chuan-Fu WANG, Yu-Huan YEH
  • Patent number: 11950521
    Abstract: A resistive random-access memory (RRAM) device includes a bottom electrode, a high work function layer, a resistive material layer, a top electrode and high work function spacers. The bottom electrode, the high work function layer, the resistive material layer and the top electrode are sequentially stacked on a substrate, wherein the resistive material layer includes a bottom part and a top part. The high work function spacers cover sidewalls of the bottom part, thereby constituting a RRAM cell. The present invention also provides a method of forming a RRAM device.
    Type: Grant
    Filed: May 11, 2022
    Date of Patent: April 2, 2024
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Shu-Hung Yu, Chun-Hung Cheng, Chuan-Fu Wang
  • Publication number: 20240107901
    Abstract: Provided is a resistive random access memory (RRAM). The resistive random access memory includes a plurality of unit structures disposed on a substrate. Each of the unit structures includes a first electrode, and a first metal oxide layer. The first electrode is disposed on the substrate. The first metal oxide layer is disposed on the first electrode. In addition, the resistive random access memory includes a second electrode. The second electrode is disposed on the plurality of unit structures and connected to the plurality of unit structures.
    Type: Application
    Filed: December 5, 2023
    Publication date: March 28, 2024
    Applicant: United Microelectronics Corp.
    Inventors: Kai Jiun Chang, Chun-Hung Cheng, Chuan-Fu Wang
  • Publication number: 20240107902
    Abstract: A resistive memory device includes a dielectric layer, a via connection structure, a stacked structure, and an insulating structure. The via connection structure is disposed in the dielectric layer. The stacked structure is disposed on the via connection structure and the dielectric layer. The insulating structure penetrates through the stacked structure in a vertical direction and divides the stacked structure into a first memory cell unit and a second memory cell unit. The first memory cell unit includes a first bottom electrode, and the second memory cell unit includes a second bottom electrode separated from the first bottom electrode by the insulating structure. The via connection structure is electrically connected with the first bottom electrode and the second bottom electrode.
    Type: Application
    Filed: October 20, 2022
    Publication date: March 28, 2024
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Wen-Jen Wang, Yu-Huan Yeh, Chuan-Fu Wang
  • Publication number: 20240074335
    Abstract: A RRAM device includes a bottom electrode, a resistive material layer, atop electrode, a hard mask and high work function sidewall parts. The bottom electrode, the resistive material layer, the top electrode and the hard mask are sequentially stacked on a substrate. The high work function sidewall parts cover sidewalls of the top electrode and sidewalls of the hard mask, thereby constituting a RRAM cell. A method of forming the RRAM device is also provided.
    Type: Application
    Filed: November 8, 2023
    Publication date: February 29, 2024
    Applicant: UNITED MICROELCTRONICS CORP.
    Inventors: Wen-Jen Wang, Chun-Hung Cheng, Chuan-Fu Wang
  • Publication number: 20240074338
    Abstract: A resistive random access memory (RRAM) structure includes a RRAM cell, spacers and a dielectric layer. The RRAM cell is disposed on a substrate. The spacers are disposed beside the RRAM cell, wherein widths of top surfaces of the spacers are larger than or equal to widths of bottom surfaces of the spacers. The dielectric layer blanketly covers the substrate and sandwiches the RRAM cell, wherein the spacers are located in the dielectric layer. A method for forming the resistive random access memory (RRAM) structure is also provided.
    Type: Application
    Filed: November 6, 2023
    Publication date: February 29, 2024
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Wen-Jen Wang, Chun-Hung Cheng, Chuan-Fu Wang
  • Publication number: 20240057487
    Abstract: An RRAM includes a bottom electrode, a resistive switching layer and a top electrode. The bottom electrode includes an inverted T-shaped profile. The resistive switching layer covers the bottom electrode. The top electrode covers the resistive switching layer. The inverted T-shaped profile includes a bottom element and a vertical element. The vertical element is disposed on the bottom element. The shape of the vertical element includes a rectangle or a trapezoid.
    Type: Application
    Filed: September 6, 2022
    Publication date: February 15, 2024
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Kai-Jiun Chang, Chun-Hung Cheng, Chuan-Fu Wang
  • Patent number: 11882773
    Abstract: Provided are a resistive random access memory (RRAM) and a manufacturing method thereof. The resistive random access memory includes multiple unit structures disposed on a substrate. Each of the unit structures includes a first electrode, a first metal oxide layer, and a spacer. The first electrode is disposed on the substrate. The first metal oxide layer is disposed on the first electrode. The spacer is disposed on sidewalls of the first electrode and the first metal oxide layer. In addition, the resistive random access memory includes a second metal oxide layer and a second electrode. The second metal oxide layer is disposed on the unit structures and is connected to the unit structures. The second electrode is disposed on the second metal oxide layer.
    Type: Grant
    Filed: August 6, 2021
    Date of Patent: January 23, 2024
    Assignee: United Microelectronics Corp.
    Inventors: Kai Jiun Chang, Chun-Hung Cheng, Chuan-Fu Wang
  • Patent number: 11871685
    Abstract: A RRAM device includes a bottom electrode, a resistive material layer, a high work function layer, a top electrode, a hard mask and high work function sidewall parts. The bottom electrode, the resistive material layer, the high work function layer, the top electrode and the hard mask are sequentially stacked on a substrate. The high work function sidewall parts cover sidewalls of the top electrode and sidewalls of the hard mask, thereby constituting a RRAM cell. A method of forming said RRAM device is also provided.
    Type: Grant
    Filed: July 19, 2021
    Date of Patent: January 9, 2024
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Wen-Jen Wang, Chun-Hung Cheng, Chuan-Fu Wang
  • Patent number: 11864473
    Abstract: Provided is a resistive random-access memory device, including a dielectric layer located on a substrate, a first electrode which is a column located on the dielectric layer, a second electrode covering a top surface and a sidewall of the first electrode, and a variable resistance layer sandwiched between the top surface of the first electrode and the second electrode and between the sidewall of the first electrode and the second electrode and located between the second electrode and the dielectric layer.
    Type: Grant
    Filed: August 17, 2021
    Date of Patent: January 2, 2024
    Assignee: United Microelectronics Corp.
    Inventors: Wen-Jen Wang, Chun-Hung Cheng, Chuan-Fu Wang
  • Publication number: 20230413698
    Abstract: A resistive random access memory structure includes a first inter-layer dielectric layer; a bottom electrode disposed in the first inter-layer dielectric layer; a capping layer disposed on the bottom electrode and on the first inter-layer dielectric layer; and a through hole disposed in the capping layer. The through hole partially exposes a top surface of the bottom electrode. A variable resistance layer is disposed within the through hole. A top electrode is disposed within the through hole and on the variable resistance layer. A second inter-layer dielectric layer covers the top electrode and the capping layer.
    Type: Application
    Filed: July 29, 2022
    Publication date: December 21, 2023
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Wen-Jen Wang, Chun-Hung Cheng, Chuan-Fu Wang
  • Publication number: 20230354724
    Abstract: Provided is a resistive memory structure and a manufacturing method thereof. The resistive memory structure includes a substrate, a dielectric layer, a resistive memory device, a hard mask layer, and a spacer. The dielectric layer is located on the substrate. The dielectric layer has an opening. The resistive memory device is located in the opening and has a protrusion outside the opening. The resistive memory device includes a first electrode, a variable resistance layer, and a second electrode. The variable resistance layer is located on the first electrode. The second electrode is located on the variable resistance layer. The hard mask layer covers a top surface of the variable resistance layer. The spacer covers a sidewall of the variable resistance layer in the protrusion.
    Type: Application
    Filed: May 23, 2022
    Publication date: November 2, 2023
    Applicant: United Microelectronics Corp.
    Inventors: Wen-Jen Wang, Chun-Hung Cheng, Chuan-Fu Wang
  • Publication number: 20230337556
    Abstract: A resistive memory device is provided. The resistive memory device includes a first electrode, a memory structure on the first electrode, and a second electrode on the memory structure. The memory structure includes a tubular element and a pillar element. The tubular element includes oxide. The pillar element includes oxide. The pillar element is surrounded by the tubular element. The tubular element and the pillar element include different materials.
    Type: Application
    Filed: May 18, 2022
    Publication date: October 19, 2023
    Inventors: Shu-Hung YU, Chun-Hung CHENG, Chuan-Fu WANG
  • Patent number: 11778830
    Abstract: A memory structure including a substrate, a first dielectric layer, a second dielectric layer, a charge storage layer, an oxide layer, and a conductive layer is provided. The first dielectric layer is disposed on the substrate. The second dielectric layer is disposed on the first dielectric layer. The charge storage layer is disposed between the first dielectric layer and the second dielectric layer. The oxide layer is located at two ends of the charge storage layer and is disposed between the first dielectric layer and the second dielectric layer. The conductive layer is disposed on the second dielectric layer.
    Type: Grant
    Filed: November 3, 2022
    Date of Patent: October 3, 2023
    Assignee: United Microelectronics Corp.
    Inventors: Chia-Hung Chen, Yu-Huang Yeh, Chuan-Fu Wang
  • Patent number: 11770987
    Abstract: A ReRAM device includes a dielectric layer, a bottom electrode, a data storage layer, a metal covering layer, and a top electrode. The dielectric layer has a recess. At least a portion of the bottom electrode is exposed through the recess. The data storage layer is disposed on a sidewall and a bottom surface of the recess, electrically contacts with the bottom electrode, and has a top portion lower than an opening of the recess. The metal covering layer blanket covers the data storage layer, has an extension portion covering the top portion, and connects to the sidewall of the recess. The top electrode is disposed in the recess, and is electrically contact with the metal covering layer.
    Type: Grant
    Filed: September 30, 2021
    Date of Patent: September 26, 2023
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Shu-Hung Yu, Chun-Hung Cheng, Chuan-Fu Wang
  • Patent number: 11765915
    Abstract: A semiconductor device includes a substrate having a memory region and a logic region. A first dielectric layer is disposed on the substrate. A first conductive structure and a second conductive structure are respectively formed in the first dielectric layer on the memory region and the logic region. A memory cell is formed on the first dielectric layer and directly contacts a top surface of the first conductive structure. A first cap layer continuously covers a top surface and a sidewall of the memory cell and directly contacts a top surface of the second conductive structure. A second dielectric layer is formed on the first cap layer. A third conductive structure penetrates through the second dielectric layer and the first cap layer to contact the memory cell.
    Type: Grant
    Filed: July 21, 2022
    Date of Patent: September 19, 2023
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Wen-Jen Wang, Chun-Hung Cheng, Chuan-Fu Wang
  • Patent number: 11632888
    Abstract: An RRAM structure includes a substrate. The substrate is divided into a memory cell region and a logic device region. A metal plug is disposed within the memory cell region. An RRAM is disposed on and contacts the metal plug. The RRAM includes a top electrode, a variable resistive layer, and a bottom electrode. The variable resistive layer is disposed between the top electrode and the bottom electrode. The variable resistive layer includes a first bottom surface. The bottom electrode includes a first top surface. The first bottom surface and the first top surface are coplanar. The first bottom surface only overlaps and contacts part of the first top surface.
    Type: Grant
    Filed: January 9, 2022
    Date of Patent: April 18, 2023
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Wen-Jen Wang, Chun-Hung Cheng, Chuan-Fu Wang
  • Patent number: 11619250
    Abstract: A connecting apparatus includes a main body having a first half member and a second half member; the second ends of the two half members configured to open or close relatively to each other; an accommodating cavity formed between the first and second half members; a driving member and an actuating member installed inside the accommodating cavity; the driving member capable of driving the actuating member to move toward the second ends of the two half members to an opened position, thereby expanding the second ends of the two half members outward. The connecting apparatus is installed inside an elongated member, and latch portions on the second ends of the two half members are able to latch onto another elongated member to achieve a connection between elongated members.
    Type: Grant
    Filed: April 23, 2021
    Date of Patent: April 4, 2023
    Assignee: MING YANG ALUMINUM CO., LTD.
    Inventor: Chuan-Fu Wang
  • Publication number: 20230057572
    Abstract: A ReRAM device includes a dielectric layer, a bottom electrode, a data storage layer, a metal covering layer, and a top electrode. The dielectric layer has a recess. At least a portion of the bottom electrode is exposed through the recess. The data storage layer is disposed on a sidewall and a bottom surface of the recess, electrically contacts with the bottom electrode, and has a top portion lower than an opening of the recess. The metal covering layer blanket covers the data storage layer, has an extension portion covering the top portion, and connects to the sidewall of the recess. The top electrode is disposed in the recess, and is electrically contact with the metal covering layer.
    Type: Application
    Filed: September 30, 2021
    Publication date: February 23, 2023
    Inventors: Shu-Hung YU, Chun-Hung CHENG, Chuan-Fu WANG
  • Publication number: 20230046058
    Abstract: A memory structure including a substrate, a first dielectric layer, a second dielectric layer, a charge storage layer, an oxide layer, and a conductive layer is provided. The first dielectric layer is disposed on the substrate. The second dielectric layer is disposed on the first dielectric layer. The charge storage layer is disposed between the first dielectric layer and the second dielectric layer. The oxide layer is located at two ends of the charge storage layer and is disposed between the first dielectric layer and the second dielectric layer. The conductive layer is disposed on the second dielectric layer.
    Type: Application
    Filed: November 3, 2022
    Publication date: February 16, 2023
    Applicant: United Microelectronics Corp.
    Inventors: Chia-Hung Chen, Yu-Huang Yeh, Chuan-Fu Wang