Patents by Inventor CHIA-CHING HSU

CHIA-CHING HSU 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: 11956966
    Abstract: A silicon-oxide-nitride-oxide-silicon (SONOS) memory cell includes a memory gate, a dielectric layer, two charge trapping layers and two selective gates. The memory gate is disposed on a substrate. The two charge trapping layers are at two ends of the dielectric layer, and the charge trapping layers and the dielectric layer are sandwiched by the substrate and the memory gate. The two selective gates are disposed at two opposite sides of the memory gate, thereby constituting a two bit memory cell. The present invention also provides a method of forming said silicon-oxide-nitride-oxide-silicon (SONOS) memory cell.
    Type: Grant
    Filed: March 28, 2022
    Date of Patent: April 9, 2024
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventor: Chia-Ching Hsu
  • Publication number: 20240057488
    Abstract: A RRAM (resistive random-access memory) device includes a bottom electrode line, a top electrode island and a resistive material. The bottom electrode line is directly on a first metal structure. The top electrode island is disposed beside the bottom electrode line. The resistive material is sandwiched by a sidewall of the bottom electrode line and a sidewall of the top electrode island. The present invention also provides a method of forming the RRAM device.
    Type: Application
    Filed: October 19, 2023
    Publication date: February 15, 2024
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Chia-Ching Hsu, Wang Xiang, Shen-De Wang
  • Publication number: 20230161131
    Abstract: An optical member driving mechanism is provided. The optical member driving mechanism includes a first movable portion, a fixed portion, a first driving assembly, and a plurality of second guiding members. The first movable portion is configured to connect an optical member. The optical member is used for adjusting a direction of a light from an incident direction to an outgoing direction. The first movable portion can move relative to the fixed portion. The first driving assembly is configured to drive the first movable portion to move relative to the fixed portion. The second guiding members include a first ball, a second ball, and a third ball. The first ball, the second ball, and the third ball are disposed in a plane that is perpendicular to the incident direction.
    Type: Application
    Filed: January 20, 2023
    Publication date: May 25, 2023
    Inventors: Chih-Wei WENG, Chao-Chang HU, Yueh-Lin LEE, Chen-Hsien FAN, Chien-Yu KAO, Chia-Ching HSU, Sung-Mao TSAI, Sin-Jhong SONG
  • Patent number: 11621271
    Abstract: A silicon-oxide-nitride-oxide-silicon (SONOS) memory cell includes a memory gate, a dielectric layer, two charge trapping layers and two selective gates. The memory gate is disposed on a substrate. The two charge trapping layers are at two ends of the dielectric layer, and the charge trapping layers and the dielectric layer are sandwiched by the substrate and the memory gate. The two selective gates are disposed at two opposite sides of the memory gate, thereby constituting a two bit memory cell. The present invention also provides a method of forming said silicon-oxide-nitride-oxide-silicon (SONOS) memory cell.
    Type: Grant
    Filed: February 16, 2021
    Date of Patent: April 4, 2023
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventor: Chia-Ching Hsu
  • Patent number: 11586002
    Abstract: An optical member driving mechanism is provided. The optical member driving mechanism includes a movable portion and a fixed portion. The movable portion includes a holder for holding an optical member with an optical axis. The movable portion is movable relative to the fixed portion. The fixed portion has a housing and a base. The housing is disposed on the base, and includes a top surface and a side surface. The top surface extends in a direction that is parallel to the optical axis. The side surface extends from an edge of the top surface in a direction that is not parallel to the optical axis. The side surface has a rectangular opening.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: February 21, 2023
    Assignee: TDK TAIWAN CORP.
    Inventors: Chih-Wei Weng, Chao-Chang Hu, Yueh-Lin Lee, Chen-Hsien Fan, Chien-Yu Kao, Chia-Ching Hsu, Sung-Mao Tsai, Sin-Jhong Song
  • Publication number: 20220310910
    Abstract: A semiconductor memory device includes a substrate, a first dielectric layer on the substrate, a bottom electrode on the first dielectric layer, a second dielectric layer on the first dielectric layer, and a top electrode in the second dielectric layer. The top electrode has a lower portion around the bottom electrode and a tapered upper portion. A third dielectric layer is disposed above the bottom electrode and around the tapered upper portion of the top electrode. A resistive-switching layer is disposed between a sidewall of the bottom electrode and a sidewall of the lower portion of the top electrode and between the third dielectric layer and a sidewall of the tapered upper portion of the top electrode. An air gap is disposed in the third dielectric layer.
    Type: Application
    Filed: April 14, 2021
    Publication date: September 29, 2022
    Inventor: Chia-Ching Hsu
  • Patent number: 11444095
    Abstract: A semiconductor device with integrated memory devices and metal-oxide-semiconductor (MOS) devices, including a substrate with a first area and a second area, multiple double-diffused metal-oxide-semiconductor (DMOS) devices on the first area, wherein the double-diffused metal-oxide-semiconductor (DMOS) device includes a field oxide on the substrate, a first gate dielectric layer adjacent to the field oxide, and a first polysilicon gate on the field oxide and the first gate dielectric layer, and multiple memory units on the second area, wherein the memory unit includes an oxide-nitride-oxide (ONO) tri-layer and a second polysilicon gate on the oxide-nitride-oxide (ONO) tri-layer, wherein a top surface of the second polysilicon gate of the memory unit in the second area and a top surface of the first polysilicon gate of the double-diffused metal-oxide-semiconductor (DMOS) in the first area are on the same level.
    Type: Grant
    Filed: April 13, 2021
    Date of Patent: September 13, 2022
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Wang Xiang, Chia-Ching Hsu, Shen-De Wang, Weichang Liu
  • Publication number: 20220262808
    Abstract: A silicon-oxide-nitride-oxide-silicon (SONOS) memory cell includes a memory gate, a dielectric layer, two charge trapping layers and two selective gates. The memory gate is disposed on a substrate. The two charge trapping layers are at two ends of the dielectric layer, and the charge trapping layers and the dielectric layer are sandwiched by the substrate and the memory gate. The two selective gates are disposed at two opposite sides of the memory gate, thereby constituting a two bit memory cell. The present invention also provides a method of forming said silicon-oxide-nitride-oxide-silicon (SONOS) memory cell.
    Type: Application
    Filed: March 28, 2022
    Publication date: August 18, 2022
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventor: Chia-Ching Hsu
  • Publication number: 20220262806
    Abstract: A silicon-oxide-nitride-oxide-silicon (SONOS) memory cell includes a memory gate, a dielectric layer, two charge trapping layers and two selective gates. The memory gate is disposed on a substrate. The two charge trapping layers are at two ends of the dielectric layer, and the charge trapping layers and the dielectric layer are sandwiched by the substrate and the memory gate. The two selective gates are disposed at two opposite sides of the memory gate, thereby constituting a two bit memory cell. The present invention also provides a method of forming said silicon-oxide-nitride-oxide-silicon (SONOS) memory cell.
    Type: Application
    Filed: February 16, 2021
    Publication date: August 18, 2022
    Inventor: Chia-Ching Hsu
  • Publication number: 20220246845
    Abstract: A RRAM (resistive random-access memory) device includes a bottom electrode line, a top electrode island and a resistive material. The bottom electrode line is directly on a first metal structure. The top electrode island is disposed beside the bottom electrode line. The resistive material is sandwiched by a sidewall of the bottom electrode line and a sidewall of the top electrode island. The present invention also provides a method of forming said RRAM device.
    Type: Application
    Filed: March 9, 2021
    Publication date: August 4, 2022
    Inventors: Chia-Ching Hsu, Wang Xiang, Shen-De Wang
  • Patent number: 11387337
    Abstract: A memory device includes a main cell on a substrate, a first reference cell adjacent to one side of the main cell, and a second reference cell adjacent to another side of the main cell. Preferably, the main cell includes a first gate electrode on the substrate, a second gate electrode on one side of the first gate electrode and covering a top surface of the first gate electrode, a first charge trapping layer between the first gate electrode and the second gate electrode and including a first oxide-nitride-oxide (ONO) layer, a third gate electrode on another side of the first gate electrode and covering the top surface of the first gate electrode, and a second charge trapping layer between the first gate electrode and the third gate electrode and including a second ONO layer.
    Type: Grant
    Filed: December 24, 2020
    Date of Patent: July 12, 2022
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Chun-Sung Huang, Shen-De Wang, Chia-Ching Hsu, Wang Xiang
  • Patent number: 11127752
    Abstract: A semiconductor device includes a substrate, having cell region and high-voltage region. A memory cell is on the substrate within the cell region. The memory cell includes a memory gate structure and a selection gate structure on the substrate. A first spacer is sandwiched between or respectively on sidewalls of the memory cell structure and the selection gate structure. First high-voltage transistor is on the substrate within the high-voltage region. A first composite gate structure of the first high-voltage transistor includes a first gate structure on the substrate, an insulating layer with a predetermined thickness on the substrate in a -like structure or an L-like structure at cross-section, and a second gate structure on the insulating layer along the -like structure or the L-like structure. The selection gate structure and the second gate structure are originated from a same preliminary conductive layer.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: September 21, 2021
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Chia-Ching Hsu, Wang Xiang, Shen-De Wang, Chun-Sung Huang
  • Publication number: 20210265376
    Abstract: A semiconductor device includes a substrate, having cell region and high-voltage region. A memory cell is on the substrate within the cell region. The memory cell includes a memory gate structure and a selection gate structure on the substrate. A first spacer is sandwiched between or respectively on sidewalls of the memory cell structure and the selection gate structure. First high-voltage transistor is on the substrate within the high-voltage region. A first composite gate structure of the first high-voltage transistor includes a first gate structure on the substrate, an insulating layer with a predetermined thickness on the substrate in a -like structure or an L-like structure at cross-section, and a second gate structure on the insulating layer along the -like structure or the L-like structure. The selection gate structure and the second gate structure are originated from a same preliminary conductive layer.
    Type: Application
    Filed: February 21, 2020
    Publication date: August 26, 2021
    Applicant: United Microelectronics Corp.
    Inventors: CHIA-CHING HSU, Wang Xiang, Shen-De Wang, Chun-Sung Huang
  • Publication number: 20210233924
    Abstract: A semiconductor device with integrated memory devices and metal-oxide-semiconductor (MOS) devices, including a substrate with a first area and a second area, multiple double-diffused metal-oxide-semiconductor (DMOS) devices on the first area, wherein the double-diffused metal-oxide-semiconductor (DMOS) device includes a field oxide on the substrate, a first gate dielectric layer adjacent to the field oxide, and a first polysilicon gate on the field oxide and the first gate dielectric layer, and multiple memory units on the second area, wherein the memory unit includes an oxide-nitride-oxide (ONO) tri-layer and a second polysilicon gate on the oxide-nitride-oxide (ONO) tri-layer, wherein a top surface of the second polysilicon gate of the memory unit in the second area and a top surface of the first polysilicon gate of the double-diffused metal-oxide-semiconductor (DMOS) in the first area are on the same level.
    Type: Application
    Filed: April 13, 2021
    Publication date: July 29, 2021
    Inventors: Wang Xiang, Chia-Ching Hsu, Shen-De Wang, Weichang Liu
  • Patent number: 11011535
    Abstract: A method of integrating memory and metal-oxide-semiconductor (MOS) processes is provided, including steps of forming an oxide layer and a nitride layer on a substrate, forming a field oxide in a first area by an oxidation process with the nitride layer as a mask, wherein the oxidation process simultaneously forms a top oxide layer on the nitride layer, removing the top oxide layer, the nitride layer and the oxide layer in the first area, forming a polysilicon layer on the substrate, and patterning the polysilicon layer into MOS units in the first area and memory units in a second area.
    Type: Grant
    Filed: December 22, 2019
    Date of Patent: May 18, 2021
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Wang Xiang, Chia-Ching Hsu, Shen-De Wang, Weichang Liu
  • Publication number: 20210119004
    Abstract: A memory device includes a main cell on a substrate, a first reference cell adjacent to one side of the main cell, and a second reference cell adjacent to another side of the main cell. Preferably, the main cell includes a first gate electrode on the substrate, a second gate electrode on one side of the first gate electrode and covering a top surface of the first gate electrode, a first charge trapping layer between the first gate electrode and the second gate electrode and including a first oxide-nitride-oxide (ONO) layer, a third gate electrode on another side of the first gate electrode and covering the top surface of the first gate electrode, and a second charge trapping layer between the first gate electrode and the third gate electrode and including a second ONO layer.
    Type: Application
    Filed: December 24, 2020
    Publication date: April 22, 2021
    Inventors: Chun-Sung Huang, Shen-De Wang, Chia-Ching Hsu, Wang Xiang
  • Patent number: 10903326
    Abstract: A method for fabricating semiconductor device includes the steps of: forming a first gate structure on a substrate; forming a second gate structure on the substrate and on one side of the first gate structure; forming a third gate structure on the substrate and on another side of the first gate structure; forming source/drain regions adjacent to the second gate structure and the third gate structure; and forming contact plugs to contact the first gate structure, the second gate structure, the third gate structure, and the source/drain regions.
    Type: Grant
    Filed: January 13, 2019
    Date of Patent: January 26, 2021
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Chun-Sung Huang, Shen-De Wang, Chia-Ching Hsu, Wang Xiang
  • Publication number: 20200227531
    Abstract: A method for fabricating semiconductor device includes the steps of: forming a first gate structure on a substrate; forming a second gate structure on the substrate and on one side of the first gate structure; forming a third gate structure on the substrate and on another side of the first gate structure; forming source/drain regions adjacent to the second gate structure and the third gate structure; and forming contact plugs to contact the first gate structure, the second gate structure, the third gate structure, and the source/drain regions.
    Type: Application
    Filed: January 13, 2019
    Publication date: July 16, 2020
    Inventors: Chun-Sung Huang, Shen-De Wang, Chia-Ching Hsu, Wang Xiang
  • Publication number: 20200225442
    Abstract: An optical member driving mechanism is provided. The optical member driving mechanism includes a movable portion and a fixed portion. The movable portion includes a holder for holding an optical member with an optical axis. The movable portion is movable relative to the fixed portion. The fixed portion has a housing and a base. The housing is disposed on the base, and includes a top surface and a side surface. The top surface extends in a direction that is parallel to the optical axis. The side surface extends from an edge of the top surface in a direction that is not parallel to the optical axis. The side surface has a rectangular opening.
    Type: Application
    Filed: December 27, 2019
    Publication date: July 16, 2020
    Inventors: Chih-Wei WENG, Chao-Chang HU, Yueh-Lin LEE, Chen-Hsien FAN, Chien-Yu KAO, Chia-Ching HSU, Sung-Mao TSAI, Sin-Jhong SONG
  • Patent number: 10692875
    Abstract: A memory structure including a substrate, at least one stacked gate structure, a first spacer conductive layer, and a first contact is provided. The stacked gate structure is located on the substrate and includes a control gate. The control gate extends in a first direction. The first spacer conductive layer is located on one sidewall of the control gate and is electrically insulated from the control gate. The first spacer conductive layer includes a first merged spacer portion and a first non-merged spacer portion. A line width of the first merged spacer portion is greater than a line width of the first non-merged spacer portion. The first contact is connected to the first merged spacer portion. The memory structure can have a larger process window of contact.
    Type: Grant
    Filed: November 1, 2018
    Date of Patent: June 23, 2020
    Assignee: United Microelectronics Corp.
    Inventors: Wang Xiang, Chia-Ching Hsu, Chun-Sung Huang, Yung-Lin Tseng, Wei-Chang Liu, Shen-De Wang