Patents by Inventor Hung-Sheng Chen

Hung-Sheng Chen 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: 12193344
    Abstract: A RRAM and its manufacturing method are provided. The RRAM includes a first dielectric layer formed on a substrate, and two memory cells. The two memory cells include two bottom electrode structures separated from each other. Each bottom electrode structure fills one of two trenches in the first dielectric layer. The two memory cells also include a resistance switching layer and a top electrode structure. The resistance switching layer is conformally formed on the surface of an opening in the first dielectric layer, and the opening is between the two trenches. The top electrode structure is on the resistance switching layer and fills the opening. A top surface of the first dielectric layer, top surfaces of the bottom electrode structures, a top surface of the resistance switching layer, and a top surface of the top electrode structure are coplanar.
    Type: Grant
    Filed: August 21, 2023
    Date of Patent: January 7, 2025
    Assignee: WINBOND ELECTRONICS CORP
    Inventors: Cheng-Hong Wei, Chien-Hsiang Yu, Hung-Sheng Chen
  • Patent number: 12063875
    Abstract: A method for manufacturing a resistive random access memory structure is provided. The method includes providing a substrate, and the substrate includes an array region and a peripheral region. The method includes forming a first low-k dielectric layer in the peripheral region, and the first low-k dielectric layer has a dielectric constant of less than 3. The method includes forming a plurality of memory cells on the substrate and in the array region. The method includes forming a dummy memory cell at a boundary between the array region and the peripheral region. The method includes forming a gap-filling dielectric layer on the substrate. The method includes forming a plurality of first conductive plugs in the gap-filling dielectric layer, and each of the plurality of first conductive plugs is in contact with one of the plurality of memory cells.
    Type: Grant
    Filed: May 26, 2023
    Date of Patent: August 13, 2024
    Assignee: WINBOND ELECTRONICS CORP.
    Inventors: Yen-De Lee, Ching-Yung Wang, Chien-Hsiang Yu, Hung-Sheng Chen
  • Patent number: 12027422
    Abstract: A method for forming a semiconductor structure includes: forming an active layer on a substrate; forming hard masks on the active layer, wherein a first spacing is disposed between two closely spaced hard masks in a predetermined word line region nearest to a predetermined selective gate region, wherein the first spacing is less than a second spacing between any two of the hard masks other than the two closely spaced hard masks; forming spacers on the sidewalls of the hard masks, wherein two spacers on opposite sides of the sidewalls of the closely spaced hard masks merge into a combined spacer; and transferring the patterns of the spacers to the active layer to form word lines. The step of transferring the patterns of the spacers includes transferring the pattern of the combined spacer to the active layer to form a first word line.
    Type: Grant
    Filed: May 21, 2021
    Date of Patent: July 2, 2024
    Assignee: WINBOND ELECTRONICS CORP.
    Inventors: Tseng-Yao Pan, Chien-Hsiang Yu, Hung-Sheng Chen, Ching-Yung Wang, Cheng-Hong Wei
  • Publication number: 20230397513
    Abstract: A RRAM and its manufacturing method are provided. The RRAM includes a first dielectric layer formed on a substrate, and two memory cells. The two memory cells include two bottom electrode structures separated from each other. Each bottom electrode structure fills one of two trenches in the first dielectric layer. The two memory cells also include a resistance switching layer and a top electrode structure. The resistance switching layer is conformally formed on the surface of an opening in the first dielectric layer, and the opening is between the two trenches. The top electrode structure is on the resistance switching layer and fills the opening. A top surface of the first dielectric layer, top surfaces of the bottom electrode structures, a top surface of the resistance switching layer, and a top surface of the top electrode structure are coplanar.
    Type: Application
    Filed: August 21, 2023
    Publication date: December 7, 2023
    Inventors: Cheng-Hong WEI, Chien-Hsiang YU, Hung-Sheng CHEN
  • Patent number: 11778932
    Abstract: A RRAM and its manufacturing method are provided. The RRAM includes a first dielectric layer formed on a substrate, and two memory cells. The two memory cells include two bottom electrode structures separated from each other. Each bottom electrode structure fills one of two trenches in the first dielectric layer. The two memory cells also include a resistance switching layer and a top electrode structure. The resistance switching layer is conformity formed on the surface of an opening in the first dielectric layer, and the opening is between the two trenches. The top electrode structure is on the resistance switching layer and fills the opening. A top surface of the first dielectric layer, top surfaces of the bottom electrode structures, a top surface of the resistance switching layer, and a top surface of the top electrode structure are coplanar.
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: October 3, 2023
    Assignee: WINBOND ELECTRONICS CORP.
    Inventors: Cheng-Hong Wei, Chien-Hsiang Yu, Hung-Sheng Chen
  • Publication number: 20230301206
    Abstract: A method for manufacturing a resistive random access memory structure is provided. The method includes providing a substrate, and the substrate includes an array region and a peripheral region. The method includes forming a first low-k dielectric layer in the peripheral region, and the first low-k dielectric layer has a dielectric constant of less than 3. The method includes forming a plurality of memory cells on the substrate and in the array region. The method includes forming a dummy memory cell at a boundary between the array region and the peripheral region. The method includes forming a gap-filling dielectric layer on the substrate. The method includes forming a plurality of first conductive plugs in the gap-filling dielectric layer, and each of the plurality of first conductive plugs is in contact with one of the plurality of memory cells.
    Type: Application
    Filed: May 26, 2023
    Publication date: September 21, 2023
    Inventors: Yen-De LEE, Ching-Yung WANG, Chien-Hsiang YU, Hung-Sheng CHEN
  • Patent number: 11764274
    Abstract: Provided is a memory device including a substrate, a plurality of stack structures, a protective layer, and a plurality of contact plugs. The stack structures are disposed over the substrate. The protective layer conformally covers top surfaces and sidewalls of the stack structures. The contact plugs are respectively disposed over the substrate between the stack structures. One of the contact plugs includes a narrower portion and a wider portion over the narrower portion. In a top view, the wider portion is separated from an adjacent protective layer by a distance.
    Type: Grant
    Filed: May 16, 2021
    Date of Patent: September 19, 2023
    Assignee: Winbond Electronics Corp.
    Inventors: Cheng-Hong Wei, Chien-Hsiang Yu, Hung-Sheng Chen
  • Patent number: 11737380
    Abstract: A resistive random access memory structure and its manufacturing method are provided. The resistive random access memory structure includes a substrate having an array region and a peripheral region. A first low-k dielectric layer located in the peripheral region has a dielectric constant of less than 3. Memory cells are located on the substrate and in the array region. A dielectric layer covers the memory cells and fills the space between adjacent memory cells in the array region, and its material layer is different from that of the first low-k dielectric layer. First conductive plugs are located in the dielectric layer and each of them is in contact with one of the memory cells. A dummy memory cell is located at the boundary between the array region and the peripheral region, and the dummy memory cell is not in contact with any one of the first conductive plugs.
    Type: Grant
    Filed: August 18, 2020
    Date of Patent: August 22, 2023
    Assignee: WINBOND ELECTRONICS CORP.
    Inventors: Yen-De Lee, Ching-Yung Wang, Chien-Hsiang Yu, Hung-Sheng Chen
  • Publication number: 20210398858
    Abstract: A method for forming a semiconductor structure includes: forming an active layer on a substrate; forming hard masks on the active layer, wherein a first spacing is disposed between two closely spaced hard masks in a predetermined word line region nearest to a predetermined selective gate region, wherein the first spacing is less than a second spacing between any two of the hard masks other than the two closely spaced hard masks; forming spacers on the sidewalls of the hard masks, wherein two spacers on opposite sides of the sidewalls of the closely spaced hard masks merge into a combined spacer; and transferring the patterns of the spacers to the active layer to form word lines. The step of transferring the patterns of the spacers includes transferring the pattern of the combined spacer to the active layer to form a first word line.
    Type: Application
    Filed: May 21, 2021
    Publication date: December 23, 2021
    Inventors: Tseng-Yao PAN, Chien-Hsiang YU, Hung-Sheng CHEN, Ching-Yung WANG, Cheng-Hong WEI
  • Publication number: 20210273064
    Abstract: Provided is a memory device including a substrate, a plurality of stack structures, a protective layer, and a plurality of contact plugs. The stack structures are disposed over the substrate. The protective layer conformally covers top surfaces and sidewalls of the stack structures. The contact plugs are respectively disposed over the substrate between the stack structures. One of the contact plugs includes a narrower portion and a wider portion over the narrower portion. In a top view, the wider portion is separated from an adjacent protective layer by a distance.
    Type: Application
    Filed: May 16, 2021
    Publication date: September 2, 2021
    Applicant: Winbond Electronics Corp.
    Inventors: Cheng-Hong Wei, Chien-Hsiang Yu, Hung-Sheng Chen
  • Patent number: 11056564
    Abstract: Provided is a memory device including a substrate, a plurality of stack structures, a protective layer, and a plurality of contact plugs. The stack structures are disposed over the substrate. The protective layer conformally covers top surfaces and sidewalls of the stack structures. The contact plugs are respectively disposed over the substrate between the stack structures. One of the contact plugs includes a narrower portion and a wider portion over the narrower portion. In a top view, the wider portion is separated from an adjacent protective layer by a distance.
    Type: Grant
    Filed: August 15, 2019
    Date of Patent: July 6, 2021
    Assignee: Winbond Electronics Corp.
    Inventors: Cheng-Hong Wei, Chien-Hsiang Yu, Hung-Sheng Chen
  • Publication number: 20210159406
    Abstract: A RRAM and its manufacturing method are provided. The RRAM includes a first dielectric layer formed on a substrate, and two memory cells. The two memory cells include two bottom electrode structures separated from each other. Each bottom electrode structure fills one of two trenches in the first dielectric layer. The two memory cells also include a resistance switching layer and a top electrode structure. The resistance switching layer is conformity formed on the surface of an opening in the first dielectric layer, and the opening is between the two trenches. The top electrode structure is on the resistance switching layer and fills the opening. A top surface of the first dielectric layer, top surfaces of the bottom electrode structures, a top surface of the resistance switching layer, and a top surface of the top electrode structure are coplanar.
    Type: Application
    Filed: November 20, 2020
    Publication date: May 27, 2021
    Inventors: Cheng-Hong WEI, Chien-Hsiang YU, Hung-Sheng CHEN
  • Patent number: 10957594
    Abstract: A manufacturing method of a semiconductor chip is provided. The method includes: forming a first metal pattern over a substrate and within a chip region and a scribe line region of the substrate, wherein the chip region is surrounded by the scribe line region; forming a metal material layer on the first metal pattern; patterning the metal material layer to remove substantially all portions of the metal material layer within the scribe line region and a portion of the metal material layer within the chip region, so as to form a second metal pattern within the chip region; forming a third metal pattern, wherein the second metal pattern within the chip region is covered by the third metal pattern, and the third metal pattern is located over the first metal pattern within the scribe line region; and performing singulation along the scribe line region, to form the semiconductor chip.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: March 23, 2021
    Assignee: Winbond Electronics Corp.
    Inventors: Cheng-Hong Wei, Hung-Sheng Chen
  • Publication number: 20210066594
    Abstract: A resistive random access memory structure and its manufacturing method are provided. The resistive random access memory structure includes a substrate having an array region and a peripheral region. A first low-k dielectric layer located in the peripheral region has a dielectric constant of less than 3. Memory cells are located on the substrate and in the array region. A dielectric layer covers the memory cells and fills the space between adjacent memory cells in the peripheral region, and its material layer is different from that of the first low-k dielectric layer. First conductive plugs are located in the dielectric layer and each of them is in contact with one of the memory cells. A dummy memory cell is located at the boundary between the array region and the peripheral region, and the dummy memory cell is not in contact with any one of the first conductive plugs.
    Type: Application
    Filed: August 18, 2020
    Publication date: March 4, 2021
    Inventors: Yen-De LEE, Ching-Yung WANG, Chien-Hsiang YU, Hung-Sheng CHEN
  • Patent number: 10867899
    Abstract: A method of manufacturing a semiconductor package includes: (1) providing a first passivation layer on a carrier; (2) patterning the first passivation layer to define a first hole; (3) disposing a first seed layer on the first hole; (4) disposing a first conductive layer on the first seed layer; (5) replacing the carrier with a second passivation layer; (6) patterning the second passivation layer to define a second hole exposing the first seed layer; and (7) disposing a second conductive layer on the exposed first seed layer through the second hole.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: December 15, 2020
    Assignee: ADVANCED SEMICONDUCTOR ENGINEERING, INC.
    Inventors: Yuan-Fu Sung, Shin-Hua Chao, Ming-Chi Liu, Hung-Sheng Chen
  • Publication number: 20200203492
    Abstract: Provided is a memory device including a substrate, a plurality of stack structures, a protective layer, and a plurality of contact plugs. The stack structures are disposed over the substrate. The protective layer conformally covers top surfaces and sidewalls of the stack structures. The contact plugs are respectively disposed over the substrate between the stack structures. One of the contact plugs includes a narrower portion and a wider portion over the narrower portion. In a top view, the wider portion is separated from an adjacent protective layer by a distance.
    Type: Application
    Filed: August 15, 2019
    Publication date: June 25, 2020
    Applicant: Winbond Electronics Corp.
    Inventors: Cheng-Hong Wei, Chien-Hsiang Yu, Hung-Sheng Chen
  • Patent number: 10685883
    Abstract: A method of wafer dicing and a die are provided. The method includes the following processes. A wafer is provided, the wafer includes a plurality of die regions and a scribe region between the die regions. The scribe region includes a substrate, and a dielectric layer and a test structure on the substrate, the test structure is disposed in the dielectric layer. A first removal process is performed to remove the test structure and the dielectric layer around the test structure, so as to expose the substrate. The first removal process includes performing a plurality of etching cycles, and each etching cycle includes performing a first etching process to remove a portion of the test structure and performing a second etching process to remove a portion of the dielectric layer. A second removal process is performed to remove the substrate in the scribe region, so as to form a plurality of dies separated from each other.
    Type: Grant
    Filed: May 2, 2019
    Date of Patent: June 16, 2020
    Assignee: Winbond Electronics Corp.
    Inventors: Cheng-Hong Wei, Hung-Sheng Chen, Ching-Wei Chen, Shuo-Che Chang
  • Publication number: 20200111707
    Abstract: A manufacturing method of a semiconductor chip is provided. The method includes: forming a first metal pattern over a substrate and within a chip region and a scribe line region of the substrate, wherein the chip region is surrounded by the scribe line region; forming a metal material layer on the first metal pattern; patterning the metal material layer to remove substantially all portions of the metal material layer within the scribe line region and a portion of the metal material layer within the chip region, so as to form a second metal pattern within the chip region; forming a third metal pattern, wherein the second metal pattern within the chip region is covered by the third metal pattern, and the third metal pattern is located over the first metal pattern within the scribe line region; and performing singulation along the scribe line region, to form the semiconductor chip.
    Type: Application
    Filed: October 5, 2018
    Publication date: April 9, 2020
    Applicant: Winbond Electronics Corp.
    Inventors: Cheng-Hong Wei, Hung-Sheng Chen
  • Patent number: 10515853
    Abstract: A method of wafer dicing is provided. The method of wafer dicing includes: providing a wafer, wherein the wafer includes a substrate, dies formed in and over the substrate and a scribe line structure located in a scribe line region between adjacent dies; removing a portion of the scribe line structure around a test device in the scribe line structure; attaching a front side of the wafer with a first tape; removing a portion of the substrate overlapping with the scribe line region from a back side of the wafer; attaching the back side of the wafer with a second tape; and removing the first tape along with the remaining portion of the scribe line structure attached thereon, leaving the dies separately attached on the second tape.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: December 24, 2019
    Assignee: Winbond Electronics Corp.
    Inventors: Ching-Wei Chen, Cheng-Hong Wei, Shuo-Che Chang, Hung-Sheng Chen, Hsin-Hung Chou
  • Publication number: 20190067181
    Abstract: A method of manufacturing a semiconductor package includes: (1) providing a first passivation layer on a carrier; (2) patterning the first passivation layer to define a first hole; (3) disposing a first seed layer on the first hole; (4) disposing a first conductive layer on the first seed layer; (5) replacing the carrier with a second passivation layer; (6) patterning the second passivation layer to define a second hole exposing the first seed layer; and (7) disposing a second conductive layer on the exposed first seed layer through the second hole.
    Type: Application
    Filed: October 30, 2018
    Publication date: February 28, 2019
    Applicant: ADVANCED SEMICONDUCTOR ENGINEERING, INC.
    Inventors: Yuan-Fu SUNG, Shin-Hua CHAO, Ming-Chi LIU, Hung-Sheng CHEN