Patents by Inventor Curtis Chun-I HSIEH

Curtis Chun-I HSIEH 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: 20210358544
    Abstract: The present disclosure generally relates to memory devices and methods of forming the same. More particularly, the present disclosure relates to resistive random-access (ReRAM) memory devices incorporating reference cells for achieving high sensing yield. The present disclosure provides a memory device including a main cell structure including a switching element arranged between a pair of conductors, and a reference cell structure electrically coupled to the main cell structure. The reference cell structure includes a switching element arranged between a pair of conductors, in which the switching element of the reference cell structure has a dimension that is different from a dimension of the switching element of the main cell structure.
    Type: Application
    Filed: July 28, 2021
    Publication date: November 18, 2021
    Inventors: CURTIS CHUN-I HSIEH, WEI-HUI HSU, WANBING YI, YI JIANG, KAI KANG, JUAN BOON TAN
  • Publication number: 20210320249
    Abstract: Structures for a non-volatile memory element and methods of forming a structure for a non-volatile memory element. A switching layer is positioned over a first electrode, and a dielectric layer is positioned over the switching layer. The dielectric layer includes an opening extending to the switching layer. A second electrode includes a portion in the opening in the dielectric layer. The portion of the second electrode is in contact with a first portion of the switching layer. The switching layer further includes a second portion positioned between the dielectric layer and the first electrode.
    Type: Application
    Filed: April 13, 2020
    Publication date: October 14, 2021
    Inventors: Lup San Leong, Curtis Chun-I Hsieh, Juan Boon Tan, Eng Huat Toh, Kin Wai Tang
  • Patent number: 11127784
    Abstract: Integrated circuits with embedded memory structures, and methods for fabricating integrated circuits are provided. An exemplary method for fabricating an integrated circuit includes forming from a first metallization layer a first lower conductive interconnect in a first region of a dielectric layer and a second lower conductive interconnect in a second region of the dielectric layer. The method includes forming a memory structure in the first region. Further, the method includes depositing an interlayer dielectric over the first region and over the second region. Also, the method includes forming from a second metallization layer a first upper conductive interconnect over the interlayer dielectric, wherein the first upper conductive interconnect is coupled to the memory structure.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: September 21, 2021
    Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.
    Inventors: Curtis Chun-I Hsieh, Wanbing Yi, Yi Jiang, Juan Boon Tan
  • Patent number: 11127459
    Abstract: The present disclosure generally relates to memory devices and methods of forming the same. More particularly, the present disclosure relates to resistive random-access (ReRAM) memory devices incorporating reference cells for achieving high sensing yield. The present disclosure provides a memory device including a main cell structure having a dimension, and a reference cell structure electrically coupled to the main cell structure. The reference cell structure has a dimension that is different from the dimension of the main cell structure, in which the main cell structure and the reference cell structure include a switching element arranged between a pair of conductors.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: September 21, 2021
    Assignee: GLOBALFOUNDRIES Singapore Pte. Ltd.
    Inventors: Curtis Chun-I Hsieh, Wei-Hui Hsu, Wanbing Yi, Yi Jiang, Kai Kang, Juan Boon Tan
  • Publication number: 20210287741
    Abstract: The present disclosure generally relates to memory devices and methods of forming the same. More particularly, the present disclosure relates to resistive random-access (ReRAM) memory devices incorporating reference cells for achieving high sensing yield. The present disclosure provides a memory device including a main cell structure having a dimension, and a reference cell structure electrically coupled to the main cell structure. The reference cell structure has a dimension that is different from the dimension of the main cell structure, in which the main cell structure and the reference cell structure include a switching element arranged between a pair of conductors.
    Type: Application
    Filed: March 16, 2020
    Publication date: September 16, 2021
    Inventors: CURTIS CHUN-I HSIEH, WEI-HUI HSU, WANBING YI, YI JIANG, KAI KANG, JUAN BOON TAN
  • Patent number: 11081523
    Abstract: A memory device may be provided, including a base layer, an insulating layer, a first electrode, a switching element, a capping element and a second electrode. The insulating layer may be arranged over the base layer and may include a recess having opposing side walls. The first electrode may be arranged at least partially within the recess of the insulating layer and along the opposing side walls of the recess of the insulating layer. The switching element may be arranged at least partially within the recess of the insulating layer and along the first electrode. The capping element and the second electrode may be arranged at least partially within the recess of the insulating layer. The capping element may be arranged between the second electrode and the switching element, and a part of the second electrode may extend across the capping element to contact the switching element.
    Type: Grant
    Filed: May 14, 2020
    Date of Patent: August 3, 2021
    Assignee: GLOBALFOUNDRIES Singapore Pte. Ltd.
    Inventors: Curtis Chun-I Hsieh, Wei-Hui Hsu, Yi Jiang, Wanbing Yi, Juan Boon Tan
  • Patent number: 11031251
    Abstract: A method of forming a uniform self-aligned low-k layer with a large process window for inserting a memory array with pillar/convex topography and the resulting device are provided. Embodiments include forming a substrate with a first region and a second region; forming a first low-K layer over the substrate; forming an oxide layer over the first low-K layer; forming a spacer over the oxide layer; etching the spacer to expose the oxide layer in the first region; removing the oxide layer and a portion of the first low-K layer in the first region and a portion of the oxide layer and a portion of the spacer in the second region; removing the spacer in the second region; cleaning the first low-K layer and the oxide layer, a triangular-like shaped portion of the oxide layer remaining; and forming a second low-K layer over the substrate.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: June 8, 2021
    Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.
    Inventors: Curtis Chun-I Hsieh, Wanbing Yi, Yi Jiang, Juan Boon Tan, Zhehui Wang
  • Patent number: 10734572
    Abstract: A device including a capping layer over a portion of a top electrode, and method of production thereof. Embodiments include an MRAM cell in a first region and a logic area in a second region of a substrate, wherein the MRAM cell includes a MTJ pillar between a top electrode and a bottom electrode; and a capping layer over a portion of the top electrode.
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: August 4, 2020
    Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.
    Inventors: Yi Jiang, Curtis Chun-I Hsieh, Wanbing Yi, Juan Boon Tan
  • Patent number: 10734444
    Abstract: Integrated circuits with integrated memory devices and high capacitors, and methods for fabricating such integrated circuits are provided. An exemplary method for fabricating an integrated circuit includes forming, from a lower conductive layer, a lower memory interconnect and a lower capacitor interconnects over a substrate. The method further includes forming a conductive memory via coupled to the lower memory interconnect and a conductive capacitor vias coupled to the lower capacitor interconnect. Also, the method includes forming a memory structure over the memory via and forming a capacitor dielectric layer over the memory structure and over the capacitor via. Further, the method includes forming, from an upper conductive layer, an upper memory interconnect coupled to the memory structure and an upper capacitor interconnects over the capacitor dielectric layer over the capacitor via. The capacitor via, capacitor dielectric layer, and upper capacitor interconnects form the high capacitor.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: August 4, 2020
    Assignee: GLOBALFOUNDRIES Singapore Pte. Ltd.
    Inventors: Yi Jiang, Curtis Chun-I Hsieh, Wanbing Yi, Juan Boon Tan
  • Publication number: 20200243602
    Abstract: Integrated circuits with integrated memory devices and high capacitors, and methods for fabricating such integrated circuits are provided. An exemplary method for fabricating an integrated circuit includes forming, from a lower conductive layer, a lower memory interconnect and a lower capacitor interconnects over a substrate. The method further includes forming a conductive memory via coupled to the lower memory interconnect and a conductive capacitor vias coupled to the lower capacitor interconnect. Also, the method includes forming a memory structure over the memory via and forming a capacitor dielectric layer over the memory structure and over the capacitor via. Further, the method includes forming, from an upper conductive layer, an upper memory interconnect coupled to the memory structure and an upper capacitor interconnects over the capacitor dielectric layer over the capacitor via. The capacitor via, capacitor dielectric layer, and upper capacitor interconnects form the high capacitor.
    Type: Application
    Filed: January 28, 2019
    Publication date: July 30, 2020
    Inventors: Yi Jiang, Curtis Chun-I Hsieh, Wanbing Yi, Juan Boon Tan
  • Patent number: 10720580
    Abstract: A device including a reduced top RRAM electrode structure, and method of production thereof. Embodiments include a bottom resistive random-access memory (RRAM) electrode structure over a plurality of lower metal level contacts formed laterally separated in a substrate; a resistive switching structure over the bottom RRAM electrode structure; a top RRAM electrode structure over the resistive switching structure; a protective structure over the top RRAM electrode structure; an encapsulation structure over the bottom RRAM electrode structure and on sidewalls of the resistive switching structure, the top RRAM electrode structure and the protective structure; and an Nblock layer over the substrate.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: July 21, 2020
    Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.
    Inventors: Curtis Chun-I Hsieh, Wei-Hui Hsu, Wanbing Yi, Yi Jiang, Juan Boon Tan
  • Patent number: 10693054
    Abstract: A method of forming a memory cell with a high aspect ratio metal via formed underneath a metal tunnel junction (MTJ) and the resulting device are provided. Embodiments include a device having a metal via formed underneath a metal tunnel junction (MTJ) in a memory cell, and the metal via has an aspect ratio smaller than 2.
    Type: Grant
    Filed: July 26, 2018
    Date of Patent: June 23, 2020
    Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.
    Inventors: Danny Pak-Chum Shum, Wanbing Yi, Curtis Chun-I Hsieh, Yi Jiang, Juan Boon Tan, Benfu Lin
  • Publication number: 20200194496
    Abstract: Integrated circuits with embedded memory structures, and methods for fabricating integrated circuits are provided. An exemplary method for fabricating an integrated circuit includes forming from a first metallization layer a first lower conductive interconnect in a first region of a dielectric layer and a second lower conductive interconnect in a second region of the dielectric layer. The method includes forming a memory structure in the first region. Further, the method includes depositing an interlayer dielectric over the first region and over the second region. Also, the method includes forming from a second metallization layer a first upper conductive interconnect over the interlayer dielectric, wherein the first upper conductive interconnect is coupled to the memory structure.
    Type: Application
    Filed: December 12, 2018
    Publication date: June 18, 2020
    Inventors: Curtis Chun-I Hsieh, Wanbing Yi, Yi Jiang, Juan Boon Tan
  • Publication number: 20200194498
    Abstract: Integrated circuits and methods of producing the same are provided. In an exemplary embodiment, a method of producing an integrated circuit includes forming a lower contact in a lower interlayer dielectric layer. A base contact layer is formed overlying the lower interlayer dielectric layer and the lower contact, and a base contact is formed by removing a portion of the base contact layer. The base contact is formed in electrical communication with the lower contact. A base interlayer dielectric layer is formed overlying the lower interlayer dielectric layer after forming the base contact, where the base interlayer dielectric layer is adjacent to a base contact side surface. A memory cell is formed overlying the base contact, where the memory cell is in electrical communication with the base contact.
    Type: Application
    Filed: February 26, 2020
    Publication date: June 18, 2020
    Inventors: Hongxi Liu, Baolei Wu, Narayanapillai Kulothungasagaran, Subash Pattabiraman Lakshmipathi, Yew Tuck Clament Chow, Curtis Chun-I Hsieh, Yi Jiang, Jin Ho Lee, Yong Wee Francis Poh
  • Patent number: 10651380
    Abstract: In a non-limiting embodiment, a device may be formed having a substrate that has at least a first region. A base dielectric layer is arranged over the substrate. The base dielectric layer includes an interconnect in the first region. A first electrode is arranged over the interconnect in the first region. A mask structure is arranged over the first electrode. At least one spacer stack is arranged at least partially around the mask structure and the first electrode. The spacer stack(s) includes a resistive switching element at least partially lining sidewalls of the mask structure and the first electrode, and a second electrode arranged over the resistive switching element.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: May 12, 2020
    Assignee: GLOBALFOUNDRIES Singapore Pte. Ltd.
    Inventors: Curtis Chun-I Hsieh, Wei-Hui Hsu, Wanbing Yi, Yi Jiang, Juan Boon Tan
  • Publication number: 20200127197
    Abstract: A device including a reduced top RRAM electrode structure, and method of production thereof. Embodiments include a bottom resistive random-access memory (RRAM) electrode structure over a plurality of lower metal level contact formed laterally separated in a substrate; a resistive switching structure over the bottom RRAM electrode structure; a top RRAM electrode structure over the resistive switching structure; a protective structure over the top RRAM electrode structure; an encapsulation structure over the bottom RRAM electrode structure and on sidewalls of the resistive switching structure, the top RRAM electrode structure and the protective structure; and an Nblock layer over the substrate.
    Type: Application
    Filed: October 22, 2018
    Publication date: April 23, 2020
    Inventors: Curtis Chun-I HSIEH, Wei-Hui HSU, Wanbing YI, Yi JIANG, Juan Boon TAN
  • Patent number: 10629650
    Abstract: Integrated circuits and methods of producing the same are provided. In an exemplary embodiment, a method of producing an integrated circuit includes forming a lower contact in a lower interlayer dielectric layer. A base contact layer is formed overlying the lower interlayer dielectric layer and the lower contact, and a base contact is formed by removing a portion of the base contact layer. The base contact is formed in electrical communication with the lower contact. A base interlayer dielectric layer is formed overlying the lower interlayer dielectric layer after forming the base contact, where the base interlayer dielectric layer is adjacent to a base contact side surface. A memory cell is formed overlying the base contact, where the memory cell is in electrical communication with the base contact.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: April 21, 2020
    Assignee: GLOBALFOUNDRIES Singapore Pte. Ltd.
    Inventors: Hongxi Liu, Baolei Wu, Narayanapillai Kulothungasagaran, Subash Pattabiraman Lakshmipathi, Yew Tuck Clament Chow, Curtis Chun-I Hsieh, Yi Jiang, Jin Ho Lee, Yong Wee Francis Poh
  • Patent number: 10608046
    Abstract: Devices and methods of forming a device. A two-terminal device element includes a device stack coupled between first and second terminals. The first terminal contacts a metal line in an underlying interconnect level, and the second terminal is formed over the device layer. An encapsulation liner covers exposed side surfaces of the device stack of the two-terminal device element. A dual damascene interconnect is coupled to the two-terminal device element.
    Type: Grant
    Filed: July 5, 2019
    Date of Patent: March 31, 2020
    Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.
    Inventors: Wanbing Yi, Curtis Chun-I Hsieh, Juan Boon Tan, Soh Yun Siah, Hai Cong, Alex See, Young Seon You, Danny Pak-Chum Shum, Hyunwoo Yang
  • Patent number: 10593728
    Abstract: Integrated circuits and methods for fabricating magnetic tunnel junction (MTJ) structures and integrated circuits are provided. An exemplary method for fabricating an integrated circuit including a magnetic tunnel junction (MTJ) structure includes forming magnetic tunnel junction (MTJ) layers over a substrate. Further, the method includes forming a conductive pillar over the MTJ layers, wherein the conductive pillar is formed with an uppermost surface, and wherein the uppermost surface is not planarized. Also, the method includes etching the MTJ layers to form a pillar structure from portions of the MTJ layers underlying the conductive pillar.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: March 17, 2020
    Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.
    Inventors: Curtis Chun-I Hsieh, Wanbing Yi, Yi Jiang, Juan Boon Tan
  • Publication number: 20200075668
    Abstract: Integrated circuits and methods of producing the same are provided. In an exemplary embodiment, a method of producing an integrated circuit includes forming a lower contact in a lower interlayer dielectric layer. A base contact layer is formed overlying the lower interlayer dielectric layer and the lower contact, and a base contact is formed by removing a portion of the base contact layer. The base contact is formed in electrical communication with the lower contact. A base interlayer dielectric layer is formed overlying the lower interlayer dielectric layer after forming the base contact, where the base interlayer dielectric layer is adjacent to a base contact side surface. A memory cell is formed overlying the base contact, where the memory cell is in electrical communication with the base contact.
    Type: Application
    Filed: August 29, 2018
    Publication date: March 5, 2020
    Inventors: Hongxi Liu, Baolei Wu, Narayanapillai Kulothungasagaran, Subash Pattabiraman Lakshmipathi, Yew Tuck Clament Chow, Curtis Chun-I Hsieh, Yi Jiang, Jin Ho Lee, Yong Wee Francis Poh