Patents by Inventor Eng Huat Toh

Eng Huat Toh 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: 20230065063
    Abstract: Structures for a single-photon avalanche diode and methods of forming a structure for a single-photon avalanche diode. The structure includes a semiconductor layer having a first well and a second well defining a p-n junction with the first well, and an interlayer dielectric layer on the semiconductor layer. A deep trench isolation region includes a conductor layer and a dielectric liner. The conductor layer penetrates through the semiconductor layer and the interlayer dielectric layer. The conductor layer has a first end, a second end, and a sidewall that connects the first end to the second end. The dielectric liner is arranged to surround the sidewall of the conductor layer. A metal feature is connected to the first end of the conductor layer.
    Type: Application
    Filed: August 24, 2021
    Publication date: March 2, 2023
    Inventors: Ping Zheng, Eng Huat Toh, Eric Linardy, Kiok Boone Elgin Quek
  • Publication number: 20230065317
    Abstract: The disclosed subject matter relates generally to structures, memory devices and a method of forming the same. More particularly, the present disclosure relates to resistive random-access (ReRAM) memory devices having a spacer element on a side of the electrode. The present disclosure provides a memory device including a first electrode having a side, the side has upper and lower portions, a spacer element on the lower portion of the side of the first electrode, a resistive layer on the upper portion of the side of the first electrode, and a second electrode laterally adjacent to the side of the first electrode. The second electrode has a top surface, in which the top surface has a concave profile.
    Type: Application
    Filed: August 24, 2021
    Publication date: March 2, 2023
    Inventors: DESMOND JIA JUN LOY, ENG HUAT TOH, SHYUE SENG TAN
  • Patent number: 11585703
    Abstract: Structures including non-volatile memory elements and methods of forming such structures. The structure includes a first non-volatile memory element, a second non-volatile memory element, and temperature sensing electronics coupled to the first non-volatile memory element and the second non-volatile memory element.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: February 21, 2023
    Assignee: GlobalFoundries Singapore Pte. Ltd.
    Inventors: Bin Liu, Eng-Huat Toh, Shyue Seng Tan, Kiok Boone Elgin Quek
  • Publication number: 20230052035
    Abstract: A memory device and method of making the same is provided. The memory device includes a first electrode, an oxygen scavenging layer on the first electrode, a hard mask on the oxygen scavenging layer, and a second electrode on the hard mask. A switching layer is arranged on a portion of the oxygen scavenging layer, and the switching layer is conformal to a side surface of the hard mask.
    Type: Application
    Filed: August 12, 2021
    Publication date: February 16, 2023
    Inventors: DESMOND JIA JUN LOY, ENG HUAT TOH, Shyue Seng Tan
  • Publication number: 20230045062
    Abstract: A nonvolatile memory device is provided. The device comprises an active region, a floating gate over the active region and a wordline next to the floating gate. The floating gate has at least two narrow tips adjacent to the wordline and a portion of the floating gate between the narrow tips has a concave profile.
    Type: Application
    Filed: August 3, 2021
    Publication date: February 9, 2023
    Inventors: ZAR LWIN ZIN, SHYUE SENG TAN, ENG HUAT TOH
  • Patent number: 11574758
    Abstract: The present disclosure relates to integrated circuits, and more particularly, to a highly sensitive tunnel magnetoresistance sensor (TMR) with a Wheatstone bridge for field/position detection in integrated circuits and methods of manufacture and operation. In particular, the present disclosure relates to a structure including: a first magnetic tunneling junction (MTJ) structure on a first device level; and a second magnetic tunneling junction (MTJ) structure on a different device level than the first MTJ structure. The second MTJ structure includes properties different than the first MTJ structure.
    Type: Grant
    Filed: May 7, 2021
    Date of Patent: February 7, 2023
    Assignee: GLOBALFOUNDRIES Singapore Pte. Ltd.
    Inventors: Kazutaka Yamane, Eng-Huat Toh, Vinayak Bharat Naik, Hemant M. Dixit
  • Publication number: 20230033348
    Abstract: A semiconductor device is provided. The semiconductor device includes a memory cell and a charge-detrap electrode. The memory cell includes a substrate, a floating gate having a first side and a second side laterally opposite the first side, and a gate electrode. The substrate further includes a source region and a drain region, and a channel region arranged between the source region and the drain region. The floating gate is arranged over the channel region and the gate electrode is arranged adjacent to the first side of the floating gate. The charge-detrap electrode is arranged adjacent to the second side of the floating gate.
    Type: Application
    Filed: August 2, 2021
    Publication date: February 2, 2023
    Inventors: SHYUE SENG TAN, XINSHU CAI, ENG HUAT TOH, MYO AUNG MAUNG
  • Publication number: 20230029507
    Abstract: A nonvolatile memory device is provided. The nonvolatile memory device comprises an n-doped source, an n-doped drain, and a doped region in a first p-well in a substrate. A floating gate may be arranged over the first p-well, whereby the doped region may be arranged at least partially under the floating gate.
    Type: Application
    Filed: August 2, 2021
    Publication date: February 2, 2023
    Inventors: YONGSHUN SUN, SHYUE SENG TAN, ENG HUAT TOH, XINSHU CAI
  • Publication number: 20230014455
    Abstract: A magnetic field sensor may include a plurality of MTJ elements. Each MTJ element of has a state indicated by a magnetic moment direction of a sensing layer relative to a pinned, reference layer in an absence of an external magnetic field. The plurality of MTJ elements are arranged into two identical sets of at least two MTJ elements, where each MTJ element in each respective set has a different state. The states of the MTJ elements are arranged in a manner to measure the external magnetic field regardless of the direction of the external magnetic field. The MTJ elements include identical layers, and are electrically serially connected.
    Type: Application
    Filed: July 14, 2021
    Publication date: January 19, 2023
    Inventors: Hemant M. Dixit, Vinayak Bharat Naik, Kazutaka Yamane, Eng Huat Toh
  • Patent number: 11552128
    Abstract: A memory device may be provided. The memory device may include a substrate, wherein the substrate includes a well having a first conductivity type. The memory device may further include a contact element arranged in the well and including a first contact having the first conductivity type; a diode layer arranged in the well and having a second conductivity type opposite to the first conductivity type; and a dummy gate configured to isolate the first contact from the diode layer. The memory device may further include a memory element electrically connected to the diode layer.
    Type: Grant
    Filed: August 17, 2020
    Date of Patent: January 10, 2023
    Assignee: GLOBALFOUNDRIES Singapore Pte. Ltd.
    Inventors: Wei Chang, Eng Huat Toh, Juan Boon Tan, Shyue Seng Tan
  • Publication number: 20220416158
    Abstract: The disclosed subject matter relates generally to structures, memory devices and a method of forming the same. More particularly, the present disclosure relates to resistive random-access (ReRAM) memory devices with an electrode having tapered sides. The present disclosure provides a memory device including a first electrode having a tapered shape and including a tapered side, a top surface, and a bottom surface, in which the bottom surface has a larger surface area than the top surface, a resistive layer on and conforming to at least the tapered side of the first electrode, and a second electrode laterally adjacent to the tapered side of the first electrode, the second electrode including a top surface and a side surface abutting the resistive layer, in which the side surface forms an acute angle with the top surface.
    Type: Application
    Filed: June 24, 2021
    Publication date: December 29, 2022
    Inventors: DESMOND JIA JUN LOY, ENG HUAT TOH, SHYUE SENG TAN
  • Publication number: 20220384082
    Abstract: The present disclosure relates to integrated circuits, and more particularly, a tunnel magneto-resistive (TMR) sensor with perpendicular magnetic tunneling junction (p-MTJ) structures and methods of manufacture and operation. The structure includes: a first magnetic tunneling junction (MTJ) structure on a first level; a second MTJ structure on a same wiring level as the first MTJ structure; and at least one metal line between the first MTJ structure and the second MTJ structure.
    Type: Application
    Filed: May 26, 2021
    Publication date: December 1, 2022
    Inventors: Eng-Huat TOH, Hemant M. DIXIT, Vinayak Bharat NAIK, Kazutaka YAMANE
  • Patent number: 11513175
    Abstract: A semiconductor device may be provided including a first series portion and a second series portion electrically connected in parallel with the first series portion. The first series portion may include a first MTJ stack and a first resistive element electrically connected in series. The second series portion may include a second MTJ stack and a second resistive element electrically connected in series. The first resistive element may include a third MTJ stack and the second resistive element may include a fourth MTJ stack. The first, second, third, and fourth MTJ stacks may include a same number of layers, which may include a fixed layer, a free layer, and a tunnelling barrier layer between the fixed layer and the free layer. Alternatively, the first resistive element may include a first transistor and the second resistive element may include a second transistor.
    Type: Grant
    Filed: February 11, 2020
    Date of Patent: November 29, 2022
    Assignee: GLOBALFOUNDRIES Singapore Pte. Ltd.
    Inventors: Ping Zheng, Eng Huat Toh, Kazutaka Yamane, Shyue Seng Tan, Kiok Boone Elgin Quek
  • Patent number: 11515314
    Abstract: A nonvolatile memory device is provided. The device comprises a memory transistor. A first capacitor is coupled to the memory transistor. A second capacitor is coupled to the memory transistor. The second capacitor comprises a first electrode and a second electrode. The first capacitor and the second capacitor are connected to separate input terminals.
    Type: Grant
    Filed: June 4, 2020
    Date of Patent: November 29, 2022
    Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.
    Inventors: Xinshu Cai, Lanxiang Wang, Yongshun Sun, Eng Huat Toh, Shyue Seng Tan
  • Patent number: 11502250
    Abstract: A memory device may be provided, including a base insulating layer, a bottom electrode arranged within the base insulating layer, a substantially planar switching layer arranged over the base insulating layer and a substantially planar top electrode arranged over the switching layer in a laterally offset position relative to the bottom electrode.
    Type: Grant
    Filed: May 26, 2020
    Date of Patent: November 15, 2022
    Assignee: GLOBALFOUNDRIES Singapore Pte. Ltd.
    Inventors: Desmond Jia Jun Loy, Eng Huat Toh, Shyue Seng Tan
  • Patent number: 11500041
    Abstract: The present disclosure relates to semiconductor structures and, more particularly, to 3-contact hall sensors and methods of manufacture and modes of operation. The structure includes: a plurality of sensing blocks each of which include a plurality of contacts; a first switching element connecting to a first set of sensing blocks of the plurality of sensing blocks; and a second switching element connecting to a second set of sensing blocks of the plurality of sensing blocks.
    Type: Grant
    Filed: October 5, 2020
    Date of Patent: November 15, 2022
    Assignee: GLOBALFOUNDRIES Singapore Pte. Ltd.
    Inventors: Yongshun Sun, Eng Huat Toh, Ping Zheng
  • Patent number: 11502127
    Abstract: The embodiments herein relate to semiconductor memory devices and methods of forming the same. A semiconductor memory device is provided. The semiconductor memory device includes a dual-gate transistor and a memory cell. The memory cell is adjacent to the dual-gate transistor, wherein the memory cell and the dual-gate transistor share a common electrode.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: November 15, 2022
    Assignee: GlobalFoundries Singapore Pte. Ltd.
    Inventors: Shyue Seng Tan, Xinshu Cai, Eng Huat Toh
  • Publication number: 20220359114
    Abstract: The present disclosure relates to integrated circuits, and more particularly, to a highly sensitive tunnel magnetoresistance sensor (TMR) with a Wheatstone bridge for field/position detection in integrated circuits and methods of manufacture and operation. In particular, the present disclosure relates to a structure including: a first magnetic tunneling junction (MTJ) structure on a first device level; and a second magnetic tunneling junction (MTJ) structure on a different device level than the first MTJ structure. The second MTJ structure includes properties different than the first MTJ structure.
    Type: Application
    Filed: May 7, 2021
    Publication date: November 10, 2022
    Inventors: Kazutaka YAMANE, Eng-Huat TOH, Vinayak Bharat NAIK, Hemant M. DIXIT
  • Publication number: 20220359580
    Abstract: Structures for a single-photon avalanche diode and methods of forming a structure for a single-photon avalanche diode. The structure includes a semiconductor substrate having a top surface, a semiconductor layer on the top surface of the semiconductor substrate, a light-absorbing layer on a portion of the semiconductor layer, and a doped region in the portion of the semiconductor layer. The doped region is positioned in the portion of the semiconductor layer adjacent to the light-absorbing layer.
    Type: Application
    Filed: May 4, 2021
    Publication date: November 10, 2022
    Inventors: Ping Zheng, Eng Huat Toh, Kiok Boone Elgin Quek, Kien Seen Daniel Chong, Jing Hua Michelle Tng
  • Patent number: 11495608
    Abstract: A nonvolatile memory device is provided. The device comprises a floating gate having a first finger and a second finger and an active region below the floating gate fingers. A first doped region is in the active region laterally displaced from the first floating gate finger on a first side. A second doped region is in the active region laterally displaced from the first floating gate finger on a second side. A third doped region is in the active region laterally displaced from the second floating gate finger and the second doped region.
    Type: Grant
    Filed: August 3, 2020
    Date of Patent: November 8, 2022
    Assignee: GLOBALFOUNDRIES Singapore Pte. Ltd.
    Inventors: Lanxiang Wang, Eng Huat Toh, Shyue Seng Tan, Xinshu Cai, Yongshun Sun