Patents by Inventor Yongshun SUN
Yongshun SUN 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).
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Publication number: 20240268241Abstract: Structures that include a layer stack for a resistive memory element and methods of forming a structure that includes a layer stack for a resistive memory element. The structure comprises a resistive memory element including a first electrode, a second electrode, and a switching layer disposed between the second electrode and the first electrode. The first electrode includes a first layer and a second layer between the first layer and the switching layer. The switching layer has a first thickness, and the second layer of the first electrode has a second thickness that is less than the first thickness of the switching layer.Type: ApplicationFiled: February 6, 2023Publication date: August 8, 2024Inventors: Curtis Chun-I Hsieh, Kai Kang, Wanbing Yi, Yongshun Sun, Eng-Huat Toh, Juan Boon Tan
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Patent number: 12051761Abstract: A structure includes a photodetector including alternating p-type semiconductor layers and n-type semiconductor layers in contact with each other in a stack. Each semiconductor layer includes an extension extending beyond an end of an adjacent semiconductor layer of the alternating p-type semiconductor layers and n-type semiconductor layers. The extensions provide an area for operative coupling to a contact. The extensions can be arranged in a cascading, staircase arrangement, or may extend from n-type semiconductor layers on one side of the stack and from p-type semiconductor layers on another side of the stack. The photodetector can be on a substrate in a first region, and a complementary metal-oxide semiconductor (CMOS) device may be on the substrate on a second region separated from the first region by a trench isolation. The photodetector is capable of detecting and converting near-infrared (NIR) light, e.g., having wavelengths of greater than 0.75 micrometers.Type: GrantFiled: May 5, 2022Date of Patent: July 30, 2024Assignee: GLOBALFOUNDRIES SINGAPORE PTE LTDInventors: Xinshu Cai, Yongshun Sun, Kiok Boone Elgin Quek, Khee Yong Lim, Shyue Seng Tan, Eng Huat Toh, Thanh Hoa Phung, Cancan Wu
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Publication number: 20240224528Abstract: The disclosure provides a structure including a transistor coupled to terminals for injecting charge carriers into a pair of spacers. The structure includes a gate structure over a substrate and having a pair of spacers on opposite horizontal ends of the gate structure. A pair of source/drain (S/D) regions is within the substrate, and each S/D region is below a respective one of the pair of spacers. Each of the pair of S/D regions is coupled to one of a pair of terminals configured to inject charge carriers into either of the pair of spacers.Type: ApplicationFiled: January 3, 2023Publication date: July 4, 2024Inventors: Yongshun Sun, Eng Huat Toh
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Patent number: 11821924Abstract: The present disclosure relates to semiconductor structures and, more particularly, to an on-chip current sensor. The on-chip current sensor includes: a vertical Hall sensor; and a current carrying conductor in a first wiring layer above the vertical Hall sensor.Type: GrantFiled: March 2, 2022Date of Patent: November 21, 2023Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.Inventors: Eng Huat Toh, Yongshun Sun
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Publication number: 20230361236Abstract: A structure includes a photodetector including alternating p-type semiconductor layers and n-type semiconductor layers in contact with each other in a stack. Each semiconductor layer includes an extension extending beyond an end of an adjacent semiconductor layer of the alternating p-type semiconductor layers and n-type semiconductor layers. The extensions provide an area for operative coupling to a contact. The extensions can be arranged in a cascading, staircase arrangement, or may extend from n-type semiconductor layers on one side of the stack and from p-type semiconductor layers on another side of the stack. The photodetector can be on a substrate in a first region, and a complementary metal-oxide semiconductor (CMOS) device may be on the substrate on a second region separated from the first region by a trench isolation. The photodetector is capable of detecting and converting near-infrared (NIR) light, e.g., having wavelengths of greater than 0.75 micrometers.Type: ApplicationFiled: May 5, 2022Publication date: November 9, 2023Inventors: Xinshu Cai, Yongshun Sun, Kiok Boone Elgin Quek, Khee Yong Lim, Shyue Seng Tan, Eng Huat Toh, Thanh Hoa Phung, Cancan Wu
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Patent number: 11810982Abstract: 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: GrantFiled: August 2, 2021Date of Patent: November 7, 2023Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.Inventors: Yongshun Sun, Shyue Seng Tan, Eng Huat Toh, Xinshu Cai
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Patent number: 11762042Abstract: A magnetic field sensor may include a semiconductor structure having a planar surface, and first, second, and third sensing devices. The semiconductor structure may include a semiconductor member having a two-dimensional electron gas therein, and an insulator member disposed on the semiconductor member. The first sensing device may be configured to sense magnetic field along a first axis parallel to the planar surface. The second sensing device may be configured to sense magnetic field along a second axis parallel to the planar surface, and orthogonal to the first axis. The third sensing device may be configured to sense a magnetic field along a third axis normal to the planar surface. Each of the first, second, and third sensing devices may be formed in the semiconductor structure and may include electrodes that extend from the insulator member to the two-dimensional electron gas.Type: GrantFiled: November 27, 2020Date of Patent: September 19, 2023Assignee: GLOBALFOUNDRIES Singapore Pte. Ltd.Inventors: Ping Zheng, Eng Huat Toh, Yongshun Sun
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Patent number: 11761983Abstract: The present disclosure provides a wafer probe card including: a non-magnetic printed circuit board (PCB) having a first side and a second side opposite the first side, the first side configured to face a magnet; a plurality of connection structures provided on the first side of the non-magnetic PCB; and a Hall sensor unit fixedly provided on the first side of the non-magnetic PCB, the Hall sensor electrically connected to at least one of the plurality of connection structures.Type: GrantFiled: September 13, 2021Date of Patent: September 19, 2023Assignee: GLOBALFOUNDRIES Singapore Pte. Ltd.Inventors: Guoquan Teo, Meng Yew Seah, Yongshun Sun, Eng Huat Toh
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Publication number: 20230280378Abstract: The present disclosure relates to semiconductor structures and, more particularly, to an on-chip current sensor. The on-chip current sensor includes: a vertical Hall sensor; and a current carrying conductor in a first wiring layer above the vertical Hall sensor.Type: ApplicationFiled: March 2, 2022Publication date: September 7, 2023Inventors: Eng Huat TOH, Yongshun SUN
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Patent number: 11641739Abstract: A memory device is provided. The memory device includes an active region in a substrate, an electrically-isolated electrode, and a dielectric layer. The electrically-isolated electrode is disposed over the active region. The dielectric layer is disposed between the electrically-isolated electrode and the active region and has a first dielectric portion having a first thickness and a second dielectric portion having a second thickness.Type: GrantFiled: June 1, 2020Date of Patent: May 2, 2023Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.Inventors: Yongshun Sun, Eng Huat Toh, Shyue Seng Tan, Xinshu Cai, Lanxiang Wang
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Publication number: 20230083401Abstract: The present disclosure provides a wafer probe card including: a non-magnetic printed circuit board (PCB) having a first side and a second side opposite the first side, the first side configured to face a magnet; a plurality of connection structures provided on the first side of the non-magnetic PCB; and a Hall sensor unit fixedly provided on the first side of the non-magnetic PCB, the Hall sensor electrically connected to at least one of the plurality of connection structures.Type: ApplicationFiled: September 13, 2021Publication date: March 16, 2023Inventors: Guoquan TEO, Meng Yew SEAH, Yongshun SUN, Eng Huat TOH
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Publication number: 20230029507Abstract: 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: ApplicationFiled: August 2, 2021Publication date: February 2, 2023Inventors: YONGSHUN SUN, SHYUE SENG TAN, ENG HUAT TOH, XINSHU CAI
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Patent number: 11515314Abstract: 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: GrantFiled: June 4, 2020Date of Patent: November 29, 2022Assignee: GLOBALFOUNDRIES SINGAPORE PTE. LTD.Inventors: Xinshu Cai, Lanxiang Wang, Yongshun Sun, Eng Huat Toh, Shyue Seng Tan
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Patent number: 11500041Abstract: 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: GrantFiled: October 5, 2020Date of Patent: November 15, 2022Assignee: GLOBALFOUNDRIES Singapore Pte. Ltd.Inventors: Yongshun Sun, Eng Huat Toh, Ping Zheng
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Patent number: 11495608Abstract: 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: GrantFiled: August 3, 2020Date of Patent: November 8, 2022Assignee: GLOBALFOUNDRIES Singapore Pte. Ltd.Inventors: Lanxiang Wang, Eng Huat Toh, Shyue Seng Tan, Xinshu Cai, Yongshun Sun
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Patent number: 11450677Abstract: A nonvolatile memory device may be provided. The nonvolatile memory device comprises an active region, an n-well region and an isolation region separating the active region and the n-well region. A floating gate may be provided. The floating gate may be arranged over a portion of the active region and over a first portion of the n-well region. A first doped region in the active region may be laterally displaced from the floating gate on a first side and a second doped region in the active region may be laterally displaced from the floating gate on a second side opposite to the first side. A contact may be arranged over the n-well region, whereby the contact may be laterally displaced from a first corner of the floating gate over the first portion of the n-well region. A silicide exclusion layer may be arranged at least partially over the floating gate.Type: GrantFiled: November 9, 2020Date of Patent: September 20, 2022Assignee: Globalfoundries Singapore Pte. Ltd.Inventors: Lanxiang Wang, Shyue Seng Tan, Xinshu Cai, Eng Huat Toh, Yongshun Sun
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Patent number: 11437392Abstract: An illustrative device disclosed herein includes a first memory cell comprising a first memory gate positioned above an upper surface of a semiconductor substrate and a second memory cell comprising a second memory gate positioned above the upper surface of the semiconductor substrate. In this example, the device also includes a conductive select gate structure positioned above the upper surface of the semiconductor substrate between the first and second memory gates, wherein the conductive select gate structure is shared by the first and second memory cells.Type: GrantFiled: July 28, 2020Date of Patent: September 6, 2022Assignee: GLOBALFOUNDRIES Singapore Pte. Ltd.Inventors: Yongshun Sun, Eng Huat Toh, Shyue Seng Tan, Kiok Boone Elgin Quek
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Patent number: 11380703Abstract: A memory structure may be provided, including a substrate, and a first well region, a second well region, and a third well region arranged within the substrate, where the first well region and the third well region may have a first conductivity type, and the second well region may have a second conductivity type different from the first conductivity type, and where the second well region may be arranged laterally between the first well region and the third well region. The memory structure may further include a first gate structure and a second gate structure arranged over the second well region. The first gate structure may extend over the third well region and the second gate structure may extend over the first well region.Type: GrantFiled: November 3, 2020Date of Patent: July 5, 2022Assignee: GLOBALFOUNDRIES Singapore Pte. Ltd.Inventors: Xinshu Cai, Yongshun Sun, Lanxiang Wang, Eng Huat Toh, Shyue Seng Tan
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Patent number: 11372061Abstract: A Hall effect sensor device may be provided, including one or more sensor structures. Each sensor structure may include: a base layer having a first conductivity type; a Hall plate region having a second conductivity type opposite from the first conductivity type arranged above the base layer; a first isolating region arranged around and adjoining the Hall plate region, and contacting the base layer; a plurality of second isolating regions arranged within the Hall plate region; and a plurality of terminal regions arranged within the Hall plate region. The first and second isolating regions may include electrically insulating material, and each neighboring pair of terminal regions may be electrically isolated from each other by one of the second isolating regions.Type: GrantFiled: March 13, 2020Date of Patent: June 28, 2022Assignee: GLOBALFOUNDRIES Singapore Pte. Ltd.Inventors: Yongshun Sun, Eng Huat Toh, Ping Zheng
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Publication number: 20220171001Abstract: A magnetic field sensor may include a semiconductor structure having a planar surface, and first, second, and third sensing devices. The semiconductor structure may include a semiconductor member having a two-dimensional electron gas therein, and an insulator member disposed on the semiconductor member. The first sensing device may be configured to sense magnetic field along a first axis parallel to the planar surface. The second sensing device may be configured to sense magnetic field along a second axis parallel to the planar surface, and orthogonal to the first axis. The third sensing device may be configured to sense a magnetic field along a third axis normal to the planar surface. Each of the first, second, and third sensing devices may be formed in the semiconductor structure and may include electrodes that extend from the insulator member to the two-dimensional electron gas.Type: ApplicationFiled: November 27, 2020Publication date: June 2, 2022Inventors: Ping ZHENG, Eng Huat TOH, Yongshun SUN