Patents Examined by Allison Bernstein
  • Patent number: 11367733
    Abstract: A memory die includes an alternating stack of insulating layers and electrically conductive layers located between a drain-side dielectric layer and a source-side dielectric layer. Memory openings vertically extend through the alternating stack. Each of the memory openings has a greater lateral dimension an interface with the source-side dielectric layer than at an interface with the drain-side dielectric layer. Memory opening fill structures are located in the memory openings. Each of the memory opening fill structures includes a vertical semiconductor channel, a vertical stack of memory elements, and a drain region. A logic die may be bonded to a source-side dielectric layer side of the memory die.
    Type: Grant
    Filed: December 7, 2020
    Date of Patent: June 21, 2022
    Assignee: SANDISK TECHNOLOGIES LLC
    Inventors: Naohiro Hosoda, Masanori Tsutsumi, Kota Funayama
  • Patent number: 11362141
    Abstract: A variable resistance memory device includes lower conductive lines on a substrate, upper conductive lines on the lower conductive lines to cross the lower conductive lines, and memory cells between the lower conductive lines and the upper conductive lines. The lower conductive lines are extended in a first direction and are spaced apart from each other in a second direction crossing the first direction. Each of the lower conductive lines include a first line portion extended in the first direction, a second line portion offset from the first line portion in the second direction and extended in the first direction, and a connecting portion connecting the first line portion to the second line portion.
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: June 14, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Taehong Ha, Jaerok Kahng
  • Patent number: 11362099
    Abstract: A non-volatile memory device includes a substrate, a stacked structure, an anti-fuse gate, a gate dielectric layer, a first doping region, and a second doping region. The stacked structure is formed on the substrate and includes a floating gate, a select logic gate, a logic gate dielectric layer, and an inter-polysilicon layer dielectric layer. The select logic gate is disposed on the floating gate, the logic gate dielectric layer is disposed between the floating gate and the substrate, and the inter-polysilicon layer dielectric layer is disposed between the floating gate and the select logic gate. The anti-fuse gate is disposed on the substrate, and the gate dielectric layer is disposed between the anti-fuse gate and the substrate. The first doping region is formed in the substrate at one side of the floating gate. The second doping region is formed in the substrate between the floating gate and the anti-fuse gate.
    Type: Grant
    Filed: May 8, 2020
    Date of Patent: June 14, 2022
    Assignee: Powerchip Semiconductor Manufacturing Corporation
    Inventors: Ching-Hua Chen, Bing-Chen Ji, Shun-Tsung Yu, Ming-Yuan Lin, Han-Chao Lai, Jih-Wen Chou, Chen-Chiu Hsue
  • Patent number: 11362140
    Abstract: Integrated circuits including 3D memory structures are disclosed. Air-gaps are purposefully introduced between word lines. The word lines may be horizontal or vertical.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: June 14, 2022
    Assignee: Intel Corporation
    Inventors: Prashant Majhi, Brian Doyle, Ravi Pillarisetty, Abhishek Sharma, Elijah V. Karpov
  • Patent number: 11348931
    Abstract: A nonvolatile memory device includes a cell array formed on a substrate, and a control gate pickup structure, wherein the cell array comprises floating gates, and a control gate surrounding the floating gates, wherein the control gate pickup structure comprises a floating gate polysilicon layer, a control gate polysilicon layer surrounding the floating gate polysilicon layer and connected to the control gate, and at least one contact plug formed on the control gate polysilicon layer.
    Type: Grant
    Filed: January 7, 2020
    Date of Patent: May 31, 2022
    Assignee: KEY FOUNDRY CO., LTD.
    Inventors: Min Kuck Cho, Seung Hoon Lee
  • Patent number: 11349072
    Abstract: A resistive memory structure, for example, phase change memory structure, includes one access device and two or more resistive memory cells. Each memory cell is coupled to a rectifying device to prevent parallel leak current from flowing through non-selected memory cells. In an array of resistive memory bit structures, resistive memory cells from different memory bit structures are stacked and share rectifying devices.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: May 31, 2022
    Assignee: OVONYX MEMORY TECHNOLOGY, LLC
    Inventors: Jun Liu, Michael P. Violette
  • Patent number: 11349067
    Abstract: A storage element includes a storage layer, a fixed magnetization layer, a spin barrier layer, and a spin absorption layer. The storage layer stores information based on a magnetization state of a magnetic material. The fixed magnetization layer is provided for the storage layer through a tunnel insulating layer. The spin barrier layer suppresses diffusion of spin-polarized electrons and is provided on the side of the storage layer opposite the fixed magnetization layer. The spin absorption layer is formed of a nonmagnetic metal layer causing spin pumping and provided on the side of the spin barrier layer opposite the storage layer. A direction of magnetization in the storage layer is changed by passing current in a layering direction to inject spin-polarized electrons so that information is recorded in the storage layer and the spin barrier layer includes at least a material selected from oxides, nitrides, and fluorides.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: May 31, 2022
    Assignee: Sony Corporation
    Inventors: Yutaka Higo, Masanori Hosomi, Hiroyuki Ohmori, Tetsuya Yamamoto, Kazutaka Yamane, Yuki Oishi, Hiroshi Kano
  • Patent number: 11348972
    Abstract: A semiconductor structure and a method for manufacturing a semiconductor structure are provided. The semiconductor structure includes a substrate; a first transistor, including a first channel region located in the substrate; a second transistor, including a second channel region located in the substrate, the second channel region having an area different from an area of the first channel region, and the first transistor and the second transistor having a common source or a common drain; and a memory cell, connected to the common source or the common drain.
    Type: Grant
    Filed: January 18, 2022
    Date of Patent: May 31, 2022
    Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
    Inventors: Baolei Wu, Xiaoguang Wang
  • Patent number: 11348973
    Abstract: Embodiments include a threshold switching selector. The threshold switching selector may include a threshold switching layer and a semiconductor layer between two electrodes. A memory cell may include the threshold switching selector coupled to a storage cell. The storage cell may be a PCRAM storage cell, a MRAM storage cell, or a RRAM storage cell. In addition, a RRAM device may include a RRAM storage cell, coupled to a threshold switching selector, where the threshold switching selector may include a threshold switching layer and a semiconductor layer, and the semiconductor layer of the threshold switching selector may be shared with the semiconductor layer of the RRAM storage cell.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: May 31, 2022
    Assignee: Intel Corporation
    Inventors: Abhishek A. Sharma, Van H. Le, Gilbert Dewey, Rafael Rios, Jack T. Kavalieros, Shriram Shivaraman
  • Patent number: 11348939
    Abstract: Some embodiments include an integrated structure having a stack of memory cell levels. A pair of channel-material-pillars extend through the stack. A source structure is under the stack. The source structure includes a portion having an upper region, a lower region, and an intermediate region between the upper and lower regions. The upper and lower regions have a same composition and join to one another at edge locations. The intermediate region has a different composition than the upper and lower regions. The edge locations are directly against the channel material of the channel-material-pillars. Some embodiments include methods of forming an integrated assembly.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: May 31, 2022
    Assignee: Micron Technology, Inc.
    Inventors: Collin Howder, Gordon A. Haller
  • Patent number: 11342337
    Abstract: A semiconductor device includes first and second SRAM cells in a region of the semiconductor device. The first and second SRAM cells include FinFET transistors comprising gate features engaging fin active lines. Each of the first and second SRAM cells includes at least one gate feature overlapping with three or more fin active lines. Each of the first and second SRAM cells includes at least one fin active line over a first P-well adjacent one side of an N-well, and at least one fin active line over a second P-well adjacent another side of the N-well. The first and second SRAM cells share all the fin active lines over the first and second P-wells.
    Type: Grant
    Filed: April 5, 2021
    Date of Patent: May 24, 2022
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventor: Jhon Jhy Liaw
  • Patent number: 11329222
    Abstract: A resistive random access memory (RRAM) and its manufacturing method are provided. The RRAM includes a substrate having an array region and a peripheral region. A plurality of memory cells and a gap-filling dielectric layer overlying the memory cells are located on the substrate and in the array region. A buffer layer only in the array region covers the gap-filling dielectric layer, and its material layer is different from that of the gap-filling dielectric layer. A first low-k dielectric layer is only located in the peripheral region, and its material is different from that of the buffer layer. A dielectric constant of the first low-k dielectric layer is less than 3. A top surface of the first low-k dielectric layer is coplanar with that of the buffer layer. A first conductive plug passes through the buffer layer and the gap-filling dielectric layer and contacts one of the memory cells.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: May 10, 2022
    Assignee: Winbond Electronics Corp.
    Inventors: Po-Yen Hsu, Bo-Lun Wu, Ting-Ying Shen
  • Patent number: 11329223
    Abstract: A nonvolatile memory apparatus includes a first electrode, a second electrode separated from the first electrode, a resistive-change material layer provided between the first electrode and the second electrode and configured to store information due to a resistance change caused by an electrical signal applied through the first electrode and the second electrode, and a diffusion prevention layer provided between the first electrode and the resistive-change material layer and/or between the second electrode and the resistive-change material layer and including a two-dimensional (2D) material having a monolayer thickness of about 0.35 nm or less.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: May 10, 2022
    Assignees: Samsung Electronics Co., Ltd., Seoul National University R&DB Foundation
    Inventors: Minhyun Lee, Seongjun Park, Hyunjae Song, Hyeonjin Shin, Kibum Kim, Sanghun Lee, Yunho Kang
  • Patent number: 11328765
    Abstract: A memory cell comprising includes a silicon-on-insulator (SOI) substrate, an electrically floating body transistor fabricated on the silicon-on-insulator (SOI) substrate, and a charge injector region. The floating body transistor is configured to have more than one stable state through an application of a bias on the charge injector region.
    Type: Grant
    Filed: January 28, 2021
    Date of Patent: May 10, 2022
    Assignee: Zeno Semiconductor, Inc.
    Inventors: Jin-Woo Han, Yuniarto Widjaja
  • Patent number: 11316105
    Abstract: A phase change material switch includes a phase change layer disposed on a metal liner. A gate dielectric layer is disposed on the phase change layer. A metal gate liner is disposed on the gate dielectric layer.
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: April 26, 2022
    Assignee: International Business Machines Corporation
    Inventors: Tian Shen, Ruilong Xie, Kevin W. Brew, Heng Wu, Jingyun Zhang
  • Patent number: 11305365
    Abstract: Provided are a logic switching device and a method of manufacturing the same. The logic switching device may include a domain switching layer adjacent to a gate electrode. The domain switching layer may include a ferroelectric material region and an anti-ferroelectric material region. The domain switching layer may be a non-memory element. The logic switching device may include a channel, a source and a drain both connected to the channel, the gate electrode arranged to face the channel, and the domain switching layer provided between the channel and the gate electrode.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: April 19, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jinseong Heo, Yunseong Lee, Sanghyun Jo
  • Patent number: 11302714
    Abstract: A three-dimensional memory device includes a source contact layer overlying a substrate, an alternating stack of insulating layers and electrically conductive layers located overlying the source contact layer, and a memory opening fill structure located within a memory opening extending through the alternating stack and the source contact layer. The memory opening fill structure includes a composite semiconductor channel and a memory film laterally surrounding the composite semiconductor channel. The composite semiconductor channel includes a pedestal channel portion having controlled distribution of n-type dopants that diffuse from the source contact layer with a lower diffusion rate provided by carbon doping and smaller grain sizes, or has arsenic doping providing limited diffusion into the vertical semiconductor channel.
    Type: Grant
    Filed: August 5, 2020
    Date of Patent: April 12, 2022
    Assignee: SANDISK TECHNOLOGIES LLC
    Inventors: Zhixin Cui, Satoshi Shimizu, Yanli Zhang
  • Patent number: 11296114
    Abstract: A semiconductor memory device includes a connecting member including a semiconductor material, a first electrode film, a first insulating film, a stacked body and three or more semiconductor pillars. The stacked body includes second electrode films and second insulating films that alternately stacked. The semiconductor pillars are arrayed along two or more directions, extend in a stacking direction, pierce through the stacked body and the first insulating film, and are connected to the connecting member. The device includes a third insulating film provided between the semiconductor pillars and the stacked body and between the connecting member and the first electrode film. A charge storage layer is provided at least between one of the second electrode films and the third insulating film.
    Type: Grant
    Filed: June 1, 2021
    Date of Patent: April 5, 2022
    Assignee: Kioxia Corporation
    Inventors: Yoshiaki Fukuzumi, Shinya Arai, Masaki Tsuji, Hideaki Aochi, Hiroyasu Tanaka
  • Patent number: 11296115
    Abstract: A 3D device, the device including: a first level including logic circuits; a second level including a plurality of memory circuits, where the first level is bonded to the second level, where the bonded includes oxide to oxide bonds, and where the device includes first redundancy circuits to replace a faulty logic circuit and a second redundancy circuit to replace a faulty memory circuit.
    Type: Grant
    Filed: November 11, 2021
    Date of Patent: April 5, 2022
    Assignee: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Jin-Woo Han
  • Patent number: 11289497
    Abstract: Approaches for integrating FE memory arrays into a processor, and the resulting structures are described. Simultaneous integrations of regions with ferroelectric (FE) cells and regions with standard interconnects are also described. FE cells include FE capacitors that include a FE stack of layers, which is encapsulated with a protection material. The protection material protects the FE stack of layers as structures for regular logic are fabricated in the same die.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: March 29, 2022
    Assignee: Kepler Computing Inc.
    Inventors: Gaurav Thareja, Sasikanth Manipatruni, Rajeev Kumar Dokania, Ramamoorthy Ramesh, Amrita Mathuriya