Patents Examined by Hsien Ming Lee
  • Patent number: 11972978
    Abstract: A method used in forming a conductive via of integrated circuitry comprises forming a lining laterally over sidewalls of an elevationally-elongated opening. The lining comprises elemental-form silicon. The elemental-form silicon of an uppermost portion of the lining is ion implanted in the elevationally-elongated opening. The ion-implanted elemental-form silicon of the uppermost portion of the lining is etched selectively relative to the elemental-form silicon of a lower portion of the lining below the uppermost portion that was not subjected to said ion implanting. The elemental-form silicon of the lower portion of the lining is reacted with a metal halide to form elemental-form metal in a lower portion of the elevationally-elongated opening that is the metal from the metal halide. Conductive material in the elevationally-elongated opening is formed atop and directly against the elemental-form metal. Other embodiments, including structure independent of method, are disclosed.
    Type: Grant
    Filed: May 4, 2022
    Date of Patent: April 30, 2024
    Assignee: Micron Technology, Inc.
    Inventors: Yiping Wang, Jordan D. Greenlee, Collin Howder
  • Patent number: 11974434
    Abstract: An integrated circuit device includes a plurality of conductive lines extending in a horizontal direction parallel to a main surface of a substrate and overlapping one another in a vertical direction vertical to the main surface, on the substrate, a plurality of insulation layers each between two adjacent conductive lines of the plurality of conductive lines to extend in the horizontal direction, a channel layer extending in the vertical direction in a channel hole passing through the plurality of conductive lines and the plurality of insulation layers, and a plurality of outer blocking dielectric layers between the plurality of conductive lines and the channel layer, in at least some of the plurality of conductive lines, wherein a width of each of the plurality of outer blocking dielectric layers in the horizontal direction increases toward the main surface.
    Type: Grant
    Filed: May 25, 2022
    Date of Patent: April 30, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sangyong Park, Hyunseok Na, Jaeduk Lee
  • Patent number: 11973026
    Abstract: A three-dimensional memory device includes an alternating stack of insulating layers and electrically conductive layers located over a substrate, memory openings located in a memory array region and vertically extending through the alternating stack, memory opening fill structures located in the memory openings, and laterally-isolated contact via assemblies located in a contact region. Each of the laterally-isolated contact via assemblies includes a contact via structure contacting a top surface of a respective one of the electrically conductive layers and an insulating spacer laterally surrounding the contact via structure and having an outer surface having a corrugated vertical cross-sectional profile in which first portions of the insulating spacer located at levels of the electrically conductive layers laterally protrude outward relative to second portions of the insulating spacer located at levels of the insulating layers.
    Type: Grant
    Filed: March 2, 2022
    Date of Patent: April 30, 2024
    Assignee: SANDISK TECHNOLOGIES LLC
    Inventors: Michiaki Sano, Koichi Ito
  • Patent number: 11963358
    Abstract: A semiconductor memory includes metallic lines on a substrate and including an uppermost metallic line, a semiconductor conduction line on the uppermost metallic line, a vertical structure penetrating the semiconductor conduction line and metallic lines, and including a vertical structure that includes an upper channel film, a first lower channel film, and an upper connection channel film connecting the upper channel film and the first lower channel film between a bottom of the semiconductor conduction line and a bottom of the uppermost metallic line, and a first cutting line through the metallic lines and the semiconductor conduction line, and including a first upper cutting line through the semiconductor conduction line, and a first lower cutting line through the plurality of metallic lines, a width of the first upper cutting line being greater than a width of an extension line of a sidewall of the first lower cutting line.
    Type: Grant
    Filed: February 1, 2023
    Date of Patent: April 16, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyo Joon Ryu, Young Hwan Son, Seo-Goo Kang, Jung Hoon Jun, Kohji Kanamori, Jee Hoon Han
  • Patent number: 11961801
    Abstract: Integrated circuitry comprises two three-dimensional (3D) array regions individually comprising tiers of electronic components. A stair-step region is between the two 3D-array regions. First stair-step structures alternate with second stair-step structures along a first direction within the stair-step region. The first stair-step structures individually comprise two opposing first flights of stairs in a first vertical cross-section along the first direction. The stairs in the first flights each have multiple different-depth treads in a second vertical cross-section that is along a second direction that is orthogonal to the first direction. The second stair-step structures individually comprise two opposing second flights of stairs in the first vertical cross-section. The stairs in the second flights each have only a single one tread along the second direction. Other embodiments, including method, are disclosed.
    Type: Grant
    Filed: July 12, 2021
    Date of Patent: April 16, 2024
    Assignee: Micron Technology, Inc.
    Inventors: Lifang Xu, Indra V. Chary, David H. Wells, Harsh Narendrakumar Jain, Umberto Maria Meotto, Paolo Tessariol
  • Patent number: 11961913
    Abstract: A semiconductor device structure is provided. The semiconductor device structure includes a source/drain feature on a semiconductor fin structure, a first isolation structure surrounding the semiconductor fin structure, source/drain spacers on the first isolation structure and surrounding a lower portion of the source/drain feature, a dielectric fin structure adjoining and in direct contact with the first isolation structure and one of the source/drain spacers, and an interlayer dielectric layer over the source/drain spacers and the dielectric fin structure and surrounding an upper portion of the source/drain feature.
    Type: Grant
    Filed: April 21, 2023
    Date of Patent: April 16, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Kuo-Cheng Chiang, Shi-Ning Ju, Ching-Wei Tsai, Kuan-Lun Cheng, Chih-Hao Wang
  • Patent number: 11963354
    Abstract: A three-dimensional memory device includes an alternating stack of insulating layers and electrically conductive layers, memory openings vertically extending through each layer of the alternating stack; memory opening fill structures located in the memory openings, and a perforated wall structure including lateral openings at levels of the insulating layers.
    Type: Grant
    Filed: September 7, 2021
    Date of Patent: April 16, 2024
    Assignee: SANDISK TECHNOLOGIES LLC
    Inventor: Tomohiro Kubo
  • Patent number: 11963344
    Abstract: A method of manufacturing an integrated circuit device includes: over a substrate, forming first hard mask patterns extending in a first direction parallel to a top surface of the substrate and arranged at a first pitch in a second direction; forming a plurality of first trenches in the substrate using the first hard mask patterns as etching masks; forming a plurality of first gate electrodes on inner walls of the plurality of first trenches; over the substrate, forming second hard mask patterns extending in the first direction and arranged at a second pitch in the second direction; forming a plurality of second trenches in the substrate using the second hard mask patterns as etching masks, each of the plurality of second trenches being disposed between two adjacent first trenches; and forming a plurality of second gate electrodes on inner walls of the plurality of second trenches.
    Type: Grant
    Filed: May 13, 2022
    Date of Patent: April 16, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jaybok Choi, Yongseok Ahn, Seunghyung Lee
  • Patent number: 11963352
    Abstract: A semiconductor structure includes at least one set of vertical field effect transistors embedded within dielectric material layers overlying a substrate. Each vertical field effect transistor includes a bottom electrode, a metal oxide semiconductor vertical transistor channel, a cylindrical gate dielectric, and a top electrode. A three-dimensional NAND memory array can be provided over the first field effect transistors, and can be electrically connected to the vertical field effect transistors via metal interconnect structures. Alternatively, a three-dimensional NAND memory array can be formed on another substrate, which can be bonded to the substrate via metal-to-metal bonding. The vertical field effect transistors can be employed as switches for bit lines, word lines, or other components of the three-dimensional NAND memory array.
    Type: Grant
    Filed: June 29, 2021
    Date of Patent: April 16, 2024
    Assignee: SANDISK TECHNOLOGIES LLC
    Inventors: Peter Rabkin, Masaaki Higashitani
  • Patent number: 11955386
    Abstract: This embodiment comprises: a step for preparing a sample wafer; a step for forming a first oxide film on the sample wafer at a temperature of 700-800° C.; a step for forming a second oxide film on the first oxide film at a temperature of 800-1000° C.; a step for forming a third oxide film on the second oxide film at a temperature of 1000-1100° C.; a step for forming a fourth oxide film on the third oxide film at a temperature of 1100-1200° C.; a step for removing the first to fourth oxide films; a step for forming a haze on the surface of the sample wafer by etching the sample wafer from which the first to fourth oxide films have been removed; and a step for evaluating a defective region of the sample wafer on the basis of the haze.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: April 9, 2024
    Assignee: SK Siltron Co., Ltd.
    Inventor: Jae Hyeong Lee
  • Patent number: 11955545
    Abstract: In one embodiment, a semiconductor device includes a substrate, and a first semiconductor layer provided on the substrate and including a first crystal grain. The device further includes a first film provided on a surface of the first semiconductor layer. The device further includes a second semiconductor layer provided on a surface of the first film, provided on the surface of the first semiconductor layer via an opening in the first film, including a second crystal grain, and included in a memory cell. Furthermore, a grain size of the second crystal grain is larger than a maximum value of a width of the second semiconductor layer in the opening.
    Type: Grant
    Filed: February 4, 2022
    Date of Patent: April 9, 2024
    Assignee: Kioxia Corporation
    Inventor: Tomonari Shioda
  • Patent number: 11955429
    Abstract: A method for manufacturing a three-dimensional memory device, comprises: forming, on a substrate, a sacrificial layer including a plurality of sacrificial patterns for vias and a sacrificial pattern for a row line; forming an interlayer dielectric layer that covers the sacrificial pattern for a row line and the sacrificial pattern for a via coupled to the sacrificial pattern for a row line and that has a plurality of holes exposing sacrificial patterns for vias, from among the plurality of sacrificial patterns for vias, that are not coupled to the sacrificial pattern for a row line; forming a plurality of first conductive patterns in the plurality of holes; repeating the forming of the sacrificial layer; and replacing the plurality of sacrificial layers with a conductive material.
    Type: Grant
    Filed: June 2, 2023
    Date of Patent: April 9, 2024
    Assignee: SK HYNIX INC.
    Inventors: Chan Ho Yoon, Jin Ho Kim
  • Patent number: 11942360
    Abstract: A semiconductor-on-insulator (e.g., silicon-on-insulator) structure having superior radio frequency device performance, and a method of preparing such a structure, is provided by utilizing a single crystal silicon handle wafer sliced from a float zone grown single crystal silicon ingot.
    Type: Grant
    Filed: March 13, 2023
    Date of Patent: March 26, 2024
    Assignee: GlobalWafers Co., Ltd.
    Inventors: Michael R. Seacrist, Robert W. Standley, Jeffrey L. Libbert, Hariprasad Sreedharamurthy, Leif Jensen
  • Patent number: 11943910
    Abstract: A manufacturing method of a semiconductor device includes forming an opening in a substrate, implanting a dopant in the substrate from a sidewall of the opening such that a doping region is formed in the substrate at the sidewall of the opening, filling a dielectric material in the opening to form a first dielectric structure after implanting the dopant in the substrate from the sidewall of the opening, and forming a passing word line in the dielectric structure.
    Type: Grant
    Filed: December 30, 2021
    Date of Patent: March 26, 2024
    Assignee: NANYA TECHNOLOGY CORPORATION
    Inventor: Chung-Lin Huang
  • Patent number: 11933485
    Abstract: A hermetically sealed LED light is provided that includes a ceramic base with a plurality of LEDs and a metal cap soldered thereto and a channel for introducing an electrical, optical, or mechanical component.
    Type: Grant
    Filed: November 24, 2020
    Date of Patent: March 19, 2024
    Assignee: SCHOTT AG
    Inventors: Frank Gindele, Christian Rakobrandt
  • Patent number: 11935792
    Abstract: A method for fabricating a semiconductor device includes forming a trench in a substrate, forming a gate dielectric layer on a surface of the trench, forming a lower gate, which partially fills the trench, over the gate dielectric layer, forming a low work function layer over the lower gate, forming a spacer over the low work function layer, etching the low work function layer to be self-aligned with the spacer in order to form vertical gate on both upper edges of the lower gate, and forming an upper gate over the lower gate between inner sidewalls of the vertical gate.
    Type: Grant
    Filed: May 12, 2023
    Date of Patent: March 19, 2024
    Assignee: SK hynix Inc.
    Inventors: Dong-Soo Kim, Se-Han Kwon
  • Patent number: 11937430
    Abstract: Some embodiments include an integrated assembly having a first deck, a second deck over the first deck, and a third deck over the second deck. The first deck has first conductive levels disposed one atop another. The second deck has second conductive levels disposed one atop another. The third deck has third conductive levels disposed one atop another. A first staircase region extends to the first and second conductive levels, and passes through the third conductive levels. A second staircase region extends to the third conductive levels and not to the first and second conductive levels. Some embodiments include methods of forming integrated assemblies.
    Type: Grant
    Filed: June 15, 2022
    Date of Patent: March 19, 2024
    Inventors: Shuangqiang Luo, Indra V. Chary
  • Patent number: 11929212
    Abstract: Embodiments disclosed herein include an electronic package and methods of forming an electronic package. In an embodiment, the electronic package comprises a package substrate, an organic layer over the package substrate, and a capacitor embedded in the organic layer. In an embodiment, the capacitor comprises, a first electrode, where the first electrode comprises a seam between a first conductive layer and a second conductive layer, a dielectric layer over the first electrode, and a second electrode over the dielectric layer.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: March 12, 2024
    Assignee: Intel Corporation
    Inventors: Sameer Paital, Gang Duan, Srinivas Pietambaram, Kristof Darmawikarta
  • Patent number: 11923236
    Abstract: A method for forming a semiconductor structure comprising a silicon-on-insulator layer structure with crystalline silicon oxide SiOx as the insulator material comprises: providing a crystalline silicon substrate having a substantially clean deposition surface in a vacuum chamber; heating the silicon substrate to an oxidation temperature To in the range of 550 to 1200 ° C.; supplying, while keeping the silicon substrate in the oxidation temperature, with an oxidation pressure Po in the range of 1·10?8 to 1·10?4 mbar in the vacuum chamber, molecular oxygen O2 into the vacuum chamber with an oxygen dose Do in the range of 0.1 to 1000 Langmuir; whereby a crystalline silicon oxide layer with a thickness of at least two molecular layers is formed within the silicon substrate, between a crystalline silicon base layer and a crystalline silicon top layer. Related semiconductor structures are described.
    Type: Grant
    Filed: September 12, 2022
    Date of Patent: March 5, 2024
    Assignee: TURUN YLIOPISTO
    Inventors: Pekka Laukkanen, Mikhail Kuzmin, Jaakko Mäkelä, Marjukka Tuominen, Marko Punkkinen, Antti Lahti, Kalevi Kokko, Juha-Pekka Lehtiö
  • Patent number: 11923239
    Abstract: Substrates for microelectronic radiofrequency devices may include a substrate comprising a semiconductor material. Trenches may be located in an upper surface of the substrate, at least some of the trenches including a filler material located within the respective trench. A resistivity of the filler material may be 10 kOhms·cm or greater. A piezoelectric material may be located on or above the upper surface of the substrate. Methods of making substrates for microelectronic radiofrequency devices may involve forming trenches in an upper surface of a substrate including a semiconductor material. A filler material may be placed in at least some of the trenches, and a piezoelectric material may be placed on or above the upper surface of the substrate.
    Type: Grant
    Filed: May 18, 2022
    Date of Patent: March 5, 2024
    Assignee: Soitec
    Inventors: Eric Desbonnets, Ionut Radu, Oleg Kononchuk, Jean-Pierre Raskin