Patents Examined by Amar Movva
  • Patent number: 11930653
    Abstract: A light-emitting device with high emission efficiency and reliability is provided. The light-emitting device includes a fluorescent light-emitting layer and a phosphorescent light-emitting layer. A host material used in the fluorescent light-emitting layer has a function of converting triplet excitation energy into light emission and a guest material used in the fluorescent light-emitting layer emits fluorescence. The guest material has a molecular structure including a luminophore and a protecting group, and one molecule of the guest material includes five or more protecting groups. The introduction of the protecting groups into the molecule inhibits transfer of triplet excitation energy from the host material to the guest material by the Dexter mechanism. An alkyl group or a branched-chain alkyl group is used as the protecting group.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: March 12, 2024
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Takahiro Ishisone, Nobuharu Ohsawa, Satoshi Seo
  • Patent number: 11930645
    Abstract: The present disclosure provides a semiconductor structure. The semiconductor structure includes a substrate, a transistor region, a first and a second contact plug, a first metal via, a magnetic tunneling junction (MTJ) structure, and a metal interconnect. The transistor region includes a gate over the substrate, and a first and a second doped regions at least partially in the substrate. The first and the second contact plug are over the transistor region. The first and the second contact plug include a coplanar upper surface. The first metal via and the MTJ structure are over the first and the second contact plug, respectively. The first metal via is leveled with the MTJ structure. The metal interconnect is over the first metal via and the MTJ structure, and the metal interconnect includes at least two second metal vias in contact with the first metal via and the MTJ structure, respectively.
    Type: Grant
    Filed: March 5, 2023
    Date of Patent: March 12, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
    Inventors: Alexander Kalnitsky, Harry-Hak-Lay Chuang, Sheng-Haung Huang, Tien-Wei Chiang
  • Patent number: 11929365
    Abstract: A semiconductor device includes a semiconductor layer that has a first main surface at one side and a second main surface at another side and includes an active region, a plurality of IGBT regions that are formed in the active region, and a plurality of diode regions that are formed in the active region such as to be adjacent to the plurality of IGBT regions, and where when a total extension of boundary lines between the plurality of IGBT regions and the plurality of diode regions is represented by L, a total area of the plurality of diode regions is represented by SD, and a dispersion degree of the plurality of diode regions with respect to the active region is defined by a formula Loge (L2/SD), the dispersion degree is not less than 2 and not more than 15.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: March 12, 2024
    Assignee: ROHM CO., LTD.
    Inventor: Shinya Umeki
  • Patent number: 11925029
    Abstract: A semiconductor device includes a semiconductor substrate on which a first insulation film is provided. A first conductive film is on the first insulation film. First electrode films are on the first conductive film and stacked. A charge accumulation member is between one of the first electrode films and the semiconductor member. The first conductive film includes a main body arranged below the first electrode films and an outer peripheral portion provided in an outer periphery of the main body to be apart from the main body. First and second slits are alternately provided in the outer peripheral portion, and extend along the outer periphery of the main body. The first and second slits are apart from each other as viewed in the stacking direction, and partly overlap each other as viewed in a first direction directed from the main body toward the outer peripheral portion.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: March 5, 2024
    Assignee: Kioxia Corporation
    Inventors: Takamasa Ito, Hiroshi Matsumoto
  • Patent number: 11925025
    Abstract: An occupied area of the switch circuit electrically connected to a memory cell is reduced to reduce the size of a semiconductor device. A semiconductor device according to an embodiment includes a memory cell on a semiconductor substrate and a semiconductor chip in which a switch circuit electrically connected to the memory cell is formed, wherein the switch circuit includes a second transistor electrically connected to the memory cell, and the second transistor includes a second word gate formed on the semiconductor substrate through a third gate insulating film, and a second coupling gate formed on the semiconductor substrate through a fourth gate insulating film having a thickness greater than that of the third gate insulating film, wherein a voltage higher than a voltage applied to the second word gate is applied to the second coupling gate of the second transistor when a current is applied to the memory cell.
    Type: Grant
    Filed: November 11, 2020
    Date of Patent: March 5, 2024
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventor: Junichi Suzuki
  • Patent number: 11915928
    Abstract: A semiconductor memory device includes a first conductive layer, a semiconductor layer extending in a first direction and being opposed to the first conductive layer, and a gate insulating film disposed between the first conductive layer and the semiconductor layer. The first conductive layer includes a first region, a second region disposed between the first region and the gate insulating film, and a third region disposed between the first region and the first interlayer insulating layer. The first to the third regions contain a metal. The third region contains silicon (Si). The first region does not contain silicon (Si) or has a lower silicon (Si) content than a silicon (Si) content in the third region. The second region does not contain silicon (Si) or has a lower silicon (Si) content than the silicon (Si) content in the third region.
    Type: Grant
    Filed: September 10, 2021
    Date of Patent: February 27, 2024
    Assignee: Kioxia Corporation
    Inventors: Masahiro Koike, Masao Shingu, Masaya Ichikawa
  • Patent number: 11916121
    Abstract: A semiconductor device includes a metal oxide semiconductor channel layer, a first gate dielectric layer contacting a first portion of a major surface of the metal oxide semiconductor channel layer, a first gate electrode overlying the first gate dielectric layer and contacting a second portion of the major surface of the metal oxide semiconductor channel layer, a drain region and a backside gate dielectric layer contacting another major surface of the metal oxide semiconductor channel layer, a backside gate electrode contacting the backside gate dielectric layer, a second gate dielectric layer contacting an end surface of the metal oxide semiconductor channel layer, a second gate electrode contacting a surface of the second gate dielectric layer, and a source region contacting another end surface of the metal oxide semiconductor channel layer.
    Type: Grant
    Filed: April 13, 2021
    Date of Patent: February 27, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company Limited
    Inventors: Katherine H. Chiang, Chung-Te Lin
  • Patent number: 11910600
    Abstract: A three-dimensional nonvolatile memory device includes: a substrate including a cell area and an extension area having a staircase structure; a vertical structure on the substrate; a stacking structure having electrode layers and interlayer insulating layers on the substrate; a separation insulating layer on the substrate and separating the electrode layers; and a through-via wiring area adjacent to the cell or extension area and having through-vias passing through the substrate, wherein the cell area includes a main cell area in which normal cells are arranged and an edge cell area, the separation insulating layer includes a main separation insulating layer in the main cell area and an edge separation insulating layer in the edge cell area, and a lower surface of the main separation insulating layer is higher than the upper surface of the substrate and has a different depth than a lower surface of the edge separation insulating layer.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: February 20, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seonghun Jeong, Byoungil Lee, Bosuk Kang
  • Patent number: 11903218
    Abstract: At least a portion of a memory cell is formed over a first substrate and at least a portion of a steering element or word or bit line of the memory cell is formed over a second substrate. The at least a portion of the memory cell is bonded to at least a portion of a steering element or word or bit line. At least one of the first or second substrate may be removed after the bonding.
    Type: Grant
    Filed: June 26, 2020
    Date of Patent: February 13, 2024
    Assignee: SANDISK TECHNOLOGIES LLC
    Inventors: Raghuveer S. Makala, Johann Alsmeier
  • Patent number: 11900214
    Abstract: Methods and apparatus for enhancing simulated annealing with quantum fluctuations. In one aspect, a method includes obtaining an input state; performing simulated annealing on the input state with a temperature reduction schedule until a decrease in energy is below a first minimum value; terminating the simulated annealing in response to determining that the decrease in energy is below the first minimum level; outputting a first evolved state and first temperature value; reducing the temperature to a minimum temperature value; performing quantum annealing on the first evolved state with a transversal field increase schedule until a completion of a second event occurs; terminating the quantum annealing in response to determining that a completion of the second event has occurred; outputting a second evolved state as a subsequent input state for the simulated annealing, and determining that the completion of the first event has occurred.
    Type: Grant
    Filed: August 4, 2021
    Date of Patent: February 13, 2024
    Inventor: Hartmut Neven
  • Patent number: 11894410
    Abstract: Some embodiments relate an integrated circuit (IC) including a first substrate including a plurality of imaging devices. A second substrate is disposed under the first substrate and includes a plurality of logic devices. A first interconnect structure is disposed between the first substrate and the second substrate and electrically couples imaging devices within the first substrate to one another. A second interconnect structure is disposed between the first interconnect structure and the second substrate, and electrically couples logic devices within the second substrate to one another. A bond pad structure is coupled to a metal layer of the second interconnect structure and extends along inner sidewalls of both the first interconnect structure and the second interconnect structure. An oxide layer extends from above the first substrate to below a plurality of metal layers of the first interconnect structure, and lines inner sidewalls of the bond pad structure.
    Type: Grant
    Filed: February 1, 2022
    Date of Patent: February 6, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Sin-Yao Huang, Ching-Chun Wang, Dun-Nian Yaung, Feng-Chi Hung, Ming-Tsong Wang, Shih Pei Chou
  • Patent number: 11895840
    Abstract: A memory device includes a lower structure and a plurality of upper structures stacked on the lower structure. The lower structure includes a peripheral circuit, and an upper bonding pad disposed on a top surface of the lower structure. Each of the plurality of upper structures includes a bit line, a through via, and a lower bonding pad disposed on a bottom surface of the upper structures and connected to the through via. Each of upper structures, other than an uppermost upper structure, further includes an upper bonding pad disposed on a top surface thereof and connected to the through via. The bit line includes a gap separating a first portion of the bit line from a second portion thereof in the horizontal direction, and the through via overlaps the gap of the bit line in a plan view.
    Type: Grant
    Filed: August 25, 2022
    Date of Patent: February 6, 2024
    Inventors: Woosung Yang, Byungjin Lee, Bumkyu Kang, Joonsung Lim
  • Patent number: 11889684
    Abstract: A three-dimensional memory device includes an alternating stack of insulating layers and electrically conductive layers located over at least one source layer, and groups of memory opening fill structures vertically extending through the alternating stack. Each memory opening fill structure can include a vertical stack of memory elements and a vertical semiconductor channel. A plurality of source-side select gate electrodes can be laterally spaced apart by source-select-level dielectric isolation structures. Alternatively or additionally, the at least one source layer may include a plurality of source layers. A group of memory opening fill structures can be selected by selecting a source layer and/or by selecting a source-level electrically conductive layer.
    Type: Grant
    Filed: November 18, 2020
    Date of Patent: January 30, 2024
    Assignee: SANDISK TECHNOLOGIES LLC
    Inventors: Masanori Tsutsumi, Shinsuke Yada, Mitsuteru Mushiga, Akio Nishida, Hiroyuki Ogawa, Teruo Okina
  • Patent number: 11877519
    Abstract: A semiconductor device manufacturing method, wherein the etching apparatus used includes a sample loading chamber (15), a vacuum transition chamber (14), a reactive ion plasma etching chamber (10), an ion beam etching chamber (11), a film coating chamber (12), and a vacuum transport chamber (13). Without interrupting the vacuum, reactive ion etching is first adopted to etch to an isolation layer (102); then, ion beam etching is performed to etch into a fixed layer (101) and stopped near a bottom electrode metal layer (100), leaving only a small amount of the fixed layer (101); subsequently, reactive ion etching is adopted to etch to the bottom electrode metal layer (100); and finally, ion beam cleaning is performed to remove metal residues and sample surface treatment, and coating protection is performed.
    Type: Grant
    Filed: May 23, 2019
    Date of Patent: January 16, 2024
    Assignee: JIANGSU LEUVEN INSTRUMENTS CO. LTD
    Inventors: Zhongyuan Jiang, Ziming Liu, Juebin Wang, Dongchen Che, Hushan Cui, Dongdong Hu, Lu Chen, Huiqun Ren, Zhiwen Zou, Kaidong Xu
  • Patent number: 11876041
    Abstract: In some embodiments, a semiconductor device includes a semiconductor die including a vertical transistor device having a source electrode, a drain electrode and a gate electrode, the semiconductor die having a first surface and a metallization structure. The metallization structure includes a first conductive layer above the first surface, a first insulating layer above the first conductive layer, a second conductive layer above the first insulating layer, a second insulating layer above the second conductive layer and a third conductive layer above the second insulting layer. The third conductive layer includes at least one source pad electrically coupled to the source electrode, at least one drain pad electrically coupled to the drain electrode and at least one gate pad electrically coupled to the gate electrode.
    Type: Grant
    Filed: December 20, 2021
    Date of Patent: January 16, 2024
    Assignee: Infineon Technologies Austria AG
    Inventors: Oliver Blank, Gerhard Noebauer
  • Patent number: 11869865
    Abstract: A semiconductor device includes: a carrier having a die pad and a contact; a semiconductor die having opposing first and second main sides and being attached to the die pad by a first solder joint such that the second main side faces the die pad; and a contact clip having a first contact region and a second contact region. The first contact is attached to the first main side by a second solder joint. The second contact region is attached to the contact by a third solder joint. The first contact region has a convex shape facing towards the first main side such that a distance between the first main side and the first contact region increases from a base of the convex shape towards an edge of the first contact region. The base runs along a line that is substantially perpendicular to a longitudinal axis of the contact clip.
    Type: Grant
    Filed: July 30, 2021
    Date of Patent: January 9, 2024
    Assignee: Infineon Technologies AG
    Inventors: Thomas Bemmerl, Chooi Mei Chong, Edward Myers, Michael Stadler
  • Patent number: 11869800
    Abstract: A method for fabricating a semiconductor device includes receiving a silicon substrate having an isolation feature disposed on the substrate and a well adjacent the isolation feature, wherein the well includes a first dopant. The method also includes etching a recess to remove a portion of the well and epitaxially growing a silicon layer (EPI layer) in the recess to form a channel, wherein the channel includes a second dopant. The method also includes forming a barrier layer between the well and the EPI layer, the barrier layer including at least one of either silicon carbon or silicon oxide. The barrier layer can be formed either before or after the channel. The method further includes forming a gate electrode disposed over the channel and forming a source and drain in the well.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: January 9, 2024
    Inventors: Harry-Hak-Lay Chuang, Bao-Ru Young, Wei Cheng Wu, Meng-Fang Hsu, Kong-Pin Chang, Chia Ming Liang
  • Patent number: 11862626
    Abstract: An apparatus for providing electrostatic discharge (ESD) immunity and a method for fabricating the same are disclosed herein. The apparatus comprises a field effect transistor (FET) formed on a semiconductor substrate in a front-end-of-line (FEOL) layer during an FEOL process, a metal interconnect layer formed on top of the FEOL layer during a back-end-of-line (BEOL) process, wherein the metal interconnect layer comprises a plurality interconnects configured to interconnect the FET to a plurality of components formed on the semiconductor substrate, a power delivery network (PDN) formed under the semiconductor substrate in a backside layer during a backside back-end-of-line (B-BEOL) process, and a through substrate resistive component formed between the FEOL and B-BEOL layers, wherein a first contact of the through substrate resistive component is connected to a drain terminal of the FET and second contact is connected, through the PDN, to a power supply rail.
    Type: Grant
    Filed: March 3, 2021
    Date of Patent: January 2, 2024
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventor: Yu-Hung Yeh
  • Patent number: 11862728
    Abstract: Disclosed herein are dual gate trench shaped thin film transistors and related methods and devices. Exemplary thin film transistor structures include a non-planar semiconductor material layer having a first portion extending laterally over a first gate dielectric layer, which is over a first gate electrode structure, and a second portion extending along a trench over the first gate dielectric layer, a second gate electrode structure at least partially within the trench, and a second gate dielectric layer between the second gate electrode structure and the first portion.
    Type: Grant
    Filed: October 1, 2021
    Date of Patent: January 2, 2024
    Assignee: Intel Corporation
    Inventors: Abhishek A. Sharma, Van H. Le, Gilbert Dewey, Jack T. Kavalieros, Shriram Shivaraman, Benjamin Chu-Kung, Yih Wang, Tahir Ghani
  • Patent number: 11856778
    Abstract: A semiconductor memory device includes; a lower stacked structure including lower metallic lines stacked in a first direction on a substrate, an upper stacked structure including a first upper metallic line and a second upper metallic line sequentially stacked on the lower stacked structure, a vertical structure penetrating the upper stacked structure and lower stacked structure and including a channel film, a connection pad disposed on the vertical structure, contacted with the channel film and doped with N-type impurities, a first cutting line cutting the lower metallic lines, the first upper metallic line and the second upper metallic line, a second cutting line spaced apart from the first cutting line in a second direction different from the first direction, and cutting the lower metallic lines, the first upper metallic line and the second upper metallic line, and sub-cutting lines cutting the first upper metallic line and the second upper metallic line between the first cutting line and the second cuttin
    Type: Grant
    Filed: November 8, 2022
    Date of Patent: December 26, 2023
    Inventors: Kohji Kanamori, Jee Hoon Han, Seo-Goo Kang, Hyo Joon Ryu