Patents by Inventor Takashi Ando

Takashi Ando 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: 20230108998
    Abstract: A physical unclonable function device includes alternating regions of programable material and electrically conductive regions. The regions of programable material are configured to switch resistance upon receiving an electric pulse. An electric pulse applied between two outer electrically conductive regions of the alternating regions will switch the resistance of at least one region of programmable material. The alternating regions may include a plurality of the electrically conducting regions and a region of the programable material disposed between each of the plurality of electrically conductive regions. The resistance of each of the regions of programable material is selectively variable in at least a portion thereof as a result of the electric pulse flowing therethrough. The resistance value of the programable material region may be a readable value as a state of the device. The regions of programmable material may be formed of a phase change material or an oxide.
    Type: Application
    Filed: October 4, 2021
    Publication date: April 6, 2023
    Inventors: Guy M. Cohen, Takashi Ando, Nanbo Gong, Franco Stellari
  • Publication number: 20230109660
    Abstract: Embodiments of the invention are directed to a structure that includes a resistive switching device (RSD). The RSD includes a first terminal having an outer sidewall surface; a second terminal; an active region having a switchable conduction state; and a first protective layer on the outer sidewall surface of the first terminal.
    Type: Application
    Filed: September 24, 2021
    Publication date: April 6, 2023
    Inventors: Takashi Ando, Ruilong Xie, Alexander Reznicek, Pouya Hashemi
  • Publication number: 20230097904
    Abstract: A method of manufacturing a low program voltage flash memory cell with an embedded heater in the control gate creates, on a common device substrate, a conventional flash memory cell in a conventional flash memory area (CFMA), and a neuromorphic computing memory cell in a neuromorphic computing memory area (NCMA). The method comprises providing a flash memory stack in both the CFMA and the NCMA, depositing a heater on top of the flash memory stack in the NCMA without depositing a heater on top of the flash memory stack in the CFMA.
    Type: Application
    Filed: September 29, 2021
    Publication date: March 30, 2023
    Inventors: Takashi Ando, Nanbo Gong, Bahman Hekmatshoartabari, Alexander Reznicek
  • Publication number: 20230097847
    Abstract: A porous thin film includes a framework that includes a plurality of pores. The pores extend from an opening located at an upper surface of the framework to a bottom surface contained in the framework. A pore-coating film is formed on sidewalls and the bottom surface of the pores.
    Type: Application
    Filed: September 27, 2021
    Publication date: March 30, 2023
    Inventors: Leonidas Ernesto Ocola, Eric A. Joseph, Hiroyuki Miyazoe, Takashi Ando, Damon Brooks Farmer
  • Publication number: 20230099254
    Abstract: Embodiments of the invention are directed to a transistor device that includes a channel stack having stacked, spaced-apart, channel layers. A first source or drain (S/D) region is communicatively coupled to the channel stack. A tunnel extends through the channel stack, wherein the tunnel includes a central region and a first set of end regions. The first set of end regions is positioned closer to the first S/D region than the central region is to the first S/D region. A first type of work-function metal (WFM) is formed in the first set of end regions, the first WFM having a first work-function (WF). A second type of WFM is formed in the central region, the second type of WFM having a second WF, wherein the first WF is different than the second WF.
    Type: Application
    Filed: September 24, 2021
    Publication date: March 30, 2023
    Inventors: Takashi Ando, Ruilong Xie, Pouya Hashemi, Alexander Reznicek
  • Publication number: 20230094719
    Abstract: A memory device is provided. The memory device includes a main feature disposed beneath a surface of a photolithographic mask. The memory device further includes at least one Sub-Resolution Assistant Feature (SRAF) proximate to the main feature beneath the surface. The main feature has an electrical conductivity based on an area relationship with the at least one SRAF.
    Type: Application
    Filed: September 30, 2021
    Publication date: March 30, 2023
    Inventors: Cheng Chi, Takashi Ando, Reinaldo Vega, Praneet Adusumilli
  • Publication number: 20230103003
    Abstract: An apparatus includes a first plate, a second plate, a third plate, a ferroelectric dielectric, and a paraelectric dielectric. The ferroelectric dielectric is between the first plate and the second plate such that the first plate, the ferroelectric dielectric, and the second plate form a first capacitor. The paraelectric dielectric is between the second plate and the third plate such that the second plate, the paraelectric dielectric, and the third plate form a second capacitor.
    Type: Application
    Filed: September 24, 2021
    Publication date: March 30, 2023
    Inventors: Takashi ANDO, Reinaldo VEGA, Cheng CHI, Praneet ADUSUMILLI
  • Publication number: 20230093462
    Abstract: A field effect device is provided. The field effect device includes an active gate structure, a gate contact within the active gate structure, wherein the gate contact is the same height as the active gate structure, and a gate cut dielectric on opposite sides of the gate contact and active gate structure.
    Type: Application
    Filed: September 23, 2021
    Publication date: March 23, 2023
    Inventors: Reinaldo Vega, Takashi Ando, Cheng Chi, Praneet Adusumilli
  • Publication number: 20230085995
    Abstract: A semiconductor device comprises a plurality of resistive memory element structures, at least a subset of the plurality of resistive memory element structures being associated with random analog resistive states. The random analog resistive states of the subset of the plurality of resistive memory element structures provide a unique identification of the semiconductor device.
    Type: Application
    Filed: September 22, 2021
    Publication date: March 23, 2023
    Inventors: Takashi Ando, Jonas Doevenspeck, Youngseok Kim, Soon-Cheon Seo, Seyoung Kim
  • Patent number: 11610941
    Abstract: A non-volatile memory cell includes a thin film resistor (TFR) in series and between a top state influencing electrode and a top wire. The TFR limits or generally reduces the electrical current at the top state influencing electrode from the top wire. As such, non-volatile memory cell endurance may be improved and adverse impacts to component(s) that neighbor the non-volatile memory cell may be limited. The TFR is additionally utilized as an etch stop when forming a top wire trench associated with the fabrication of the top wire. In some non-volatile memory cells where cell symmetry is desired, an additional TFR may be formed between a bottom wire and a bottom state influencing electrode.
    Type: Grant
    Filed: November 25, 2020
    Date of Patent: March 21, 2023
    Assignee: International Business Machines Corporation
    Inventors: Kevin W. Brew, Takashi Ando, Michael Rizzolo, Lawrence A. Clevenger
  • Publication number: 20230083308
    Abstract: A method for forming a nonvolatile PCM logic device may include providing a PCM film component having a first end contact distally opposed from a second end contact, positing a first proximity adjacent to a first surface of the PCM film component, positing a second proximity heater adjacent to a second surface of the PCM film component, wherein the first proximity heater and the second proximity heater are electrically isolated from the PCM film component. The method may further include applying a combination of pulses to one or more of the first proximity heater and the second proximity heater to change a resistance value of the PCM film component corresponding to a logic truth table. Further, the method may include simultaneously applying a first combination of reset pulses to program, or set pulses to initialize, the PCM film component, to the first proximity heater and the second proximity heater.
    Type: Application
    Filed: September 13, 2021
    Publication date: March 16, 2023
    Inventors: Guy M. Cohen, Nanbo Gong, Takashi Ando
  • Publication number: 20230079392
    Abstract: Structures and methods are provided for integrating a resistance random access memory (ReRAM) in a back-end-on-the-line (BEOL) fat wire level. In one embodiment, a ReRAM device area contact structure is provided in the BEOL fat wire level that has at least a lower via portion that contacts a surface of a top electrode of a ReRAM device area ReRAM-containing stack. In other embodiments, a tall ReRAM device area bottom electrode is provided in the BEOL fat wire level and embedded in a dielectric material stack that includes a dielectric capping layer and an interlayer dielectric material layer.
    Type: Application
    Filed: September 16, 2021
    Publication date: March 16, 2023
    Inventors: Soon-Cheon Seo, DEXIN KONG, Takashi Ando, Paul Charles Jamison, HIROYUKI MIYAZOE, Youngseok Kim, Nicole Saulnier, Vijay Narayanan, Iqbal Rashid Saraf
  • Publication number: 20230077912
    Abstract: A memory, system, and method to improve integration density while maintaining thermal efficiency through a phase change memory cell with a superlattice based thermal barrier. The phase change memory may include a bottom electrode. The phase change memory may also include an active phase change material. The phase change memory may also include a superlattice thermal barrier proximately connected to the active phase change material. The phase change memory may also include a top electrode proximately connected to the superlattice thermal barrier. The system may include the phase change memory cell. The method for forming a phase change memory may include depositing an active phase change material on a bottom electrode. The method may also include depositing a superlattice thermal barrier proximately connected to the active phase change material. The method may also include depositing a top electrode proximately connected to the superlattice thermal barrier.
    Type: Application
    Filed: September 15, 2021
    Publication date: March 16, 2023
    Inventors: Praneet Adusumilli, Kevin W. Brew, Takashi Ando, Reinaldo Vega
  • Patent number: 11605673
    Abstract: An approach to forming a semiconductor structure is provided. The semiconductor structure includes two adjacent fins on a substrate. A gate stack is on each of the two adjacent fins. The semiconductor structure includes a first source/drain on a first end of each fin of the two adjacent fins and a second source/drain on a second end of each fin of the two adjacent fins. The semiconductor structure includes a switching layer on at least the first source/drain on the first end of each fin of the two adjacent fins and a top electrode on the switching layer. A metal material over the top electrode in the semiconductor structure.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: March 14, 2023
    Assignee: International Business Machines Corporation
    Inventors: Alexander Reznicek, Tsung-Sheng Kang, Takashi Ando, Bahman Hekmatshoartabari
  • Publication number: 20230065091
    Abstract: A semiconductor structure comprises a gate structure of a transistor. The gate structure comprises a gate conductive portion disposed on a gate dielectric layer. The semiconductor structure further comprises a capacitor structure disposed on the gate structure. The capacitor structure comprises a first conductive layer, a dielectric layer disposed on the first conductive layer and a second conductive layer disposed on the dielectric layer. The first and second conductive layers are respectively connected to a first contact portion and a second contact portion.
    Type: Application
    Filed: September 1, 2021
    Publication date: March 2, 2023
    Inventors: Alexander Reznicek, Takashi Ando, Bahman Hekmatshoartabari, Nanbo Gong
  • Patent number: 11594596
    Abstract: Embodiments of the present invention are directed to a back-end-of-line (BEOL) compatible metal-insulator-metal on-chip decoupling capacitor (MIMCAP). This BEOL compatible process includes a thermal treatment for inducing an amorphous-to-cubic phase change in the insulating layer of the MIM stack prior to forming the top electrode. In a non-limiting embodiment of the invention, a bottom electrode layer is formed, and an insulator layer is formed on a surface of the bottom electrode layer. The insulator layer can include an amorphous dielectric material. The insulator layer is thermally treated such that the amorphous dielectric material undergoes a cubic phase transition, thereby forming a cubic phase dielectric material. A top electrode layer is formed on a surface of the cubic phase dielectric material of the insulator layer.
    Type: Grant
    Filed: March 3, 2021
    Date of Patent: February 28, 2023
    Assignee: International Business Machines Corporation
    Inventors: Paul Jamison, Takashi Ando, John Greg Massey, Eduard Cartier
  • Patent number: 11590557
    Abstract: A wire forming apparatus 1 comprises a rotary table 22 that is rotatably supported by a table body 21, a slide tool unit 100A that is attached to the rotary table 22 and supports a slide tool T1 capable of sliding toward a wire guide, and a tool slide mechanism 60 that is supported by the table body 21 and transmits a driving force for sliding the slide tool T1 to the slide tool unit 100A. The tool slide mechanism 60 has a single motive power transmission member 61 that is rotatably supported by the table body 21, and a driving force generated by a rotation of the motive power transmission member 61 is transmitted, in common, to a plurality of slide tools T1 attached to the rotary table 22.
    Type: Grant
    Filed: March 19, 2021
    Date of Patent: February 28, 2023
    Assignee: KABUSHIKI KAISHA ITAYA SEISAKU SHO
    Inventors: Kenji Kanazawa, Takashi Ando
  • Publication number: 20230055047
    Abstract: Techniques for fabricating semiconductor structures and devices with stacked structures having embedded capacitors are disclosed. In one example, a semiconductor structure includes a substrate having a first region and a second region. The semiconductor structure further includes a capacitor structure disposed in the second region of the substrate. The capacitor structure includes a capacitor conductor and a dielectric insulator disposed between the capacitor conductor and the substrate. The semiconductor structure further includes a stacked device disposed on the first region of the substrate. The stacked device includes a first transistor and a second transistor. At least a portion of the second transistor is disposed under at least a portion of the first transistor. The first transistor and the second transistor are each coupled to the capacitor conductor.
    Type: Application
    Filed: August 17, 2021
    Publication date: February 23, 2023
    Inventors: Ruilong Xie, Takashi Ando, Alexander Reznicek, Bahman Hekmatshoartabari
  • Patent number: 11588105
    Abstract: A device includes an electronic component, and the electronic component includes a first pad, a second pad, and a strip connecting the first pad and the second pad. The device further includes a first electrode in contact with the first pad and a second electrode in contact with the second pad. The electronic component is made of a phase change material. At least one of the first electrode and the second electrode is coated with a material that is configured to increase a difference in workfunction between the first electrode and the second electrode.
    Type: Grant
    Filed: March 11, 2021
    Date of Patent: February 21, 2023
    Assignee: International Business Machines Corporation
    Inventors: Praneet Adusumilli, Takashi Ando, Reinaldo Vega, Cheng Chi
  • Patent number: 11587837
    Abstract: Embodiments of the present invention are directed to fabrication method and resulting structures for vertical tunneling field effect transistors (VFETs) having an oxygen vacancy passivating bottom spacer. In a non-limiting embodiment of the invention, a first semiconductor fin is formed in a first region of a substrate and a second semiconductor fin is formed in a second region of the substrate. A bilayer bottom spacer is formed in direct contact with sidewalls of the semiconductor fins. The bilayer bottom spacer includes a first layer and an oxygen-donating second layer positioned on the first layer. A first dielectric film is formed on the sidewalls of the first semiconductor fin. The first dielectric film terminates on the first layer. A second dielectric film is formed on the sidewalls of the second semiconductor fin. The second dielectric film extends onto a surface of the oxygen-donating second layer.
    Type: Grant
    Filed: January 7, 2022
    Date of Patent: February 21, 2023
    Assignee: International Business Machines Corporation
    Inventors: Choonghyun Lee, Takashi Ando, Alexander Reznicek, Jingyun Zhang