Patents by Inventor Prashant Majhi

Prashant Majhi 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).

  • Patent number: 10692974
    Abstract: Techniques are disclosed for deuterium-based passivation of non-planar transistor interfaces. In some cases, the techniques can include annealing an integrated circuit structure including the transistor in a range of temperatures, pressures, and times in an atmosphere that includes deuterium. In some instances, the anneal process may be performed at pressures of up to 50 atmospheres to increase the amount of deuterium that penetrates the integrated circuit structure and reaches the interfaces to be passivated. Interfaces to be passivated may include, for example, an interface between the transistor conductive channel and bordering transistor gate dielectric and/or an interface between sub-channel semiconductor and bordering shallow trench isolation oxides.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: June 23, 2020
    Assignee: INTEL CORPORATION
    Inventors: Prashant Majhi, Glenn A. Glass, Anand S. Murthy, Tahir Ghani, Aravind S. Killampalli, Mark R. Brazier, Jaya P. Gupta
  • Patent number: 10680115
    Abstract: Substrates, assemblies, and techniques for enabling a p-channel oxide semiconductor. For example, some embodiments can include an oxide semiconductor, where the oxide semiconductor includes an indium gallium zinc oxide (IGZO) sulfur alloy as a semiconducting material. The semiconducting material can be included in a thin-film-transistor that includes one or more p-channels.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: June 9, 2020
    Assignee: Intel Corporation
    Inventors: Khaled Ahmed, Prashant Majhi
  • Publication number: 20200176457
    Abstract: A ferroelectric field-effect transistor (FeFET) includes first and second gate electrodes, source and drain regions, a semiconductor region between and physically connecting the source and drain regions, a first gate dielectric between the semiconductor region and the first gate electrode, and a second gate dielectric between the semiconductor region and the second gate electrode. The first gate dielectric includes a ferroelectric dielectric. In an embodiment, a memory cell includes this FeFET, with the first gate electrode being electrically connected to a wordline and the drain region being electrically connected to a bitline. In another embodiment, a memory array includes wordlines extending in a first direction, bitlines extending in a second direction, and a plurality of such memory cells at crossing regions of the wordlines and the bitlines. In each memory cell, the wordline is a corresponding one of the wordlines and the bitline is a corresponding one of the bitlines.
    Type: Application
    Filed: September 29, 2017
    Publication date: June 4, 2020
    Applicant: Intel Corporation
    Inventors: Abhishek A. Sharma, Brian S. Doyle, Ravi Pillarisetty, Prashant Majhi, Elijah V. Karpov
  • Publication number: 20200168274
    Abstract: One embodiment of a memory device comprises a selector and a storage capacitor in series with the selector. A further embodiment comprises a conductive bridging RAM (CBRAM) in parallel with a storage capacitor coupled between the selector and zero volts. A plurality of memory devices form a 1S-1C or a 1S-1C-CBRAM cross-point DRAM array with 4F2 or less density.
    Type: Application
    Filed: September 29, 2017
    Publication date: May 28, 2020
    Inventors: Ravi PILLARISETTY, Abhishek A. SHARMA, Brian S. DOYLE, Elijah V. KARPOV, Prashant MAJHI
  • Publication number: 20200168636
    Abstract: Thin film tunnel field effect transistors having relatively increased width are described. In an example, integrated circuit structure includes an insulator structure above a substrate. The insulator structure has a topography that varies along a plane parallel with global plane of the substrate. A channel material layer is on the insulator structure. The channel material layer is conformal with the In topography of the insulator structure. A gate electrode is over a channel portion of the channel material layer on the insulator structure. A first conductive contact is over a source portion of the channel material layer on the insulator structure, the source portion having a first conductivity type. A second conductive contact is over a drain portion of the channel material layer on the insulator structure, the drain portion having a second conductivity type opposite the first conductivity type.
    Type: Application
    Filed: September 15, 2017
    Publication date: May 28, 2020
    Inventors: Prashant MAJHI, Brian S. DOYLE, Ravi PILLARISETTY, Abhishek A. SHARMA, Elijah V. KARPOV
  • Publication number: 20200161473
    Abstract: Strained thin film transistors are described. In an example, an integrated circuit structure includes a strain inducing layer on an insulator layer above a substrate. A polycrystalline channel material layer is on the strain inducing layer. A gate dielectric layer is on a first portion of the polycrystalline channel material. A gate electrode is on the gate dielectric layer, the gate electrode having a first side opposite a second side. A first conductive contact is adjacent the first side of the gate electrode, the first conductive contact on a second portion of the polycrystalline channel material. A second conductive contact adjacent the second side of the gate electrode, the second conductive contact on a third portion of the polycrystalline channel material.
    Type: Application
    Filed: September 17, 2017
    Publication date: May 21, 2020
    Inventors: Prashant MAJHI, Willy RACHMADY, Brian S. DOYLE, Abhishek A. SHARMA, Elijah V. KARPOV, Ravi PILLARISETTY, Jack T. KAVALIEROS
  • Patent number: 10658586
    Abstract: Embodiments of the present invention include RRAM devices and their methods of fabrication. In an embodiment, a resistive random access memory (RRAM) cell includes a conductive interconnect disposed in a dielectric layer above a substrate. An RRAM device is coupled to the conductive interconnect. An RRAM memory includes a bottom electrode disposed above the conductive interconnect and on a portion of the dielectric layer. A conductive layer is formed on the bottom electrode layer. The conductive layer is separate and distinct from the bottom electrode layer. The conductive layer further includes a material that is different from the bottom electrode layer. A switching layer is formed on the conductive layer. An oxygen exchange layer is formed on the switching layer and a top electrode is formed on the oxygen exchange layer.
    Type: Grant
    Filed: July 2, 2016
    Date of Patent: May 19, 2020
    Assignee: Intel Corporation
    Inventors: James S. Clarke, Ravi Pillarisetty, Uday Shah, Tejaswi K. Indukuri, Niloy Mukherjee, Elijah V. Karpov, Prashant Majhi
  • Publication number: 20200152793
    Abstract: A memory structure can include a conductive channel, a charge storage structure adjacent to the conductive channel, and a strain-inducing layer adjacent to the conductive channel on a side opposite the charge storage structure. The strain-inducing layer can have a higher coefficient of thermal expansion (CTE) than the conductive channel.
    Type: Application
    Filed: November 13, 2018
    Publication date: May 14, 2020
    Applicant: Intel Corporation
    Inventors: Prashant Majhi, Khaled Hasnat, Krishna Parat
  • Patent number: 10651153
    Abstract: Wafer-to-wafer bonding is used to form three-dimensional (3D) memory components such as 3D NAND flash memory with shared control circuitry on one die to access arrays on multiple dies. In one example, a non-volatile storage device includes a first die including a 3D array of non-volatile storage cells and CMOS (complementary metal oxide semiconductor) circuitry. A second die including a second 3D array of non-volatile storage cells is vertically stacked and bonded with the first die. At least a portion of the CMOS circuitry of the first die to access both the first 3D array of non-volatile storage cells of the first die and the second 3D array of non-volatile storage cells of the second die.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: May 12, 2020
    Assignee: Intel Corporation
    Inventors: Richard Fastow, Khaled Hasnat, Prashant Majhi, Owen Jungroth
  • Publication number: 20200144330
    Abstract: Multi-channel vertical transistors for embedded non-volatile memory are described. In an example, a memory array includes a plurality of non-volatile random access memory (RAM) elements. The memory array also includes a plurality of transistors. Individual ones of the plurality of transistors are coupled to corresponding individual ones of the plurality of non-volatile RAM elements. The plurality of transistors is a plurality of vertical multi-channel transistors.
    Type: Application
    Filed: September 19, 2017
    Publication date: May 7, 2020
    Inventors: Prashant MAJHI, Ravi PILLARISETTY, Abhishek A. SHARMA, Brian S. DOYLE, Elijah V. KARPOV
  • Publication number: 20200144293
    Abstract: Ferroelectric field effect transistors (FeFETs) having ambipolar channels are described. In an example, an integrated circuit structure includes a channel layer above a substrate. The channel layer is composed of an ambipolar material. A ferroelectric oxide material is above the channel layer. A gate electrode is on the ferroelectric oxide material, the gate electrode having a first side and a second side opposite the first side. A first source/drain region is at the first side of the gate electrode, and a second source/drain region is at the second side of the gate electrode.
    Type: Application
    Filed: September 12, 2017
    Publication date: May 7, 2020
    Inventors: Prashant MAJHI, Brian S. DOYLE, Elijah V. KARPOV, Abhishek A. SHARMA, Ravi PILLARISETTY
  • Publication number: 20200119030
    Abstract: Techniques are disclosed for forming three-dimensional (3D) NAND structures including group III-nitride (III-N) material channels. Typically, polycrystalline silicon (poly-Si) channels are used for 3D NAND structures, such as 3D NAND flash memory devices. However, using III-N channel material for 3D NAND structures offers numerous benefits over poly-Si channel material, such as relatively lower resistance in the channel, relatively higher current densities, and relatively lower leakage. Therefore, using III-N channel material enables an increased number of floating gates or storage cells to be stacked in 3D NAND structures, thereby leading to increased capacity for a given integrated circuit footprint (e.g., increased GB/cm2). For instance, use of III-N channel material can enable greater than 100 floating gates for a 3D NAND structure. Other embodiments may be described and/or disclosed.
    Type: Application
    Filed: June 30, 2016
    Publication date: April 16, 2020
    Applicant: INTEL CORPORATION
    Inventors: SANSAPTAK DASGUPTA, PRASHANT MAJHI, HAN WUI THEN, MARKO RADOSAVLJEVIC
  • Publication number: 20200105835
    Abstract: A memory cell is disclosed. The memory cell includes a storage component that includes a chalcogenide stack that includes a plurality of layers of material and a selector component that includes a Schottky diode.
    Type: Application
    Filed: September 28, 2018
    Publication date: April 2, 2020
    Inventors: Charles KUO, Prashant MAJHI, Abhishek SHARMA, Willy RACHMADY
  • Publication number: 20200105834
    Abstract: A memory cell is disclosed. The memory cell includes a word line contact, a cylindrical electrode having a top region and a bottom region, and RRAM material covering the surface of the cylindrical electrode from the top region to the bottom region. A select transistor contact is coupled to the bottom region of the cylindrical electrode.
    Type: Application
    Filed: September 28, 2018
    Publication date: April 2, 2020
    Inventors: Brian DOYLE, Prashant MAJHI, Elijah KARPOV, Ravi PILLARISETTY, Ashishek SHARMA
  • Publication number: 20200105940
    Abstract: Ferroelectric field effect transistors (FeFETs) having band-engineered interface layers are described. In an example, an integrated circuit structure includes a semiconductor channel layer above a substrate. A metal oxide material is on the semiconductor channel layer, the metal oxide material having no net dipole. A ferroelectric oxide material is on the metal oxide material. A gate electrode is on the ferroelectric oxide material, the gate electrode having a first side and a second side opposite the first side. A first source/drain region is at the first side of the gate electrode, and a second source/drain region is at the second side of the gate electrode.
    Type: Application
    Filed: June 20, 2017
    Publication date: April 2, 2020
    Inventors: Prashant MAJHI, Brian S. DOYLE, Kevin P. O'BRIEN, Abhishek A. SHARMA, Elijah V. KARPOV, Kaan OGUZ
  • Publication number: 20200105788
    Abstract: A transistor is disclosed. The transistor includes a p-type region, an intrinsic region coupled to the p-type region, an n-type region coupled to the intrinsic region, and a gate electrode above the intrinsic region. The ferroelectric material is on a bottom, a first side and a second side of the gate electrode, and above the intrinsic region.
    Type: Application
    Filed: September 27, 2018
    Publication date: April 2, 2020
    Inventors: Prashant MAJHI, Brian DOYLE, Ravi PILLARISETTY, Abhishek SHARMA, Elijah KARPOV
  • Publication number: 20200098926
    Abstract: Disclosed herein are transistors with ferroelectric gates, and related methods and devices. For example, in some embodiments, a transistor may include a channel material, and a gate stack, and the gate stack may include a gate electrode material and a ferroelectric material between the gate electrode material and the channel material.
    Type: Application
    Filed: September 26, 2018
    Publication date: March 26, 2020
    Applicant: Intel Corporation
    Inventors: Abhishek A. Sharma, Ravi Pillarisetty, Brian S. Doyle, Elijah V. Karpov, Prashant Majhi, Gilbert W. Dewey, Benjamin Chu-Kung, Van H. Le, Jack T. Kavalieros, Tahir Ghani
  • Publication number: 20200091274
    Abstract: Embodiments herein describe techniques for a thin-film transistor (TFT), which may include a substrate and a transistor above the substrate. The transistor includes a channel layer above the substrate, a gate dielectric layer adjacent to the channel layer, and a gate electrode separated from the channel layer by the gate dielectric layer. The gate dielectric layer includes a non-linear gate dielectric material. The gate electrode, the channel layer, and the gate dielectric layer form a non-linear capacitor. Other embodiments may be described and/or claimed.
    Type: Application
    Filed: September 18, 2018
    Publication date: March 19, 2020
    Inventors: Abhishek SHARMA, Ravi PILLARISETTY, Brian DOYLE, Elijah KARPOV, Prashant MAJHI, Gilbert DEWEY, Benjamin CHU-KUNG, Van H. LE, Jack T. KAVALIEROS, Tahir GHANI
  • Publication number: 20200075851
    Abstract: Disclosed herein are selector devices and related devices and techniques. For example, in some embodiments, a selector device may include a first electrode, a second electrode, and a selector material stack between the first electrode and the second electrode. The selector material stack may include a dielectric material layer between a first conductive material layer and a second conductive material layer. A first material layer may be present between the first electrode and the first conductive material layer, and a second material layer may be present between the first conductive material layer and the dielectric layer. The first material layer and the second material layer may be diffusion barriers, and the second material layer may be a weaker diffusion barrier than the first material layer.
    Type: Application
    Filed: August 28, 2018
    Publication date: March 5, 2020
    Applicant: Intel Corporation
    Inventors: Elijah V. Karpov, Brian S. Doyle, Prashant Majhi, Abhishek A. Sharma, Ravi Pillarisetty
  • Publication number: 20200064523
    Abstract: The present disclosure is directed to systems and methods useful for providing a metasurface lens formed by a plurality of multi-piece optical structures disposed on, about, or across at least a portion of the surface of substrate member. Each of the plurality of multi-piece optical structures includes a solid cylindrical core structure surrounded by a hollow cylindrical core structure such that a gap having a defined width forms between the solid cylindrical core structure and the hollow cylindrical structure surrounding the solid core. The width of the gap determines the optical performance of the metasurface lens. The multi-component optical structures forming the metasurface lens advantageously produce little or no phase shift in the electromagnetic energy passing through the metasurface lens, thereby beneficially providing an optical device having minimal or no dispersion and/or chromatic aberration.
    Type: Application
    Filed: October 31, 2019
    Publication date: February 27, 2020
    Applicant: Intel Corporation
    Inventors: Prashant Majhi, Kunjal Parikh, Paul West