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).

  • Publication number: 20230133484
    Abstract: An integrated circuit has a first layer having a recess that extends into the first layer. In addition, a second layer is within the recess and comprises a metal or a dielectric, and a third layer is within the recess and between the first and second layers, the third layer including a material that resonates at microwave frequencies (e.g., 2.4 GHz to 2.5 GHz). In some cases, the third layer material includes: (1) oxygen along with indium and/or zinc; or (2) diethylene glycol dibenzoate. In some cases, such as where the first layer comprises a dielectric (e.g., silicon dioxide) and second layer comprises a metal (e.g., copper), the integrated circuit further includes a fourth layer (e.g., barrier layer including tantalum or titanium) between the second and third layers. The third layer resonates in response to microwave annealing, thereby selectively heating the second layer (e.g., to reflow and/or grow grain size).
    Type: Application
    Filed: October 29, 2021
    Publication date: May 4, 2023
    Applicant: Intel Corporation
    Inventors: Prashant Majhi, Anand Murthy
  • Patent number: 11640995
    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: Grant
    Filed: June 20, 2017
    Date of Patent: May 2, 2023
    Assignee: Intel Corporation
    Inventors: Prashant Majhi, Brian S. Doyle, Kevin P. O'Brien, Abhishek A. Sharma, Elijah V. Karpov, Kaan Oguz
  • Patent number: 11640839
    Abstract: A 1S-1T ferroelectric memory cell is provided that include a transistor and a two-terminal selector device. The transistor exhibits a low conductive state and a high conductive state (channel resistance), depending on drive voltage. The two-terminal selector device exhibits one of an ON-state and an OFF-state depending upon whether the transistor is in its low conductive state or its high conductive state. The transistor may be, for instance, a ferroelectric gate vertical transistor. Modulation of a polarization state of ferroelectric material of the vertical transistor may be utilized to switch the state of the selector device. The memory cell may thus selectively be operated in one of an ON-state and an OFF-state depending upon whether the selector device is in its ON-state or OFF-state.
    Type: Grant
    Filed: January 6, 2022
    Date of Patent: May 2, 2023
    Assignee: Intel Corporation
    Inventors: Abhishek A. Sharma, Brian S. Doyle, Ravi Pillarisetty, Prashant Majhi, Elijah V. Karpov
  • Patent number: 11631717
    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: Grant
    Filed: September 28, 2018
    Date of Patent: April 18, 2023
    Assignee: Intel Corporation
    Inventors: Charles Kuo, Prashant Majhi, Abhishek Sharma, Willy Rachmady
  • Patent number: 11626437
    Abstract: Embodiments herein describe techniques for an optical device including a substrate of a wafer. An image sensor device is formed on a front side of the substrate, while a plurality of posts of a metasurface lens are formed on a backside opposite to the front side of the substrate. A post of the plurality of posts includes a metasurface material that is transparent to light. Other embodiments may be described and/or claimed.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: April 11, 2023
    Assignee: Intel Corporation
    Inventors: Prashant Majhi, Kunjal Parikh, Jack T. Kavalieros
  • Patent number: 11616057
    Abstract: IC device including back-end-of-line (BEOL) transistors with crystalline channel material. A BEOL crystalline seed may be formed over a dielectric layer that has been planarized over a front-end-of-line (FEOL) transistor level that employs a monocrystalline substrate semiconductor. The BEOL crystalline seed may be epitaxial to the substrate semiconductor, or may have crystallinity independent of that of the substrate semiconductor. The BEOL crystalline seed may comprise a first material having a higher melt temperature than a melt material formed over the seed and over the dielectric layer. Through rapid melt growth, the melt material may be heated to a temperature sufficient to transition from an as-deposited state to a more crystalline state that is derived from, and therefore associated with, the BEOL crystalline seed. A BEOL transistor may then be fabricated from the crystallized material.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: March 28, 2023
    Assignee: Intel Corporation
    Inventors: Prashant Majhi, Abhishek Sharma, Brian Doyle, Ravi Pillarisetty, Willy Rachmady
  • Publication number: 20230086977
    Abstract: Described herein are integrated circuit (IC) devices that include devices that include fin-based field-effect transistors (FinFETs) integrated over gate-all-around (GAA) transistors. The GAA transistors may serve to provide high-performance compute logic, and may be relatively low-voltage transistors, while FinFETs may be more suitable than GAA transistors for providing high-voltage transistors, and, therefore, may serve to provide peripheral logic for backend memory arrays implemented over the same support structure over which the GAA transistors and the FinFETs are provided. Such an arrangement may address the fundamental voltage incompatibility by integrating a mix of FinFETs and GAA transistors in stacked complimentary FET (CFET) architecture to enable embedded 1T-1X based memories.
    Type: Application
    Filed: September 17, 2021
    Publication date: March 23, 2023
    Applicant: Intel Corporation
    Inventors: Prashant Majhi, Brian S. Doyle, Van H. Le, Abhishek A. Sharma
  • Patent number: 11605671
    Abstract: Embedded non-volatile memory structures having double selector elements are described. In an example, a memory device includes a word line. A double selector element is above the word line. The double selector element includes a first selector material layer, a second selector material layer different than the first selector material layer, and a conductive layer directly between the first selector material layer and the second selector material layer. A bipolar memory element is above the word line. A conductive electrode is between the double selector element and the bipolar memory element. A bit line is above the word line.
    Type: Grant
    Filed: December 16, 2021
    Date of Patent: March 14, 2023
    Assignee: Intel Corporation
    Inventors: Prashant Majhi, Ravi Pillarisetty, Elijah V. Karpov, Brian S. Doyle, Abhishek A. Sharma
  • Publication number: 20230022167
    Abstract: Integrated circuit (IC) assemblies with stacked compute logic and memory dies, and associated systems and methods, are disclosed. One example IC assembly includes a compute logic die and a stack of memory dies provided above and coupled to the compute logic die, where one or more of the memory dies closest to the compute logic die include memory cells with transistors that are thin-film transistors (TFTs), while one or more of the memory dies further away from the compute logic die include memory cells with non-TFT transistors. Another example IC assembly includes a similar stack of compute logic die and memory dies where one or more of the memory dies closest to the compute logic die include static random-access memory (SRAM) cells, while one or more of the memory dies further away from the compute logic die include memory cells of other memory types.
    Type: Application
    Filed: July 22, 2021
    Publication date: January 26, 2023
    Applicant: Intel Corporation
    Inventors: Prashant Majhi, Brian S. Doyle, Abhishek A. Sharma, Van H. Le
  • Publication number: 20230008261
    Abstract: Memory cells with non-planar memory materials that include FE or AFE materials are described. An example memory cell includes a transistor provided over a support structure, where a memory material is integrated with a transistor gate. The channel material and the memory material are non-planar in that each includes a horizontal portion substantially parallel to the support structure, and a first and a second sidewall portions, each of which is substantially perpendicular to the support structure, where the horizontal portion of the memory material is between the horizontal portion of the channel material and a gate electrode material of the transistor gate, the first sidewall of the memory material is between the first sidewall of the channel material and the gate electrode material, and the second sidewall of the memory material is between the second sidewall of the channel material and the gate electrode material.
    Type: Application
    Filed: July 12, 2021
    Publication date: January 12, 2023
    Applicant: Intel Corporation
    Inventors: Abhishek A. Sharma, Van H. Le, Brian S. Doyle, Prashant Majhi
  • Patent number: 11522011
    Abstract: Embedded non-volatile memory structures having selector elements with ballast are described. In an example, a memory device includes a word line. A selector element is above the word line. The selector element includes a selector material layer and a ballast material layer different than the selector material layer. A bipolar memory element is above the word line. A conductive electrode is between the elector element and the bipolar memory element. A bit line is above the word line.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: December 6, 2022
    Assignee: Intel Corporation
    Inventors: Prashant Majhi, Ravi Pillarisetty, Elijah V. Karpov, Brian S. Doyle, Abhishek A. Sharma
  • Publication number: 20220359441
    Abstract: Three-dimensional (3D) NAND components formed with control circuitry split across two wafers can provide for more area for control circuitry for an array, enabling improved 3D NAND system performance. In one example, a 3D NAND component includes a first die including a three-dimensional (3D) NAND array and first complementary metal oxide semiconductor (CMOS) control circuitry to access the 3D NAND array, and a second die vertically stacked and bonded with the first die, the second die including second CMOS control circuitry to access the 3D NAND array of the first die.
    Type: Application
    Filed: May 7, 2021
    Publication date: November 10, 2022
    Inventors: Khaled HASNAT, Prashant MAJHI, Owen JUNGROTH, Richard FASTOW, Krishna K. PARAT
  • Patent number: 11488978
    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: Grant
    Filed: September 27, 2018
    Date of Patent: November 1, 2022
    Assignee: Intel Corporation
    Inventors: Prashant Majhi, Brian Doyle, Ravi Pillarisetty, Abhishek Sharma, Elijah Karpov
  • Patent number: 11430949
    Abstract: Disclosed herein are metal filament memory cells, and related devices and techniques. In some embodiments, a memory cell may include: a transistor having a source/drain region; and a metal filament memory device including an active metal and an electrolyte; wherein the electrolyte is coupled between the active metal and the source/drain region when the transistor is an n-type metal oxide semiconductor (NMOS) transistor, and the active metal is coupled between the electrolyte and the source/drain region when the transistor is a p-type metal oxide semiconductor (PMOS) transistor.
    Type: Grant
    Filed: September 25, 2016
    Date of Patent: August 30, 2022
    Assignee: Intel Corporation
    Inventors: Ravi Pillarisetty, Elijah V. Karpov, Prashant Majhi, Niloy Mukherjee
  • Publication number: 20220262860
    Abstract: Disclosed herein are selector devices and related devices and techniques. In some embodiments, a selector device may include a first electrode, a second electrode, and a selector material between the first electrode and the second electrode. The selector material may include germanium, tellurium, and sulfur.
    Type: Application
    Filed: May 4, 2022
    Publication date: August 18, 2022
    Applicant: Intel Corporation
    Inventors: Elijah V. Karpov, Brian S. Doyle, Ravi Pillarisetty, Prashant Majhi, Abhishek A. Sharma
  • Patent number: 11417705
    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: Grant
    Filed: September 28, 2018
    Date of Patent: August 16, 2022
    Assignee: Intel Corporation
    Inventors: Brian Doyle, Prashant Majhi, Elijah Karpov, Ravi Pillarisetty, Ashishek Sharma
  • Publication number: 20220246646
    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 a global plane of the substrate. A channel material layer is on the insulator structure. The channel material layer is conformal with the 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: April 14, 2022
    Publication date: August 4, 2022
    Inventors: Prashant Majhi, Brian S. Doyle, Ravi Pillarisetty, Abhishek A. Sharma, Elijah V. Karpov
  • Patent number: 11404639
    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: Grant
    Filed: August 28, 2018
    Date of Patent: August 2, 2022
    Assignee: Intel Corporation
    Inventors: Elijah V. Karpov, Brian S. Doyle, Prashant Majhi, Abhishek A. Sharma, Ravi Pillarisetty
  • Patent number: 11393874
    Abstract: Embedded non-volatile memory structures having an independently sized selector element and memory element are described. In an example, a memory device includes a metal layer. A selector element is above the metal layer. A memory element is above the metal line. A spacer surrounds one of the selector element and the memory element having a smallest width, and wherein the one of the selector element and the memory element not surrounded by the spacer has a width substantially identical to the spacer and is in alignment with the spacer.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: July 19, 2022
    Assignee: Intel Corporation
    Inventors: Brian S. Doyle, Abhishek A. Sharma, Ravi Pillarisetty, Elijah V. Karpov, Prashant Majhi
  • Patent number: 11393526
    Abstract: Described is a memory cell which comprises: a transistor positioned in a backend of a die, the transistor comprising: a source structure and a drain structure; a gate structure between the source structure and the drain structure; a source contact coupled to and above the source structure and a drain contact coupled to and below the drain structure; and a Resistive Random Access Memory (RRAM) device coupled to the drain contact.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: July 19, 2022
    Assignee: Intel Corporation
    Inventors: Ravi Pillarisetty, Elijah V. Karpov, Abhishek A. Sharma, Prashant Majhi, Brian S. Doyle