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: 11374056
    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: Grant
    Filed: September 14, 2017
    Date of Patent: June 28, 2022
    Assignee: Intel Corporation
    Inventors: Elijah V. Karpov, Brian S. Doyle, Ravi Pillarisetty, Prashant Majhi, Abhishek A. Sharma
  • Publication number: 20220199801
    Abstract: Embodiments disclosed herein include a semiconductor devices with back end of line (BEOL) transistor devices. In an embodiment, a semiconductor device comprises a semiconductor substrate and a BEOL stack over the semiconductor substrate. In an embodiment, a field effect transistor (FET) is embedded in the BEOL stack. In an embodiment, the FET comprises a channel, a gate dielectric over the channel, where the gate dielectric is single crystalline, a gate electrode over the gate dielectric, and a source electrode and a drain electrode passing through the gate dielectric to contact the channel.
    Type: Application
    Filed: December 23, 2020
    Publication date: June 23, 2022
    Inventors: Prashant MAJHI, Abhishek A. SHARMA, Charles C. KUO, Brian S. DOYLE, Urusa ALAAN, Van H. LE, Elijah V. KARPOV, Kaan OGUZ, Arnab SEN GUPTA
  • Publication number: 20220199839
    Abstract: Embodiments disclosed herein include semiconductor devices with Schottky diodes in a back end of line stack. In an embodiment, a semiconductor device comprises a semiconductor layer, where transistor devices are provided in the semiconductor layer, and a back end stack over the semiconductor layer. In an embodiment, a diode is in the back end stack. In an embodiment, the diode comprises a first electrode, a semiconductor region over the first electrode, and a second electrode over the semiconductor region. In an embodiment, a first interface between the first electrode and the semiconductor region is an ohmic contact, and a second interface between the semiconductor region and the second electrode is a Schottky contact.
    Type: Application
    Filed: December 23, 2020
    Publication date: June 23, 2022
    Inventors: Arnab SEN GUPTA, Urusa ALAAN, Justin WEBER, Charles C. KUO, Yu-Jin CHEN, Kaan OGUZ, Matthew V. METZ, Abhishek A. SHARMA, Prashant MAJHI, Brian S. DOYLE, Van H. LE
  • Publication number: 20220199609
    Abstract: Embodiments disclosed herein include semiconductor devices with electrostatic discharge (ESD) protection of the transistor devices. In an embodiment, a semiconductor device comprises a semiconductor substrate, where a transistor device is provided on the semiconductor substrate. In an embodiment, the semiconductor device further comprises a stack of routing layers over the semiconductor substrate, and a diode in the stack of routing layers. In an embodiment, the diode is configured to provide electrostatic discharge (ESD) protection to the transistor device.
    Type: Application
    Filed: December 23, 2020
    Publication date: June 23, 2022
    Inventors: Urusa ALAAN, Abhishek A. SHARMA, Charles C. KUO, Benjamin ORR, Nicholas THOMSON, Ayan KAR, Arnab SEN GUPTA, Kaan OGUZ, Brian S. DOYLE, Prashant MAJHI, Van H. LE, Elijah V. KARPOV
  • Publication number: 20220190030
    Abstract: A memory device structure includes a vertical transistor having a channel between a source and a drain, a gate electrode adjacent the channel, where the gate electrode is in a first direction orthogonal to a longitudinal axis of the channel. A gate dielectric layer is between the gate electrode and the channel A first terminal of a first interconnect is coupled with the source or the drain, where the first interconnect is colinear with the longitudinal axis. The memory device structure further includes a pair of memory cells, where individual ones of the memory cells includes a selector and a memory element, where a first terminal of the individual ones of the memory cell is coupled to a respective second and a third terminal of the first interconnect. A second terminal of the individual ones of the memory cell is coupled to individual ones of the pair of second interconnects.
    Type: Application
    Filed: December 10, 2020
    Publication date: June 16, 2022
    Applicant: Intel Corporation
    Inventors: Prashant Majhi, Derchang Kau, Max Hineman
  • Publication number: 20220190029
    Abstract: A memory structure includes a plurality of memory cells between a first and a second terminal and a pair of first conductors within a first tier, where individual ones of the first conductors are coupled to the first terminal of a first adjacent pair of memory cells in a first row orthogonal to the first conductors. The memory structure further includes a pair of second conductors within a second tier and parallel to the first conductors, where individual ones of the second conductors are coupled to the first terminal of a second adjacent pair of memory cells in a second row. The memory structure further includes a third conductor between the first and second tiers, and between each of the pair of the first conductors and the pair of the second conductors. The third conductor is coupled to second terminals of both the first and second adjacent pairs of memory cells.
    Type: Application
    Filed: December 10, 2020
    Publication date: June 16, 2022
    Applicant: Intel Corporation
    Inventors: Derchang Kau, Prashant Majhi, Khaled Hasnat
  • Publication number: 20220190035
    Abstract: A memory device structure includes a first plurality of line structures, where each line structure, in the first plurality of line structures, includes a first transistor channel. The memory device structure further includes a second plurality of line structures substantially orthogonal to the first plurality of line structures, where each line structure, in the second plurality of line structures, includes a second transistor channel A memory cell is at each cross-point between the first plurality of line structures and the second plurality of line structures.
    Type: Application
    Filed: December 10, 2020
    Publication date: June 16, 2022
    Applicant: Intel Corporation
    Inventors: Prashant Majhi, Derchang Kau, Max Hineman
  • Patent number: 11362140
    Abstract: Integrated circuits including 3D memory structures are disclosed. Air-gaps are purposefully introduced between word lines. The word lines may be horizontal or vertical.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: June 14, 2022
    Assignee: Intel Corporation
    Inventors: Prashant Majhi, Brian Doyle, Ravi Pillarisetty, Abhishek Sharma, Elijah V. Karpov
  • Publication number: 20220181335
    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: February 16, 2022
    Publication date: June 9, 2022
    Inventors: Abhishek A. SHARMA, Brian S. DOYLE, Ravi PILLARISETTY, Prashant MAJHI, Elijah V. KARPOV
  • Patent number: 11342457
    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: Grant
    Filed: September 18, 2017
    Date of Patent: May 24, 2022
    Assignee: Intel Corporation
    Inventors: Prashant Majhi, Willy Rachmady, Brian S. Doyle, Abhishek A. Sharma, Elijah V. Karpov, Ravi Pillarisetty, Jack T. Kavalieros
  • Patent number: 11335705
    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: Grant
    Filed: September 15, 2017
    Date of Patent: May 17, 2022
    Assignee: Intel Corporation
    Inventors: Prashant Majhi, Brian S. Doyle, Ravi Pillarisetty, Abhishek A. Sharma, Elijah V. Karpov
  • Publication number: 20220130820
    Abstract: A backend electrostatic discharge (ESD) diode device structure is presented comprising: a first structure comprising a first material, wherein the first material includes metal; a second structure adjacent to the first structure, wherein the second structure comprises a second material, wherein the second material includes a semiconductor or an oxide; and a third structure adjacent to the second structure, wherein the third structure comprises the first material, wherein the second structure is between the first and third structures.
    Type: Application
    Filed: January 10, 2022
    Publication date: April 28, 2022
    Applicant: Intel Corporation
    Inventors: Prashant Majhi, Ilya Karpov, Brian Doyle, Ravi Pillarisetty, Abhishek Sharma
  • Publication number: 20220130443
    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: Application
    Filed: January 6, 2022
    Publication date: April 28, 2022
    Inventors: Abhishek A. SHARMA, Brian S. DOYLE, Ravi PILLARISETTY, Prashant MAJHI, Elijah V. KARPOV
  • Publication number: 20220109025
    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: Application
    Filed: December 16, 2021
    Publication date: April 7, 2022
    Inventors: Prashant MAJHI, Ravi PILLARISETTY, Elijah V. KARPOV, Brian S. DOYLE, Abhishek A. SHARMA
  • Patent number: 11289509
    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: Grant
    Filed: September 29, 2017
    Date of Patent: March 29, 2022
    Assignee: Intel Corporation
    Inventors: Abhishek A. Sharma, Brian S. Doyle, Ravi Pillarisetty, Prashant Majhi, Elijah V. Karpov
  • Patent number: 11250899
    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: September 29, 2017
    Date of Patent: February 15, 2022
    Assignee: Intel Corporation
    Inventors: Abhishek A. Sharma, Brian S. Doyle, Ravi Pillarisetty, Prashant Majhi, Elijah V. Karpov
  • Patent number: 11233040
    Abstract: An embedded cross-point memory array is described. In an example, an integrated circuit structure includes a first die including a cross-point memory array comprising separate memory blocks, the memory blocks including orthogonally arranged conductive lines, and memory elements at cross-sections of the conductive lines. A first plurality of sockets is on the first die adjacent to the memory blocks, the first plurality of sockets comprising a first plurality of pads that connect to at least a portion to the conductive lines of the corresponding memory block. A second die includes logic circuitry and a second plurality of sockets comprising a second plurality of pads at least partially aligned with positions of the first plurality of pads on the first die. A top of the first die and a top of the second die face one another, wherein the first plurality of pads are bonded with the second plurality pads to directly connect the cross-point memory array to the logic circuitry.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: January 25, 2022
    Assignee: Intel Corporation
    Inventors: Elijah V. Karpov, Prashant Majhi, Brian S. Doyle, Ravi Pillarisetty, Yih Wang
  • Patent number: 11233090
    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: September 27, 2017
    Date of Patent: January 25, 2022
    Assignee: Intel Corporation
    Inventors: Prashant Majhi, Ravi Pillarisetty, Elijah V. Karpov, Brian S. Doyle, Abhishek A. Sharma
  • Patent number: 11222885
    Abstract: A backend electrostatic discharge (ESD) diode device structure is presented comprising: a first structure comprising a first material, wherein the first material includes metal; a second structure adjacent to the first structure, wherein the second structure comprises a second material, wherein the second material includes a semiconductor or an oxide; and a third structure adjacent to the second structure, wherein the third structure comprises of the first material, wherein the second structure is between the first and third structures. Other embodiments are also disclosed and claimed.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: January 11, 2022
    Assignee: Intel Corporation
    Inventors: Prashant Majhi, Ilya Karpov, Brian Doyle, Ravi Pillarisetty, Abhishek Sharma
  • Patent number: 11211489
    Abstract: Low resistance field-effect transistors and methods of manufacturing the same are disclosed herein. An example field-effect transistor disclosed herein includes a substrate and a stack above the substrate. The stack includes an insulator and a gate electrode. The example field-effect transistor includes a semiconductor material layer in a cavity in the stack. In the example field-effect transistor, a region of the semiconductor material layer proximate to the insulator is doped with a material of the insulator.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: December 28, 2021
    Assignee: Intel Corporation
    Inventors: Brian Doyle, Abhishek Sharma, Elijah Karpov, Ravi Pillarisetty, Prashant Majhi