Patents by Inventor Gaurav Thareja

Gaurav Thareja 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: 11949017
    Abstract: The disclosed technology generally relates to ferroelectric materials and semiconductor devices, and more particularly to semiconductor memory devices incorporating doped polar materials. In one aspect, a semiconductor device comprises a capacitor which in turn comprises a polar layer comprising a base polar material doped with a dopant. The base polar material includes one or more metal elements and one or both of oxygen or nitrogen. The dopant comprises a metal element that is different from the one or more metal elements and is present at a concentration such that a ferroelectric switching voltage of the capacitor is different from that of the capacitor having the base polar material without being doped with the dopant by more than about 100 mV. The capacitor stack additionally comprises first and second crystalline conductive oxide electrodes on opposing sides of the polar layer.
    Type: Grant
    Filed: December 16, 2022
    Date of Patent: April 2, 2024
    Assignee: Kepler Computing Inc.
    Inventors: Ramesh Ramamoorthy, Sasikanth Manipatruni, Gaurav Thareja
  • Patent number: 11949018
    Abstract: The disclosed technology generally relates to ferroelectric materials and semiconductor devices, and more particularly to semiconductor memory devices incorporating doped polar materials. In one aspect, a semiconductor device comprises a capacitor which in turn comprises a polar layer comprising a base polar material doped with a dopant. The base polar material includes one or more metal elements and one or both of oxygen or nitrogen. The dopant comprises a metal element that is different from the one or more metal elements and is present at a concentration such that a ferroelectric switching voltage of the capacitor is different from that of the capacitor having the base polar material without being doped with the dopant by more than about 100 mV. The capacitor stack additionally comprises first and second crystalline conductive oxide electrodes on opposing sides of the polar layer.
    Type: Grant
    Filed: December 19, 2022
    Date of Patent: April 2, 2024
    Assignee: Kepler Computing Inc.
    Inventors: Ramesh Ramamoorthy, Sasikanth Manipatruni, Gaurav Thareja
  • Publication number: 20240099018
    Abstract: Approaches for integrating FE memory arrays into a processor, and the resulting structures are described. Simultaneous integrations of regions with ferroelectric (FE) cells and regions with standard interconnects are also described. FE cells include FE capacitors that include a FE stack of layers, which is encapsulated with a protection material. The protection material protects the FE stack of layers as structures for regular logic are fabricated in the same die.
    Type: Application
    Filed: August 15, 2023
    Publication date: March 21, 2024
    Applicant: Kepler Computing Inc.
    Inventors: Sasikanth Manipatruni, Rajeev Kumar Dokania, Ramamoorthy Ramesh, Gaurav Thareja, Amrita Mathuriya
  • Publication number: 20240088299
    Abstract: The disclosed technology generally relates to ferroelectric materials and semiconductor devices, and more particularly to semiconductor memory devices incorporating doped polar materials. In one aspect, a semiconductor device comprises a capacitor, which in turn comprises a polar layer comprising a crystalline base polar material doped with a dopant. The base polar material includes one or more metal elements and one or both of oxygen or nitrogen, wherein the dopant comprises a metal element that is different from the one or more metal elements and is present at a concentration such that a ferroelectric switching voltage of the capacitor is different from that of the capacitor having the base polar material without being doped with the dopant by more than about 100 mV.
    Type: Application
    Filed: November 20, 2023
    Publication date: March 14, 2024
    Inventors: Ramesh Ramamoorthy, Sasikanth Manipatruni, Gaurav Thareja
  • Patent number: 11916149
    Abstract: The disclosed technology generally relates to ferroelectric materials and semiconductor devices, and more particularly to semiconductor memory devices incorporating doped polar materials. In one aspect, a semiconductor device comprises a transistor formed on a silicon substrate and a capacitor electrically connected to the transistor by a conductive via. The capacitor comprises upper and lower conductive oxide electrodes on opposing sides of a polar layer, wherein the lower conductive oxide electrode is electrically connected to a drain of the transistor.
    Type: Grant
    Filed: July 22, 2022
    Date of Patent: February 27, 2024
    Assignee: Kepler Computing Inc.
    Inventors: Ramesh Ramamoorthy, Sasikanth Manipatruni, Gaurav Thareja
  • Patent number: 11908943
    Abstract: The disclosed technology generally relates to ferroelectric materials and semiconductor devices, and more particularly to semiconductor memory devices incorporating doped polar materials. In one aspect, a semiconductor device comprises a capacitor which in turn comprises a polar layer comprising a base polar material doped with a dopant. The base polar material includes one or more metal elements and one or both of oxygen or nitrogen. The dopant comprises a metal element that is different from the one or more metal elements and is present at a concentration such that a ferroelectric switching voltage of the capacitor is different from that of the capacitor having the base polar material without being doped with the dopant by more than about 100 mV. The capacitor stack additionally comprises first and second crystalline conductive oxide electrodes on opposing sides of the polar layer.
    Type: Grant
    Filed: March 9, 2023
    Date of Patent: February 20, 2024
    Assignee: Kepler Computing Inc.
    Inventors: Ramesh Ramamoorthy, Sasikanth Manipatruni, Gaurav Thareja
  • Patent number: 11888067
    Abstract: The disclosed technology generally relates to ferroelectric materials and semiconductor devices, and more particularly to semiconductor memory devices incorporating doped polar materials. In one aspect, a semiconductor device comprises a capacitor which in turn comprises a polar layer comprising a base polar material doped with a dopant. The base polar material includes one or more metal elements and one or both of oxygen or nitrogen. The dopant comprises a metal element that is different from the one or more metal elements and is present at a concentration such that a ferroelectric switching voltage of the capacitor is different from that of the capacitor having the base polar material without being doped with the dopant by more than about 100 mV. The capacitor stack additionally comprises first and second crystalline conductive oxide electrodes on opposing sides of the polar layer.
    Type: Grant
    Filed: March 10, 2023
    Date of Patent: January 30, 2024
    Assignee: Kepler Computing Inc.
    Inventors: Ramesh Ramamoorthy, Sasikanth Manipatruni, Gaurav Thareja
  • Patent number: 11888066
    Abstract: The disclosed technology generally relates to ferroelectric materials and semiconductor devices, and more particularly to semiconductor memory devices incorporating doped polar materials. In one aspect, a semiconductor device comprises a capacitor which in turn comprises a polar layer comprising a base polar material doped with a dopant. The base polar material includes one or more metal elements and one or both of oxygen or nitrogen. The dopant comprises a metal element that is different from the one or more metal elements and is present at a concentration such that a ferroelectric switching voltage of the capacitor is different from that of the capacitor having the base polar material without being doped with the dopant by more than about 100 mV. The capacitor stack additionally comprises first and second crystalline conductive oxide electrodes on opposing sides of the polar layer.
    Type: Grant
    Filed: December 16, 2022
    Date of Patent: January 30, 2024
    Assignee: Kepler Computing Inc.
    Inventors: Ramesh Ramamoorthy, Sasikanth Manipatruni, Gaurav Thareja
  • Patent number: 11863183
    Abstract: A new class of multiplier cells (analog or digital) is derived from a 1-bit full adder and an AND gate. The 1-bit full adder is derived from first and second majority gates. The multiplier cell can also be implemented with a combination of two majority gates with majority and AND functions integrated in each of them. The two majority gates are coupled. Each of the first and second majority logic gates comprise a capacitor with non-linear polar material. The first and second majority gates receive the two inputs A and B that are to be multiplied. Other inputs received by the first and second majority gates are carry-in input, a sum-in input, and a bias voltage. The bias voltage is a negative voltage, which produces an integrated AND function in conjunction with a majority function. The second majority gate receives additional inputs, which are inverted output of the first majority gate.
    Type: Grant
    Filed: October 15, 2021
    Date of Patent: January 2, 2024
    Assignee: KEPLER COMPUTING INC.
    Inventors: Sasikanth Manipatruni, Yuan-Sheng Fang, Robert Menezes, Rajeev Kumar Dokania, Gaurav Thareja, Ramamoorthy Ramesh, Amrita Mathuriya
  • Patent number: 11848386
    Abstract: The disclosed technology generally relates to ferroelectric materials and semiconductor devices, and more particularly to semiconductor memory devices incorporating doped polar materials. In one aspect, a semiconductor device comprises a capacitor which in turn comprises a polar layer comprising a base polar material doped with a dopant. The base polar material includes one or more metal elements and one or both of oxygen or nitrogen. The dopant comprises a metal element that is different from the one or more metal elements and is present at a concentration such that a ferroelectric switching voltage of the capacitor is different from that of the capacitor having the base polar material without being doped with the dopant by more than about 100 mV. The capacitor stack additionally comprises first and second crystalline conductive oxide electrodes on opposing sides of the polar layer.
    Type: Grant
    Filed: March 9, 2023
    Date of Patent: December 19, 2023
    Assignee: Kepler Computing Inc.
    Inventors: Ramesh Ramamoorthy, Sasikanth Manipatruni, Gaurav Thareja
  • Patent number: 11837664
    Abstract: The disclosed technology generally relates to ferroelectric materials and semiconductor devices, and more particularly to semiconductor memory devices incorporating doped polar materials. In one aspect, a semiconductor device comprises a capacitor, which in turn comprises a polar layer comprising a crystalline base polar material doped with a dopant. The base polar material includes one or more metal elements and one or both of oxygen or nitrogen, wherein the dopant comprises a metal element that is different from the one or more metal elements and is present at a concentration such that a ferroelectric switching voltage of the capacitor is different from that of the capacitor having the base polar material without being doped with the dopant by more than about 100 mV.
    Type: Grant
    Filed: October 10, 2022
    Date of Patent: December 5, 2023
    Assignee: Kepler Computing Inc.
    Inventors: Ramesh Ramamoorthy, Sasikanth Manipatruni, Gaurav Thareja
  • Patent number: 11758738
    Abstract: Approaches for integrating FE memory arrays into a processor, and the resulting structures are described. Simultaneous integrations of regions with ferroelectric (FE) cells and regions with standard interconnects are also described. FE cells include FE capacitors that include a FE stack of layers, which is encapsulated with a protection material. The protection material protects the FE stack of layers as structures for regular logic are fabricated in the same die.
    Type: Grant
    Filed: May 12, 2022
    Date of Patent: September 12, 2023
    Assignee: KEPLER COMPUTING INC.
    Inventors: Sasikanth Manipatruni, Rajeev Kumar Dokania, Ramamoorthy Ramesh, Gaurav Thareja, Amrita Mathuriya
  • Patent number: 11757043
    Abstract: The disclosed technology generally relates to ferroelectric materials and semiconductor devices, and more particularly to semiconductor memory devices incorporating doped polar materials. In one aspect, a semiconductor device comprises a capacitor which in turn comprises a polar layer comprising a base polar material doped with a dopant. The base polar material includes one or more metal elements and one or both of oxygen or nitrogen. The dopant comprises a metal element that is different from the one or more metal elements and is present at a concentration such that a ferroelectric switching voltage of the capacitor is different from that of the capacitor having the base polar material without being doped with the dopant by more than about 100 mV. The capacitor stack additionally comprises first and second crystalline conductive oxide electrodes on opposing sides of the polar layer.
    Type: Grant
    Filed: August 12, 2022
    Date of Patent: September 12, 2023
    Assignee: Kepler Computing Inc.
    Inventors: Ramesh Ramamoorthy, Sasikanth Manipatruni, Gaurav Thareja
  • Publication number: 20230284455
    Abstract: The memory bit-cell formed using the ferroelectric capacitor results in a taller and narrower bit-cell compared to traditional memory bit-cells. As such, more bit-cells can be packed in a die resulting in a higher density memory that can operate at lower voltages than traditional memories while providing the much sought after non-volatility behavior. The pillar capacitor includes a plug that assists in fabricating a narrow pillar.
    Type: Application
    Filed: August 30, 2022
    Publication date: September 7, 2023
    Applicant: Kepler Computing Inc.
    Inventors: Gaurav Thareja, Sasikanth Manipatruni, Rajeev Kumar Dokania, Ramamoorthy Ramesh, Amrita Mathuriya
  • Publication number: 20230268414
    Abstract: Embodiments of the disclosure provide methods and electronic devices comprising a work function layer comprising a material that forms a weak silicide. The electronic devices comprise a silicon layer with the work function layer thereon and a metal contact on the work function layer.
    Type: Application
    Filed: July 13, 2022
    Publication date: August 24, 2023
    Applicant: Applied Materials, Inc.
    Inventors: Michael Haverty, Avgerinos V. Gelatos, Gaurav Thareja, Seshadri Ganguli
  • Publication number: 20230268415
    Abstract: Embodiments of the disclosure provide methods and electronic devices comprising a work function layer comprising a material that forms a conductive oxide with or without titanium. The electronic devices comprise a silicon layer with the work function layer thereon and a metal contact on the work function layer.
    Type: Application
    Filed: July 13, 2022
    Publication date: August 24, 2023
    Applicant: Applied Materials, Inc.
    Inventors: Michael Haverty, Avgerinos V. Gelatos, Gaurav Thareja
  • Patent number: 11735467
    Abstract: Processing methods may be performed to form an airgap spacer on a semiconductor substrate. The methods may include forming a spacer structure including a first material and a second material different from the first material. The methods may include forming a source/drain structure. The source/drain structure may be offset from the second material of the spacer structure by at least one other material. The methods may also include etching the second material from the spacer structure to form the airgap. The source/drain structure may be unexposed to etchant materials during the etching.
    Type: Grant
    Filed: December 22, 2021
    Date of Patent: August 22, 2023
    Assignee: Applied Materials, Inc.
    Inventors: Ashish Pal, Gaurav Thareja, Sankuei Lin, Ching-Mei Hsu, Nitin K. Ingle, Ajay Bhatnagar, Anchuan Wang
  • Publication number: 20230231055
    Abstract: The disclosed technology generally relates to ferroelectric materials and semiconductor devices, and more particularly to semiconductor memory devices incorporating doped polar materials. In one aspect, a semiconductor device comprises a capacitor which in turn comprises a polar layer comprising a base polar material doped with a dopant. The base polar material includes one or more metal elements and one or both of oxygen or nitrogen. The dopant comprises a metal element that is different from the one or more metal elements and is present at a concentration such that a ferroelectric switching voltage of the capacitor is different from that of the capacitor having the base polar material without being doped with the dopant by more than about 100 mV. The capacitor stack additionally comprises first and second crystalline conductive oxide electrodes on opposing sides of the polar layer.
    Type: Application
    Filed: March 9, 2023
    Publication date: July 20, 2023
    Inventors: Ramesh Ramamoorthy, Sasikanth Manipatruni, Gaurav Thareja
  • Patent number: 11705335
    Abstract: Methods of doping a semiconductor material are disclosed. Some embodiments provide for conformal doping of three dimensional structures. Some embodiments provide for doping with high concentrations of boron for p-type doping.
    Type: Grant
    Filed: April 20, 2022
    Date of Patent: July 18, 2023
    Assignee: Applied Materials, Inc.
    Inventors: Srinivas Gandikota, Abhijit Basu Mallick, Swaminathan Srinivasan, Rui Cheng, Susmit Singha Roy, Gaurav Thareja, Mukund Srinivasan, Sanjay Natarajan
  • Publication number: 20230215953
    Abstract: The disclosed technology generally relates to ferroelectric materials and semiconductor devices, and more particularly to semiconductor memory devices incorporating doped polar materials. In one aspect, a semiconductor device comprises a capacitor which in turn comprises a polar layer comprising a base polar material doped with a dopant. The base polar material includes one or more metal elements and one or both of oxygen or nitrogen. The dopant comprises a metal element that is different from the one or more metal elements and is present at a concentration such that a ferroelectric switching voltage of the capacitor is different from that of the capacitor having the base polar material without being doped with the dopant by more than about 100 mV. The capacitor stack additionally comprises first and second crystalline conductive oxide electrodes on opposing sides of the polar layer.
    Type: Application
    Filed: March 10, 2023
    Publication date: July 6, 2023
    Inventors: Ramesh Ramamoorthy, Sasikanth Manipatruni, Gaurav Thareja