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).

  • Publication number: 20210203326
    Abstract: An adder uses with first and second majority gates. For a 1-bit adder, output from a 3-input majority gate is inverted and input two times to a 5-input majority gate. Other inputs to the 5-input majority gate are the same as those of the 3-input majority gate. The output of the 5-input majority gate is a sum while the output of the 3-input majority gate is the carry. Multiple 1-bit adders are concatenated to form an N-bit adder. The input signals to the majority gates can be analog, digital, or a combination of them, which are driven to first terminals of non-ferroelectric capacitors. The second terminals of the non-ferroelectric capacitors are coupled to form a majority node. Majority function of the input signals occurs on this node. The majority node is then coupled to a first terminal of a non-linear polar capacitor. The second terminal of the capacitor provides the output of the logic gate.
    Type: Application
    Filed: February 23, 2021
    Publication date: July 1, 2021
    Applicant: Kepler Computing Inc.
    Inventors: Sasikanth Manipatruni, Yuan-Sheng Fang, Robert Menezes, Rajeev Kumar Dokania, Gaurav Thareja, Ramamoorthy Ramesh, Amrita Mathuriya
  • Publication number: 20210202507
    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: December 27, 2019
    Publication date: July 1, 2021
    Applicant: Kepler Computing, Inc.
    Inventors: Gaurav Thareja, Sasikanth Manipatruni, Rajeev Kumar Dokania, Ramamoorthy Ramesh, Amrita Mathuriya
  • Publication number: 20210202690
    Abstract: Ferroelectric capacitor is formed by conformably depositing a non-conductive dielectric over the etched first and second electrodes, and forming a metal cap or helmet over a selective part of the non-conductive dielectric, wherein the metal cap conforms to portions of sidewalls of the non-conductive dielectric. The metal cap is formed by applying physical vapor deposition at a grazing angle to selectively deposit a metal mask over the selective part of the non-conductive dielectric. The metal cap can also be formed by applying ion implantation with tuned etch rate. The method further includes isotopically etching the metal cap and the non-conductive dielectric such that non-conductive dielectric remains on sidewalls of the first and second electrodes but not on the third and fourth electrodes.
    Type: Application
    Filed: February 19, 2020
    Publication date: July 1, 2021
    Applicant: Kepler Computing Inc.
    Inventors: Gaurav Thareja, Sasikanth Manipatruni, Rajeev Kumar Dokania, Ramamoorthy Ramesh, Amrita Mathuriya
  • Publication number: 20210203325
    Abstract: A new class of logic gates are presented that use non-linear polar material. The logic gates include multi-input majority gates and threshold gates. Input signals in the form of analog, digital, or combination of them are driven to first terminals of non-ferroelectric capacitors. The second terminals of the non-ferroelectric capacitors are coupled to form a majority node. Majority function of the input signals occurs on this node. The majority node is then coupled to a first terminal of a capacitor comprising non-linear polar material. The second terminal of the capacitor provides the output of the logic gate, which can be driven by any suitable logic gate such as a buffer, inverter, NAND gate, NOR gate, etc. Any suitable logic or analog circuit can drive the output and inputs of the majority logic gate. As such, the majority gate of various embodiments can be combined with existing transistor technologies.
    Type: Application
    Filed: December 21, 2020
    Publication date: July 1, 2021
    Applicant: Kepler Computing, Inc.
    Inventors: Sasikanth Manipatruni, Robert Menezes, Yuan-Sheng Fang, Rajeev Kumar Dokania, Gaurav Thareja, Ramamoorthy Ramesh, Amrita Mathuriya
  • Patent number: 11037838
    Abstract: The systems and methods discussed herein are for a cluster tool that can be used for MOSFET device fabrication, including NMOS and PMOS devices. The cluster tool includes process chambers for pre-cleaning, metal-silicide or metal-germanide film formation, and surface protection operations such as capping and nitridation. The cluster tool can include one or more process chambers configured to form a source and a drain. The devices fabricated in the cluster tool are fabricated to have at least one protective layer formed over the metal-silicide or metal-germanide film to protect the film from contamination during handling and transfer to separate systems.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: June 15, 2021
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Xuebin Li, Schubert S. Chu, Errol Antonio C. Sanchez, Patricia M. Liu, Gaurav Thareja, Raymond Hoiman Hung
  • Patent number: 11025254
    Abstract: A new class of logic gates are presented that use non-linear polar material. The logic gates include multi-input majority gates and threshold gates. Input signals in the form of analog, digital, or combination of them are driven to first terminals of non-ferroelectric capacitors. The second terminals of the non-ferroelectric capacitors are coupled to form a majority node. Majority function of the input signals occurs on this node. The majority node is then coupled to a first terminal of a capacitor comprising non-linear polar material. The second terminal of the capacitor provides the output of the logic gate, which can be driven by any suitable logic gate such as a buffer, inverter, NAND gate, NOR gate, etc. Any suitable logic or analog circuit can drive the output and inputs of the majority logic gate. As such, the majority gate of various embodiments can be combined with existing transistor technologies.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: June 1, 2021
    Assignee: Kepler Computing Inc.
    Inventors: Sasikanth Manipatruni, Robert Menezes, Yuan-Sheng Fang, Rajeev Kumar Dokania, Gaurav Thareja, Ramamoorthy Ramesh, Amrita Mathuriya
  • Patent number: 11018672
    Abstract: A new class of logic gates are presented that use non-linear polar material. The logic gates include multi-input majority gates and threshold gates. Input signals in the form of analog, digital, or combination of them are driven to first terminals of non-ferroelectric capacitors. The second terminals of the non-ferroelectric capacitors are coupled to form a majority node. Majority function of the input signals occurs on this node. The majority node is then coupled to a first terminal of a capacitor comprising non-linear polar material. The second terminal of the capacitor provides the output of the logic gate, which can be driven by any suitable logic gate such as a buffer, inverter, NAND gate, NOR gate, etc. Any suitable logic or analog circuit can drive the output and inputs of the majority logic gate. As such, the majority gate of various embodiments can be combined with existing transistor technologies.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: May 25, 2021
    Assignee: Kepler Computing Inc.
    Inventors: Sasikanth Manipatruni, Robert Menezes, Yuan-Sheng Fang, Rajeev Kumar Dokania, Gaurav Thareja, Ramamoorthy Ramesh, Amrita Mathuriya
  • Patent number: 11012076
    Abstract: A new class of logic gates are presented that use non-linear polar material. The logic gates include multi-input majority gates and threshold gates. Input signals in the form of analog, digital, or combination of them are driven to first terminals of non-ferroelectric capacitors. The second terminals of the non-ferroelectric capacitors are coupled to form a majority node. Majority function of the input signals occurs on this node. The majority node is then coupled to a first terminal of a capacitor comprising non-linear polar material. The second terminal of the capacitor provides the output of the logic gate, which can be driven by any suitable logic gate such as a buffer, inverter, NAND gate, NOR gate, etc. Any suitable logic or analog circuit can drive the output and inputs of the majority logic gate. As such, the majority gate of various embodiments can be combined with existing transistor technologies.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: May 18, 2021
    Assignee: Kepler Computing Inc.
    Inventors: Sasikanth Manipatruni, Robert Menezes, Yuan-Sheng Fang, Rajeev Kumar Dokania, Gaurav Thareja, Ramamoorthy Ramesh, Amrita Mathuriya
  • Patent number: 11004687
    Abstract: A semiconductor device fabrication process includes forming gates on a substrate having a plurality of openings, each gate having a conducting layer a first metal and a gate dielectric layer of a first dielectric material, partially filling the openings with a second dielectric material, forming a first structure on the substrate in a processing system without breaking vacuum, depositing a third dielectric material over the first structure, and forming a planarized surface of the gates and a surface of the third dielectric material that is disposed over the first structure. The forming of the first structure includes forming trenches by removing second portions of the second dielectric material within each opening, forming recessed active regions in the trenches by partially filling the trenches with a second metal, forming a liner over each recessed active region, and forming a metal cap layer over each liner.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: May 11, 2021
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Gaurav Thareja, Keyvan Kashefizadeh, Xikun Wang, Anchuan Wang, Sanjay Natarajan, Sean M. Seutter, Dong Wu
  • Publication number: 20210135982
    Abstract: A route anomaly detection and remediation system analyzes a prefix for each route received to validate the route. A route monitoring component provides a centralized querying system for all routers from all devices to study routing history. A route collection component receives and stores all routes from multiple routers at a server. A set of microservice analysis components performs prefix analysis on each received route. Each microservice analysis component analyzes one or more portions of the prefix for each route to detect hijacked routes, leaked routes, withdrawn routes and/or other unhealthy routes before the routes are utilized for routing traffic on the network. The analysis performs new prefix validation and identifies healthy routes. Alerts identifying invalid routes are transmitted to an incident management system. Healthy routes are approved for usage by routers on the network to prevent network outages while improving network reliability, availability and stability.
    Type: Application
    Filed: March 25, 2020
    Publication date: May 6, 2021
    Inventors: Somesh CHATURMOHTA, Gary R. RATTERREE, Alireza KHOSHGOFTARMONFARED, Venkata Praneeth Naidu SANAPATHI, Gaurav THAREJA, Mark A. KASTEN, Scott W. HANBERG
  • Patent number: 10951213
    Abstract: A new class of logic gates are presented that use non-linear polar material. The logic gates include multi-input majority gates and threshold gates. Input signals in the form of analog, digital, or combination of them are driven to first terminals of non-ferroelectric capacitors. The second terminals of the non-ferroelectric capacitors are coupled to form a majority node. Majority function of the input signals occurs on this node. The majority node is then coupled to a first terminal of a capacitor comprising non-linear polar material. The second terminal of the capacitor provides the output of the logic gate, which can be driven by any suitable logic gate such as a buffer, inverter, NAND gate, NOR gate, etc. Any suitable logic or analog circuit can drive the output and inputs of the majority logic gate. As such, the majority gate of various embodiments can be combined with existing transistor technologies.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: March 16, 2021
    Assignee: Kepler Computing, Inc.
    Inventors: Sasikanth Manipatruni, Robert Menezes, Yuan-Sheng Fang, Rajeev Kumar Dokania, Gaurav Thareja, Ramamoorthy Ramesh, Amrita Mathuriya
  • Patent number: 10944404
    Abstract: An adder uses with first and second majority gates. For a 1-bit adder, output from a 3-input majority gate is inverted and input two times to a 5-input majority gate. Other inputs to the 5-input majority gate are the same as those of the 3-input majority gate. The output of the 5-input majority gate is a sum while the output of the 3-input majority gate is the carry. Multiple 1-bit adders are concatenated to form an N-bit adder. The input signals to the majority gates can be analog, digital, or a combination of them, which are driven to first terminals of non-ferroelectric capacitors. The second terminals of the non-ferroelectric capacitors are coupled to form a majority node. Majority function of the input signals occurs on this node. The majority node is then coupled to a first terminal of a non-linear polar capacitor. The second terminal of the capacitor provides the output of the logic gate.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: March 9, 2021
    Assignee: Kepler Computing, Inc.
    Inventors: Sasikanth Manipatruni, Yuan-Sheng Fang, Robert Menezes, Rajeev Kumar Dokania, Gaurav Thareja, Ramamoorthy Ramesh, Amrita Mathuriya
  • Publication number: 20200321473
    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 capacitor comprises a crystalline polar layer comprising a base polar material substitutionally doped with a dopant. The base polar material comprises one or more metal elements and one or both of oxygen or nitrogen. The dopant comprises a metal element of one of 4d series, 5d series, 4f series or 5f series that is different from the one or more metal elements, 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: April 7, 2020
    Publication date: October 8, 2020
    Inventors: Ramesh Ramamoorthy, Sasikanth Manipatruni, Gaurav Thareja
  • Publication number: 20200321344
    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: April 7, 2020
    Publication date: October 8, 2020
    Inventors: Ramesh Ramamoorthy, Sasikanth Manipatruni, Gaurav Thareja
  • Publication number: 20200321472
    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: April 7, 2020
    Publication date: October 8, 2020
    Inventors: Ramesh Ramamoorthy, Sasikanth Manipatruni, Gaurav Thareja
  • Publication number: 20200321474
    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: Application
    Filed: April 7, 2020
    Publication date: October 8, 2020
    Inventors: Ramesh Ramamoorthy, Sasikanth Manipatruni, Gaurav Thareja
  • Publication number: 20200266068
    Abstract: Methods and apparatuses for processing substrates, such as during metal silicide applications, are provided. In one or more embodiments, a method of processing a substrate includes depositing an epitaxial layer on the substrate, depositing a metal silicide seed layer on the epitaxial layer, and exposing the metal silicide seed layer to a nitridation process to produce a metal silicide nitride layer from at least a portion of the metal silicide seed layer. The method also includes depositing a metal silicide bulk layer on the metal silicide nitride layer and forming or depositing a nitride capping layer on the metal silicide bulk layer, where the nitride capping layer contains a metal nitride, a silicon nitride, a metal silicide nitride, or a combination thereof.
    Type: Application
    Filed: February 7, 2020
    Publication date: August 20, 2020
    Inventors: Xuebin LI, Wei LIU, Gaurav THAREJA, Shashank SHARMA, Patricia M. LIU, Schubert CHU
  • Publication number: 20200258997
    Abstract: The present disclosure generally relates to methods for forming a semiconductor device, a semiconductor device, and a processing chamber. The method includes forming a source/drain region in a processing system, forming a doped semiconductor layer on the source/drain region in the processing system, forming a metal silicide layer, forming a dielectric material, forming a trench in the dielectric material, and filling the trench with a conductor. The source/drain region, the doped semiconductor layer, and the metal silicide layer are formed without breaking vacuum. A semiconductor device includes a plurality of layers, and the semiconductor device has reduced contact resistance. A processing system is configured to perform the method and form the semiconductor device.
    Type: Application
    Filed: January 27, 2020
    Publication date: August 13, 2020
    Inventors: Gaurav THAREJA, Xuebin LI, Abhishek DUBE, Yi-Chiau HUANG, Andy LO, Patricia M. LIU, Sanjay NATARAJAN, Saurabh CHOPRA
  • Publication number: 20200258744
    Abstract: A semiconductor device fabrication process includes forming gates on a substrate having a plurality of openings, each gate having a conducting layer a first metal and a gate dielectric layer of a first dielectric material, partially filling the openings with a second dielectric material, forming a first structure on the substrate in a processing system without breaking vacuum, depositing a third dielectric material over the first structure, and forming a planarized surface of the gates and a surface of the third dielectric material that is disposed over the first structure. The forming of the first structure includes forming trenches by removing second portions of the second dielectric material within each opening, forming recessed active regions in the trenches by partially filling the trenches with a second metal, forming a liner over each recessed active region, and forming a metal cap layer over each liner.
    Type: Application
    Filed: June 17, 2019
    Publication date: August 13, 2020
    Inventors: Gaurav THAREJA, Keyvan KASHEFIZADEH, Xikun WANG, Anchuan WANG, Sanjay NATARAJAN, Sean M. SEUTTER, Dong Wu
  • Publication number: 20200203481
    Abstract: Embodiments disclosed herein include a processing system and a method of forming a contact. The processing system includes a plurality of process chambers configured to deposit, etch, and/or anneal a source/drain region of a substrate. The method includes depositing a doped semiconductor layer over a source/drain region, forming an anchor layer in a trench, and depositing a conductor in the trench. The method of forming a contact results in reduced contact resistance by using integrated processes, which allows various operations of the source/drain contact formation to be performed within the same processing system.
    Type: Application
    Filed: November 21, 2019
    Publication date: June 25, 2020
    Inventors: Gaurav THAREJA, Takashi KURATOMI, Avgerinos V. GELATOS, Xianmin TANG, Sanjay NATARAJAN, Keyvan KASHEFIZADEH, Zhebo CHEN, Jianxin LEI, Shashank SHARMA