Patents by Inventor Andrew Gaul

Andrew Gaul 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: 20240145584
    Abstract: A semiconductor device includes a field effect transistor (FET) with at least one Gate-All-Around (GAA) channel. A first conductive ferromagnetic Source/Drain contact is electrically connected with a first portion of the GAA channel. A second conductive ferromagnetic Source/Drain contact is electrically connected with a second portion of the GAA channel. A remanent magnetization of the first conductive ferromagnetic contact is oriented in a direction opposite to a remanent magnetization of the second conductive ferromagnetic contact.
    Type: Application
    Filed: October 31, 2022
    Publication date: May 2, 2024
    Inventors: Julien Frougier, Kangguo Cheng, Ruilong Xie, Chanro Park, Andrew Gaul, Min Gyu Sung
  • Patent number: 11935930
    Abstract: Embodiments herein describe FETs with channels that form wrap-around contacts (a female portion of a female/male connection) with metal contacts (a male portion of the female/male connection) in order to connect the channels to the drain and source regions. In one embodiment, a first conductive contact is formed underneath a dummy channel. In addition an encapsulation material wraps around the first conductive contact. The dummy channel and the encapsulation material can then be removed and replaced by the material of the channel which, as a result, include a female portion that wraps around the first conductive contact.
    Type: Grant
    Filed: November 30, 2021
    Date of Patent: March 19, 2024
    Assignee: International Business Machines Corporation
    Inventors: Julien Frougier, Ruilong Xie, Kangguo Cheng, Chanro Park, Andrew Gaul
  • Publication number: 20240072041
    Abstract: Techniques for co-integrating gate-all-around nanosheet devices having bottom dielectric isolation with an ideal vertical P-N-P diode on a common substrate are provided. In one aspect, a semiconductor structure includes: a diode in a first region of a bulk substrate, where the diode includes P-N-P vertical implanted layers present in the bulk substrate, and a single source/drain region epitaxial material disposed on the P-N-P vertical implanted layers; and a nanosheet device with a bottom dielectric isolation layer in a second region of the bulk substrate. The nanosheet device can include nanosheet channels and gates that surround a portion of each of the nanosheet channels in a gate-all-around configuration. A method of fabricating the present semiconductor structures is also provided.
    Type: Application
    Filed: August 24, 2022
    Publication date: February 29, 2024
    Inventors: Andrew Gaul, Anthony I. Chou, Julien Frougier, Andrew M. Greene
  • Patent number: 11742350
    Abstract: Embodiments of the present invention are directed to fabrication methods and resulting structures that provide metal gate N/P boundary control in an integrated circuit (IC) using an active gate cut and recess processing scheme. In a non-limiting embodiment of the invention, a gate cut is formed in an N/P boundary between an n-type field effect transistor (FET) and a p-type FET. A first portion of a first work function metal is removed over a channel region of the n-type FET. The gate cut prevents etching a second portion of the first work function metal. The first portion of the first work function metal is replaced with a second work function metal. The gate cut is recessed, and a conductive region is formed on the recessed surface of the gate cut. The conductive region provides electrical continuity across the N/P boundary.
    Type: Grant
    Filed: September 23, 2021
    Date of Patent: August 29, 2023
    Assignee: International Business Machines Corporation
    Inventors: Andrew Gaul, Chanro Park, Julien Frougier, Ruilong Xie, Andrew M. Greene, Christopher J. Waskiewicz
  • Publication number: 20230178587
    Abstract: An approach provides a metal-insulator-metal capacitor with a comb-like structure. The metal-insulator-metal capacitor includes a first electrode material forming a central, vertical portion of the first electrode metal and two sets of stacked horizontal portions of the first electrode metal. An insulator material surrounds the first electrode metal and exposes a top surface of the central, vertical portion of the first electrode metal. The metal-insulator-metal capacitor includes a second electrode material surrounding the insulator material. The metal-insulator-metal capacitor includes a first electrode contact connecting to the top surface of the central, vertical portion of the first electrode metal and a second electrode contact connecting to a top surface of the second electrode material.
    Type: Application
    Filed: December 5, 2021
    Publication date: June 8, 2023
    Inventors: Julien Frougier, Ruilong Xie, Veeraraghavan S. Basker, Andrew Gaul
  • Publication number: 20230170394
    Abstract: Embodiments herein describe FETs with channels that form wrap-around contacts (a female portion of a female/male connection) with metal contacts (a male portion of the female/male connection) in order to connect the channels to the drain and source regions. In one embodiment, a first conductive contact is formed underneath a dummy channel. In addition an encapsulation material wraps around the first conductive contact. The dummy channel and the encapsulation material can then be removed and replaced by the material of the channel which, as a result, include a female portion that wraps around the first conductive contact.
    Type: Application
    Filed: November 30, 2021
    Publication date: June 1, 2023
    Inventors: Julien FROUGIER, Ruilong XIE, Kangguo CHENG, Chanro PARK, Andrew GAUL
  • Publication number: 20230170396
    Abstract: Embodiments herein describe FETs with channels connected on the sides to a metal liner. To avoid the difficulties of connecting the sides of the channels to metal liners for the drain and source regions, the embodiments herein form a male/female contact between the channels and the metal liners. In one embodiment, instead of exposing only the end or side surfaces of the channels, an end knob of the channel is exposed. This knob can include the side surface as well as a portion of the top, bottom, front, and back sides of the channel. As such, when the metal liner is deposited on the knob, this metal forms an electrical connection on all sides of the knob. This male/female connection provides a more reliable and lower resistance connection between the channel and the metal liner than using only the end or side surfaces of the channel.
    Type: Application
    Filed: November 30, 2021
    Publication date: June 1, 2023
    Inventors: Julien Frougier, Ruilong Xie, Kangguo Cheng, Chanro Park, Andrew Gaul
  • Publication number: 20230143317
    Abstract: A semiconductor device includes a first gate upon a semiconductor substrate and a second gate upon the semiconductor substrate in line with the first gate. A gate cut dielectric is between the first gate and the second gate. A first gate cap is upon a top surface of the first gate and a second gate cap is upon a top surface of the second gate. A gate cut multilayer structure is between the first gate cap and the second gate cap. The gate cut multilayer structure includes a dielectric between a first substantially vertical spacer and a second substantially vertical spacer. A first sidewall of the multilayer structure is coplanar with an end of the first gate and a second opposing sidewall of the multilayer structure is coplanar with an end of the second gate.
    Type: Application
    Filed: November 11, 2021
    Publication date: May 11, 2023
    Inventors: CHANRO PARK, Andrew M. Greene, Andrew Gaul, Ruilong Xie
  • Patent number: 11646306
    Abstract: An apparatus that includes a substrate divided into a plurality of different regions, where the substrate remains physically together. A first device located in a first region of the plurality of different regions, where the first device has a first height. A second device located in a second region of the plurality of different regions. The second device has a second height and the second device is a different device from the first device. A third device located in a third region of the plurality of different regions. The third device has a third height and the third device is a different device from the first device and the second device. The second height is smaller than the first height.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: May 9, 2023
    Assignee: International Business Machines Corporation
    Inventors: Julien Frougier, Veeraraghavan S. Basker, Andrew Gaul, Ruilong Xie
  • Publication number: 20230105783
    Abstract: Semiconductor structures are disclosed which comprise semiconductor devices having thin multi-layer channel stacks. In one example, a semiconductor structure comprises a gate structure comprising a multi-layer channel stack. The multi-layer channel stack comprises a first dielectric layer, a second dielectric layer, and a channel layer disposed between the first and second dielectric layers. The semiconductor structure further comprises a first source/drain region disposed on a first side of the gate structure and in electrical contact with a first end portion of the multi-layer channel stack and a second source/drain region disposed on a second side of the gate structure and in electrical contact with a second end portion of the multi-layer channel stack.
    Type: Application
    Filed: September 27, 2021
    Publication date: April 6, 2023
    Inventors: ANDREW GAUL, Julien Frougier, Ruilong Xie, Andrew M. Greene, Christopher J. Waskiewicz, Kangguo Cheng
  • Publication number: 20230093343
    Abstract: A stacked device is provided. The stacked device includes a plurality of dielectric support bridges on a substrate, and a first two-dimensional (2D) channel layer on each of the plurality of dielectric support bridges. The stacked device further includes a gate dielectric sheet on the first two-dimensional (2D) channel layer, and a second two-dimensional (2D) channel layer on the first two-dimensional (2D) channel layer. The stacked device further includes a second gate dielectric layer on the gate dielectric sheets.
    Type: Application
    Filed: September 23, 2021
    Publication date: March 23, 2023
    Inventors: Andrew Gaul, Julien Frougier, Ruilong Xie, Andrew M. Greene, Christopher J. Waskiewicz
  • Publication number: 20230086785
    Abstract: Embodiments of the present invention are directed to fabrication methods and resulting structures that provide metal gate N/P boundary control in an integrated circuit (IC) using an active gate cut and recess processing scheme. In a non-limiting embodiment of the invention, a gate cut is formed in an N/P boundary between an n-type field effect transistor (FET) and a p-type FET. A first portion of a first work function metal is removed over a channel region of the n-type FET. The gate cut prevents etching a second portion of the first work function metal. The first portion of the first work function metal is replaced with a second work function metal. The gate cut is recessed, and a conductive region is formed on the recessed surface of the gate cut. The conductive region provides electrical continuity across the N/P boundary.
    Type: Application
    Filed: September 23, 2021
    Publication date: March 23, 2023
    Inventors: Andrew Gaul, CHANRO PARK, Julien Frougier, Ruilong Xie, Andrew M. Greene, Christopher J. Waskiewicz
  • Publication number: 20220310590
    Abstract: An apparatus comprising a substrate divided into a plurality of different regions, wherein the substrate remains physically together. A first device located in a first region of the plurality of different regions, wherein the first device has a first height. A second device located in a second region of the plurality of different regions, wherein the second device has a second height, wherein the second device is a different device from the first device. A third device located in a third region of the plurality of different regions, wherein the third device has a third height, wherein the third device is a different device from the first device and the second device. Wherein the second height is smaller than the first height.
    Type: Application
    Filed: March 24, 2021
    Publication date: September 29, 2022
    Inventors: Julien Frougier, Veeraraghavan S. Basker, Andrew Gaul, Ruilong Xie
  • Patent number: 11016933
    Abstract: Techniques to manage the use of hash functions are disclosed. In various embodiments, a hash function epoch metadata is stored to associate a hash function with an epoch, the epoch defining a subset of data stored by a distributed file system. The distributed file system is configured to use the hash function epoch metadata to manage storage of data comprising the subset of data stored by the distributed file system.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: May 25, 2021
    Assignee: EMC IP Holding Company LLC
    Inventors: Mahadev Satyanarayanan, Niraj Tolia, Andrew Gaul
  • Publication number: 20190188183
    Abstract: Techniques to manage the use of hash functions are disclosed. In various embodiments, a hash function epoch metadata is stored to associate a hash function with an epoch, the epoch defining a subset of data stored by a distributed file system. The distributed file system is configured to use the hash function epoch metadata to manage storage of data comprising the subset of data stored by the distributed file system.
    Type: Application
    Filed: February 7, 2019
    Publication date: June 20, 2019
    Inventors: Mahadev Satyanarayanan, Niraj Tolia, Andrew Gaul
  • Patent number: 10242015
    Abstract: Techniques to manage the use of hash functions are disclosed. In various embodiments, a hash function epoch metadata is stored to associate a hash function with an epoch, the epoch defining a subset of data stored by a distributed file system. The distributed file system is configured to use the hash function epoch metadata to manage storage of data comprising the subset of data stored by the distributed file system.
    Type: Grant
    Filed: August 18, 2015
    Date of Patent: March 26, 2019
    Assignee: EMC IP Holding Company LLC
    Inventors: Mahadev Satyanarayanan, Niraj Tolia, Andrew Gaul
  • Patent number: 9178860
    Abstract: A method in data storage involves receiving at a metadata server from a client device a BEGIN_WRITE request identifying data to be written by hashes, consulting, by the metadata server a deduplication table to determine historical nature of the data determined to be written, determining that the data was never previously written, was previously written by another client, or was previously written but failed a verification, sending to the client device write locations with tokens for the data, starting an authentication timer, and authorizing the client device to write directly to the data server using the authentication tokens and the authenticated write locations, determining that the data was previously written by the same client, or that the data was previously written and passed the verification test, notifying the client of this circumstance, and receiving from the client device an END_WRITE request.
    Type: Grant
    Filed: August 22, 2013
    Date of Patent: November 3, 2015
    Assignee: Maginatics, Inc.
    Inventors: Niraj Tolia, Diwaker Gupta, Andrew Gaul
  • Publication number: 20150058935
    Abstract: A method in data storage involves receiving at a metadata server from a client device a BEGIN_WRITE request identifying data to be written by hashes, consulting, by the metadata server a deduplication table to determine historical nature of the data determined to be written, determining that the data was never previously written, was previously written by another client, or was previously written but failed a verification, sending to the client device write locations with tokens for the data, starting an authentication timer, and authorizing the client device to write directly to the data server using the authentication tokens and the authenticated write locations, determining that the data was previously written by the same client, or that the data was previously written and passed the verification test, notifying the client of this circumstance, and receiving from the client device an END_WRITE request.
    Type: Application
    Filed: August 22, 2013
    Publication date: February 26, 2015
    Applicant: Maginatics, Inc.
    Inventors: Niraj Tolia, Diwaker Gupta, Andrew Gaul