Patents by Inventor Carl Radens

Carl Radens 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: 20230079751
    Abstract: An approach provides a semiconductor structure for a first device with a first plurality of channels with a larger horizontal dimension than a vertical dimension of the first plurality of channels a second device comprising a second plurality of channels with a smaller horizontal dimension than the vertical dimension of the second plurality of channels. The first plurality of channels and the second plurality of channels have a same channel width in embodiments of the present invention. The first device is an n-type horizontal gate-all-around device and the second device is a p-type horizontal gate-all-around device.
    Type: Application
    Filed: September 13, 2021
    Publication date: March 16, 2023
    Inventors: Ruilong Xie, Kangguo Cheng, JUNTAO LI, Carl Radens
  • Publication number: 20230082961
    Abstract: A memory device is provided. The memory device includes a ReRAM memory element, and a PCM memory element that is electrically connected in parallel with the ReRAM memory element.
    Type: Application
    Filed: September 10, 2021
    Publication date: March 16, 2023
    Inventors: JUNTAO LI, KANGGUO CHENG, CARL RADENS, RUILONG XIE
  • Publication number: 20230054701
    Abstract: An approach for a nanosheet device with a single diffusion break is disclosed. The device comprises of active gate is formed above the BDI. At least the SDB is also formed over BDI with dielectric filled gate. The dielectric fill forms an indentation into the remaining nanosheets, under the spacer region, or between the inner spacers, in the SDB region. The method of creating the device comprises of, forming a gate cut opening between two ends of a dummy gate of one or more gates; forming a first sacrificial material on the gate cut opening; creating a single diffusion break; removing the dummy gate and oxide layer; removing, selectively a second sacrificial material; trimming, selectively stack of nanosheets; and forming dielectric in the gate cut opening and the single diffusion break.
    Type: Application
    Filed: August 19, 2021
    Publication date: February 23, 2023
    Inventors: Ruilong Xie, Kangguo Cheng, JUNTAO LI, Carl Radens
  • Patent number: 11588104
    Abstract: Embodiments of the present invention include a memory cell that has a vertically-oriented fin. The memory cell may also include a resistive memory device located on a first lateral side of the fin. The resistive memory device may include a bottom electrode, a top electrode, and a resistive element between the bottom electrode and the top electrode. The memory cell may also include a vertical field-effect transistor having a metal gate and a gate dielectric contacting a second lateral side of the fin opposite the first lateral side.
    Type: Grant
    Filed: June 14, 2021
    Date of Patent: February 21, 2023
    Assignee: International Business Machines Corporation
    Inventors: Kangguo Cheng, Carl Radens, Ruilong Xie, Juntao Li
  • Publication number: 20220416161
    Abstract: A ring-shaped heater, system, and method to gradually change the conductance of the phase change memory through a concentric ring-shaped heater. The system may include a phase change memory. The phase change memory may include a bottom electrode. The phase change memory may also include a ring-shaped heater patterned on top of the bottom electrode, the ring-shaped heater including: a plurality of concentric conductive heating layers, and a plurality of insulator spacers, where each insulator spacer separates each conductive heating layer. The phase change memory may also include a phase change material proximately connected to the ring-shaped heater. The phase change memory may also include a top electrode proximately connected to the phase change material.
    Type: Application
    Filed: June 25, 2021
    Publication date: December 29, 2022
    Inventors: Kangguo Cheng, Carl Radens, JUNTAO LI, Ruilong Xie, Praneet Adusumilli, Oscar van der Straten, Alexander Reznicek
  • Publication number: 20220416157
    Abstract: A phase change memory, system, and method for gradually changing the conductance and resistance of the phase change memory while preventing resistance drift. The phase change memory may include a phase change material. The phase change memory may also include a bottom electrode. The phase change memory may also include a heater core proximately connected to the bottom electrode. The phase change memory may also include a set of conductive rings surrounding the heater core, where the set of conductive rings comprises one or more conductive rings, and where the set of conductive rings are proximately connected to the phase change material. The phase change memory may also include a set of spacers, where a spacer, from the set of spacers, separates a portion of a conductive ring, from the set of conductive rings, from the heater core.
    Type: Application
    Filed: September 30, 2021
    Publication date: December 29, 2022
    Inventors: Kangguo Cheng, Carl Radens, Juntao Li, Ruilong Xie, Praneet Adusumilli, Oscar van der Straten, Alexander Reznicek, Zuoguang Liu, Arthur Gasasira
  • Publication number: 20220399491
    Abstract: Embodiments of the present invention include a memory cell that has a vertically-oriented fin. The memory cell may also include a resistive memory device located on a first lateral side of the fin. The resistive memory device may include a bottom electrode, a top electrode, and a resistive element between the bottom electrode and the top electrode. The memory cell may also include a vertical field-effect transistor having a metal gate and a gate dielectric contacting a second lateral side of the fin opposite the first lateral side.
    Type: Application
    Filed: June 14, 2021
    Publication date: December 15, 2022
    Inventors: Kangguo Cheng, Carl Radens, Ruilong Xie, Juntao Li
  • Publication number: 20220399493
    Abstract: A phase change memory (PCM) cell comprising a substrate a first electrode located on the substrate. A phase change material layer located adjacent to the first electrode, wherein a first side of the phase change material layer is in direct contact with the first electrode. A second electrode located adjacent to phase change material layer, wherein the second electrode is in direct contact with a second side of the phase change material layer, wherein the first side and the second side are different sides of the phase change material layer. An airgap is located directly above the phase change material layer, wherein the airgap provides space for the phase change material to expand or restrict.
    Type: Application
    Filed: June 9, 2021
    Publication date: December 15, 2022
    Inventors: Kangguo Cheng, Ruilong Xie, Carl Radens, JUNTAO LI
  • Publication number: 20220302377
    Abstract: A semiconductor structure for a vertical phase change memory cell that includes a bottom electrode on a portion of a semiconductor substrate and a pair of vertical phase change bridge elements that are each on a portion of the bottom electrode. The semiconductor structure for the vertical phase change memory cell includes a dielectric material separating the pair of vertical phase change bridge elements and a top electrode over the pair of vertical phase change bridge elements.
    Type: Application
    Filed: March 22, 2021
    Publication date: September 22, 2022
    Inventors: JUNTAO LI, Kangguo Cheng, Carl Radens, Ruilong Xie
  • Publication number: 20220246739
    Abstract: A method of fabricating a static random-access memory (SRAM) device includes forming a sacrificial material and replacing the sacrificial material with a metal to form a cross-couple contact on a metal gate stack. A portion of the metal gate stack directly contacts each of a sidewall and an endwall of the cross-couple contact.
    Type: Application
    Filed: April 13, 2022
    Publication date: August 4, 2022
    Inventors: Ruilong Xie, Carl Radens, Kangguo Cheng, Veeraraghavan S. Basker, Juntao Li
  • Patent number: 11349001
    Abstract: A method of fabricating a static random-access memory (SRAM) device includes forming a sacrificial material and replacing the sacrificial material with a metal to form a cross-couple contact on a metal gate stack. A portion of the metal gate stack directly contacts each of a sidewall and an endwall of the cross-couple contact.
    Type: Grant
    Filed: October 10, 2019
    Date of Patent: May 31, 2022
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Ruilong Xie, Carl Radens, Kangguo Cheng, Veeraraghavan Basker, Juntao Li
  • Publication number: 20220165944
    Abstract: A non-volatile memory structure, and methods of manufacture, which may include a first memory element and a second memory element between a first terminal and a second terminal. The first memory element and the second memory element may be in parallel with each other between the first and second terminal. This may enable the hybrid non-volatile memory structure to store values as a combination of the conductance for each memory element, thereby enabling better tuning of set and reset conductance parameters.
    Type: Application
    Filed: November 20, 2020
    Publication date: May 26, 2022
    Inventors: Kangguo Cheng, Carl Radens, Ruilong Xie, Juntao Li
  • Patent number: 11322402
    Abstract: A semiconductor device includes a base structure including a lower level via and a lower level dielectric layer, a conductive pillar including an upper level line and an upper level via disposed on the lower level via, and a protective structure disposed between the lower level via and the upper level line. The protective structure includes a material having an etch rate less than or equal to that of the lower level via.
    Type: Grant
    Filed: August 14, 2019
    Date of Patent: May 3, 2022
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Ruilong Xie, Chih-Chao Yang, Carl Radens, Juntao Li, Kangguo Cheng
  • Patent number: 11251288
    Abstract: Embodiments of the present invention are directed to methods and resulting structures for nanosheet devices having asymmetric gate stacks. In a non-limiting embodiment of the invention, a nanosheet stack is formed over a substrate. The nanosheet stack includes alternating semiconductor layers and sacrificial layers. A sacrificial liner is formed over the nanosheet stack and a dielectric gate structure is formed over the nanosheet stack and the sacrificial liner. A first inner spacer is formed on a sidewall of the sacrificial layers. A gate is formed over channel regions of the nanosheet stack. The gate includes a conductive bridge that extends over the substrate in a direction orthogonal to the nanosheet stack. A second inner spacer is formed on a sidewall of the gate. The first inner spacer is formed prior to the gate stack, while the second inner spacer is formed after, and consequently, the gate stack is asymmetrical.
    Type: Grant
    Filed: May 18, 2020
    Date of Patent: February 15, 2022
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Ruilong Xie, Carl Radens, Kangguo Cheng, Juntao Li, Dechao Guo, Tao Li, Tsung-Sheng Kang
  • Publication number: 20220045193
    Abstract: Embodiments of the present invention are directed to methods and resulting structures for nanosheet devices having asymmetric gate stacks. In a non-limiting embodiment of the invention, a nanosheet stack is formed over a substrate. The nanosheet stack includes alternating semiconductor layers and sacrificial layers. A sacrificial liner is formed over the nanosheet stack and a dielectric gate structure is formed over the nanosheet stack and the sacrificial liner. A first inner spacer is formed on a sidewall of the sacrificial layers. A gate is formed over channel regions of the nanosheet stack. The gate includes a conductive bridge that extends over the substrate in a direction orthogonal to the nanosheet stack. A second inner spacer is formed on a sidewall of the gate. The first inner spacer is formed prior to the gate stack, while the second inner spacer is formed after, and consequently, the gate stack is asymmetrical.
    Type: Application
    Filed: October 21, 2021
    Publication date: February 10, 2022
    Inventors: Ruilong Xie, Carl Radens, Kangguo Cheng, JUNTAO LI, Dechao Guo, Tao Li, Tsung-Sheng Kang
  • Publication number: 20210406181
    Abstract: A method for using a distributed memory device in a memory augmented neural network system includes receiving, by a controller, an input query to access data stored in the distributed memory device, the distributed memory device comprising a plurality of memory banks. The method further includes determining, by the controller, a memory bank selector that identifies a memory bank from the distributed memory device for memory access, wherein the memory bank selector is determined based on a type of workload associated with the input query. The method further includes computing, by the controller and by using content based access, a memory address in the identified memory bank. The method further includes generating, by the controller, an output in response to the input query by accessing the memory address.
    Type: Application
    Filed: September 13, 2021
    Publication date: December 30, 2021
    Inventors: Ahmet Serkan OZCAN, Tomasz KORNUTA, Carl RADENS, Nicolas ANTOINE
  • Publication number: 20210359103
    Abstract: Embodiments of the present invention are directed to methods and resulting structures for nanosheet devices having asymmetric gate stacks. In a non-limiting embodiment of the invention, a nanosheet stack is formed over a substrate. The nanosheet stack includes alternating semiconductor layers and sacrificial layers. A sacrificial liner is formed over the nanosheet stack and a dielectric gate structure is formed over the nanosheet stack and the sacrificial liner. A first inner spacer is formed on a sidewall of the sacrificial layers. A gate is formed over channel regions of the nanosheet stack. The gate includes a conductive bridge that extends over the substrate in a direction orthogonal to the nanosheet stack. A second inner spacer is formed on a sidewall of the gate. The first inner spacer is formed prior to the gate stack, while the second inner spacer is formed after, and consequently, the gate stack is asymmetrical.
    Type: Application
    Filed: May 18, 2020
    Publication date: November 18, 2021
    Inventors: Ruilong Xie, Carl Radens, Kangguo Cheng, JUNTAO LI, Dechao Guo, Tao Li, Tsung-Sheng Kang
  • Publication number: 20210357138
    Abstract: In a deep neural network (DNN), weights are defined that represent a strength of connections between different neurons of the DNN and activations are defined that represent an output produced by a neuron after passing through an activation function of receiving an input and producing an output based on some threshold value. The weight traffic associated with a hybrid memory therefore is distinguished from the activation traffic to the hybrid memory, and one or more data structures may be dynamically allocated in the hybrid memory according to the weights and activations of the or more data structures in the DNN. The hybrid memory includes at least a first memory and a second memory that differ according to write endurance attributes.
    Type: Application
    Filed: May 13, 2020
    Publication date: November 18, 2021
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Ashish RANJAN, Arvind KUMAR, Carl RADENS
  • Patent number: 11175844
    Abstract: In a deep neural network (DNN), weights are defined that represent a strength of connections between different neurons of the DNN and activations are defined that represent an output produced by a neuron after passing through an activation function of receiving an input and producing an output based on some threshold value. The weight traffic associated with a hybrid memory therefore is distinguished from the activation traffic to the hybrid memory, and one or more data structures may be dynamically allocated in the hybrid memory according to the weights and activations of the one or more data structures in the DNN. The hybrid memory includes at least a first memory and a second memory that differ according to write endurance attributes.
    Type: Grant
    Filed: May 13, 2020
    Date of Patent: November 16, 2021
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Ashish Ranjan, Arvind Kumar, Carl Radens
  • Patent number: 11176043
    Abstract: A method for using a distributed memory device in a memory augmented neural network system includes receiving, by a controller, an input query to access data stored in the distributed memory device, the distributed memory device comprising a plurality of memory banks. The method further includes determining, by the controller, a memory bank selector that identifies a memory bank from the distributed memory device for memory access, wherein the memory bank selector is determined based on a type of workload associated with the input query. The method further includes computing, by the controller and by using content based access, a memory address in the identified memory bank. The method further includes generating, by the controller, an output in response to the input query by accessing the memory address.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: November 16, 2021
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Ahmet Serkan Ozcan, Tomasz Kornuta, Carl Radens, Nicolas Antoine