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).

  • Patent number: 12113067
    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: Grant
    Filed: September 13, 2021
    Date of Patent: October 8, 2024
    Assignee: International Business Machines Corporation
    Inventors: Ruilong Xie, Kangguo Cheng, Juntao Li, Carl Radens
  • Publication number: 20240321748
    Abstract: A semiconductor structure is presented including a power rail having a non-rectangular shape and a middle-of-line (MOL) contact layer electrically connected to the power rail by a metal wiring layer. The non-rectangular shape of the power rail defines at least one notch. Alternatively, the non-rectangular shape of the power rail defines at least one extension. The power rail can be a via rail or a VARAIL.
    Type: Application
    Filed: March 23, 2023
    Publication date: September 26, 2024
    Inventors: Lawrence A. Clevenger, Albert M. Chu, Geng Han, Brent A. Anderson, Ruilong Xie, Carl Radens, Ravikumar Ramachandran, Mahender Kumar
  • Patent number: 12087691
    Abstract: A semiconductor structure comprises a substrate having a first side and a second side opposite the first side, and a gate for at least one transistor device disposed above the first side of the substrate. The structure may further include a buried power rail at least partially disposed in the substrate and a gate tie-down contact connecting the gate to the buried power rail from the second side of the substrate. The structure may further or alternatively include one or more source/drain regions disposed over the first side of the substrate, and a gate contact connecting to a portion of the gate from the second side of the substrate, the portion of the gate being adjacent to at least one of the one or more source/drain regions.
    Type: Grant
    Filed: September 21, 2021
    Date of Patent: September 10, 2024
    Assignee: International Business Machines Corporation
    Inventors: Ruilong Xie, Julien Frougier, Veeraraghavan S. Basker, Lawrence A. Clevenger, Nicolas Loubet, Dechao Guo, Kisik Choi, Kangguo Cheng, Carl Radens
  • Publication number: 20240204042
    Abstract: A semiconductor device includes a first gate region and a second gate region. A diffusion break region is between the first gate region and the second gate region. A top surface of the diffusion break region is co-planar with at least one of a top surface of one or more gate contacts and a top surface of one or more source/drain contacts.
    Type: Application
    Filed: December 14, 2022
    Publication date: June 20, 2024
    Inventors: Ruilong Xie, Tao Li, Julien Frougier, Susan Ng Emans, Carl Radens, Dureseti Chidambarrao
  • Publication number: 20240196586
    Abstract: A semiconductor structure is provided that includes a stacked transistor including at least one transistor stacked over another transistor and a non-stacked transistor integrated on a same wafer. Both the stacked transistor and the non-stacked transistor include frontside and backside interconnects.
    Type: Application
    Filed: December 9, 2022
    Publication date: June 13, 2024
    Inventors: Brent A. Anderson, Albert M. Chu, Carl Radens, Ruilong Xie
  • Publication number: 20240170313
    Abstract: A method of wafer verification for split manufacturing is provided. The method includes capturing images of one or more different wafer features during manufacturing using a fiducial marker. The method further includes comparing the images from one stage to a next stage for at least two stages of manufacturing to verify a wafer identification based on a matching of the one of more different wafer features from the one stage to the next stage.
    Type: Application
    Filed: November 22, 2022
    Publication date: May 23, 2024
    Inventors: Carl Radens, Kangguo Cheng, Juntao Li, Ruilong Xie
  • Publication number: 20240172408
    Abstract: A stacked layer memory for a SRAM includes a first layer of the SRAM, including multiple transistors of a first type, and includes a second layer of the SRAM, having multiple transistors of a second type. The first and second layers are different layers stacked vertically. A width of individual SRAM cells of the stacked layer memory is defined at least by a pitch of a single transistor of the transistors of the first type and the transistors of the second type. A method for forming the stacked layer memory for the SRAM includes forming the first layer and the second layer. The first and second layers are different layers and are formed to be stacked vertically. A width of individual SRAM cells of the stacked layer memory is defined at least by a pitch of a single transistor of the transistors of the first and second types.
    Type: Application
    Filed: November 21, 2022
    Publication date: May 23, 2024
    Inventors: Brent A. Anderson, Albert M. Chu, Ruilong Xie, Junli Wang, Carl Radens
  • Publication number: 20240162231
    Abstract: Embodiments of the present invention are directed to processing methods and resulting structures for integrated circuits having backside programmable gate arrays. In a non-limiting embodiment, a front end of line structure having an array of transistors is formed such that each transistor of the array of transistors includes one or more placeholder backside vias. A first portion of the backside vias defines one or more placeholder backside vias and a second portion of the one or more backside vias defines one or more programmed backside vias. A back end of line structure is formed on a first surface of the front end of line structure. A backside structure is formed on a second surface of the front end of line structure opposite the first surface. The backside structure includes a backside metallization layer in direct contact with the one or more programmed backside vias.
    Type: Application
    Filed: November 10, 2022
    Publication date: May 16, 2024
    Inventors: Albert M. Chu, Brent A. Anderson, Junli Wang, Albert M. Young, Ruilong Xie, Carl Radens
  • Publication number: 20240164089
    Abstract: Embodiments of the present invention are directed to processing methods and resulting structures having backside programmable memory cells. In a non-limiting embodiment, a front end of line structure having a plurality of programmable cells is formed such that each programmable cell includes a backside via in direct contact with a device region of the respective cell. A first portion of the backside vias defines one or more placeholder backside vias and a second portion defines one or more programmed backside vias. A back end of line structure (word line) is formed on a first surface of the front end of line structure. A backside structure is formed on a second surface of the front end of line structure opposite the first surface. The backside structure includes a backside metallization layer (bit line) in direct contact with the one or more programmed backside vias.
    Type: Application
    Filed: November 10, 2022
    Publication date: May 16, 2024
    Inventors: Albert M. Chu, Junli Wang, Albert M. Young, Brent A. Anderson, Ruilong Xie, Carl Radens
  • Publication number: 20240155822
    Abstract: A semiconductor memory cell comprising six vertical-transport field-effect transistors (VTFET) on a wafer. The six VTFET are in a first layer. The six VTFET are in a first row.
    Type: Application
    Filed: November 8, 2022
    Publication date: May 9, 2024
    Inventors: Brent A. Anderson, Ruilong Xie, Albert M. Chu, Carl Radens
  • Patent number: 11977614
    Abstract: Methods and systems for watermarking a circuit design include defining a watermarked cell library that includes cells, each of which defines a design structure that corresponds to a manufacturable physical structure, at least one of which being a watermarked call that includes a watermark. The watermark is encoded using a design structure that extends beyond a respective cell boundary. A first circuit design file is generated for a device to be manufactured. The first circuit design file including at least one watermarked cell. The first circuit design file is sent to a manufacturer for fabrication of a corresponding device that includes a watermark structure that encodes an identifier.
    Type: Grant
    Filed: September 20, 2021
    Date of Patent: May 7, 2024
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Carl Radens, Lawrence A. Clevenger, Daniel James Dechene, Hsueh-Chung Chen
  • Patent number: 11963469
    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: Grant
    Filed: May 15, 2023
    Date of Patent: April 16, 2024
    Assignee: International Business Machines Corporation
    Inventors: Kangguo Cheng, Ruilong Xie, Carl Radens, Juntao Li
  • Publication number: 20240107900
    Abstract: A phase change memory structure with improved sidewall heater and formation thereof may be presented. Phase change materials are capable of being switched between a first structural state in which the material is in a generally amorphous solid phase, and a second structural state in which the material is in a generally crystalline solid phase in the active region of the cell. Presented herein may be a side wall heater, where the upper section extends through bilayer dielectric to contact a phase change material layer and the lower section of the sidewall heater has conductive layers in contact with the bottom electrode. The width of the sidewall heater may reflect an inverted T shape reducing the current requirement to reset the phase change material.
    Type: Application
    Filed: September 22, 2022
    Publication date: March 28, 2024
    Inventors: Juntao Li, Kangguo Cheng, Carl Radens, Ching-Tzu Chen
  • Publication number: 20240088146
    Abstract: According to the embodiment of the present invention, a semiconductor device includes a first nanodevice and a second nanodevice. The second nanodevice is located adjacent to and parallel to the first nanodevice along a first axis. The first nanodevice and the second nanodevice each include a first section, a second section, and a third section. A first gate cut region is located between the first sections of the first nanodevice and the second nanodevice. A middle gate cut region is located between the second sections of the first nanodevice and the second nanodevice. A third gate cut region is located between the third sections of the first nanodevice and the second nanodevice. The middle gate cut region has different dimensions along a second axis than the first gate cut region and the third gate cut region. A middle section contact is located in the middle gate cut region.
    Type: Application
    Filed: September 12, 2022
    Publication date: March 14, 2024
    Inventors: Ruilong Xie, Albert M. Chu, Carl Radens, Brent A. Anderson
  • Publication number: 20240081037
    Abstract: A field effect transistor (FET) cell structure of an integrated circuit (IC) is provided. The FET cell structure includes first and second adjacent cells. Each of the first and second adjacent cells spans a first layer and a second layer. The second layer is vertically stacked on the first layer. The first cell includes n-doped FETs (NFETs) on one of the first and second layers and p-doped FETs (PFETs) on another of the first and second layers. The second cell includes at least one of a number of NFETs on the one of the first and second layers differing from a number of the NFETs in the first cell and a number of PFETs on the another of the first and second layers differing from a number of the PFETs in the first cell.
    Type: Application
    Filed: September 7, 2022
    Publication date: March 7, 2024
    Inventors: Brent A. Anderson, Albert M. Chu, Junli Wang, Carl Radens, Ruilong Xie
  • Publication number: 20240079316
    Abstract: A semiconductor structure having improved performance is provided that includes a local enlarged via-to-backside power rail (VBPR) contact structure which connects a source/drain region of one field effect transistor (FET) to a backside power rail.
    Type: Application
    Filed: September 6, 2022
    Publication date: March 7, 2024
    Inventors: Ruilong Xie, Albert M. Chu, Carl Radens, Brent A. Anderson
  • Publication number: 20240074333
    Abstract: A semiconductor structure is provided in which a phase change memory (PCM) device region including a PCM is located in a back side of a wafer. A PCM device back side source/drain contact structure connects the PCM to a first source/drain structure of a first field effect transistor (FET) that is present in a front side of the wafer, the second source/drain structure of the first FET is connected to a front side BEOL structure by a front side source/drain contact structure. A logic device region and/or an analog device region can be located laterally adjacent to the PCM device region. A back side power distribution network can be present in the logic device region and/or an analog device region.
    Type: Application
    Filed: August 23, 2022
    Publication date: February 29, 2024
    Inventors: Carl Radens, Ruilong Xie, Kangguo Cheng, Julien Frougier, Juntao Li
  • Publication number: 20240065119
    Abstract: Embodiments of present invention provide a phase change memory (PCM) device. The PCM device includes a first PCM cell with the first PCM cell including an L-shaped phase change element, the L-shaped phase change element having a horizontal portion and a vertical portion on top of the horizontal portion; a selector underneath the horizontal portion of the L-shaped phase change element; a top electrode in contact with a top surface of the vertical portion of the L-shaped phase change element; and a bottom electrode in contact with the selector; and a second PCM cell. A method of manufacturing the PCM device is also provided.
    Type: Application
    Filed: August 18, 2022
    Publication date: February 22, 2024
    Inventors: Kangguo Cheng, Juntao Li, Carl Radens, Ruilong Xie
  • Publication number: 20240064951
    Abstract: A microelectronic structure including a static random-access memory (SRAM) device that includes a plurality of stacked transistors. Each of the plurality of stacked transistors that includes a bottom transistor and an upper transistor, where the upper transistor is not in vertical alignment with the bottom transistor.
    Type: Application
    Filed: August 18, 2022
    Publication date: February 22, 2024
    Inventors: Albert M. Chu, Carl Radens, Ruilong Xie, Brent A. Anderson, Junli Wang
  • Patent number: 11895818
    Abstract: Embodiments of present invention provide a SRAM device. The SRAM device includes a first, a second, and a third SRAM cell each having a first and a second pass-gate (PG) transistor, wherein the second PG transistor of the second SRAM cell and the first PG transistor of the first SRAM cell are stacked in a first PG transistor cell, and the first PG transistor of the third SRAM cell and the second PG transistor of the first SRAM cell are stacked in a second PG transistor cell. The first and second PG transistors of the first SRAM cell may be stacked on top of, or underneath, the second PG transistor of the second SRAM cell and/or the first PG transistor of the third SRAM cell.
    Type: Grant
    Filed: April 26, 2022
    Date of Patent: February 6, 2024
    Assignee: International Business Machines Corporation
    Inventors: Ruilong Xie, Carl Radens, Junli Wang, Ravikumar Ramachandran, Julien Frougier, Dechao Guo