Patents by Inventor Albert M. Chu

Albert M. Chu 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: 20240079462
    Abstract: A semiconductor structure comprises a vertical transistor, a first contact connecting to a source/drain region at a first side of the vertical transistor, a second contact extending from the first side of the vertical transistor to a second side of the vertical transistor, and an interconnect structure at the first side of the vertical transistor connecting the first contact to the second contact.
    Type: Application
    Filed: September 1, 2022
    Publication date: March 7, 2024
    Inventors: Ruilong Xie, Brent A. Anderson, Lawrence A. Clevenger, Nicholas Anthony Lanzillo, Reinaldo Vega, Albert M. Chu
  • 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: 20240071920
    Abstract: A semiconductor apparatus includes a substrate; a first conductive feature disposed on the substrate, the first conductive feature comprising a conductive material; a second conductive feature disposed on the substrate, the second conductive feature comprising the conductive material; a dielectric material at least partially surrounding the first conductive feature and the second conductive feature; and an interconnect between the first conductive feature and the second conductive feature, the interconnect comprising the conductive material integral with the first conductive feature and the second conductive feature and extending through the dielectric material and below the first conductive feature and the second conductive feature.
    Type: Application
    Filed: August 26, 2022
    Publication date: February 29, 2024
    Inventors: Nicholas Anthony Lanzillo, Brent A. Anderson, Albert M. Chu, Lawrence A. Clevenger, Ruilong Xie, Reinaldo Vega
  • Publication number: 20240071926
    Abstract: A semiconductor structure includes a first field-effect transistor having a first back side source/drain contact, a second back side source/drain contact, and a first power line and a first signal line each connected to the first back side source/drain contact and the second back side source/drain contact, respectively. The semiconductor structure further includes a second field-effect transistor vertically stacked above the first field-effect transistor. The second field-effect transistor having a first front side source/drain contact, a second front side source/drain contact, and a first power line and a first signal line each connected to the first front side source/drain contact and the second front side source/drain contact, respectively.
    Type: Application
    Filed: August 31, 2022
    Publication date: February 29, 2024
    Inventors: Tao Li, Ruilong Xie, David Wolpert, Albert M. Chu
  • Publication number: 20240072035
    Abstract: A circuit is presented including a plurality of cells separated by a plurality of cell boundaries and at least one curved gate cut region disposed over a curved cell boundary of the plurality of cell boundaries. The at least one curved gate cut region separates a reduced active area from a widened active area. The reduced active area is defined above the curved cell boundary and the widened active area is defined below the curved cell boundary.
    Type: Application
    Filed: August 31, 2022
    Publication date: February 29, 2024
    Inventors: Ruilong Xie, Indira Seshadri, Cheng Chi, Albert M. Chu
  • 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
  • Publication number: 20240063223
    Abstract: An approach forming semiconductor structure composed of a first plurality of vertical transport field-effect transistors in a lower semiconductor layer and a second plurality of vertical transport field-effect transistors in an upper semiconductor layer. The second plurality of vertical transport field-effect transistors is horizontally offset from the first plurality of vertical transport field-effect transistors by a horizontal distance that is one-half of a contacted gate pitch between adjacent vertical transport field-effect transistors in the same semiconductor layer.
    Type: Application
    Filed: August 22, 2022
    Publication date: February 22, 2024
    Inventors: Brent A. Anderson, Hemanth Jagannathan, Junli Wang, Albert M. Chu
  • Publication number: 20240055477
    Abstract: Embodiments of the invention include a first source region and a first drain region forming a first L-shaped layout. Embodiments include a second source region and a second drain region forming a second L-shaped layout, the first L-shaped layout and the second L-shaped layout being interrupted by a gate.
    Type: Application
    Filed: August 11, 2022
    Publication date: February 15, 2024
    Inventors: Ruilong Xie, Nicholas Anthony Lanzillo, Albert M. Chu, DANIEL JAMES DECHENE, Eric Miller, Lawrence A. Clevenger
  • Publication number: 20240047341
    Abstract: Interconnect designs with reduced via resistance are provided. In one aspect, an interconnect structure includes: at least a first metal line and a second metal line; and a conductive via in between the first metal line and the second metal line, wherein the conductive via has elongated dimensions along a major axis of the first metal line and along a major axis of the second metal line. Dielectric caps can be present on the first metal lines, and below and above the second metal lines. A method of forming the present interconnect structure is also provided.
    Type: Application
    Filed: August 3, 2022
    Publication date: February 8, 2024
    Inventors: Ruilong Xie, Nicholas Anthony Lanzillo, Brent A. Anderson, Reinaldo Vega, Albert M. Chu, Lawrence A. Clevenger
  • Publication number: 20240038656
    Abstract: A microelectronic structure comprises a first interconnect line at a first interconnect level, a second interconnect line at a second interconnect level, and at least one via connecting the first interconnect line at the first interconnect level to the second interconnect line at the second interconnect level. The at least one via comprises a vertical section and at least one horizontal section, the at least one horizontal section being in contact with at least a portion of one of a top surface of the first interconnect line and a bottom surface of the second interconnect line.
    Type: Application
    Filed: August 1, 2022
    Publication date: February 1, 2024
    Inventors: Ruilong Xie, Lawrence A. Clevenger, Albert M. Chu, Brent A. Anderson, Nicholas Anthony Lanzillo
  • Publication number: 20240014135
    Abstract: A semiconductor device including a first source/drain region (S/D) located on a frontside of a substrate, wherein the first source/drain region has a first width, a second S/D region located on the frontside of the substrate, wherein the second source/drain region is located above the first source drain region, wherein the second source/drain region has second width, wherein the first width is larger than the second width, a first power rail located on a backside of the substrate, a second power rail located on the backside of the substrate, a first connector in contact with the first source/drain region, wherein the first connector is only in contact with a sidewall of the first source/drain region, and a second connector in contact with the second source/drain region, wherein the second connector is in contact with a top surface and a side surface of the second source/drain region.
    Type: Application
    Filed: July 7, 2022
    Publication date: January 11, 2024
    Inventors: Junli Wang, Albert M. Chu, Albert M. Young, Chen Zhang, Su Chen Fan, Ruilong Xie
  • Publication number: 20240006313
    Abstract: Provided is a semiconductor device. The semiconductor device comprises a plurality of logic devices. The logic devices have frontside wiring. The semiconductor device further comprises a backside power delivery network (BSPDN). The semiconductor device further comprises a connection between the BSPDN and the bottom of a source/drain epitaxy of a logic device. The connection is self-aligned on at least two sides.
    Type: Application
    Filed: June 29, 2022
    Publication date: January 4, 2024
    Inventors: Brent A. Anderson, Ruilong Xie, Junli Wang, Albert M. Chu
  • Publication number: 20240008242
    Abstract: A semiconductor device is provided that includes at least one stacked FET device including two top transistors stacked over a single bottom transistor. The at least one stacked FET includes a full gate cut structure that is used to separate different device areas from each other, a top gate cut structure that used to separate the two top transistors, and a bottom gate cut structure that is used to provide the single bottom transistor. The at least one FET device can be used to provide a SRAM containing six transistors.
    Type: Application
    Filed: June 30, 2022
    Publication date: January 4, 2024
    Inventors: Ruilong Xie, Carl Radens, Albert M. Chu, Brent A. Anderson, Junli Wang, Julien Frougier, Ravikumar Ramachandran
  • Publication number: 20230420359
    Abstract: A semiconductor device is provided. The semiconductor device includes a field effect transistor (FET) including first and second source/drain (S/D) epitaxial regions. The semiconductor device also includes a gate cut region at cell boundaries between the first and second S/D epitaxial regions, a dielectric liner and a dielectric core formed in the gate cut region, and a backside power rail (BPR) and a backside power distribution network (BSPDN). The semiconductor device also includes a power via passing through the dielectric core and connecting to the BPR and BSPDN, first metal contacts formed in contact with the first and second S/D epitaxial regions, and a via to backside power rail (VBPR) contact. The dielectric liner separates the power via from the first S/D epitaxial region.
    Type: Application
    Filed: June 22, 2022
    Publication date: December 28, 2023
    Inventors: Ruilong Xie, Junli Wang, Kisik Choi, Julien Frougier, Reinaldo Vega, Lawrence A. Clevenger, Albert M. Chu, Brent A. Anderson
  • Publication number: 20230420502
    Abstract: A field effect transistor (“FET”) stack, including a lower FET, and an upper FET, a first contact to a lower source drain of the lower FET, a first silicide between the first contact and the lower source drain, the first contact is adjacent to a vertical side surface of the lower source drain, a first overlap region between the first silicide and the first contact is less than a second overlap region between the first silicide and the first source drain. The first contact has a reverse tapper metal stud profile. Forming a first contact to a lower source drain of a lower FET of an FET stack, forming a first silicide between the first contact and the lower source drain, the first contact is adjacent to a vertical side surface of the lower source drain.
    Type: Application
    Filed: June 22, 2022
    Publication date: December 28, 2023
    Inventors: Heng Wu, Junli Wang, Ruilong Xie, Albert M. Young, Albert M. Chu, Brent A. Anderson, Ravikumar Ramachandran
  • Publication number: 20230420371
    Abstract: Embodiments are disclosed for a complementary metal oxide semiconductor (CMOS) device. The CMOS device includes a hybrid cross-couple contact. The hybrid cross-couple contact includes a frontside contact to a gate of the CMOS device. The frontside contact is disposed on a frontside of the CMOS device. The hybrid cross-couple contact includes a source contact to a source of the CMOS device. The source contact is disposed on a backside of the CMOS device. The hybrid cross-couple contact includes a drain contact to a drain of the CMOS device. The drain contact is disposed on a backside of the CMOS device.
    Type: Application
    Filed: June 27, 2022
    Publication date: December 28, 2023
    Inventors: Carl Radens, Ruilong Xie, Albert M. Chu, Brent A. Anderson
  • Publication number: 20230420303
    Abstract: A semiconductor structure including a reliable power rail in stacked field effect transistor technology with unequal device footprints is provided that mitigates, and in some cases even eliminates, shorting risks that are typically associated using long bars in advanced logic applications.
    Type: Application
    Filed: June 22, 2022
    Publication date: December 28, 2023
    Inventors: Albert M. Young, Albert M. Chu, Junli Wang
  • Publication number: 20230420296
    Abstract: Embodiments of the invention include providing interconnects with two-dimensional free zero line end enclosure. A first metal line is formed. A second metal line is connected by a via to the first metal line, the first metal line having a first end with a zero line extension in relation to the via in a first dimension, the second metal line having another first end with a zero line extension in relation to the via in a second dimension perpendicular to the first dimension.
    Type: Application
    Filed: June 23, 2022
    Publication date: December 28, 2023
    Inventors: Ruilong Xie, Albert M. Chu, Nicholas Anthony Lanzillo, Lawrence A. Clevenger, Huai Huang
  • Publication number: 20230411386
    Abstract: A microelectronic structure including a plurality of lower transistors and a plurality of upper transistors, where channels of the upper transistors are staggered from channels of the lower transistors. A lower dielectric pillar located beneath an upper transistor, where the dielectric pillar separates bottom transistors.
    Type: Application
    Filed: June 20, 2022
    Publication date: December 21, 2023
    Inventors: Ruilong Xie, Albert M. Chu, Junli Wang, Brent A. Anderson, Anthony I. Chou, Dechao Guo
  • Publication number: 20230411358
    Abstract: A microelectronic structure including a plurality of lower transistors and a plurality of upper transistor, where each of the plurality of lower transistors and the plurality of upper transistors includes a plurality of channel. Where an upper center vertical axis of each of the plurality of upper transistors is staggered from a lower center vertical axis of each of the lower transistors. A lower gate cut is located between each of the plurality of lower transistors. A first upper gate cut located adjacent to a first upper transistor of the plurality of upper transistors, where the first upper gate cut is in direct contact with a plurality of first channels of the first upper transistor.
    Type: Application
    Filed: June 20, 2022
    Publication date: December 21, 2023
    Inventors: Ruilong Xie, Albert M. Chu, Albert M. Young, Brent A. Anderson, Junli Wang, Ravikumar Ramachandran