Patents by Inventor Randy W. Mann

Randy W. Mann 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: 20260100223
    Abstract: An exemplary integrated circuit includes a memory array. In the array, each row includes a word line, and each column includes a pair of bit lines. A pre-charge circuit pre-charges the pair of bit lines for each bit line column to a primary operating voltage. A decoder asserts a pair of word lines located in one of the plural bit line columns of the memory array to select a pair of adjacent memory cells. A sense amplifier is connected between the pair of bit lines forming a first column of the plural columns and generates a binary output based on a difference between the read currents of the adjacent memory cells. A verification circuit is connected to determine whether current bit values stored in the adjacent memory cells read by the sense amplifier are consistent with predefined bit values written to the adjacent memory cells based on the binary output.
    Type: Application
    Filed: October 1, 2025
    Publication date: April 9, 2026
    Applicant: Booz Allen Hamilton Inc.
    Inventor: Randy W. MANN
  • Patent number: 11309319
    Abstract: Structures and static random access memory bit cells including complementary field effect transistors and methods of forming such structures and bit cells. A first complementary field-effect transistor has a first storage nanosheet transistor, a second storage nanosheet transistor stacked over the first storage nanosheet transistor, and a first gate electrode shared by the first storage nanosheet transistor and the second storage nanosheet transistor. A second complementary field-effect transistor has a third storage nanosheet transistor, a fourth storage nanosheet transistor stacked over the third storage nanosheet transistor, and a second gate electrode shared by the third storage nanosheet transistor and the fourth storage nanosheet transistor. The first gate electrode and the second gate electrode are arranged in a spaced arrangement along a longitudinal axis. All gate electrodes of the SRAM bitcell may be arranged in a 1CPP layout.
    Type: Grant
    Filed: August 4, 2020
    Date of Patent: April 19, 2022
    Assignee: GlobalFoundries U.S. Inc.
    Inventors: Randy W. Mann, Bipul C. Paul, Julien Frougier, Ruilong Xie
  • Patent number: 11037937
    Abstract: Structures including static random access memory bit cells and methods of forming a structure including static random access memory bit cells. A first bit cell includes a first plurality of semiconductor fins, and a second bit cell includes a second plurality of semiconductor fins. A deep trench isolation region is laterally positioned between the first plurality of semiconductor fins of the first bit cell and the second plurality of semiconductor fins of the second bit cell.
    Type: Grant
    Filed: November 20, 2019
    Date of Patent: June 15, 2021
    Assignee: GLOBALFOUNDRIES U.S. INC.
    Inventors: Meixiong Zhao, Randy W. Mann, Sanjay Parihar, Anton Tokranov, Hong Yu, Hongliang Shen, Guoxiang Ning
  • Publication number: 20210151443
    Abstract: Structures including static random access memory bit cells and methods of forming a structure including static random access memory bit cells. A first bit cell includes a first plurality of semiconductor fins, and a second bit cell includes a second plurality of semiconductor fins. A deep trench isolation region is laterally positioned between the first plurality of semiconductor fins of the first bit cell and the second plurality of semiconductor fins of the second bit cell.
    Type: Application
    Filed: November 20, 2019
    Publication date: May 20, 2021
    Inventors: Meixiong Zhao, Randy W. Mann, Sanjay Parihar, Anton Tokranov, Hong Yu, Hongliang Shen, Guoxiang Ning
  • Publication number: 20200365601
    Abstract: Structures and static random access memory bit cells including complementary field effect transistors and methods of forming such structures and bit cells. A first complementary field-effect transistor has a first storage nanosheet transistor, a second storage nanosheet transistor stacked over the first storage nanosheet transistor, and a first gate electrode shared by the first storage nanosheet transistor and the second storage nanosheet transistor. A second complementary field-effect transistor has a third storage nanosheet transistor, a fourth storage nanosheet transistor stacked over the third storage nanosheet transistor, and a second gate electrode shared by the third storage nanosheet transistor and the fourth storage nanosheet transistor. The first gate electrode and the second gate electrode are arranged in a spaced arrangement along a longitudinal axis. All gate electrodes of the SRAM bitcell may be arranged in a 1CPP layout.
    Type: Application
    Filed: August 4, 2020
    Publication date: November 19, 2020
    Inventors: Randy W. Mann, Bipul C. Paul, Julien Frougier, Ruilong Xie
  • Patent number: 10818674
    Abstract: Structures and static random access memory bit cells including complementary field effect transistors and methods of forming such structures and bit cells. A first complementary field-effect transistor has a first storage nanosheet transistor, a second storage nanosheet transistor stacked over the first storage nanosheet transistor, and a first gate electrode shared by the first storage nanosheet transistor and the second storage nanosheet transistor. A second complementary field-effect transistor has a third storage nanosheet transistor, a fourth storage nanosheet transistor stacked over the third storage nanosheet transistor, and a second gate electrode shared by the third storage nanosheet transistor and the fourth storage nanosheet transistor. The first gate electrode and the second gate electrode are arranged in a spaced arrangement along a longitudinal axis. All gate electrodes of the SRAM bitcell may be arranged in a 1CPP layout.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: October 27, 2020
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Randy W. Mann, Bipul C. Paul, Julien Frougier, Ruilong Xie
  • Publication number: 20200286900
    Abstract: Structures and static random access memory bit cells including complementary field effect transistors and methods of forming such structures and bit cells. A first complementary field-effect transistor has a first storage nanosheet transistor, a second storage nanosheet transistor stacked over the first storage nanosheet transistor, and a first gate electrode shared by the first storage nanosheet transistor and the second storage nanosheet transistor. A second complementary field-effect transistor has a third storage nanosheet transistor, a fourth storage nanosheet transistor stacked over the third storage nanosheet transistor, and a second gate electrode shared by the third storage nanosheet transistor and the fourth storage nanosheet transistor. The first gate electrode and the second gate electrode are arranged in a spaced arrangement along a longitudinal axis. All gate electrodes of the SRAM bitcell may be arranged in a 1CPP layout.
    Type: Application
    Filed: March 7, 2019
    Publication date: September 10, 2020
    Inventors: Randy W. Mann, Bipul C. Paul, Julien Frougier, Ruilong Xie
  • Patent number: 10629602
    Abstract: Structures for a static random access memory (SRAM) bitcell and methods for forming a SRAM bitcell. The SRAM includes a storage element with a first pull-up (PU) vertical-transport field-effect transistor (VTFET) having a first bottom source/drain region and a fin projecting from the first bottom source/drain region, and a second pull-up (PU) VTFET with a second bottom source/drain region and a fin projecting from the second bottom source/drain region. The fin of the first PU VTFET is arranged over a first active region in which the first bottom source/drain region is centrally arranged, and the fin of the second PU VTFET is arranged over a second active region in which the second bottom source/drain region is centrally arranged. The second source/drain region is aligned with the first bottom source/drain region. A read port may be connected with the storage element, and may also be formed using VTFETs.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: April 21, 2020
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Randy W. Mann, Bipul C. Paul
  • Patent number: 10497692
    Abstract: The present disclosure relates to semiconductor structures and, more particularly, to a SRAM structure with alternate gate pitches and methods of manufacture. The structure includes an array of memory cells having a plurality of gate structures with varying gate pitches, the varying gate pitches comprising a first dimension sized for placement of a bitline contact and a second dimension sized for placement of source/drain contacts, the first dimension being larger than the second dimension.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: December 3, 2019
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Hui Zang, Randy W. Mann
  • Publication number: 20190355730
    Abstract: Structures for a static random access memory (SRAM) bitcell and methods for forming a SRAM bitcell. The SRAM includes a storage element with a first pull-up (PU) vertical-transport field-effect transistor (VTFET) having a first bottom source/drain region and a fin projecting from the first bottom source/drain region, and a second pull-up (PU) VTFET with a second bottom source/drain region and a fin projecting from the second bottom source/drain region. The fin of the first PU VTFET is arranged over a first active region in which the first bottom source/drain region is centrally arranged, and the fin of the second PU VTFET is arranged over a second active region in which the second bottom source/drain region is centrally arranged. The second source/drain region is aligned with the first bottom source/drain region. A read port may be connected with the storage element, and may also be formed using VTFETs.
    Type: Application
    Filed: May 18, 2018
    Publication date: November 21, 2019
    Inventors: Randy W. Mann, Bipul C. Paul
  • Patent number: 10439064
    Abstract: A first S/D region includes a first P-type region, a first N-type region, and a first conductive layer thereon to define a first cell node. A second S/D region includes a second P-type region, a second N-type region, and a second conductive layer thereon to define a second cell node. A PDL transistor and PGLA, PGLB transistors have bottom SD regions in the first N-type region. A PUL transistor has a bottom SD region positioned in the first P-type region. A PDR transistor and PGRA, PGRB have bottom SD regions in the second N-type region. A PUR transistor has a bottom SD region in the second P-type region. A first gate is positioned around channel regions of the PUL and PDL transistors and conductively coupled to the second node. A second gate is positioned around channel regions of the PUR and PDR transistors and conductively coupled to the first node.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: October 8, 2019
    Assignee: GLOBALFOUNDRIES Inc.
    Inventors: Randy W. Mann, Bipul C. Paul
  • Patent number: 10403629
    Abstract: One illustrative 6T SRAM cell structure disclosed herein includes a first active region with a first N-type pass gate transistor, a first N-type pull-down transistor and a first P-type pull-up transistor, each of which are formed in and above the first active region, wherein the first N-type pull-down transistor is positioned laterally between the first N-type pass gate transistor and the first P-type pull-up transistor, and a second active region with a second N-type pass gate transistor, a second N-type pull-down transistor and a second P-type pull-up transistor, each of which are formed in and above the second active region, wherein the second N-type pull-down transistor is positioned laterally between the second N-type pass gate transistor and the second P-type pull-up transistor.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: September 3, 2019
    Assignee: GLOBALFOUNDRIES Inc.
    Inventors: Randy W. Mann, Bipul C. Paul
  • Patent number: 10332897
    Abstract: Various aspects include a static random access memory (SRAM) bitcell array structure. In some cases, the SRAM bitcell array structure includes at least one fin in an array of fins in a substrate, where a width of a first portion of the at least one fin is less than a width of a second portion of the at least one fin in the array of fins.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: June 25, 2019
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Xiaoqiang Zhang, Hui Zang, Ratheesh R. Thankalekshmi, Randy W. Mann
  • Publication number: 20190139967
    Abstract: One illustrative 6T SRAM cell structure disclosed herein includes a first active region with a first N-type pass gate transistor, a first N-type pull-down transistor and a first P-type pull-up transistor, each of which are formed in and above the first active region, wherein the first N-type pull-down transistor is positioned laterally between the first N-type pass gate transistor and the first P-type pull-up transistor, and a second active region with a second N-type pass gate transistor, a second N-type pull-down transistor and a second P-type pull-up transistor, each of which are formed in and above the second active region, wherein the second N-type pull-down transistor is positioned laterally between the second N-type pass gate transistor and the second P-type pull-up transistor.
    Type: Application
    Filed: November 6, 2017
    Publication date: May 9, 2019
    Inventors: Randy W. Mann, Bipul C. Paul
  • Publication number: 20190067262
    Abstract: The present disclosure relates to semiconductor structures and, more particularly, to a SRAM structure with alternate gate pitches and methods of manufacture. The structure includes an array of memory cells having a plurality of gate structures with varying gate pitches, the varying gate pitches comprising a first dimension sized for placement of a bitline contact and a second dimension sized for placement of source/drain contacts, the first dimension being larger than the second dimension.
    Type: Application
    Filed: August 29, 2017
    Publication date: February 28, 2019
    Inventors: Hui ZANG, Randy W. MANN
  • Publication number: 20190019798
    Abstract: Various aspects include a static random access memory (SRAM) bitcell array structure. In some cases, the SRAM bitcell array structure includes at least one fin in an array of fins in a substrate, where a width of a first portion of the at least one fin is less than a width of a second portion of the at least one fin in the array of fins.
    Type: Application
    Filed: September 17, 2018
    Publication date: January 17, 2019
    Inventors: Xiaoqiang Zhang, Hui Zang, Ratheesh R. Thankalekshmi, Randy W. Mann
  • Patent number: 10163914
    Abstract: A method of reducing fin width in an integrated circuit (IC) including oxidizing an exposed portion of at least one fin in an array of fins resulting in a reduction in the width of the exposed portion of the at least one fin. A first hard mask may be located over the array of fins except the exposed portion of the at least one fin during oxidation. A second hard mask may be optionally located over the array of fins, under the first hard mask, and covering a portion of the exposed portion of the at least one fin during the oxidizing of the exposed portion of the at least one fin. The oxidizing the exposed portion of the at least one fin may occur before forming a shallow trench isolation (STI) between pairs of fins in the array of fins, after forming the STI between the pairs of fins in the array of fins, and/or after removing a dummy gate during a replacement metal gate process.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: December 25, 2018
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Xiaoqiang Zhang, Hui Zang, Ratheesh R. Thankalekshmi, Randy W. Mann
  • Patent number: 10109637
    Abstract: The disclosure provides integrated circuit (IC) structure including: a substrate; a shallow trench isolation (STI) positioned between the first and second regions of the substrate; a first transistor with a channel region is positioned on the first region of the substrate, and spacer positioned on the first region of the substrate and the STI; and a gate metal positioned on the spacer. The gate metal includes a gate contact region positioned over the first source/drain region of the substrate, and surrounding the channel region. Across-couple region extends laterally from the gate contact region to the source/drain region of a second transistor formed on the second region of the substrate.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: October 23, 2018
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Hui Zang, Randy W. Mann, Bipul C. Paul
  • Publication number: 20180261605
    Abstract: A method of reducing fin width in an integrated circuit (IC) including oxidizing an exposed portion of at least one fin in an array of fins resulting in a reduction in the width of the exposed portion of the at least one fin. A first hard mask may be located over the array of fins except the exposed portion of the at least one fin during oxidation. A second hard mask may be optionally located over the array of fins, under the first hard mask, and covering a portion of the exposed portion of the at least one fin during the oxidizing of the exposed portion of the at least one fin. The oxidizing the exposed portion of the at least one fin may occur before forming a shallow trench isolation (STI) between pairs of fins in the array of fins, after forming the STI between the pairs of fins in the array of fins, and/or after removing a dummy gate during a replacement metal gate process.
    Type: Application
    Filed: May 24, 2017
    Publication date: September 13, 2018
    Inventors: Xiaoqiang Zhang, Hui Zang, Ratheesh R. Thankalekshmi, Randy W. Mann
  • Patent number: 10068902
    Abstract: Disclosed is a method of forming an integrated circuit (IC) structure with multiple non-planar transistors having different effective channel widths. In the method, sacrificial gates are removed from partially completed transistors, creating gate openings that expose sections of semiconductor fins between source/drain regions. Prior to forming replacement metal gates in the gate openings, additional process steps are performed so that, in the resulting IC structure, some transistors have different channel region heights and, thereby different effective channel widths, than others. These steps can include forming isolation regions in the bottoms of some gate openings. Additionally or alternatively, these steps can include filling some gate openings with a sacrificial material, recessing the sacrificial material to expose fin tops within those gate openings, either recessing the fin tops or forming isolation regions in the fin tops, and removing the sacrificial material.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: September 4, 2018
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Yanping Shen, Hui Zang, Hsien-Ching Lo, Yongjun Shi, Randy W. Mann, Yi Qi, Guowei Xu, Wei Hong, Jerome Ciavatti, Jae Gon Lee