Patents by Inventor Rwik Sengupta

Rwik Sengupta 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: 10861950
    Abstract: A field effect transistor including a source region, a drain region, a channel region extending between the source region and the drain region, a gate on the channel region, a gate contact on the gate at an active region of the gate, a source contact on the source region, a drain contact on the drain region, and recesses in the source and drain contacts substantially aligned with the gate contact. Upper surfaces of the recesses in the source and drain contacts are spaced below an upper surface of the gate by a depth.
    Type: Grant
    Filed: September 4, 2018
    Date of Patent: December 8, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Rwik Sengupta, Mark Rodder, Joon Goo Hong, Titash Rakshit
  • Publication number: 20200373241
    Abstract: A tap cell configured to enable electrical connection from a buried power rail of an integrated circuit to a power distribution network includes. The tap cell includes a buried power rail layer including VDD and VSS power supply lines, insulating layers and metal layers alternately arranged on the buried power rail layer, a first power supply interconnect in metal layer M1 or higher electrically coupled to the VDD power supply line, and a second power supply interconnect in metal layer M1 or higher electrically connected to the VSS power supply line. The first power supply interconnect and the second power supply interconnect are configured to be electrically connected to the power distribution network, and the VDD and VSS power supply lines are configured to supply power from the power distribution network to the buried power rail of the integrated circuit. The tap cell is free of any active semiconductor devices.
    Type: Application
    Filed: September 5, 2019
    Publication date: November 26, 2020
    Inventors: Vassilios Gerousis, Rwik Sengupta, Joon Goo Hong, Kevin Michael Traynor
  • Patent number: 10832774
    Abstract: A weight cell and device are herein disclosed. The weight cell includes a first field effect transistor (FET) and a first resistive memory element connected to a drain of the first FET, a second FET and a second resistive memory element connected to a drain of the second FET, the drain of the first FET is connected to a gate of the second FET and the drain of the second FET is connected to a gate of the first FET, and a third FET, and a load resistor connected to a drain of the third FET.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: November 10, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ryan M. Hatcher, Titash Rakshit, Jorge Kittl, Rwik Sengupta, Dharmendar Palle, Joon Goo Hong
  • Patent number: 10811415
    Abstract: According to some example embodiments of the present disclosure, a semiconductor device includes: a substrate; a first semiconductor layer over the substrate, the first semiconductor layer being a first type of semiconductor device; and a second semiconductor layer over the substrate and the first semiconductor layer, the second semiconductor layer being the first type of semiconductor device, wherein a first portion of the first semiconductor layer overlaps the second semiconductor layer when viewed in a direction perpendicular to a plane of the substrate and a second portion of the first semiconductor layer is laterally offset from the second semiconductor layer when viewed in the direction perpendicular to the plane of the substrate.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: October 20, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Rwik Sengupta, Joon Goo Hong, Vassilios Gerousis, Mark S. Rodder
  • Patent number: 10784198
    Abstract: A semiconductor integrated circuit including a substrate, a series of metal layers, and a series of insulating layers. The metal layers and the insulating layers are alternately arranged in a stack on the substrate. The semiconductor integrated circuit also includes at least two standard cells in the substrate and at least one power rail crossing over boundaries of the at least two standard cells. The power rail includes a vertical section of conductive material extending continuously through at least two vertical levels of the stack. The two vertical levels of the stack include one metal layer and one insulating layer. The insulating layer is above the metal layer.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: September 22, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Rwik Sengupta, Andrew Paul Hoover, Matthew Berzins, Sam Tower, Mark S. Rodder
  • Publication number: 20200295134
    Abstract: A cell architecture for vertical field-effect transistors (VFETs) is provided. The cell architecture includes: top source/drain (S/D) contact structure having a square shape in a plan view; and horizontal metal patterns formed on the top S/D contact structures and extended in an X-direction to be connected to a vertical pattern through with an output signal of a logic circuit formed by the VFETs. The cell architecture further includes a gate contact structure formed on a gate connection pattern connecting gates of the VFETs, wherein a super via is formed on the gate contact structure to receive an input signal of the logic circuit.
    Type: Application
    Filed: December 12, 2019
    Publication date: September 17, 2020
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jung Ho DO, Rwik SENGUPTA
  • Publication number: 20200279605
    Abstract: A weight cell and device are herein disclosed. The weight cell includes a first field effect transistor (FET) and a first resistive memory element connected to a drain of the first FET, a second FET and a second resistive memory element connected to a drain of the second FET, the drain of the first FET is connected to a gate of the second FET and the drain of the second FET is connected to a gate of the first FET, and a third FET, and a load resistor connected to a drain of the third FET.
    Type: Application
    Filed: June 21, 2019
    Publication date: September 3, 2020
    Inventors: Ryan M. Hatcher, Titash Rakshit, Jorge Kittl, Rwik Sengupta, Dharmendar Palle, Joon Goo Hong
  • Publication number: 20200279176
    Abstract: A weight cell and device are herein disclosed. The weight cell includes a first field effect transistor (FET) and a first resistive memory element connected to a drain of the first FET, a second FET and a second resistive memory element connected to a drain of the second FET, the drain of the first FET being connected to a gate of the second FET and the drain of the second FET is connected to a gate of the first FET, a third FET and a third resistive memory element connected to a drain of the third FET, and a fourth FET and a fourth resistive memory element connected to a drain of the fourth FET, the drain of the third FET is connected to a gate of the fourth FET and the drain of the fourth FET being connected to a gate of the third FET.
    Type: Application
    Filed: June 21, 2019
    Publication date: September 3, 2020
    Inventors: Ryan M. HATCHER, Titash RAKSHIT, Jorge KITTL, Rwik SENGUPTA, Dharmendar PALLE, Joon Goo HONG
  • Publication number: 20200279811
    Abstract: An integrated circuit (IC) apparatus and a method of forming a conductive material in a backside of an IC are provided. The IC apparatus includes a substrate including a frontside and a backside; at least one first insulating material deposited in the backside of the substrate in a form of a trench; a conductive material deposited in each of the at least one first insulating material; at least one second insulating material deposited on the conductive material to insulate the conductive material from the substrate; an epitaxial crystalline material grown on the frontside of the substrate; at least one semiconductor component formed in the epitaxial crystalline material; and at least one via formed in the substrate to connect the conductive material to the at least one semiconductor component.
    Type: Application
    Filed: September 20, 2019
    Publication date: September 3, 2020
    Inventors: Joon Goo Hong, Rwik Sengupta
  • Publication number: 20200265892
    Abstract: A weight cell and device are herein disclosed. The weight cell includes a first field effect transistor (FET) and a first resistive memory element connected to a drain of the first FET, and a second FET and a second resistive memory element connected to a drain of the second FET. The drain of the first FET is connected to a gate of the second FET and the drain of the second FET is connected to a gate of the first FET.
    Type: Application
    Filed: June 21, 2019
    Publication date: August 20, 2020
    Inventors: Ryan M. HATCHER, Titash Rakshit, Jorge Kittl, Rwik Sengupta, Dharmendar Palle, Joon Goo Hong
  • Publication number: 20200201954
    Abstract: A computer-implemented method includes generating a layout of a semiconductor cell. The layout includes a series of semiconductor devices, intra-cell connections, including power rails, between the plurality of semiconductor devices, and a series of shadow pin regions for placement of a series of pins by a placement and routing tool. Each shadow pin region of the series of shadow pin regions defines a maximum legal boundary that each pin of the series of pins may occupy without violating ground rules.
    Type: Application
    Filed: March 27, 2019
    Publication date: June 25, 2020
    Inventors: Vassilios Gerousis, Rwik Sengupta
  • Publication number: 20200152801
    Abstract: A semiconductor device includes first and second GAA FETs spaced apart by an inter-channel spacing. Each of the GAA FETs includes a horizontal nanosheet conductive channel structure, a gate material completely surrounding the horizontal nanosheet conductive channel structure, source and drain regions at opposite ends of the horizontal nanosheet conductive channel structure, source and drain contacts on the source and drain regions. A width of the horizontal nanosheet conductive channel structure of the first GAA FET or the second GAA FET is smaller than a maximum allowed width. The semiconductor device also includes a gate contact on the gate material in the inter-channel spacing between the first and second GAA FETs. The gate contact is spaced apart by a distance from each of the source and drain regions of the first and second GAA FETs in a range from a minimum design rule spacing to a maximum distance.
    Type: Application
    Filed: April 22, 2019
    Publication date: May 14, 2020
    Inventors: Rwik Sengupta, Mark Stephen Rodder, Joon Goo Hong, Titash Rakshit
  • Publication number: 20200135735
    Abstract: According to some example embodiments of the present disclosure, a semiconductor device includes: a substrate; a first semiconductor layer over the substrate, the first semiconductor layer being a first type of semiconductor device; and a second semiconductor layer over the substrate and the first semiconductor layer, the second semiconductor layer being the first type of semiconductor device, wherein a first portion of the first semiconductor layer overlaps the second semiconductor layer when viewed in a direction perpendicular to a plane of the substrate and a second portion of the first semiconductor layer is laterally offset from the second semiconductor layer when viewed in the direction perpendicular to the plane of the substrate.
    Type: Application
    Filed: March 11, 2019
    Publication date: April 30, 2020
    Inventors: Rwik Sengupta, Joon Goo Hong, Vassilios Gerousis, Mark S. Rodder
  • Patent number: 10566330
    Abstract: A CMOS system on chip including a series of partial gate-all-around field effect transistors. Each partial GAA FET includes a fin having a stack of channel regions, source and drain regions on opposite sides of the fin, a dielectric separation region including a dielectric material between first and second channel regions, a gate stack on the fin, and a pair of sidewall spacers on opposite sides of the gate stack. A portion of the dielectric separation region has a length from an outer edge of the dielectric separation region to an inner edge of a respective sidewall spacer. The length of the portion of the dielectric separation region of one of the partial GAA FETs is different than the length of the portion of the dielectric separation region of another one of the partial GAA FETs.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: February 18, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Mark S. Rodder, Borna J. Obradovic, Dharmendar Palle, Rwik Sengupta, Mohammad Ali Pourghaderi
  • Publication number: 20190318998
    Abstract: A hardware-embedded security system is described. The system includes connective components, circuit elements and an insulator. The connective components include a variable conductivity layer that is conductive for a first stoichiometry and insulating for a second stoichiometry. A first portion of the circuit elements are connected to a first portion of the connective components and are active. A the second portion of the circuit elements are connected to a second portion of the connective components and are inactive. The insulator is adjacent to at least a portion of each of the connective components. The first stoichiometry is indistinguishable from the second stoichiometry via optical imaging and electron imaging of a portion of the insulator and the variable conductivity layer.
    Type: Application
    Filed: June 26, 2019
    Publication date: October 17, 2019
    Inventors: Harsono S. Simka, Ganesh Hegde, Joon Goo Hong, Rwik Sengupta, Mark S. Rodder
  • Patent number: 10424581
    Abstract: An integrated circuit (IC) including a circuit block including a plurality of complementary metal oxide semiconductor field-effect transistors (CMOSFETs), and a tunnel field-effect transistor (TFET) between the circuit block and ground for power gating the circuit block.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: September 24, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Titash Rakshit, Mark Rodder, Rwik Sengupta
  • Patent number: 10381315
    Abstract: A hardware-embedded security system is described. The system includes connective components, circuit elements and an insulator. The connective components include a variable conductivity layer that is conductive for a first stoichiometry and insulating for a second stoichiometry. The variable conductivity layer is conductive for a first portion of the connective components connected to a first portion of the circuit elements. The variable conductivity layer is insulating for a second portion of the connective components connected to a second portion of the circuit elements. Thus, the first portion of the circuit elements are active and the second portion of the circuit elements are inactive. The insulator is adjacent to at least a portion of each of the connective components. The first stoichiometry may be indistinguishable from the second stoichiometry via optical imaging and electron imaging of a portion of the insulator and the variable conductivity layer.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: August 13, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Harsono S. Simka, Ganesh Hegde, Joon Goo Hong, Rwik Sengupta, Mark S. Rodder
  • Patent number: 10361195
    Abstract: An embodiment includes a semiconductor device, comprising: a substrate; a continuous diffusion region disposed on the substrate; a first gate structure disposed on the continuous diffusion region; a second gate structure disposed on the continuous diffusion region; an isolation gate structure disposed between the first gate structure and the second gate structure and disposed adjacent to the both the first gate structure and the second gate structure; a first diffusion region of the continuous diffusion region disposed between the first gate structure and the isolation gate structure; a second diffusion region of the continuous diffusion region disposed between the second gate structure and the isolation gate structure; a conductive layer disposed on the first and second diffusion regions; and an isolation gate contact disposed over the isolation gate structure and electrically insulated from the first diffusion region.
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: July 23, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Rwik Sengupta, Mark S. Rodder
  • Publication number: 20190181140
    Abstract: A CMOS system on chip including a series of partial gate-all-around field effect transistors. Each partial GAA FET includes a fin having a stack of channel regions, source and drain regions on opposite sides of the fin, a dielectric separation region including a dielectric material between first and second channel regions, a gate stack on the fin, and a pair of sidewall spacers on opposite sides of the gate stack. A portion of the dielectric separation region has a length from an outer edge of the dielectric separation region to an inner edge of a respective sidewall spacer. The length of the portion of the dielectric separation region of one of the partial GAA FETs is different than the length of the portion of the dielectric separation region of another one of the partial GAA FETs.
    Type: Application
    Filed: May 11, 2018
    Publication date: June 13, 2019
    Inventors: Mark S. Rodder, Borna J. Obradovic, Dharmendar Palle, Rwik Sengupta, Mohammad Ali Pourghaderi
  • Patent number: 10297673
    Abstract: Methods of forming a semiconductor device are provided. The methods may include forming a plurality of fin-shaped channels on a substrate, forming a gate structure crossing over the plurality of fin-shaped channels and forming a source/drain adjacent a side of the gate structure. The source/drain may cross over the plurality of fin-shaped channels and may be electrically connected to the plurality of fin-shaped channels. The methods may also include forming a metallic layer on an upper surface of the source/drain and forming a conductive contact on the metallic layer opposite the source/drain. The conductive contact may have a first length in a longitudinal direction of the metallic layer that is less than a second length of the metallic layer in the longitudinal direction of the metallic layer.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: May 21, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jorge A. Kittl, Ganesh Hegde, Rwik Sengupta, Borna J. Obradovic, Mark S. Rodder