Patents by Inventor Yann A. M. Mignot

Yann A. M. Mignot 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: 20240030036
    Abstract: A method for forming fins includes forming a three-color hardmask fin pattern on a fin base layer. The three-color hardmask fin pattern includes hardmask fins of three mutually selectively etchable compositions. Some of the fins of the first color are etched away with a selective etch that does not remove fins of a second color or a third color and that leaves at least one fin of the first color behind. The fins of the second color are etched away. Fins are etched into the fin base layer by anisotropically etching around remaining fins of the first color and fins of the third color.
    Type: Application
    Filed: February 14, 2023
    Publication date: January 25, 2024
    Inventors: Sean D. Burns, Nelson M. Felix, Chi-Chun Liu, Yann A.M. Mignot, Stuart A. Sieg
  • Patent number: 11610780
    Abstract: A method for forming fins includes forming a three-color hardmask fin pattern on a fin base layer. The three-color hardmask fin pattern includes hardmask fins of three mutually selectively etchable compositions. Some of the fins of the first color are etched away with a selective etch that does not remove fins of a second color or a third color and that leaves at least one fin of the first color behind. The fins of the second color are etched away. Fins are etched into the fin base layer by anisotropically etching around remaining fins of the first color and fins of the third color.
    Type: Grant
    Filed: June 7, 2021
    Date of Patent: March 21, 2023
    Assignee: TESSERA LLC
    Inventors: Sean D. Burns, Nelson M. Felix, Chi-Chun Liu, Yann A. M. Mignot, Stuart A. Sieg
  • Patent number: 11557507
    Abstract: A semiconductor structure includes a multilayer structure having a first layer and a second layer disposed on the first layer. The semiconductor structure further includes at least a first via extending from a top of the second layer to a top of a first metal contact disposed in the first layer. A polymer film is disposed on at least a portion of sidewalls of the first via.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: January 17, 2023
    Assignee: International Business Machines Corporation
    Inventors: Yann A. M. Mignot, Chih-Chao Yang
  • Patent number: 11171002
    Abstract: Methods of forming fins include masking a region on a three-color hardmask fin pattern, leaving a fin of a first color exposed. The exposed fin of the first color is etched away with a selective etch that does not remove fins of a second color or a third color. The mask and all fins of a second color are etched away. Fins are etched into a fin base layer using the fins of the first color and the fins of the third color.
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: November 9, 2021
    Assignee: Tessera, Inc.
    Inventors: John C. Arnold, Anuja E. DeSilva, Nelson M. Felix, Chi-Chun Liu, Yann A. M. Mignot, Stuart A. Sieg
  • Publication number: 20210335619
    Abstract: A method for forming fins includes forming a three-color hardmask fin pattern on a fin base layer. The three-color hardmask fin pattern includes hardmask fins of three mutually selectively etchable compositions. Some of the fins of the first color are etched away with a selective etch that does not remove fins of a second color or a third color and that leaves at least one fin of the first color behind. The fins of the second color are etched away. Fins are etched into the fin base layer by anisotropically etching around remaining fins of the first color and fins of the third color.
    Type: Application
    Filed: June 7, 2021
    Publication date: October 28, 2021
    Inventors: Sean D. Burns, Nelson M. Felix, Chi-Chun Liu, Yann A.M. Mignot, Stuart A. Sieg
  • Patent number: 11031248
    Abstract: A method for forming fins includes forming a three-color hardmask fin pattern on a fin base layer. The three-color hardmask fin pattern includes hardmask fins of three mutually selectively etchable compositions. Some of the fins of the first color are etched away with a selective etch that does not remove fins of a second color or a third color and that leaves at least one fin of the first color behind. The fins of the second color are etched away. Fins are etched into the fin base layer by anisotropically etching around remaining fins of the first color and fins of the third color.
    Type: Grant
    Filed: July 11, 2019
    Date of Patent: June 8, 2021
    Assignee: Tessera, Inc.
    Inventors: Sean D. Burns, Nelson M. Felix, Chi-Chun Liu, Yann A. M. Mignot, Stuart A. Sieg
  • Patent number: 10978550
    Abstract: A capacitor includes a stack. The stack has a first metallic layer formed over a substrate, an insulator formed over the first metallic layer, and a second metallic layer formed over the insulator. The first metallic layer has at least one high domain and at least one low domain, where a surface of the substrate in the at least one low domain has a height that is lower than a surface of the substrate in the at least one high domain.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: April 13, 2021
    Assignee: Tessera, Inc.
    Inventors: Kisup Chung, Isabel C. Estrada-Raygoza, Hemanth Jagannathan, Chi-Chun Liu, Yann A. M. Mignot, Hao Tang
  • Patent number: 10957583
    Abstract: An interconnect structure having a pitch of less than 40 nanometers and a self-aligned quadruple patterning process for forming the interconnect structure includes three types of lines: a ? line defined by a patterned bottom mandrel formed in the self-aligned quadruple patterning process; a ? line defined by location underneath a top mandrel formed in the self-aligned quadruple patterning process; and an ? line defined by elimination located underneath neither the top mandrel or the bottom mandrel formed in the self-aligned quadruple patterning process. The interconnect structure further includes multi-track jogs selected from a group consisting of a ??? jog; a ??? jog; an ??? jog; a ??? jog, and combinations thereof. The first and third positions refer to the uncut line and the second position refers to the cut line in the self-aligned quadruple patterning process.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: March 23, 2021
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Sean D. Burns, Lawrence A. Clevenger, Matthew E. Colburn, Sivananda K. Kanakasabapathy, Yann A. M. Mignot, Christopher J. Penny, Roger A. Quon, Nicole A. Saulnier
  • Publication number: 20200273947
    Abstract: A capacitor includes a stack. The stack has a first metallic layer formed over a substrate, an insulator formed over the first metallic layer, and a second metallic layer formed over the insulator. The first metallic layer has at least one high domain and at least one low domain, where a surface of the substrate in the at least one low domain has a height that is lower than a surface of the substrate in the at least one high domain.
    Type: Application
    Filed: May 11, 2020
    Publication date: August 27, 2020
    Applicant: Tessera, Inc.
    Inventors: Kisup Chung, Isabel C. Estrada-Raygoza, Hemanth Jagannathan, Chi-Chun Liu, Yann A.M. Mignot, Hao Tang
  • Publication number: 20200266066
    Abstract: Methods of forming fins include masking a region on a three-color hardmask fin pattern, leaving a fin of a first color exposed. The exposed fin of the first color is etched away with a selective etch that does not remove fins of a second color or a third color. The mask and all fins of a second color are etched away. Fins are etched into a fin base layer using the fins of the first color and the fins of the third color.
    Type: Application
    Filed: February 24, 2020
    Publication date: August 20, 2020
    Applicant: TESSERA, INC.
    Inventors: John C. Arnold, Anuja E. DeSilva, Nelson M. Felix, Chi-Chun Liu, Yann A.M. Mignot, Stuart A. Sieg
  • Patent number: 10651266
    Abstract: Capacitors include a stack that has a first metallic layer formed over a substrate with at least one high domain and at least one low domain, an insulator formed over the first metallic layer, and a second metallic layer formed over the insulator. A bottom contact is formed in the substrate having a top surface that is even with a top surface of the substrate in the at least one high domain. A cap layer is formed directly on the substrate in the high domains, under the stack.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: May 12, 2020
    Assignee: Tessera, Inc.
    Inventors: Kisup Chung, Isabel C. Estrada-Raygoza, Hemanth Jagannathan, Chi-Chun Liu, Yann A. M. Mignot, Hao Tang
  • Patent number: 10586732
    Abstract: A method includes forming at least a first via in a multilayer structure comprising a first layer and a second layer formed over the first layer, the first via extending from a top of the second layer to a top of a first contact formed in the first layer and forming a polymer film on at least a portion of sidewalls of the first via by etching the top of the first contact using a cleaning process.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: March 10, 2020
    Assignee: International Business Machines Corporation
    Inventors: Yann A. M. Mignot, Chih-Chao Yang
  • Patent number: 10580652
    Abstract: Methods of forming fins include masking a region on a three-color hardmask fin pattern, leaving a fin of a first color exposed. The exposed fin of the first color is etched away with a selective etch that does not remove fins of a second color or a third color. The mask and all fins of a second color are etched away. Fins are etched into a fin base layer using the fins of the first color and the fins of the third color.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: March 3, 2020
    Assignee: Tessera, Inc.
    Inventors: John C. Arnold, Anuja E. DeSilva, Nelson M. Felix, Chi-Chun Liu, Yann A. M. Mignot, Stuart A. Sieg
  • Publication number: 20200066577
    Abstract: A semiconductor structure includes a multilayer structure having a first layer and a second layer disposed on the first layer. The semiconductor structure further includes at least a first via extending from a top of the second layer to a top of a first metal contact disposed in the first layer. A polymer film is disposed on at least a portion of sidewalls of the first via.
    Type: Application
    Filed: October 29, 2019
    Publication date: February 27, 2020
    Inventors: Yann A.M. Mignot, Chih-Chao Yang
  • Patent number: 10546774
    Abstract: An interconnect structure having a pitch of less than 40 nanometers and a self-aligned quadruple patterning process for forming the interconnect structure includes three types of lines: a ? line defined by a patterned bottom mandrel formed in the self-aligned quadruple patterning process; a ? line defined by location underneath a top mandrel formed in the self-aligned quadruple patterning process; and an ? line defined by elimination located underneath neither the top mandrel or the bottom mandrel formed in the self-aligned quadruple patterning process. The interconnect structure further includes multi-track jogs selected from a group consisting of a ??? jog; a ??? jog; and ??? jog; a ??? jog, and combinations thereof. The first and third positions refer to the uncut line and the second position refers to the cut line in the self-aligned quadruple patterning process.
    Type: Grant
    Filed: April 10, 2018
    Date of Patent: January 28, 2020
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Sean D. Burns, Lawrence A. Clevenger, Matthew E. Colburn, Sivananda K. Kanakasabapathy, Yann A. M. Mignot, Christopher J. Penny, Roger A. Quon, Nicole A. Saulnier
  • Publication number: 20190393082
    Abstract: An interconnect structure having a pitch of less than 40 nanometers and a self-aligned quadruple patterning process for forming the interconnect structure includes three types of lines: a ? line defined by a patterned bottom mandrel formed in the self-aligned quadruple patterning process; a ? line defined by location underneath a top mandrel formed in the self-aligned quadruple patterning process; and an ? line defined by elimination located underneath neither the top mandrel or the bottom mandrel formed in the self-aligned quadruple patterning process. The interconnect structure further includes multi-track jogs selected from a group consisting of a ??? jog; a ??? jog; an ??? jog; a ??? jog, and combinations thereof. The first and third positions refer to the uncut line and the second position refers to the cut line in the self-aligned quadruple patterning process.
    Type: Application
    Filed: August 28, 2019
    Publication date: December 26, 2019
    Inventors: Sean D. Burns, Lawrence A. Clevenger, Matthew E. Colburn, Sivananda K. Kanakasabapathy, Yann A.M. Mignot, Christopher J. Penny, Roger A. Quon, Nicole A. Saulnier
  • Publication number: 20190333774
    Abstract: A method for forming fins includes forming a three-color hardmask fin pattern on a fin base layer. The three-color hardmask fin pattern includes hardmask fins of three mutually selectively etchable compositions. Some of the fins of the first color are etched away with a selective etch that does not remove fins of a second color or a third color and that leaves at least one fin of the first color behind. The fins of the second color are etched away. Fins are etched into the fin base layer by anisotropically etching around remaining fins of the first color and fins of the third color.
    Type: Application
    Filed: July 11, 2019
    Publication date: October 31, 2019
    Inventors: Sean D. Burns, Nelson M. Felix, Chi-Chun Liu, Yann A.M. Mignot, Stuart A. Sieg
  • Patent number: 10410875
    Abstract: A method for forming fins includes forming a three-color hardmask fin pattern on a fin base layer. The three-color hardmask fin pattern has hardmask fins of three mutually selectively etchable compositions. A region on the three-color hardmask fin pattern is masked, leaving one or more fins of a first color exposed. All exposed fins of the first color are etched away with a selective etch that does not remove fins of a second color or a third color. The mask and all fins of a second color are etched away. Fins are etched into the fin base layer by anisotropically etching around remaining fins of the first color and fins of the third color.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: September 10, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Sean D. Burns, Nelson M. Felix, Chi-Chun Liu, Yann A. M. Mignot, Stuart A. Sieg
  • Patent number: 10395985
    Abstract: A method for forming conductive lines comprises forming a hardmask on an insulator layer, a planarizing layer on the hardmask, and a hardmask on the planarizing layer, removing exposed portions of a layer of sacrificial mandrel material to form first and second sacrificial mandrels on the hardmask, and depositing a layer of spacer material in the gap, and over exposed portions of the first and second sacrificial mandrels and the hardmask. Portions of the layer of spacer material are removed to expose the first and second sacrificial mandrels. A filler material is deposited between the first and second sacrificial mandrels. A portion of the filler material is removed to expose the first and second sacrificial mandrels. Portions of the layer of spacer material are removed to expose portions of the hardmask. A trench is formed in the insulator layer, and the trench is filled with a conductive material.
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: August 27, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Sean D. Burns, Lawrence A. Clevenger, Matthew E. Colburn, Sivananda K. Kanakasabapathy, Yann A. M. Mignot, Christopher J. Penny, Roger A. Quon, Nicole A. Saulnier
  • Patent number: 10354885
    Abstract: Embodiments are directed to a method of forming a semiconductor device and resulting structures having a hard masks for sidewall image transfer (SIT) block patterning. The method includes forming a first hard mask on a substrate. Spacers are formed on the first hard mask, and a second hard mask is formed over the spacers. The second hard mask and a portion of the first hard mask are concurrently removed by the same hard mask removal process to expose a surface of the substrate. After concurrently removing the second hard mask and portions of the first hard mask, the heights of the spacers are substantially equal.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: July 16, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Ekmini A. De Silva, Isabel C. Estrada-Raygoza, Yann A. M. Mignot, Indira P. V. Seshadri, Yongan Xu