Patents by Inventor Abu Naser M. Zainuddin

Abu Naser M. Zainuddin 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: 10991689
    Abstract: A method includes forming a first region including a pair of first FinFETs and a second region including a pair of second FinFETs on a substrate. Each FinFET includes a metal gate having a first spacer adjacent thereto, and each first FinFET has a gate dielectric that is thicker than a gate dielectric of each second FinFET, such that the first FinFETs can be higher voltage input/output devices. The method forms a first contact between the metal gates of the pair of first FinFETs with a second spacer thereabout, the second spacer contacting a portion of each first spacer. The second spacer thus has a portion extending parallel to the metal gates, and a portion extending perpendicular to the metal gates. A second contact is formed between the metal gates of the pair of second FinFETs, and the second contact devoid of the second spacer.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: April 27, 2021
    Assignee: GLOBALFOUNDRIES U.S. INC.
    Inventors: Abu Naser M. Zainuddin, Christopher D. Sheraw, Sangameshwar Rao Saudari, Wei Ma, Kai Zhao, Bala S Haran
  • Publication number: 20200321332
    Abstract: A method includes forming a first region including a pair of first FinFETs and a second region including a pair of second FinFETs on a substrate. Each FinFET includes a metal gate having a first spacer adjacent thereto, and each first FinFET has a gate dielectric that is thicker than a gate dielectric of each second FinFET, such that the first FinFETs can be higher voltage input/output devices. The method forms a first contact between the metal gates of the pair of first FinFETs with a second spacer thereabout, the second spacer contacting a portion of each first spacer. The second spacer thus has a portion extending parallel to the metal gates, and a portion extending perpendicular to the metal gates. A second contact is formed between the metal gates of the pair of second FinFETs, and the second contact devoid of the second spacer.
    Type: Application
    Filed: April 5, 2019
    Publication date: October 8, 2020
    Inventors: Abu Naser M. Zainuddin, Christopher D. Sheraw, Sangameshwar Rao Saudari, Wei Ma, Kai Zhao, Bala S. Haran
  • Patent number: 10755982
    Abstract: One illustrative method disclosed herein includes forming 1st and 2nd sacrificial gate structures for, respectively, 1st and 2nd devices, removing 1st and 2nd sacrificial gate electrodes from the 1st and 2nd sacrificial gate structures so as to at least partially define, respectively, 1st and 2nd replacement gate (RMG) cavities, and removing the 2nd sacrificial gate insulation layer from the 2nd RMG cavity while leaving the 1st sacrificial gate insulation layer in position in the 1st RMG cavity. The method also includes forming a conformal gate insulation layer in both the 1st and 2nd RMG cavities, removing the conformal gate insulation layer and the 1st sacrificial gate insulation layer from the 1st RMG cavity while leaving the conformal gate insulation layer in the 2nd RMG cavity, and performing an oxidation process to form an interfacial gate insulation layer only in the 1st RMG cavity.
    Type: Grant
    Filed: July 11, 2019
    Date of Patent: August 25, 2020
    Assignee: GLOBALFOUNDRIES Inc.
    Inventors: Abu Naser M. Zainuddin, Wei Ma, Daniel Jaeger, Joseph Versaggi, Jae Gon Lee, Thomas Kauerauf
  • Patent number: 10438853
    Abstract: At least one method, apparatus and system are provided for forming a hybrid oxide layer for providing for a first region of a finFET device to operate at a first voltage and a second region of the finFET to operate at a second voltage. A first set of fins are formed on an I/O device portion, and a second set of fins are formed on a core device portion of a substrate. A first and a second oxide layers are deposited on the first and second set of fins, wherein they merge to form a hybrid oxide layer. The thickness of the second oxide layer is based on a first operating voltage for the I/O device portion. The hybrid layer is removed from the core device portion such that the I/O device portion operates at the first voltage and the core device portion operates at a second voltage.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: October 8, 2019
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Shahab Siddiqui, Beth Baumert, Abu Naser M. Zainuddin, Luigi Pantisano
  • Publication number: 20190157157
    Abstract: At least one method, apparatus and system are provided for forming a hybrid oxide layer for providing for a first region of a finFET device to operate at a first voltage and a second region of the finFET to operate at a second voltage. A first set of fins are formed on an I/O device portion, and a second set of fins are formed on a core device portion of a substrate. A first and a second oxide layers are deposited on the first and second set of fins, wherein they merge to form a hybrid oxide layer. The thickness of the second oxide layer is based on a first operating voltage for the I/O device portion. The hybrid layer is removed from the core device portion such that the I/O device portion operates at the first voltage and the core device portion operates at a second voltage.
    Type: Application
    Filed: November 22, 2017
    Publication date: May 23, 2019
    Applicant: GLOBALFOUNDRIES INC.
    Inventors: Shahab Siddiqui, Beth Baumert, Abu Naser M. Zainuddin, Luigi Pantisano