Patents by Inventor Nurul Amin

Nurul Amin 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: 8203875
    Abstract: An anti-parallel diode structure and method of fabrication is presently disclosed. In some embodiments, an anti-parallel diode structure has a semiconductor region comprising a first insulator layer disposed between a first semiconductor layer and a second semiconductor layer. The semiconductor region can be bound on a first side by a first metal material and bound on a second side by a second metal material so that current below a predetermined value is prevented from passing through the semiconductor region and current above the predetermined value passes through the semiconductor region.
    Type: Grant
    Filed: January 27, 2011
    Date of Patent: June 19, 2012
    Assignee: Seagate Technology LLC
    Inventors: Nurul Amin, Insik Jim, Venugopalan Vaithyanathan, Wei Tian, YoungPil Kim
  • Patent number: 8203870
    Abstract: An apparatus and associated method for a non-volatile memory cell, such as a multi-bit magnetic random access memory cell. In accordance with various embodiments, a first magnetic tunnel junction (MTJ) is adjacent to a second MTJ having a magnetic filter. The first MTJ is programmed to a first logical state with a first magnetic flux while the magnetic filter absorbs the first magnetic flux to prevent the second MTJ from being programmed.
    Type: Grant
    Filed: November 23, 2010
    Date of Patent: June 19, 2012
    Assignee: Seagate Technology LLC
    Inventors: Nurul Amin, Dimitar V. Dimitrov, Haiwen Xi, Song S. Xue
  • Publication number: 20120149183
    Abstract: A switching element that includes a first semiconductor layer, the first semiconductor layer having a first portion and a second portion; a second semiconductor layer, the second semiconductor layer having a first portion and a second portion; an insulating layer disposed between the first semiconductor layer and the second semiconductor layer; a first metal contact in contact with the first portion of the first semiconductor layer forming a first junction and in contact with the first portion of the second semiconductor layer forming a second junction; a second metal contact in contact with the second portion of the first semiconductor layer forming a third junction and in contact with the second portion of the second semiconductor layer forming a fourth junction, wherein the first junction and the fourth junction are Schottky contacts, and the second junction and the third junction are ohmic contacts.
    Type: Application
    Filed: February 20, 2012
    Publication date: June 14, 2012
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Young Pil Kim, Nurul Amin, Dadi Setiadi, Venugopalan Vaithyanathan, Wei Tian, Insik Jin
  • Patent number: 8199570
    Abstract: An apparatus and associated method for a multi-bit memory capable of being selected with a magnetic layer. Various embodiments of the present invention are generally directed to a first selection layer with a low coercivity that is disposed between first and second storage layers that each have a high coercivity. In response to magnetic saturation of the first selection layer, programming of a logical state to the second storage layer is allowed.
    Type: Grant
    Filed: October 7, 2010
    Date of Patent: June 12, 2012
    Assignee: Seagate Technology LLC
    Inventors: Nurul Amin, Johannes Van Ek
  • Patent number: 8198181
    Abstract: A switching element that includes a first semiconductor layer, the first semiconductor layer having a first portion and a second portion; a second semiconductor layer, the second semiconductor layer having a first portion and a second portion; an insulating layer disposed between the first semiconductor layer and the second semiconductor layer; a first metal contact in contact with the first portion of the first semiconductor layer forming a first junction and in contact with the first portion of the second semiconductor layer forming a second junction; a second metal contact in contact with the second portion of the first semiconductor layer forming a third junction and in contact with the second portion of the second semiconductor layer forming a fourth junction, wherein the first junction and the fourth junction are Schottky contacts, and the second junction and the third junction are ohmic contacts.
    Type: Grant
    Filed: February 20, 2012
    Date of Patent: June 12, 2012
    Assignee: Seagate Technology LLC
    Inventors: Young Pil Kim, Nurul Amin, Dadi Setiadi, Venugopalan Vaithyanathan, Wei Tian, Insik Jin
  • Publication number: 20120127786
    Abstract: An apparatus and associated method for a non-volatile memory cell, such as a multi-bit magnetic random access memory cell. In accordance with various embodiments, a first magnetic tunnel junction (MTJ) is adjacent to a second MTJ having a magnetic filter. The first MTJ is programmed to a first logical state with a first magnetic flux while the magnetic filter absorbs the first magnetic flux to prevent the second MTJ from being programmed.
    Type: Application
    Filed: November 23, 2010
    Publication date: May 24, 2012
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Nurul Amin, Dimitar V. Dimitrov, Haiwen Xi, Song S. Xue
  • Patent number: 8158964
    Abstract: A switching element that includes a first semiconductor layer, the first semiconductor layer having a first portion and a second portion; a second semiconductor layer, the second semiconductor layer having a first portion and a second portion; an insulating layer disposed between the first semiconductor layer and the second semiconductor layer; a first metal contact in contact with the first portion of the first semiconductor layer forming a first junction and in contact with the first portion of the second semiconductor layer forming a second junction; a second metal contact in contact with the second portion of the first semiconductor layer forming a third junction and in contact with the second portion of the second semiconductor layer forming a fourth junction, wherein the first junction and the fourth junction are Schottky contacts, and the second junction and the third junction are ohmic contacts.
    Type: Grant
    Filed: July 13, 2009
    Date of Patent: April 17, 2012
    Assignee: Seagate Technology LLC
    Inventors: Young Pil Kim, Nurul Amin, Dadi Setiadi, Venugopalan Vaithyanathan, Wei Tian, Insik Jin
  • Publication number: 20120087186
    Abstract: An apparatus and associated method for a multi-bit memory capable of being selected with a magnetic layer. Various embodiments of the present invention are generally directed to a first selection layer with a low coercivity that is disposed between first and second storage layers that each have a high coercivity. In response to magnetic saturation of the first selection layer, programming of a logical state to the second storage layer is allowed.
    Type: Application
    Filed: October 7, 2010
    Publication date: April 12, 2012
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Nurul Amin, Johannes Van Ek
  • Publication number: 20120040496
    Abstract: Programmable metallization memory cells include an electrochemically active electrode and an inert electrode and an ion conductor solid electrolyte material between the electrochemically active electrode and the inert electrode. An electrically insulating oxide layer separates the ion conductor solid electrolyte material from the electrochemically active electrode.
    Type: Application
    Filed: October 21, 2011
    Publication date: February 16, 2012
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Ming Sun, Michael Xuefei Tang, Insik Jin, Venkatram Venkatasamy, Philip George Pitcher, Nurul Amin
  • Publication number: 20120032131
    Abstract: Programmable metallization memory cells include an electrochemically active electrode and an inert electrode and an ion conductor solid electrolyte material between the electrochemically active electrode and the inert electrode. An electrically insulating oxide layer separates the ion conductor solid electrolyte material from the electrochemically active electrode.
    Type: Application
    Filed: October 21, 2011
    Publication date: February 9, 2012
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Ming Sun, Michael Xuefei Tang, Insik Jin, Venkatram Venkatasamy, Philip George Pitcher, Nurul Amin
  • Patent number: 8098455
    Abstract: A magnetic device includes a write element having a write element tip and a conductive coil for carrying a current to induce a first field from the write element. A conductor proximate the write element tip carries the current to generate a second field that augments the first field. A driver provides the current to the conductive coil and the conductor, and a circuit phase shifts the current through the conductor relative to the current through the conductive coil.
    Type: Grant
    Filed: June 27, 2007
    Date of Patent: January 17, 2012
    Assignee: Seagate Technology LLC
    Inventors: Stefan A. Ionescu, Ladislav R. Pust, Michael T. Johnson, Nurul Amin
  • Patent number: 8058646
    Abstract: Programmable metallization memory cells include an electrochemically active electrode and an inert electrode and an ion conductor solid electrolyte material between the electrochemically active electrode and the inert electrode. An electrically insulating oxide layer separates the ion conductor solid electrolyte material from the electrochemically active electrode.
    Type: Grant
    Filed: February 23, 2009
    Date of Patent: November 15, 2011
    Assignee: Seagate Technology LLC
    Inventors: Ming Sun, Michael Xuefei Tang, Insik Jin, Venkatram Venkatasamy, Philip George Pitcher, Nurul Amin
  • Publication number: 20110228599
    Abstract: A non-volatile memory cell with a programmable unipolar switching element, and a method of programming the memory element are disclosed. In some embodiments, the memory cell comprises a programmable bipolar resistive sense memory element connected in series with a programmable unipolar resistive sense switching element. The memory element is programmed to a selected resistance state by application of a selected write current in a selected direction through the cell, wherein a first resistance level is programmed by passage of a write current in a first direction and wherein a second resistance level is programmed by passage of a write current in an opposing second direction. The switching element is programmed to a selected resistance level to facilitate access to the selected resistance state of the memory element.
    Type: Application
    Filed: May 27, 2011
    Publication date: September 22, 2011
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Wei Tian, Nurul Amin, Insik Jin, Ming Sun, Venu Vaithyanathan, YoungPil Kim, Chulmin Jung
  • Patent number: 7974117
    Abstract: A non-volatile memory cell with a programmable unipolar switching element, and a method of programming the memory element are disclosed. In some embodiments, the memory cell comprises a programmable bipolar resistive sense memory element connected in series with a programmable unipolar resistive sense switching element. The memory element is programmed to a selected resistance state by application of a selected write current in a selected direction through the cell, wherein a first resistance level is programmed by passage of a write current in a first direction and wherein a second resistance level is programmed by passage of a write current in an opposing second direction. The switching element is programmed to a selected resistance level to facilitate access to the selected resistance state of the memory element.
    Type: Grant
    Filed: July 6, 2009
    Date of Patent: July 5, 2011
    Assignee: Seagate Technology LLC
    Inventors: Wei Tan, Nurul Amin, Insik Jim, Ming Sun, Venu Vaithyanathan, YoungPil Kim, Chulmin Jung
  • Patent number: 7965589
    Abstract: A device comprises a recordable disc, a substrate adjacent to the recordable disc, and an actuation mechanism fixed to the substrate. The recordable disc includes a base layer and a recordable layer on the base layer. Additional electrodes or magnetic components may be placed on the base layer to provide electromagnetic or electrostatic forces to rotate the recordable disc when acted on by the actuation mechanism. As an example, the invention may utilize MEMS techniques in order to integrate a disc and motor of a disc drive as a common component.
    Type: Grant
    Filed: January 23, 2007
    Date of Patent: June 21, 2011
    Assignee: Seagate Technology LLC
    Inventors: Roger Hipwell, Nurul Amin, John Pendray, Andrew White, Bradley Ver Meer, Hans Leuthold, Menachem Rafaelof, Wayne Bonin
  • Patent number: 7957091
    Abstract: A device comprises a fluid bearing including a textured fluid bearing surface and a second surface and a recordable disc. The recordable disc includes a substrate, a recordable media layer on the substrate, and at least one of the textured fluid bearing surface and the second surface. The device may be manufactured using MEMS techniques. MEMS techniques provide the high precision necessary to create the textured fluid bearing surface. MEMS techniques also allow the recordable disc to be batch-fabricated with one or more additional recordable discs.
    Type: Grant
    Filed: January 23, 2007
    Date of Patent: June 7, 2011
    Assignee: Seagate Technology LLC
    Inventors: Roger Hipwell, Nurul Amin, John Pendray, Andrew White, Bradley Ver Meer, Hans Leuthold, Menachem Rafaelof, Wayne Bonin
  • Publication number: 20110122678
    Abstract: An anti-parallel diode structure and method of fabrication is presently disclosed. In some embodiments, an anti-parallel diode structure has a semiconductor region comprising a first insulator layer disposed between a first semiconductor layer and a second semiconductor layer. The semiconductor region can be bound on a first side by a first metal material and bound on a second side by a second metal material so that current below a predetermined value is prevented from passing through the semiconductor region and current above the predetermined value passes through the semiconductor region.
    Type: Application
    Filed: January 27, 2011
    Publication date: May 26, 2011
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Nurul Amin, Insik Jin, Venugopalan Vaithyanathan, Wei Tian, YoungPil Kim
  • Patent number: 7911833
    Abstract: An anti-parallel diode structure and method of fabrication is presently disclosed. In some embodiments, an anti-parallel diode structure has a semiconductor region comprising a first insulator layer disposed between a first semiconductor layer and a second semiconductor layer. The semiconductor region can be bound on a first side by a first metal material and bound on a second side by a second metal material so that current below a predetermined value is prevented from passing through the semiconductor region and current above the predetermined value passes through the semiconductor region.
    Type: Grant
    Filed: July 13, 2009
    Date of Patent: March 22, 2011
    Assignee: Seagate Technology LLC
    Inventors: Nurul Amin, Insik Jin, Venugopalan Vaithyanathan, Wei Tian, YoungPil Kim
  • Publication number: 20110007546
    Abstract: An anti-parallel diode structure and method of fabrication is presently disclosed. In some embodiments, an anti-parallel diode structure has a semiconductor region comprising a first insulator layer disposed between a first semiconductor layer and a second semiconductor layer. The semiconductor region can be bound on a first side by a first metal material and bound on a second side by a second metal material so that current below a predetermined value is prevented from passing through the semiconductor region and current above the predetermined value passes through the semiconductor region.
    Type: Application
    Filed: July 13, 2009
    Publication date: January 13, 2011
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Nurul Amin, Insik Jin, Venugopalan Vaithyanathan, Wei Tian, YoungPil Kim
  • Publication number: 20110007545
    Abstract: A non-volatile memory cell and method of use thereof. In some embodiments, an individually programmable resistive sense memory (RSM) element is connected in series with a programmable metallization cell (PMC) switching element. In operation, while the switching element is programmed to a first resistive state, no current passes through the RSM element and while a second resistive state is programmed to the RSM element, current passes through the RSM element.
    Type: Application
    Filed: July 13, 2009
    Publication date: January 13, 2011
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Insik Jin, YoungPil Kim, Ming Sun, Chulmin Jung, Venugopalan Vaithyanathan, Nurul Amin, Wei Tian, Yong Lu