Patents Assigned to 4D-S Pty Ltd.
  • Patent number: 10003020
    Abstract: A memory device includes a first metal layer and a first metal oxide layer coupled to the first metal layer. The memory device includes a second metal oxide layer coupled to the first metal oxide layer and a second metal layer coupled to the second metal oxide layer. The formation of the first metal oxide layer has a Gibbs free energy that is lower than the Gibbs free energy for the formation of the second metal oxide layer.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: June 19, 2018
    Assignee: 4D-S PTY, LTD
    Inventor: Dongmin Chen
  • Patent number: 9520559
    Abstract: A memory device includes a first metal layer and a first metal oxide layer coupled to the first metal layer. The memory device includes a second metal oxide layer coupled to the first metal oxide layer and a second metal layer coupled to the second metal oxide layer. The formation of the first metal oxide layer has a Gibbs free energy that is lower than the Gibbs free energy for the formation of the second metal oxide layer.
    Type: Grant
    Filed: October 2, 2015
    Date of Patent: December 13, 2016
    Assignee: 4D-S PTY, LTD
    Inventor: Dongmin Chen
  • Patent number: 9293201
    Abstract: A memory device includes a first metal layer and a first metal oxide layer coupled to the first metal layer. The memory device includes a second metal oxide layer coupled to the first metal oxide layer and a second metal layer coupled to the second metal oxide layer. The formation of the first metal oxide layer has a Gibbs free energy that is lower than the Gibbs free energy for the formation of the second metal oxide layer.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: March 22, 2016
    Assignee: 4D-S PTY, LTD
    Inventor: Dongmin Chen
  • Patent number: 8884401
    Abstract: Systems and methods are disclosed to form a resistive random access memory (RRAM) by forming a first metal electrode layer; depositing an insulator above the metal electrode layer and etching the insulator to expose one or more metal portions; depositing a Pr1-X CaXMnO3 (PCMO) layer above the insulator and the metal portions, wherein X is between approximately 0.3 and approximately 0.5, to form one or more self-aligned RRAM cells above the first metal electrode; and depositing a second metal electrode layer above the PCMO layer.
    Type: Grant
    Filed: May 20, 2013
    Date of Patent: November 11, 2014
    Assignee: 4D-S Pty, Ltd
    Inventor: Makoto Nagashima
  • Patent number: 8698120
    Abstract: A memory device includes a first metal layer and a first metal oxide layer coupled to the first metal layer. The memory device includes a second metal oxide layer coupled to the first metal oxide layer and a second metal layer coupled to the second metal oxide layer. The formation of the first metal oxide layer has a Gibbs free energy that is lower than the Gibbs free energy for the formation of the second metal oxide layer.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: April 15, 2014
    Assignee: 4D-S Pty. Ltd
    Inventor: Dongmin Chen
  • Publication number: 20130248812
    Abstract: Systems and methods are disclosed to form a resistive random access memory (RRAM) by forming a first metal electrode layer; depositing an insulator above the metal electrode layer and etching the insulator to expose one or more metal portions; depositing a Pr1-X CaXMnO3 (PCMO) layer above the insulator and the metal portions, wherein X is between approximately 0.3 and approximately 0.5, to form one or more self-aligned RRAM cells above the first metal electrode; and depositing a second metal electrode layer above the PCMO layer.
    Type: Application
    Filed: May 20, 2013
    Publication date: September 26, 2013
    Applicant: 4D-S PTY, LTD
    Inventor: Makoto Nagashima
  • Publication number: 20130224888
    Abstract: Systems and methods are disclosed to form a resistive random access memory (RRAM) by forming a first metal electrode layer; depositing an insulator above the metal electrode layer and etching the insulator to expose one or more metal portions; depositing a Pr1-xCaxMnO3 (PCMO) layer, in an electrically biased sputtering chamber, above the insulator and the metal portions, to form one or more self-aligned RRAM cells above the first metal electrode; and depositing a second metal electrode layer above the PCMO layer.
    Type: Application
    Filed: February 5, 2013
    Publication date: August 29, 2013
    Applicant: 4D-S PTY, LTD
    Inventor: 4D-S PTY, LTD
  • Patent number: 8454810
    Abstract: A plasma source includes a hexagonal hollow cathode, the cathode including six targets and six magnets to generate and maintain a high density plasma; and an anode located beneath the cathode. A second hexagonal hollow cathode can be positioned concentric to the hexagonal hollow cathode.
    Type: Grant
    Filed: July 14, 2006
    Date of Patent: June 4, 2013
    Assignee: 4D-S Pty Ltd.
    Inventor: Makoto Nagashima
  • Publication number: 20130109150
    Abstract: Systems and methods are disclosed to form a resistive random access memory (RRAM) by forming a first metal electrode layer; depositing an insulator above the metal electrode layer and etching the insulator to expose one or more metal portions; depositing a Pr1-xCaxMnO3 (PCMO) layer above the insulator and the metal portions, wherein X is between approximately 0.3 and approximately 0.5, to form one or more self-aligned RRAM cells above the first metal electrode; and depositing a second metal electrode layer above the PCMO layer.
    Type: Application
    Filed: December 27, 2012
    Publication date: May 2, 2013
    Applicant: 4D-S PTY, LTD
    Inventor: 4D-S PTY, LTD
  • Patent number: 8395199
    Abstract: Systems and methods are disclosed to form a resistive random access memory (RRAM) by forming a first metal electrode layer; depositing an insulator above the metal electrode layer and etching the insulator to expose one or more metal portions; depositing a Pr1-XCaXMnO3 (PCMO) layer above the insulator and the metal portions, wherein X is between approximately 0.3 and approximately 0.5, to form one or more self-aligned RRAM cells above the first metal electrode; and depositing a second metal electrode layer above the PCMO layer.
    Type: Grant
    Filed: March 25, 2006
    Date of Patent: March 12, 2013
    Assignee: 4D-S Pty Ltd.
    Inventor: Makoto Nagashima
  • Patent number: 8378345
    Abstract: A memory device includes a first metal layer and a first metal oxide layer coupled to the first metal layer. The memory device includes a second metal oxide layer coupled to the first metal oxide layer and a second metal layer coupled to the second metal oxide layer. The formation of the first metal oxide layer has a Gibbs free energy that is lower than the Gibbs free energy for the formation of the second metal oxide layer.
    Type: Grant
    Filed: April 26, 2012
    Date of Patent: February 19, 2013
    Assignee: 4D-S Pty, Ltd
    Inventor: Dongmin Chen
  • Patent number: 8367513
    Abstract: Systems and methods are disclosed to form a resistive random access memory (RRAM) by forming a first metal electrode layer; depositing an insulator above the metal electrode layer and etching the insulator to expose one or more metal portions; depositing a Pr1-XCaXMnO3 (PCMO) layer above the insulator and the metal portions, wherein X is between approximately 0.3 and approximately 0.5, to form one or more self-aligned RRAM cells above the first metal electrode; and depositing a second metal electrode layer above the PCMO layer.
    Type: Grant
    Filed: April 22, 2011
    Date of Patent: February 5, 2013
    Assignee: 4D-S Pty Ltd.
    Inventor: Makoto Nagashima
  • Patent number: 8308915
    Abstract: Systems and methods are disclosed for face target sputtering to fabricate semiconductors by providing one or more materials with differential coefficients of expansion in the FTS chamber; and generating a controlled pressure and size with the one or more materials during sintering.
    Type: Grant
    Filed: September 14, 2006
    Date of Patent: November 13, 2012
    Assignee: 4D-S Pty Ltd.
    Inventor: Makoto Nagashima
  • Publication number: 20120205611
    Abstract: A memory device includes a first metal layer and a first metal oxide layer coupled to the first metal layer. The memory device includes a second metal oxide layer coupled to the first metal oxide layer and a second metal layer coupled to the second metal oxide layer.
    Type: Application
    Filed: April 26, 2012
    Publication date: August 16, 2012
    Applicant: 4D-S PTY, LTD
    Inventor: Dongmin Chen
  • Publication number: 20120199804
    Abstract: A memory device includes a first metal layer and a first metal oxide layer coupled to the first metal layer. The memory device includes a second metal oxide layer coupled to the first metal oxide layer and a second metal layer coupled to the second metal oxide layer.
    Type: Application
    Filed: February 14, 2012
    Publication date: August 9, 2012
    Applicant: 4D-S PTY, LTD
    Inventor: Dongmin CHEN
  • Publication number: 20120195097
    Abstract: A memory device is disclosed. In a first aspect the memory comprises a first doped awell; two wells of opposite doping implanted in the first doped well; and two bitlines located on top of the two wells. The memory includes a Perovsite material on top of the first doped well and located between two bitlines; and a wordline located above the Perovskite material. In a second aspect the memory comprises a first doped well; two wells of opposite doping implanted in the first doped well; and two bitlines located on top of the two wells. The memory includes a Perovskite material located within one of the bitlines and a wordline located above the first doped well and located between the two bitlines.
    Type: Application
    Filed: April 13, 2012
    Publication date: August 2, 2012
    Applicant: 4D-S PTY LTD.
    Inventor: Zhida LAN
  • Publication number: 20120195098
    Abstract: A memory device is disclosed. In a first aspect the memory comprises a first doped awell; two wells of opposite doping implanted in the first doped well; and two bitlines located on top of the two wells. The memory includes a Perovsite material on top of the first doped well and located between two bitlines; and a wordline located above the Perovskite material. In a second aspect the memory comprises a first doped well; two wells of opposite doping implanted in the first doped well; and two bitlines located on top of the two wells. The memory includes a Perovskite material located within one of the bitlines and a wordline located above the first doped well and located between the two bitlines.
    Type: Application
    Filed: March 29, 2011
    Publication date: August 2, 2012
    Applicant: 4D-S PTY LTD.
    Inventor: Zhida Lan
  • Publication number: 20120122290
    Abstract: Systems and methods are disclosed to form a resistive random access memory (RRAM) by forming a first metal electrode layer; depositing an insulator above the metal electrode layer and etching the insulator to expose one or more metal portions; depositing a Pr1-XCaXMnO3 (PCMO) layer above the insulator and the metal portions, wherein X is between approximately 0.3 and approximately 0.5, to form one or more self-aligned RRAM cells above the first metal electrode; and depositing a second metal electrode layer above the PCMO layer.
    Type: Application
    Filed: April 22, 2011
    Publication date: May 17, 2012
    Applicant: 4D-S PTY LTD.
    Inventor: Makoto NAGASHIMA
  • Patent number: 7985960
    Abstract: The present invention discloses a memory system comprising a plurality of crystals, and at least two conductors. The at least two conductors being orthogonal to each other. Wherein at least one of the plurality of crystals are bounded by the orthogonal intersection of the at least two conductors.
    Type: Grant
    Filed: February 16, 2009
    Date of Patent: July 26, 2011
    Assignee: 4D-S Pty Ltd.
    Inventor: Gilbert Springer
  • Patent number: 7932548
    Abstract: Systems and methods are disclosed to form a resistive random access memory (RRAM) by forming a first metal electrode layer; depositing an insulator above the metal electrode layer and etching the insulator to expose one or more metal portions; depositing a Pr1-XCaXMnO3 (PCMO) layer above the insulator and the metal portions, wherein X is between approximately 0.3 and approximately 0.5, to form one or more self-aligned RRAM cells above the first metal electrode; and depositing a second metal electrode layer above the PCMO layer.
    Type: Grant
    Filed: July 14, 2006
    Date of Patent: April 26, 2011
    Assignee: 4D-S Pty Ltd.
    Inventor: Makoto Nagashima