Patents by Inventor Sagy Levy

Sagy Levy 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: 11127855
    Abstract: A LDMOS transistor that may include (i) a first region that is a reduced surface field (RESURF) implant region of a first type; (ii) a second region that is a RESURF implant region of a second type, wherein the first type differs from the second type; (iii) a gate; (iv) a stepped oxide region and a gate oxide region that are positioned above the first region and below the gate.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: September 21, 2021
    Assignee: Tower Semiconductors Ltd.
    Inventors: Daniel Sherman, Sagy Levy, David Mistele
  • Patent number: 10903342
    Abstract: An embodiment of a semiconductor memory device including a multi-layer charge storing layer and methods of forming the same are described. Generally, the device includes a channel formed from a semiconducting material overlying a surface on a substrate connecting a source and a drain of the memory device; a tunnel oxide layer overlying the channel; and a multi-layer charge storing layer including an oxygen-rich, first oxynitride layer on the tunnel oxide layer in which a stoichiometric composition of the first oxynitride layer results in it being substantially trap free, and an oxygen-lean, second oxynitride layer on the first oxynitride layer in which a stoichiometric composition of the second oxynitride layer results in it being trap dense. In one embodiment, the device comprises a non-planar transistor including a gate having multiple surfaces abutting the channel, and the gate comprises the tunnel oxide layer and the multi-layer charge storing layer.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: January 26, 2021
    Assignee: LONGITUDE FLASH MEMORY SOLUTIONS LTD.
    Inventors: Sagy Levy, Krishnaswamy Ramkumar, Fredrick Jenne, Sam Geha
  • Patent number: 10896973
    Abstract: An embodiment of a semiconductor memory device including a multi-layer charge storing layer and methods of forming the same are described. Generally, the device includes a channel formed from a semiconducting material overlying a surface on a substrate connecting a source and a drain of the memory device; a tunnel oxide layer overlying the channel; and a multi-layer charge storing layer including an oxygen-rich, first oxynitride layer on the tunnel oxide layer in which a stoichiometric composition of the first oxynitride layer results in it being substantially trap free, and an oxygen-lean, second oxynitride layer on the first oxynitride layer in which a stoichiometric composition of the second oxynitride layer results in it being trap dense. In one embodiment, the device comprises a non-planar transistor including a gate having multiple surfaces abutting the channel, and the gate comprises the tunnel oxide layer and the multi-layer charge storing layer.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: January 19, 2021
    Assignee: LONGITUDE FLASH MEMORY SOLUTIONS LTD.
    Inventors: Sagy Levy, Krishnaswamy Ramkumar, Fredrick Jenne, Sam Geha
  • Publication number: 20200381553
    Abstract: A LDMOS transistor that may include (i) a first region that is a reduced surface field (RESURF) implant region of a first type; (ii) a second region that is a RESURF implant region of a second type, wherein the first type differs from the second type; (iii) a gate; (iv) a stepped oxide region and a gate oxide region that are positioned above the first region and below the gate.
    Type: Application
    Filed: May 28, 2019
    Publication date: December 3, 2020
    Inventors: Daniel Sherman, Sagy Levy, David Mistele
  • Publication number: 20200287056
    Abstract: A method for fabricating a nonvolatile charge trap memory device is described. The method includes subjecting a substrate to a first oxidation process to form a tunnel oxide layer overlying a polysilicon channel, and forming over the tunnel oxide layer a multi-layer charge storing layer comprising an oxygen-rich, first layer comprising a nitride, and an oxygen-lean, second layer comprising a nitride on the first layer. The substrate is then subjected to a second oxidation process to consume a portion of the second layer and form a high-temperature-oxide (HTO) layer overlying the multi-layer charge storing layer. The stoichiometric composition of the first layer results in it being substantially trap free, and the stoichiometric composition of the second layer results in it being trap dense. The second oxidation process can comprise a plasma oxidation process or a radical oxidation process using In-Situ Steam Generation.
    Type: Application
    Filed: March 16, 2020
    Publication date: September 10, 2020
    Inventors: Krishnaswamy Ramkumar, Sagy Levy, Jeong Soo Byun
  • Publication number: 20190319104
    Abstract: Scaling a charge trap memory device and the article made thereby. In one embodiment, the charge trap memory device includes a substrate having a source region, a drain region, and a channel region electrically connecting the source and drain. A tunnel dielectric layer is disposed above the substrate over the channel region, and a multi-layer charge-trapping region disposed on the tunnel dielectric layer.
    Type: Application
    Filed: March 12, 2019
    Publication date: October 17, 2019
    Inventors: Sagy Levy, Fredrick Jenne, Krishnaswamy Ramkumar
  • Patent number: 10374067
    Abstract: An embodiment of a semiconductor memory device including a multi-layer charge storing layer and methods of forming the same are described. Generally, the device includes a channel formed from a semiconducting material overlying a surface on a substrate connecting a source and a drain of the memory device; a tunnel oxide layer overlying the channel; and a multi-layer charge storing layer including an oxygen-rich, first oxynitride layer on the tunnel oxide layer in which a stoichiometric composition of the first oxynitride layer results in it being substantially trap free, and an oxygen-lean, second oxynitride layer on the first oxynitride layer in which a stoichiometric composition of the second oxynitride layer results in it being trap dense. In one embodiment, the device comprises a non-planar transistor including a gate having multiple surfaces abutting the channel, and the gate comprises the tunnel oxide layer and the multi-layer charge storing layer.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: August 6, 2019
    Assignee: LONGITUDE FLASH MEMORY SOLUTIONS LTD.
    Inventors: Sagy Levy, Krishnaswamy Ramkumar, Fredrick Jenne, Sam Geha
  • Patent number: 10263087
    Abstract: A memory is described. Generally, the memory includes a number of non-planar multigate transistors, each including a channel of semiconducting material overlying a surface of a substrate and electrically connecting a source and a drain, a tunnel dielectric layer overlying the channel on at least three sides thereof, and a multi-layer charge-trapping region overlying the tunnel dielectric layer. In one embodiment, the multi-layer charge-trapping region includes a first deuterated layer overlying the tunnel dielectric layer and a first nitride-containing layer overlying the first deuterated layer. Other embodiments are also described.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: April 16, 2019
    Assignee: Cypress Semiconductor Corporation
    Inventors: Sagy Levy, Fredrick Jenne, Krishnaswamy Ramkumar
  • Patent number: 10217826
    Abstract: Some demonstrative embodiments include a Metal-Oxide-Semiconductor (MOS) transistor including a multi-split gate. For example, an Integrated Circuit (IC) may include at least one MOS transistor, the MOS transistor may include a source; a drain; a body; and a multi-split gate including a control gate component configured to control conductivity of the MOS transistor, and at least first and second field plate gate components, the first field plate gate component is electrically isolated from the second field plate gate component, the first and second field plate gate components are electrically isolated from the control gate.
    Type: Grant
    Filed: November 20, 2016
    Date of Patent: February 26, 2019
    Assignee: TOWER SEMICONDUCTOR LTD.
    Inventors: Johnatan A. Kantarovsky, Sharon Levin, David Mistele, Sagy Levy
  • Publication number: 20180366563
    Abstract: An embodiment of a semiconductor memory device including a multi-layer charge storing layer and methods of forming the same are described. Generally, the device includes a channel formed from a semiconducting material overlying a surface on a substrate connecting a source and a drain of the memory device; a tunnel oxide layer overlying the channel; and a multi-layer charge storing layer including an oxygen-rich, first oxynitride layer on the tunnel oxide layer in which a stoichiometric composition of the first oxynitride layer results in it being substantially trap free, and an oxygen-lean, second oxynitride layer on the first oxynitride layer in which a stoichiometric composition of the second oxynitride layer results in it being trap dense. In one embodiment, the device comprises a non-planar transistor including a gate having multiple surfaces abutting the channel, and the gate comprises the tunnel oxide layer and the multi-layer charge storing layer.
    Type: Application
    Filed: May 30, 2018
    Publication date: December 20, 2018
    Applicant: Cypress Semiconductor Corporation
    Inventors: Sagy Levy, Krishnaswamy Ramkumar, Fredrick Jenne, Sam Geha
  • Publication number: 20180366564
    Abstract: An embodiment of a semiconductor memory device including a multi-layer charge storing layer and methods of forming the same are described. Generally, the device includes a channel formed from a semiconducting material overlying a surface on a substrate connecting a source and a drain of the memory device; a tunnel oxide layer overlying the channel; and a multi-layer charge storing layer including an oxygen-rich, first oxynitride layer on the tunnel oxide layer in which a stoichiometric composition of the first oxynitride layer results in it being substantially trap free, and an oxygen-lean, second oxynitride layer on the first oxynitride layer in which a stoichiometric composition of the second oxynitride layer results in it being trap dense. In one embodiment, the device comprises a non-planar transistor including a gate having multiple surfaces abutting the channel, and the gate comprises the tunnel oxide layer and the multi-layer charge storing layer.
    Type: Application
    Filed: May 30, 2018
    Publication date: December 20, 2018
    Applicant: Cypress Semiconductor Corporation
    Inventors: Sagy Levy, Krishnaswamy Ramkumar, Fredrick Jenne, Sam Geha
  • Publication number: 20180145139
    Abstract: Some demonstrative embodiments include a Metal-Oxide-Semiconductor (MOS) transistor including a multi-split gate. For example, an Integrated Circuit (IC) may include at least one MOS transistor, the MOS transistor may include a source; a drain; a body; and a multi-split gate including a control gate component configured to control conductivity of the MOS transistor, and at least first and second field plate gate components, the first field plate gate component is electrically isolated from the second field plate gate component, the first and second field plate gate components are electrically isolated from the control gate.
    Type: Application
    Filed: November 20, 2016
    Publication date: May 24, 2018
    Inventors: Johnatan A. Kantarovsky, Sharon Levin, David Mistele, Sagy Levy
  • Publication number: 20170352732
    Abstract: A memory is described. Generally, the memory includes a number of non-planar multigate transistors, each including a channel of semiconducting material overlying a surface of a substrate and electrically connecting a source and a drain, a tunnel dielectric layer overlying the channel on at least three sides thereof, and a multi-layer charge-trapping region overlying the tunnel dielectric layer. In one embodiment, the multi-layer charge-trapping region includes a first deuterated layer overlying the tunnel dielectric layer and a first nitride-containing layer overlying the first deuterated layer. Other embodiments are also described.
    Type: Application
    Filed: July 18, 2017
    Publication date: December 7, 2017
    Applicant: Cypress Semiconductor Corporation
    Inventors: Sagy Levy, Fredrick Jenne, Krishnaswamy Ramkumar
  • Patent number: 9837411
    Abstract: A semiconductor die that may include a substrate; an epitaxial layer; a metal layer; a first transistor; and a metal via that surrounds the first transistor, extends between the metal layer and the substrate, and penetrates the substrate.
    Type: Grant
    Filed: July 14, 2015
    Date of Patent: December 5, 2017
    Assignee: TOWER SEMICONDUCTORS LTD.
    Inventors: Sharon Levin, Alexey Heiman, Sagy Levy
  • Patent number: 9812566
    Abstract: A laterally diffused metal oxide semiconductor (LDMOS) device that may include an oxide region that comprises a bottom surface; a drain that is positioned between a left drift region and a right drift region and below the bottom surface; wherein the oxide region further comprises a first sloped surface and a second sloped surface; wherein a first angle between the first sloped surface and the bottom surface does not exceed twenty degrees; and wherein a second angle between the second sloped surface and the bottom surface of the oxide region does not exceed twenty degrees.
    Type: Grant
    Filed: July 3, 2016
    Date of Patent: November 7, 2017
    Assignee: TOWER SEMICONDUCTORS LTD.
    Inventors: Sagy Levy, Sharon Levin, David Mistele
  • Patent number: 9806174
    Abstract: A double-RESURF LDMOS transistor has a gate dielectric structure including a shallow field “bump” oxide region and an optional raised dielectric structure that provides a raised support for the LDMOS transistor's polysilicon gate electrode. Fabrication of the shallow field oxide region is performed through a hard “bump” mask and controlled such that the bump oxide extends a minimal depth into the LDMOS transistor's drift (channel) region. The hard “bump” mask is also utilized to produce an N-type drift (N-drift) implant region and a P-type surface effect (P-surf) implant region, whereby these implants are “self-aligned” to the gate dielectric structure. The N-drift implant is maintained at Vdd by connection to the LDMOS transistor's drain diffusion. An additional Boron implant is utilized to form a P-type buried layer that connects the P-surf implant to the P-body region of the LDMOS transistor, whereby the P-surf implant is maintained at 0V.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: October 31, 2017
    Assignee: Tower Semiconductor Ltd.
    Inventors: Sagy Levy, Sharon Levin, Noel Berkovitch
  • Patent number: 9741803
    Abstract: A charge trap memory device is provided. In one embodiment, the charge trap memory device includes a semiconductor material structure having a vertical channel extending from a first diffusion region formed in a semiconducting material to a second diffusion region formed over the first diffusion region, the vertical channel electrically connecting the first diffusion region to the second diffusion region. A tunnel dielectric layer is disposed on the vertical channel, a multi-layer charge-trapping region including a first deuterated layer disposed on the tunnel dielectric layer, a first nitride layer disposed on the first deuterated layer, and a second nitride layer comprising a deuterium-free trap-dense, oxygen-lean nitride disposed on the first nitride layer. The second nitride layer includes a majority of charge traps distributed in the multi-layer charge-trapping region.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: August 22, 2017
    Assignee: Cypress Semiconductor Corporation
    Inventors: Sagy Levy, Fredrick Jenne, Krishnaswamy Ramkumar
  • Patent number: 9716153
    Abstract: Scaling a charge trap memory device and the article made thereby. In one embodiment, the charge trap memory device includes a substrate having a source region, a drain region, and a channel region electrically connecting the source and drain. A tunnel dielectric layer is disposed above the substrate over the channel region, and a multi-layer charge-trapping region disposed on the tunnel dielectric layer. The multi-layer charge-trapping region includes a first deuterated layer disposed on the tunnel dielectric layer, a first nitride layer disposed on the first deuterated layer and a second nitride layer.
    Type: Grant
    Filed: July 1, 2012
    Date of Patent: July 25, 2017
    Assignee: Cypress Semiconductor Corporation
    Inventors: Sagy Levy, Fredrick Jenne, Krishnaswamy Ramkumar
  • Publication number: 20170018503
    Abstract: A semiconductor die that may include a substrate; an epitaxial layer; a metal layer; a first transistor; and a metal via that surrounds the first transistor, extends between the metal layer and the substrate, and penetrates the substrate.
    Type: Application
    Filed: July 14, 2015
    Publication date: January 19, 2017
    Inventors: Sharon Levin, Alexey Heiman, Sagy Levy
  • Publication number: 20160372578
    Abstract: A double-RESURF LDMOS transistor has a gate dielectric structure including a shallow field “bump” oxide region and an optional raised dielectric structure that provides a raised support for the LDMOS transistor's polysilicon gate electrode. Fabrication of the shallow field oxide region is performed through a hard “bump” mask and controlled such that the bump oxide extends a minimal depth into the LDMOS transistor's drift (channel) region. The hard “bump” mask is also utilized to produce an N-type drift (N-drift) implant region and a P-type surface effect (P-surf) implant region, whereby these implants are “self-aligned” to the gate dielectric structure. The N-drift implant is maintained at Vdd by connection to the LDMOS transistor's drain diffusion. An additional Boron implant is utilized to form a P-type buried layer that connects the P-surf implant to the P-body region of the LDMOS transistor, whereby the P-surf implant is maintained at 0V.
    Type: Application
    Filed: September 1, 2016
    Publication date: December 22, 2016
    Inventors: Sagy Levy, Sharon Levin, Noel Berkovitch