Patents by Inventor Igor Polishchuk

Igor Polishchuk 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: 11269429
    Abstract: In one embodiment, a stylus with one or more electrodes and one or more computer-readable non-transitory storage media embodying logic for transmitting signals wirelessly to a device through a touch sensor of the device has one or more sensors for detecting movement of the stylus.
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: March 8, 2022
    Assignee: WACOM CO., LTD.
    Inventors: Esat Yilmaz, Trond Jarle Pedersen, John Logan, Vemund Kval Bakken, Kishore Sundara-Rajan, Joo Yong Um, Igor Polishchuk
  • Publication number: 20220005929
    Abstract: Semiconductor devices including non-volatile memory transistors and methods of fabricating the same to improve performance thereof are provided. In one embodiment, the memory transistor comprises an oxide-nitride-oxide (ONO) stack on a surface of a semiconductor substrate, and a high work function gate electrode formed over a surface of the ONO stack. Preferably, the gate electrode comprises a doped polysilicon layer, and the ONO stack comprises multi-layer charge storing layer including at least a substantially trap free bottom oxynitride layer and a charge trapping top oxynitride layer. More preferably, the device also includes a metal oxide semiconductor (MOS) logic transistor formed on the same substrate, the logic transistor including a gate oxide and a high work function gate electrode. In certain embodiments, the dopant is a P+ dopant and the memory transistor comprises N-type (NMOS) silicon-oxide-nitride-oxide-silicon (SONOS) transistor while the logic transistor a P-type (PMOS) transistor.
    Type: Application
    Filed: July 2, 2021
    Publication date: January 6, 2022
    Inventors: Igor Polishchuk, Sagy Charel Levy, Krishnaswamy Ramkumar
  • Publication number: 20210217862
    Abstract: An example memory device includes a channel positioned between and electrically connecting a first diffusion region and a second diffusion region, and a tunnel dielectric layer, a multi-layer charge trapping layer, and a blocking dielectric layer disposed between the gate structure and the channel. The multi-layer charge trapping layer includes a first dielectric layer disposed abutting a second dielectric layer and an anti-tunneling layer disposed between the first and second dielectric layers. The anti-tunneling layer includes an oxide layer. The first dielectric layer includes oxygen-rich nitride and the second dielectric layer includes oxygen-lean nitride.
    Type: Application
    Filed: January 25, 2021
    Publication date: July 15, 2021
    Inventors: Igor Polishchuk, Sagy Charel Levy, Krishnaswamy Ramkumar
  • Patent number: 11056565
    Abstract: Semiconductor devices including non-volatile memory transistors and methods of fabricating the same to improve performance thereof are provided. In one embodiment, the memory transistor comprises an oxide-nitride-oxide (ONO) stack on a surface of a semiconductor substrate, and a high work function gate electrode formed over a surface of the ONO stack. Preferably, the gate electrode comprises a doped polysilicon layer, and the ONO stack comprises multi-layer charge storing layer including at least a substantially trap free bottom oxynitride layer and a charge trapping top oxynitride layer. More preferably, the device also includes a metal oxide semiconductor (MOS) logic transistor formed on the same substrate, the logic transistor including a gate oxide and a high work function gate electrode. In certain embodiments, the dopant is a P+ dopant and the memory transistor comprises N-type (NMOS) silicon-oxide-nitride-oxide-silicon (SONOS) transistor while the logic transistor a P-type (PMOS) transistor.
    Type: Grant
    Filed: October 14, 2019
    Date of Patent: July 6, 2021
    Assignee: LONGITUDE FLASH MEMORY SOLUTIONS LTD.
    Inventors: Igor Polishchuk, Sagy Charel Levy, Krishnaswamy Ramkumar
  • Patent number: 10903325
    Abstract: An example memory device includes a channel positioned between and electrically connecting a first diffusion region and a second diffusion region, and a tunnel dielectric layer, a multi-layer charge trapping layer, and a blocking dielectric layer disposed between the gate structure and the channel. The multi-layer charge trapping layer includes a first dielectric layer disposed abutting a second dielectric layer and an anti-tunneling layer disposed between the first and second dielectric layers. The anti-tunneling layer includes an oxide layer. The first dielectric layer includes oxygen-rich nitride and the second dielectric layer includes oxygen-lean nitride.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: January 26, 2021
    Assignee: LONGITUDE FLASH MEMORY SOLUTIONS LTD.
    Inventors: Igor Polishchuk, Sagy Charel Levy, Krishnaswarny Ramkumar
  • Publication number: 20200356193
    Abstract: In one embodiment, a stylus receives a first signal from a first electrode of the stylus, the stylus being operable to communicate wirelessly with a device through a touch sensor of the device; receives a second signal from a second electrode of the stylus, the second signal being a reference signal and the second electrode being a reference electrode; and compares the first signal with the second signal.
    Type: Application
    Filed: July 27, 2020
    Publication date: November 12, 2020
    Inventors: Kishore Sundara-Rajan, Yassar Ali, Igor Polishchuk, James D. Lyle
  • Publication number: 20200303563
    Abstract: An embodiment of a nonvolatile charge trap memory device is described. In one embodiment, the device comprises a channel comprising silicon overlying a surface on a substrate electrically connecting a first diffusion region and a second diffusion region of the memory device, and a gate stack intersecting and overlying at least a portion of the channel, the gate stack comprising a tunnel oxide abutting the channel, a split charge-trapping region abutting the tunnel oxide, and a multi-layer blocking dielectric abutting the split charge-trapping region. The split charge-trapping region includes a first charge-trapping layer comprising a nitride closer to the tunnel oxide, and a second charge-trapping layer comprising a nitride overlying the first charge-trapping layer. The multi-layer blocking dielectric comprises at least a high-K dielectric layer.
    Type: Application
    Filed: April 6, 2020
    Publication date: September 24, 2020
    Inventors: Igor Polishchuk, Sagy Charel Levy, Krishnaswamy Ramkumar
  • Patent number: 10725564
    Abstract: In one embodiment, a stylus receives a first signal from a first electrode of the stylus, the stylus being operable to communicate wirelessly with a device through a touch sensor of the device; receives a second signal from a second electrode of the stylus, the second signal being a reference signal and the second electrode being a reference electrode; and compares the first signal with the second signal.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: July 28, 2020
    Assignee: Wacom Co., Ltd.
    Inventors: Kishore Sundara-Rajan, Yassar Ali, Igor Polishchuk, James D. Lyle
  • Publication number: 20200218372
    Abstract: In one embodiment, a stylus with one or more electrodes and one or more computer-readable non-transitory storage media embodying logic for transmitting signals wirelessly to a device through a touch sensor of the device has one or more sensors for detecting movement of the stylus.
    Type: Application
    Filed: March 20, 2020
    Publication date: July 9, 2020
    Inventors: Esat Yilmaz, Trond Jarle Pedersen, John Logan, Vemund Kval Bakken, Kishore Sundara-Rajan, Joo Yong Um, Igor Polishchuk
  • Publication number: 20200152752
    Abstract: Semiconductor devices including non-volatile memory transistors and methods of fabricating the same to improve performance thereof are provided. In one embodiment, the memory transistor comprises an oxide-nitride-oxide (ONO) stack on a surface of a semiconductor substrate, and a high work function gate electrode formed over a surface of the ONO stack. Preferably, the gate electrode comprises a doped polysilicon layer, and the ONO stack comprises multi-layer charge storing layer including at least a substantially trap free bottom oxynitride layer and a charge trapping top oxynitride layer. More preferably, the device also includes a metal oxide semiconductor (MOS) logic transistor formed on the same substrate, the logic transistor including a gate oxide and a high work function gate electrode. In certain embodiments, the dopant is a P+ dopant and the memory transistor comprises N-type (NMOS) silicon-oxide-nitride-oxide-silicon (SONOS) transistor while the logic transistor a P-type (PMOS) transistor.
    Type: Application
    Filed: October 14, 2019
    Publication date: May 14, 2020
    Inventors: Igor Polishchuk, Sagy Charel Levy, Krishnaswamy Ramkumar
  • Patent number: 10615289
    Abstract: An embodiment of a nonvolatile charge trap memory device is described. In one embodiment, the device comprises a channel comprising silicon overlying a surface on a substrate electrically connecting a first diffusion region and a second diffusion region of the memory device, and a gate stack intersecting and overlying at least a portion of the channel, the gate stack comprising a tunnel oxide abutting the channel, a split charge-trapping region abutting the tunnel oxide, and a multi-layer blocking dielectric abutting the split charge-trapping region. The split charge-trapping region includes a first charge-trapping layer comprising a nitride closer to the tunnel oxide, and a second charge-trapping layer comprising a nitride overlying the first charge-trapping layer. The multi-layer blocking dielectric comprises at least a high-K dielectric layer.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: April 7, 2020
    Assignee: LONGITUDE FLASH MEMORY SOLUTIONS LTD.
    Inventors: Igor Polishchuk, Sagy Charel Levy, Krishnaswamy Ramkumar
  • Patent number: 10599234
    Abstract: In one embodiment, a stylus with one or more electrodes and one or more computer-readable non-transitory storage media embodying logic for transmitting signals wirelessly to a device through a touch sensor of the device has one or more sensors for detecting movement of the stylus.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: March 24, 2020
    Assignee: Wacom Co., Ltd.
    Inventors: Esat Yilmaz, Trond Jarle Pedersen, John Logan, Vemund Kval Bakken, Kishore Sundara-Rajan, Joo Yong Um, Igor Polishchuk
  • Publication number: 20200013863
    Abstract: An example memory device includes a channel positioned between and electrically connecting a first diffusion region and a second diffusion region, and a tunnel dielectric layer, a multi-layer charge trapping layer, and a blocking dielectric layer disposed between the gate structure and the channel. The multi-layer charge trapping layer includes a first dielectric layer disposed abutting a second dielectric layer and an anti-tunneling layer disposed between the first and second dielectric layers. The anti-tunneling layer includes an oxide layer. The first dielectric layer includes oxygen-rich nitride and the second dielectric layer includes oxygen-lean nitride.
    Type: Application
    Filed: June 3, 2019
    Publication date: January 9, 2020
    Inventors: Igor Polishchuk, Sagy Charel Levy, Krishnaswarny Ramkumar
  • Patent number: 10446656
    Abstract: Semiconductor devices including non-volatile memory transistors and methods of fabricating the same to improve performance thereof are provided. In one embodiment, the memory transistor comprises an oxide-nitride-oxide (ONO) stack on a surface of a semiconductor substrate, and a high work function gate electrode formed over a surface of the ONO stack. Preferably, the gate electrode comprises a doped polysilicon layer, and the ONO stack comprises multi-layer charge storing layer including at least a substantially trap free bottom oxynitride layer and a charge trapping top oxynitride layer. More preferably, the device also includes a metal oxide semiconductor (MOS) logic transistor formed on the same substrate, the logic transistor including a gate oxide and a high work function gate electrode. In certain embodiments, the dopant is a P+ dopant and the memory transistor comprises N-type (NMOS) silicon-oxide-nitride-oxide-silicon (SONOS) transistor while the logic transistor a P-type (PMOS) transistor.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: October 15, 2019
    Assignee: LONGITUDE FLASH MEMORY SOLUTIONS LTD.
    Inventors: Igor Polishchuk, Sagy Charel Levy, Krishnaswamy Ramkumar
  • Patent number: 10411103
    Abstract: Semiconductor devices including non-volatile memory transistors and methods of fabricating the same to improve performance thereof are provided. In one embodiment, the memory transistor comprises an oxide-nitride-oxide (ONO) stack on a surface of a semiconductor substrate, and a high work function gate electrode formed over a surface of the ONO stack. Preferably, the gate electrode comprises a doped polysilicon layer, and the ONO stack comprises multi-layer charge storing layer including at least a substantially trap free bottom oxynitride layer and a charge trapping top oxynitride layer. More preferably, the device also includes a metal oxide semiconductor (MOS) logic transistor formed on the same substrate, the logic transistor including a gate oxide and a high work function gate electrode. In certain embodiments, the dopant is a P+ dopant and the memory transistor comprises N-type (NMOS) silicon-oxide-nitride-oxide-silicon (SONOS) transistor while the logic transistor a P-type (PMOS) transistor.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: September 10, 2019
    Assignee: LONGITUDE FLASH MEMORY SOLUTIONS LTD.
    Inventors: Igor Polishchuk, Sagy Charel Levy, Krishnaswamy Ramkumar
  • Patent number: 10365818
    Abstract: An input device includes a deformable input surface and a force sensing layer disposed beneath the deformable input surface. The force sensing layer includes a plurality of force sensors to detect forces exerted by an input object on the deformable input surface. A force transfer layer is disposed between the deformable input surface and the force sensing layer. The force transfer layer is configured to transmit a force exerted by the input object in a first region of the deformable input surface to one of the force sensors coinciding with a first area of the force sensing layer, and to distribute a force exerted by the input object in a second region of the deformable input surface to one or more of the force sensors coinciding with a second area of the force sensing layer, wherein the second area of the force sensing layer is larger than the first area.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: July 30, 2019
    Assignee: SYNAPTICS INCORPORATED
    Inventors: Igor Polishchuk, Shotaro Saito
  • Patent number: 10312336
    Abstract: Semiconductor devices including non-volatile memory devices and methods of fabricating the same are provided. Generally, the memory device includes a gate structure, a channel positioned between and electrically connecting a first diffusion region and a second diffusion region, and a tunnel dielectric layer, a multi-layer charge trapping layer, and a blocking dielectric layer disposed between the gate structure and the channel. In one embodiment, the multi-layer charge trapping layer includes a first dielectric layer disposed abutting a second dielectric layer and an anti-tunneling layer disposed between the first and second dielectric layers. The anti-tunneling layer includes an oxide, and the first and the second dielectric layers include a nitride. Other embodiments are also disclosed.
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: June 4, 2019
    Assignee: Cypress Semiconductor Corporation
    Inventors: Igor Polishchuk, Sagy Charel Levy, Krishnaswamy Ramkumar
  • Publication number: 20190138125
    Abstract: An input device includes a display configured to bend in response to a force being applied by an input object to an input surface of the input device; a compressible layer, and a force sensor disposed below the display and separated from the display by the compressible layer, the force sensor comprising a first force sensing electrode. A first capacitance measurement, corresponding to the force, is obtained from the first force sensing electrode against a conductive layer of the display as a gap size between the conductive layer and the force sensing electrode changes when the display bends.
    Type: Application
    Filed: August 7, 2018
    Publication date: May 9, 2019
    Inventors: Henry Zeng, Igor Polishchuk
  • Patent number: 10248270
    Abstract: A method for performing capacitive force sensing involves acquiring a plurality of changes of capacitance at a plurality of sensor electrodes, determining an input object location, obtaining a mixed signal representing the plurality of changes of capacitance at the input object location, wherein the mixed signal comprises a touch signal portion and a bending signal portion, identifying at least one inflection point using the mixed signal, using the at least one inflection point, identifying a touch signal region of the mixed signal, performing curve fitting to complete the bending signal portion in the touch signal region of the mixed signal to obtain a completed bending signal, and determining an applied force based on the completed bending signal.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: April 2, 2019
    Assignee: SYNAPTICS INCORPORATED
    Inventors: Ying Wang, Qingbiao Deng, Igor Polishchuk
  • Publication number: 20190087062
    Abstract: An input device includes a deformable input surface and a force sensing layer disposed beneath the deformable input surface. The force sensing layer includes a plurality of force sensors to detect forces exerted by an input object on the deformable input surface. A force transfer layer is disposed between the deformable input surface and the force sensing layer. The force transfer layer is configured to transmit a force exerted by the input object in a first region of the deformable input surface to one of the force sensors coinciding with a first area of the force sensing layer, and to distribute a force exerted by the input object in a second region of the deformable input surface to one or more of the force sensors coinciding with a second area of the force sensing layer, wherein the second area of the force sensing layer is larger than the first area.
    Type: Application
    Filed: September 20, 2017
    Publication date: March 21, 2019
    Inventors: Igor Polishchuk, Shotaro Saito