Patents by Inventor Natalia Lavrovskaya

Natalia Lavrovskaya 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).

  • Publication number: 20160141363
    Abstract: In a lateral BJT formed using a BiCMOS process, the collector-to-emitter breakdown voltage (BVCEO) and BJT's gain, are improved by forming a graded collector contact region with lower doping levels toward the base contact.
    Type: Application
    Filed: November 13, 2014
    Publication date: May 19, 2016
    Applicant: Texas Instruments Incorporated
    Inventors: Natalia Lavrovskaya, Alexei Sadovnikov
  • Patent number: 8669157
    Abstract: The number of times that a non-volatile memory (NVM) can be programmed and erased is substantially increased by utilizing a localized heating element that anneals the oxide that is damaged by tunneling charge carriers when the NVM is programmed and erased. The program and erase voltages are also reduced when heat from the heating element is applied prior to programming and erasing.
    Type: Grant
    Filed: May 21, 2012
    Date of Patent: March 11, 2014
    Assignee: National Semiconductor Corporation
    Inventors: Jeffrey A. Babcock, Yuri Mirgorodski, Natalia Lavrovskaya, Saurabh Desai
  • Publication number: 20120230118
    Abstract: The number of times that a non-volatile memory (NVM) can be programmed and erased is substantially increased by utilizing a localized heating element that anneals the oxide that is damaged by tunneling charge carriers when the NVM is programmed and erased. The program and erase voltages are also reduced when heat from the heating element is applied prior to programming and erasing.
    Type: Application
    Filed: May 21, 2012
    Publication date: September 13, 2012
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Jeffrey A. Babcock, Yuri Mirgorodski, Natalia Lavrovskaya, Saurabh Desai
  • Patent number: 8247862
    Abstract: A method is provided for enhancing charge storage in an E2PROM cell structure that includes a read transistor having spaced apart source an drain diffusion regions formed in a semiconductor substrate to define a substrate channel region therebetween, a conductive charge storage element formed over the substrate channel region and separated therefrom by gate dielectric material, a conductive control gate that is separated from the charge storage element by intervening dielectric material, and a conductive heating element disposed in proximity to the charge storage element. The method comprises performing a programming operation that causes charge to be placed on the charge storage element and, during the programming operation, heating the heating element to a temperature such that heat is provided to the charge storage element.
    Type: Grant
    Filed: March 2, 2010
    Date of Patent: August 21, 2012
    Assignee: National Semiconductor Corporation
    Inventors: Jeff A Babcock, Yuri Mirgorodski, Natalia Lavrovskaya, Saurabh Desai
  • Patent number: 8207559
    Abstract: In accordance with an aspect of the invention, A Schottky junction field effect transistor (JFET) is created using cobalt silicide, or other Schottky material, to form the gate contact of the JFET. The structural concepts can also be applied to a standard JFET that uses N? type or P? type dopants to form the gate of the JFET. In addition, the structures allow for an improved JFET linkup with buried linkup contacts allowing improved noise and reliability performance for both conventional diffusion (N? and P? channel) JFET structures and for Schottky JFET structures. In accordance with another aspect of the invention, the gate poly, as found in a standard CMOS or BiCMOS process flow, is used to perform the linkup between the source and the junction gate and/or between the drain and the junction gate of a junction filed effect transistor (JFET).
    Type: Grant
    Filed: July 6, 2009
    Date of Patent: June 26, 2012
    Assignee: Texas Instruments Incorporated
    Inventors: Jeffrey A. Babcock, Natalia Lavrovskaya, Saurabh Desai, Alexei Sadovnikov, Zia Alan Shafi
  • Patent number: 8183621
    Abstract: The number of times that a non-volatile memory (NVM) can be programmed and erased is substantially increased by utilizing a localized heating element that anneals the oxide that is damaged by tunneling charge carriers when the NVM is programmed and erased. The program and erase voltages are also reduced when heat from the heating element is applied prior to programming and erasing.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: May 22, 2012
    Assignee: Texas Instruments Incorporated
    Inventors: Jeffrey A. Babcock, Yuri Mirgorodski, Natalia Lavrovskaya, Saurabh Desai
  • Publication number: 20110147820
    Abstract: The number of times that a non-volatile memory (NVM) can be programmed and erased is substantially increased by utilizing a localized heating element that anneals the oxide that is damaged by tunneling charge carriers when the NVM is programmed and erased. The program and erase voltages are also reduced when heat from the heating element is applied prior to programming and erasing.
    Type: Application
    Filed: February 28, 2011
    Publication date: June 23, 2011
    Inventors: Jeffrey A. Babcock, Yuri Mirgorodski, Natalia Lavrovskaya, Saurabh Desai
  • Patent number: 7919805
    Abstract: In a non-volatile memory cell, a single poly SOI technology is used to save space and achieve low current programming by providing two capacitors formed in an n-material over an NBL, forming a inverter in an n-material over a PBL, and isolating the NBL from the PBL by means of a lightly doped region or a deep trench isolation region.
    Type: Grant
    Filed: May 25, 2007
    Date of Patent: April 5, 2011
    Assignee: National Semiconductor Corporation
    Inventors: Yuri Mirgorodski, Natalia Lavrovskaya, Saurabh Desai
  • Patent number: 7919807
    Abstract: The number of times that a non-volatile memory (NVM) can be programmed and erased is substantially increased by utilizing a localized heating element that anneals the oxide that is damaged by tunneling charge carriers when the NVM is programmed and erased. The program and erase voltages are also reduced when heat from the heating element is applied prior to programming and erasing.
    Type: Grant
    Filed: March 29, 2007
    Date of Patent: April 5, 2011
    Assignee: National Semiconductor Corporation
    Inventors: Jeffrey A. Babcock, Yuri Mirgorodski, Natalia Lavrovskaya, Saurabh Desai
  • Publication number: 20100157682
    Abstract: A method is provided for enhancing charge storage in an E2PROM cell structure that includes a read transistor having spaced apart source an drain diffusion regions formed in a semiconductor substrate to define a substrate channel region therebetween, a conductive charge storage element formed over the substrate channel region and separated therefrom by gate dielectric material, a conductive control gate that is separated from the charge storage element by intervening dielectric material, and a conductive heating element disposed in proximity to the charge storage element. The method comprises performing a programming operation that causes charge to be placed on the charge storage element and, during the programming operation, heating the heating element to a temperature such that heat is provided to the charge storage element.
    Type: Application
    Filed: March 2, 2010
    Publication date: June 24, 2010
    Applicant: National Semiconductor Corporation
    Inventors: Jeff A. Babcock, Yuri Mirgorodski, Natalia Lavrovskaya, Saurabh Desai
  • Patent number: 7719048
    Abstract: A heating element is utilized to improve the bias conditions of an E2PROM cell during program and erase operations. The heating element can also be used to anneal or condition the cell for improved charge storage. During a program or an erase operation, the cell's control gate and read transistor are set to ground. The heating element then has a voltage potential applied across its terminals, causing current to flow in this resistor. As the current density increases, the resistor begins to generate heat. This heat is thermally coupled into the cell's floating gate, causing its temperature to rise.
    Type: Grant
    Filed: April 26, 2007
    Date of Patent: May 18, 2010
    Assignee: National Semiconductor Corporation
    Inventors: Jeff A. Babcock, Yuri Mirgorodski, Natalia Lavrovskaya, Saurabh Desai
  • Publication number: 20100032731
    Abstract: In accordance with an aspect of the invention, A Schottky junction field effect transistor (JFET) is created using cobalt silicide, or other Schottky material, to form the gate contact of the JFET. The structural concepts can also be applied to a standard JFET that uses N? type or P? type dopants to form the gate of the JFET. In addition, the structures allow for an improved JFET linkup with buried linkup contacts allowing improved noise and reliability performance for both conventional diffusion (N? and P? channel) JFET structures and for Schottky JFET structures. In accordance with another aspect of the invention, the gate poly, as found in a standard CMOS or BiCMOS process flow, is used to perform the linkup between the source and the junction gate and/or between the drain and the junction gate of a junction filed effect transistor (JFET).
    Type: Application
    Filed: July 6, 2009
    Publication date: February 11, 2010
    Inventors: Jeffrey A. Babcock, Natalia Lavrovskaya, Saurabh Desai, Alexei Sadovnikov
  • Patent number: 7425741
    Abstract: A biased conductive plate is provided over an NVM cell structure to overcome data retention charge loss due to the presence of dielectric films that are conductive at higher temperatures. The biased conductive plate is preferably formed from the lowest metal layer in the fabrication process flow, but any biased conductive layer can be used.
    Type: Grant
    Filed: July 21, 2005
    Date of Patent: September 16, 2008
    Assignee: National Semiconductor Corporation
    Inventors: Andrew Strachan, Natalia Lavrovskaya, Saurabh Desai, Roozbeh Parsa, Yuri Mirgorodski