Patents by Inventor Santosh Sharma

Santosh Sharma 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: 20160079854
    Abstract: An electronic circuit is disclosed. The electronic circuit includes a substrate having GaN, and a power switch formed on the substrate and including a first control gate and a first source. The electronic circuit also includes a drive circuit formed on the substrate and including an output coupled to the first control gate, and a power supply having a supply voltage and coupled to the drive circuit, where the output can be driven to the supply voltage.
    Type: Application
    Filed: June 11, 2015
    Publication date: March 17, 2016
    Inventors: Daniel M. Kinzer, Santosh Sharma, Ju Jason Zhang
  • Publication number: 20160079979
    Abstract: GaN-based half bridge power conversion circuits employ control, support and logic functions that are monolithically integrated on the same devices as the power transistors. In some embodiments a low side GaN device communicates through one or more level shift circuits with a high side GaN device. Both the high side and the low side devices may have one or more integrated control, support and logic functions. Some devices employ electro-static discharge circuits and features formed within the GaN-based devices to improve the reliability and performance of the half bridge power conversion circuits.
    Type: Application
    Filed: March 24, 2015
    Publication date: March 17, 2016
    Inventors: Daniel M. Kinzer, Santosh Sharma, Ju Jason Zhang
  • Publication number: 20160079853
    Abstract: GaN-based half bridge power conversion circuits employ control, support and logic functions that are monolithically integrated on the same devices as the power transistors. In some embodiments a low side GaN device communicates through one or more level shift circuits with a high side GaN device. Both the high side and the low side devices may have one or more integrated control, support and logic functions. Some devices employ electro-static discharge circuits and features formed within the GaN-based devices to improve the reliability and performance of the half bridge power conversion circuits.
    Type: Application
    Filed: March 24, 2015
    Publication date: March 17, 2016
    Inventors: Daniel M. Kinzer, Santosh Sharma, Ju Jason Zhang
  • Publication number: 20160079844
    Abstract: GaN-based half bridge power conversion circuits employ control, support and logic functions that are monolithically integrated on the same devices as the power transistors. In some embodiments a low side GaN device communicates through one or more level shift circuits with a high side GaN device. Both the high side and the low side devices may have one or more integrated control, support and logic functions. Some devices employ electro-static discharge circuits and features formed within the GaN-based devices to improve the reliability and performance of the half bridge power conversion circuits.
    Type: Application
    Filed: March 24, 2015
    Publication date: March 17, 2016
    Inventors: Daniel M. Kinzer, Santosh Sharma, Ju Jason Zhang
  • Publication number: 20160079785
    Abstract: GaN-based half bridge power conversion circuits employ control, support and logic functions that are monolithically integrated on the same devices as the power transistors. In some embodiments a low side GaN device communicates through one or more level shift circuits with a high side GaN device. Both the high side and the low side devices may have one or more integrated control, support and logic functions. Some devices employ electro-static discharge circuits and features formed within the GaN-based devices to improve the reliability and performance of the half bridge power conversion circuits.
    Type: Application
    Filed: March 24, 2015
    Publication date: March 17, 2016
    Inventors: Daniel M. Kinzer, Santosh Sharma, Ju Jason Zhang
  • Publication number: 20160079975
    Abstract: GaN-based half bridge power conversion circuits employ control, support and logic functions that are monolithically integrated on the same devices as the power transistors. In some embodiments, a low side GaN device communicates through one or more level shift circuits with a high side GaN device. Both the high side and the low side devices may have one or more integrated control, support and logic functions.
    Type: Application
    Filed: October 7, 2015
    Publication date: March 17, 2016
    Inventors: Daniel M. Kinzer, Santosh Sharma, Ju Jason Zhang
  • Publication number: 20160079978
    Abstract: GaN-based half bridge power conversion circuits employ control, support and logic functions that are monolithically integrated on the same devices as the power transistors. In some embodiments a low side GaN device communicates through one or more level shift circuits with a high side GaN device. Both the high side and the low side devices may have one or more integrated control, support and logic functions. Some devices employ electro-static discharge circuits and features formed within the GaN-based devices to improve the reliability and performance of the half bridge power conversion circuits.
    Type: Application
    Filed: March 24, 2015
    Publication date: March 17, 2016
    Inventors: Daniel M. Kinzer, Santosh Sharma, Ju Jason Zhang
  • Publication number: 20160079964
    Abstract: GaN-based half bridge power conversion circuits employ control, support and logic functions that are monolithically integrated on the same devices as the power transistors. In some embodiments a low side GaN device communicates through one or more level shift circuits with a high side GaN device. Both the high side and the low side devices may have one or more integrated control, support and logic functions. Some devices employ electro-static discharge circuits and features formed within the GaN-based devices to improve the reliability and performance of the half bridge power conversion circuits.
    Type: Application
    Filed: June 2, 2015
    Publication date: March 17, 2016
    Inventors: Daniel M. Kinzer, Santosh Sharma, Ju Jason Zhang
  • Patent number: 9240463
    Abstract: High-voltage LDMOS devices with voltage linearizing field plates and methods of manufacture are disclosed. The method includes forming an array of poly islands and a control gate structure by patterning a poly layer formed over a deep well region and a body of a substrate. The method further includes forming a metal shield in contact with the control gate structure and over the array of poly islands.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: January 19, 2016
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: John J. Ellis-Monaghan, Theodore J. Letavic, Santosh Sharma, Yun Shi, Michael J. Zierak
  • Patent number: 9236449
    Abstract: A high-voltage LDMOS device with voltage linearizing field plates and methods of manufacture are disclosed. The method includes forming a continuous gate structure over a deep well region and a body of a substrate. The method further includes forming oppositely doped, alternating segments in the continuous gate structure. The method further includes forming a contact in electrical connection with a tip of the continuous gate structure and a drain region formed in the substrate. The method further includes forming metal regions in direct electrical contact with segments of at least one species of the oppositely doped, alternating segments.
    Type: Grant
    Filed: July 11, 2013
    Date of Patent: January 12, 2016
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: John J. Ellis-Monaghan, Theodore J. Letavic, Santosh Sharma, Yun Shi, Michael J. Zierak
  • Patent number: 9224858
    Abstract: Disclosed are a field effect transistor (FET) (e.g., a lateral double-diffused metal oxide semiconductor field effect transistor (LDMOSFET)) and a method of forming the FET. In the FET, an etch stop pad is on a semiconductor substrate (e.g., a P-type silicon substrate). A semiconductor layer (e.g., a silicon layer) is also on the substrate and extends laterally over the etch stop pad. A first well region (e.g., an N-well region) extends through the semiconductor layer into the substrate such that it contains the etch stop pad. A second well region (e.g., a P-well region) is in the first well region aligned above the etch stop pad. A source region (e.g., a N-type source region) is in the second well region. A buried isolation region (e.g., a buried air-gap isolation region) is within the first well region aligned below the etch stop pad so as to limit vertical capacitor formation.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: December 29, 2015
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Renata Camillo-Castillo, Santosh Sharma, Yun Shi, Anthony K. Stamper
  • Publication number: 20150318378
    Abstract: Low leakage, high frequency devices and methods of manufacture are disclosed. The method of forming a device includes implanting a lateral diffusion drain implant in a substrate by a blanket implantation process. The method further includes forming a self-aligned tapered gate structure on the lateral diffusion drain implant. The method further includes forming a halo implant in the lateral diffusion drain implant, adjacent to the self-aligned tapered gate structure and at least partially under a source region of the self-aligned tapered gate structure.
    Type: Application
    Filed: May 5, 2014
    Publication date: November 5, 2015
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Theodore J. LETAVIC, Max G. LEVY, Santosh SHARMA, Yun SHI
  • Publication number: 20150255539
    Abstract: Various embodiments include field effect transistor (FET) structures and methods of forming such structures. In various embodiments, an FET structure includes: a deep n-type well; a shallow n-type well within the deep n-type well; and a shallow trench isolation (STI) region within the shallow n-type well, the STI region including: a first section having a first depth within the shallow n-type well as measured from an upper surface of the shallow n-type well, and a second section contacting and overlying the first section, the second section having a second depth within the shallow n-type well as measured from the upper surface of the shallow n-type well.
    Type: Application
    Filed: May 14, 2015
    Publication date: September 10, 2015
    Inventors: Natalie B. Feilchenfeld, Max G. Levy, Richard A. Phelps, Santosh Sharma, Yun Shi, Michael J. Zierak
  • Patent number: 9059276
    Abstract: High-voltage LDMOS devices with voltage linearizing field plates and methods of manufacture are disclosed. The method includes forming an insulator layer of varying depth over a drift region and a body of a substrate. The method further includes forming a control gate and a split gate region by patterning a layer of material on the insulator layer. The split gate region is formed on a first portion of the insulator layer and the control gate is formed on a second portion of the insulator layer, which is thinner than the first portion.
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: June 16, 2015
    Assignee: International Business Machines Corporation
    Inventors: Natalie B. Feilchenfeld, Theodore J. Letavic, Richard A. Phelps, Santosh Sharma, Yun Shi, Michael J. Zierak
  • Patent number: 8981475
    Abstract: A lateral diffusion metal oxide semiconductor (LDMOS) comprises a semiconductor substrate having an STI structure in a top surface of the substrate, a drift region below the STI structure, and a source region and a drain region on opposite sides of the STI structure. A gate conductor is on the substrate over a gap between the STI structure and the source region and partially overlaps the drift region. A conformal dielectric layer is on the top surface and forms a mesa above the gate conductor. The conformal dielectric layer has a conformal etch-stop layer embedded therein. Contact studs extend through the dielectric layer and the etch-stop layer, and are connected to the source region, drain region, and gate conductor. A source electrode contacts the source contact stud, a gate electrode contacts the gate contact stud, and a drain electrode contacts the drain contact stud. A drift electrode is over the drift region.
    Type: Grant
    Filed: June 18, 2013
    Date of Patent: March 17, 2015
    Assignee: International Business Machines Corporation
    Inventors: Santosh Sharma, Yun Shi, Anthony K. Stamper
  • Patent number: 8962402
    Abstract: A lateral diffusion metal oxide semiconductor (LDMOS) comprises a semiconductor substrate having an STI structure in a top surface of the substrate, a drift region below the STI structure, and a source region and a drain region on opposite sides of the STI structure. A gate conductor is on the substrate over a gap between the STI structure and the source region, and partially overlaps the drift region. Floating gate pieces are over the STI structure. A conformal dielectric layer is on the top surface and on the gate conductor and floating gate pieces and forms a mesa above the gate conductor and floating gate pieces. A conformal etch-stop layer is embedded within the conformal dielectric layer. A drift electrode is formed on the conformal etch-stop layer over, relative to the top surface, the drift region. The drift electrode has a variable thickness relative to the top surface.
    Type: Grant
    Filed: August 14, 2013
    Date of Patent: February 24, 2015
    Assignee: International Business Machines Corporation
    Inventors: Santosh Sharma, Yun Shi, Anthony K. Stamper
  • Publication number: 20150048447
    Abstract: A lateral diffusion metal oxide semiconductor (LDMOS) comprises a semiconductor substrate having an STI structure in a top surface of the substrate, a drift region below the STI structure, and a source region and a drain region on opposite sides of the STI structure. A gate conductor is on the substrate over a gap between the STI structure and the source region, and partially overlaps the drift region. Floating gate pieces are over the STI structure. A conformal dielectric layer is on the top surface and on the gate conductor and floating gate pieces and forms a mesa above the gate conductor and floating gate pieces. A conformal etch-stop layer is embedded within the conformal dielectric layer. A drift electrode is formed on the conformal etch-stop layer over, relative to the top surface, the drift region. The drift electrode has a variable thickness relative to the top surface.
    Type: Application
    Filed: August 14, 2013
    Publication date: February 19, 2015
    Applicant: International Business Machines Corporation
    Inventors: Santosh Sharma, Yun Shi, Anthony K. Stamper
  • Publication number: 20150014769
    Abstract: A high-voltage LDMOS device with voltage linearizing field plates and methods of manufacture are disclosed. The method includes forming a continuous gate structure over a deep well region and a body of a substrate. The method further includes forming oppositely doped, alternating segments in the continuous gate structure. The method further includes forming a contact in electrical connection with a tip of the continuous gate structure and a drain region formed in the substrate. The method further includes forming metal regions in direct electrical contact with segments of at least one species of the oppositely doped, alternating segments.
    Type: Application
    Filed: July 11, 2013
    Publication date: January 15, 2015
    Inventors: John J. ELLIS-MONAGHAN, Theodore J. LETAVIC, Santosh SHARMA, Yun SHI, Michael J. ZIERAK
  • Publication number: 20140367778
    Abstract: A lateral diffusion metal oxide semiconductor (LDMOS) comprises a semiconductor substrate having an STI structure in a top surface of the substrate, a drift region below the STI structure, and a source region and a drain region on opposite sides of the STI structure. A gate conductor is on the substrate over a gap between the STI structure and the source region and partially overlaps the drift region. A conformal dielectric layer is on the top surface and forms a mesa above the gate conductor. The conformal dielectric layer has a conformal etch-stop layer embedded therein. Contact studs extend through the dielectric layer and the etch-stop layer, and are connected to the source region, drain region, and gate conductor. A source electrode contacts the source contact stud, a gate electrode contacts the gate contact stud, and a drain electrode contacts the drain contact stud. A drift electrode is over the drift region.
    Type: Application
    Filed: June 18, 2013
    Publication date: December 18, 2014
    Inventors: Santosh Sharma, Yun Shi, Anthony K. Stamper
  • Publication number: 20140346596
    Abstract: High-voltage LDMOS devices with voltage linearizing field plates and methods of manufacture are disclosed. The method includes forming an array of poly islands and a control gate structure by patterning a poly layer formed over a deep well region and a body of a substrate. The method further includes forming a metal shield in contact with the control gate structure and over the array of poly islands.
    Type: Application
    Filed: May 24, 2013
    Publication date: November 27, 2014
    Inventors: John J. Ellis-Monaghan, Theodore J. Letavic, Santosh Sharma, Yun Shi, Michael J. Zierak