Patents by Inventor Yongxi Zhang

Yongxi Zhang 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: 11967123
    Abstract: Provided is a binarization method for CT sectional image of fiber package containing artifacts, which includes: performing brightness adjustment on the source image obtained after converting of the HSV image model by using a composite tangent function; creating a planar morphological structural element having a morphology similar to that of a target object to obtain a background image without the target object; obtaining a second intermediate image by a subtraction operation of the first intermediate image and the background image; improving an image contrast of the second intermediate image again to obtain a third intermediate image; and binarizing the third intermediate image by using a local adaptive threshold binarization algorithm and removing a background noise to obtain a final binarized image. The binarization method can improve the uneven brightness of the image under complex illumination, alleviate the artifacts, and strip similar objects from the background with similar gray scales.
    Type: Grant
    Filed: November 1, 2023
    Date of Patent: April 23, 2024
    Assignee: XIDIAN UNIVERSITY
    Inventors: Tengyin Shi, Yiqun Zhang, Zhuo Zhang, Hongzhang Feng, Shen Li, Dongwu Yang, Naigang Hu, Yongxi He
  • Publication number: 20230070151
    Abstract: A second-life battery-based super multi-objective energy management method for a smart community microgrid, including: establishing a residual life decay model of the second-life battery based on a residual charge and discharge cycle number; establishing a super multi-objective energy management model based on residential energy consumption costs, the residual life decay model of the second-life battery, residential electricity consumption behaviors, and impacts of residential community load on an electricity distribution system; recording state information of the second-life battery in the smart community; collecting residential electricity consumption information in the smart community, and predicting a renewable energy output value of the smart community; and solving the super multi-objective energy management model by using a NSGA-III algorithm combining with the state information of the second-life battery and the renewable energy output value.
    Type: Application
    Filed: November 16, 2022
    Publication date: March 9, 2023
    Inventors: Yongxi ZHANG, Youjun DENG, Yuanyuan WANG, Gongping WU
  • Patent number: 10937905
    Abstract: A semiconductor device includes at least a first transistor including at least a second level metal layer (second metal layer) above a first level metal layer coupled by a source contact to a source region doped with a first dopant type. The second level metal layer is coupled by a drain contact to a drain region doped with the first dopant type. A gate stack is between the source region and drain region having the second level metal layer coupled by a contact thereto. The second level metal layer is coupled by a contact to a first isolation region doped with the second dopant type. The source region and drain region are within the first isolation region. A second isolation region doped with the first dopant type encloses the first isolation region, and is not coupled to the second level metal layer so that it electrically floats.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: March 2, 2021
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Yongxi Zhang, Philip L. Hower, Sameer P. Pendharkar, John Lin, Guru Mathur, Scott Balster, Victor Sinow
  • Patent number: 10601422
    Abstract: An integrated circuit chip includes a bimodal power N-P-Laterally Diffused Metal Oxide Semiconductor (LDMOS) device having an N-gate coupled to receive an input signal and a level shifter coupled to receive the input signal and to provide a control signal to a P-gate driver of the N-P-LDMOS device. A method of operating an N-P-LDMOS power device is also disclosed.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: March 24, 2020
    Assignee: Texas Instruments Incorporated
    Inventors: Yongxi Zhang, Sameer P. Pendharkar, Philip L. Hower, Salvatore Giombanco, Filippo Marino, Seetharaman Sridhar
  • Patent number: 10319809
    Abstract: A semiconductor device contains an LDNMOS transistor with a lateral n-type drain drift region and a p-type RESURF region over the drain drift region. The RESURF region extends to a top surface of a substrate of the semiconductor device. The semiconductor device includes a shunt which is electrically coupled between the RESURF region and a low voltage node of the LDNMOS transistor. The shunt may be a p-type implanted layer in the substrate between the RESURF layer and a body of the LDNMOS transistor, and may be implanted concurrently with the RESURF layer. The shunt may be through an opening in the drain drift region from the RESURF layer to the substrate under the drain drift region. The shunt may be include metal interconnect elements including contacts and metal interconnect lines.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: June 11, 2019
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Yongxi Zhang, Philip L. Hower, John Lin, Guru Mathur, Scott G. Balster, Constantin Bulucea, Zachary K. Lee, Sameer P. Pendharkar
  • Patent number: 10304719
    Abstract: An integrated circuit is formed on a substrate containing a semiconductor material having a first conductivity type. A deep well having a second, opposite, conductivity type is formed in the semiconductor material of the first conductivity type. A deep isolation trench is formed in the substrate through the deep well so as separate an unused portion of the deep well from a functional portion of the deep well. The functional portion of the deep well contains an active circuit element of the integrated circuit. The separated portion of the deep well does not contain an active circuit element. A contact region having the second conductivity type and a higher average doping density than the deep well is formed in the separated portion of the deep well. The contact region is connected to a voltage terminal of the integrated circuit.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: May 28, 2019
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Yongxi Zhang, Eugen Mindricelu, Sameer Pendharkar, Seetharaman Sridhar
  • Patent number: 10121891
    Abstract: RESURF-based dual-gate p-n bimodal conduction laterally diffused metal oxide semiconductors (LDMOS). In an illustrative embodiment, a p-type source is electrically coupled to an n-type drain. A p-type drain is electrically coupled to an n-type source. An n-type layer serves as an n-type conduction channel between the n-type drain and the n-type source. A p-type top layer is disposed at the surface of the substrate of said semiconductor device and is disposed above and adjacent to the n-type layer. The p-type top layer serves as a p-type conduction channel between the p-type source and the p-type drain. An n-gate controls current flow in the n-type conduction channel, and a p-gate controls current flow in the p-type conduction channel.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: November 6, 2018
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Yongxi Zhang, Sameer P. Pendharkar, Henry Litzmann Edwards
  • Patent number: 9985028
    Abstract: A multi-finger lateral high voltage transistors (MFLHVT) includes a substrate doped a first dopant type, a well doped a second dopant type, and a buried drift layer (BDL) doped first type having a diluted BDL portion (DBDL) including dilution stripes. A semiconductor surface doped the second type is on the BDL. Dielectric isolation regions have gaps defining a first active area in a first gap region (first MOAT) and a second active area in a second gap region (second MOAT). A drain includes drain fingers in the second MOAT interdigitated with source fingers in the first MOAT each doped second type. The DBDL is within a fingertip drift region associated drain fingertips and/or source fingertips between the first and second MOAT. A gate stack is on the semiconductor surface between source and drain. The dilution stripes have stripe widths that increase monotonically with a drift length at their respective positions.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: May 29, 2018
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Yongxi Zhang, Sameer P. Pendharkar, Scott G. Balster
  • Publication number: 20180108729
    Abstract: A semiconductor device contains an LDNMOS transistor with a lateral n-type drain drift region and a p-type RESURF region over the drain drift region. The RESURF region extends to a top surface of a substrate of the semiconductor device. The semiconductor device includes a shunt which is electrically coupled between the RESURF region and a low voltage node of the LDNMOS transistor. The shunt may be a p-type implanted layer in the substrate between the RESURF layer and a body of the LDNMOS transistor, and may be implanted concurrently with the RESURF layer. The shunt may be through an opening in the drain drift region from the RESURF layer to the substrate under the drain drift region. The shunt may be include metal interconnect elements including contacts and metal interconnect lines.
    Type: Application
    Filed: December 15, 2017
    Publication date: April 19, 2018
    Inventors: Yongxi Zhang, Philip L. Hower, John Lin, Guru Mathur, Scott G. Balster, Constantin Bulucea, Zachary K. Lee, Sameer P. Pendharkar
  • Publication number: 20180097517
    Abstract: An integrated circuit chip includes a bimodal power N-P-Laterally Diffused Metal Oxide Semiconductor (LDMOS) device having an N-gate coupled to receive an input signal and a level shifter coupled to receive the input signal and to provide a control signal to a P-gate driver of the N-P-LDMOS device. A method of operating an N-P-LDMOS power device is also disclosed.
    Type: Application
    Filed: November 10, 2017
    Publication date: April 5, 2018
    Inventors: Yongxi Zhang, Sameer P. Pendharkar, Philip L. Hower, Salvatore Giombanco, Filippo Marino, Seetharaman Sridhar
  • Patent number: 9876071
    Abstract: A semiconductor device contains an LDNMOS transistor with a lateral n-type drain drift region and a p-type RESURF region over the drain drift region. The RESURF region extends to a top surface of a substrate of the semiconductor device. The semiconductor device includes a shunt which is electrically coupled between the RESURF region and a low voltage node of the LDNMOS transistor. The shunt may be a p-type implanted layer in the substrate between the RESURF layer and a body of the LDNMOS transistor, and may be implanted concurrently with the RESURF layer. The shunt may be through an opening in the drain drift region from the RESURF layer to the substrate under the drain drift region. The shunt may be include metal interconnect elements including contacts and metal interconnect lines.
    Type: Grant
    Filed: February 28, 2015
    Date of Patent: January 23, 2018
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Yongxi Zhang, Philip L Hower, John Lin, Guru Mathur, Scott G. Balster, Constantin Bulucea, Zachary K. Lee, Sameer P Pendharkar
  • Patent number: 9843322
    Abstract: An integrated circuit chip includes a bimodal power N-P-Laterally Diffused Metal Oxide Semiconductor (LDMOS) device having an N-gate coupled to receive an input signal and a level shifter coupled to receive the input signal and to provide a control signal to a P-gate driver of the N-P-LDMOS device. A method of operating an N-P-LDMOS power device is also disclosed.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: December 12, 2017
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Yongxi Zhang, Sameer P. Pendharkar, Philip L. Hower, Salvatore Giombanco, Filippo Marino, Seetharaman Sridhar
  • Patent number: 9806074
    Abstract: An integrated circuit and method having an LDMOS transistor with multiple current channels. A first current channel is above a buried p-type diffusion and a second one current channel is below the buried p-type diffusion.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: October 31, 2017
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Yongxi Zhang, Sameer P. Pendharkar
  • Publication number: 20170264289
    Abstract: An integrated circuit chip includes a bimodal power N-P-Laterally Diffused Metal Oxide Semiconductor (LDMOS) device having an N-gate coupled to receive an input signal and a level shifter coupled to receive the input signal and to provide a control signal to a P-gate driver of the N-P-LDMOS device. A method of operating an N-P-LDMOS power device is also disclosed.
    Type: Application
    Filed: March 11, 2016
    Publication date: September 14, 2017
    Inventors: Yongxi Zhang, Sameer P. Pendharkar, Philip L. Hower, Salvatore Giombanco, Filippo Marino, Seetharaman Sridhar
  • Patent number: 9735265
    Abstract: An integrated circuit including an isolated device which is isolated with a lower buried layer combined with deep trench isolation. An upper buried layer, with the same conductivity type as the substrate, is disposed over the lower buried layer, so that electrical contact to the lower buried layer is made at a perimeter of the isolated device. The deep trench isolation laterally surrounds the isolated device. Electrical contact to the lower buried layer sufficient to maintain a desired bias to the lower buried layer is made along less than half of the perimeter of the isolated device, between the upper buried layer and the deep trench.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: August 15, 2017
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Yongxi Zhang, Sameer Pendharkar, Seetharaman Sridhar
  • Publication number: 20170221896
    Abstract: A multi-finger lateral high voltage transistors (MFLHVT) includes a substrate doped a first dopant type, a well doped a second dopant type, and a buried drift layer (BDL) doped first type having a diluted BDL portion (DBDL) including dilution stripes. A semiconductor surface doped the second type is on the BDL. Dielectric isolation regions have gaps defining a first active area in a first gap region (first MOAT) and a second active area in a second gap region (second MOAT). A drain includes drain fingers in the second MOAT interdigitated with source fingers in the first MOAT each doped second type. The DBDL is within a fingertip drift region associated drain fingertips and/or source fingertips between the first and second MOAT. A gate stack is on the semiconductor surface between source and drain. The dilution stripes have stripe widths that increase monotonically with a drift length at their respective positions.
    Type: Application
    Filed: April 19, 2017
    Publication date: August 3, 2017
    Inventors: Yongxi ZHANG, Sameer P. PENDHARKAR, Scott G. BALSTER
  • Patent number: 9653577
    Abstract: A multi-finger lateral high voltage transistors (MFLHVT) includes a substrate doped a first dopant type, a well doped a second dopant type, and a buried drift layer (BDL) doped first type having a diluted BDL portion (DBDL) including dilution stripes. A semiconductor surface doped the second type is on the BDL. Dielectric isolation regions have gaps defining a first active area in a first gap region (first MOAT) and a second active area in a second gap region (second MOAT). A drain includes drain fingers in the second MOAT interdigitated with source fingers in the first MOAT each doped second type. The DBDL is within a fingertip drift region associated drain fingertips and/or source fingertips between the first and second MOAT. A gate stack is on the semiconductor surface between source and drain. The dilution stripes have stripe widths that increase monotonically with a drift length at their respective positions.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: May 16, 2017
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Yongxi Zhang, Sameer P. Pendharkar, Scott G. Balster
  • Publication number: 20170133261
    Abstract: An integrated circuit is formed on a substrate containing a semiconductor material having a first conductivity type. A deep well having a second, opposite, conductivity type is formed in the semiconductor material of the first conductivity type. A deep isolation trench is formed in the substrate through the deep well so as separate an unused portion of the deep well from a functional portion of the deep well. The functional portion of the deep well contains an active circuit element of the integrated circuit. The separated portion of the deep well does not contain an active circuit element. A contact region having the second conductivity type and a higher average doping density than the deep well is formed in the separated portion of the deep well. The contact region is connected to a voltage terminal of the integrated circuit.
    Type: Application
    Filed: January 23, 2017
    Publication date: May 11, 2017
    Inventors: Yongxi Zhang, Eugen Mindricelu, Sameer Pendharkar, Seetharaman Sridhar
  • Publication number: 20170084738
    Abstract: RESURF-based dual-gate p-n bimodal conduction laterally diffused metal oxide semiconductors (LDMOS). In an illustrative embodiment, a p-type source is electrically coupled to an n-type drain. A p-type drain is electrically coupled to an n-type source. An n-type layer serves as an n-type conduction channel between the n-type drain and the n-type source. A p-type top layer is disposed at the surface of the substrate of said semiconductor device and is disposed above and adjacent to the n-type layer. The p-type top layer serves as a p-type conduction channel between the p-type source and the p-type drain. An n-gate controls current flow in the n-type conduction channel, and a p-gate controls current flow in the p-type conduction channel.
    Type: Application
    Filed: November 30, 2016
    Publication date: March 23, 2017
    Inventors: Yongxi Zhang, Sameer P. Pendharkar, Henry Litzmann Edwards
  • Publication number: 20170062611
    Abstract: An integrated circuit including an isolated device which is isolated with a lower buried layer combined with deep trench isolation. An upper buried layer, with the same conductivity type as the substrate, is disposed over the lower buried layer, so that electrical contact to the lower buried layer is made at a perimeter of the isolated device. The deep trench isolation laterally surrounds the isolated device. Electrical contact to the lower buried layer sufficient to maintain a desired bias to the lower buried layer is made along less than half of the perimeter of the isolated device, between the upper buried layer and the deep trench.
    Type: Application
    Filed: November 10, 2016
    Publication date: March 2, 2017
    Inventors: Yongxi ZHANG, Sameer PENDHARKAR, Seetharaman SRIDHAR