Patents by Inventor Sujit Banerjee

Sujit Banerjee 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: 20230340267
    Abstract: Engineered wood products and binder compositions for cold-pressed applications are provided. Methods are also provided for formulating binders and producing the engineered wood products. The binder comprises a soy product and an adhesive formulation. The binders are prepared by mixing the soy product with the adhesive formulation prior to application to a lignocellulosic material to form the engineered wood. The present compositions and methods provide enhanced bonding and shorter holding time at decreased cost.
    Type: Application
    Filed: April 21, 2023
    Publication date: October 26, 2023
    Applicant: AUBURN UNIVERSITY
    Inventors: BRIAN VIA, SUJIT BANERJEE, OSEI A. ASAFU-ADJAYE, ABIODUN O. ALAWODE
  • Publication number: 20230115487
    Abstract: Methods of dewatering viscous materials are provided. The method comprises contacting the viscous material with pressurized carbon dioxide at a temperature and for a time wherein at least a fraction of water is expressed from the viscous material. Then the pressure is released, and the water expressed from the viscous material is removed to yield a dewatered product. Exemplary viscous materials that can be dewatered by the method include black liquor from wood pulping operations, wet lignin, wet super water absorbent polymers and sugar solutions. The pressurized carbon dioxide is present in subcritical or supercritical form. The method provides dewatering at reduced cost.
    Type: Application
    Filed: September 28, 2022
    Publication date: April 13, 2023
    Applicant: Auburn University
    Inventors: Osei Asafu-Adjaye, Brian Via, Bhima Sastri, Sujit Banerjee
  • Patent number: 11315845
    Abstract: Semiconductor devices comprising a getter material are described. The getter material can be located in or over the active region of the device and/or in or over a termination region of the device. The getter material can be a conductive or an insulating material. The getter material can be present as a continuous or discontinuous film. The device can be a SiC semiconductor device such as a SiC vertical MOSFET. Methods of making the devices are also described. Semiconductor devices and methods of making the same comprising source ohmic contacts formed using a self-aligned process are also described. The source ohmic contacts can comprise titanium silicide and/or titanium silicide carbide and can act as a getter material.
    Type: Grant
    Filed: August 17, 2020
    Date of Patent: April 26, 2022
    Assignee: Monolith Semiconductor, Inc.
    Inventors: Kevin Matocha, John Nowak, Kiran Chatty, Sujit Banerjee
  • Patent number: 10910501
    Abstract: A device may include a P-N diode, formed within a SiC substrate. The device may include an N-type region formed within the SiC substrate, a P-type region, formed in an upper portion of the N-type region; and an implanted N-type layer, the implanted N-type layer being disposed between the P-type region and the N-type region.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: February 2, 2021
    Assignee: Monolith Semiconductor, Inc.
    Inventors: Kevin Matocha, Kiran Chatty, Blake Powell, Sujit Banerjee
  • Patent number: 10899039
    Abstract: Engineered wood products and binder compositions are provided. In preferred embodiments, the engineered wood products include wax. Methods are also provided for formulating binders for wood comprising unmodified soy flour and synthetic adhesives. The soy-based formulations are prepared by mixing unmodified soy flour with the synthetic adhesive prior to application to the wood or by adding them sequentially to the wood. The present invention provides adequate bonding at reduced cost.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: January 26, 2021
    Assignee: Auburn University
    Inventors: Brian Via, Sujit Banerjee
  • Publication number: 20210005523
    Abstract: Semiconductor devices comprising a getter material are described. The getter material can be located in or over the active region of the device and/or in or over a termination region of the device. The getter material can be a conductive or an insulating material. The getter material can be present as a continuous or discontinuous film. The device can be a SiC semiconductor device such as a SiC vertical MOSFET. Methods of making the devices are also described. Semiconductor devices and methods of making the same comprising source ohmic contacts formed using a self-aligned process are also described. The source ohmic contacts can comprise titanium silicide and/or titanium silicide carbide and can act as a getter material.
    Type: Application
    Filed: August 17, 2020
    Publication date: January 7, 2021
    Applicant: Monolith Semiconductor Inc.
    Inventors: Kevin Matocha, John Nowak, Kiran Chatty, Sujit Banerjee
  • Patent number: 10804175
    Abstract: Semiconductor devices comprising a getter material are described. The getter material can be located in or over the active region of the device and/or in or over a termination region of the device. The getter material can be a conductive or an insulating material. The getter material can be present as a continuous or discontinuous film. The device can be a SiC semiconductor device such as a SiC vertical MOSFET. Methods of making the devices are also described. Semiconductor devices and methods of making the same comprising source ohmic contacts formed using a self-aligned process are also described. The source ohmic contacts can comprise titanium silicide and/or titanium silicide carbide and can act as a getter material.
    Type: Grant
    Filed: March 1, 2017
    Date of Patent: October 13, 2020
    Assignee: MONOLITH SEMICONDUCTOR, INC.
    Inventors: Kevin Matocha, John Nowak, Kiran Chatty, Sujit Banerjee
  • Patent number: 10692999
    Abstract: A SiC MOSFET device having low specific on resistance is described. The device has N+, P-well and JFET regions extended in one direction (Y-direction) and P+ and source contacts extended in an orthogonal direction (X-direction). The polysilicon gate of the device covers the JFET region and is terminated over the P-well region to minimize electric field at the polysilicon gate edge. In use, current flows vertically from the drain contact at the bottom of the structure into the JFET region and then laterally in the X direction through the accumulation region and through the MOSFET channels into the adjacent N+ region. The current flowing out of the channel then flows along the N+ region in the Y-direction and is collected by the source contacts and the final metal. Methods of making the device are also described.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: June 23, 2020
    Assignee: MONOLITH SEMICONDUCTOR INC.
    Inventors: Sujit Banerjee, Kevin Matocha, Kiran Chatty
  • Publication number: 20200075780
    Abstract: A device may include a P-N diode, formed within a SiC substrate. The device may include an N-type region formed within the SiC substrate, a P-type region, formed in an upper portion of the N-type region; and an implanted N-type layer, the implanted N-type layer being disposed between the P-type region and the N-type region.
    Type: Application
    Filed: September 5, 2018
    Publication date: March 5, 2020
    Applicant: Monolith Semiconductor Inc.
    Inventors: Kevin Matocha, Kiran Chatty, Blake Powell, Sujit Banerjee
  • Patent number: 10361302
    Abstract: A SiC MOSFET device having low specific on resistance is described. The device has N+, P-well and JFET regions extended in one direction (Y-direction) and P+ and source contacts extended in an orthogonal direction (X-direction). The polysilicon gate of the device covers the JFET region and is terminated over the P-well region to minimize electric field at the polysilicon gate edge. In use, current flows vertically from the drain contact at the bottom of the structure into the JFET region and then laterally in the X direction through the accumulation region and through the MOSFET channels into the adjacent N+ region. The current flowing out of the channel then flows along the N+ region in the Y-direction and is collected by the source contacts and the final metal. Methods of making the device are also described.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: July 23, 2019
    Assignee: Monolith Semiconductor Inc.
    Inventors: Sujit Banerjee, Kevin Matocha, Kiran Chatty
  • Patent number: 10290732
    Abstract: A multi-cell MOSFET device including a MOSFET cell with an integrated Schottky diode is provided. The MOSFET includes n-type source regions formed in p-type well regions which are formed in an n-type drift layer. A p-type body contact region is formed on the periphery of the MOSFET. The source metallization of the device forms a Schottky contact with an n-type semiconductor region adjacent the p-type body contact region of the device. Vias can be formed through a dielectric material covering the source ohmic contacts and/or Schottky region of the device and the source metallization can be formed in the vias. The n-type semiconductor region forming the Schottky contact and/or the n-type source regions can be a single continuous region or a plurality of discontinuous regions alternating with discontinuous p-type body contact regions. The device can be a SiC device. Methods of making the device are also provided.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: May 14, 2019
    Assignee: Monolith Semiconductor Inc.
    Inventors: Kevin Matocha, Kiran Chatty, Sujit Banerjee
  • Patent number: 10266694
    Abstract: Methods are provided for formulating binders for wood comprising unmodified soy flour and synthetic adhesives. The soy-based formulations can be in either liquid or solid form and are prepared by mixing unmodified soy flour with the synthetic adhesive prior to application to the wood or by adding them sequentially to the wood. The present invention provides adequate bonding at reduced cost.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: April 23, 2019
    Assignee: Auburn University
    Inventors: Brian Via, William G. Hand, Sujit Banerjee
  • Patent number: 10062749
    Abstract: Metal-oxide-semiconductor field-effect transistor (MOSFET) devices are described which have a p-type region between the p-type well regions of the device. The p-type region can be either floating or connected to the p-type well regions by additional p-type regions. MOSFET devices are also described which have one or more p-type regions connecting the p-type well regions of the device. The p-type well regions can be arranged in a various geometric arrangements including square, diamond and hexagonal. Methods of making the devices are also described.
    Type: Grant
    Filed: June 12, 2014
    Date of Patent: August 28, 2018
    Assignee: Monolith Semiconductor Inc.
    Inventors: Kiran Chatty, Kevin Matocha, Sujit Banerjee, Larry Burton Rowland
  • Publication number: 20180175188
    Abstract: A SiC MOSFET device having low specific on resistance is described. The device has N+, P-well and JFET regions extended in one direction (Y-direction) and P+ and source contacts extended in an orthogonal direction (X-direction). The polysilicon gate of the device covers the JFET region and is terminated over the P-well region to minimize electric field at the polysilicon gate edge. In use, current flows vertically from the drain contact at the bottom of the structure into the JFET region and then laterally in the X direction through the accumulation region and through the MOSFET channels into the adjacent N+ region. The current flowing out of the channel then flows along the N+ region in the Y-direction and is collected by the source contacts and the final metal. Methods of making the device are also described.
    Type: Application
    Filed: February 7, 2018
    Publication date: June 21, 2018
    Inventors: Sujit Banerjee, Kevin Matocha, Kiran Chatty
  • Patent number: 9991376
    Abstract: A SiC MOSFET device having low specific on resistance is described. The device has N+, P-well and JFET regions extended in one direction (Y-direction) and P+ and source contacts extended in an orthogonal direction (X-direction). The polysilicon gate of the device covers the JFET region and is terminated over the P-well region to minimize electric field at the polysilicon gate edge. In use, current flows vertically from the drain contact at the bottom of the structure into the JFET region and then laterally in the X direction through the accumulation region and through the MOSFET channels into the adjacent N+ region. The current flowing out of the channel then flows along the N+ region in the Y-direction and is collected by the source contacts and the final metal. Methods of making the device are also described.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: June 5, 2018
    Assignee: Monolith Semiconductor Inc.
    Inventors: Sujit Banerjee, Kevin Matocha, Kiran Chatty
  • Publication number: 20180122933
    Abstract: A multi-cell MOSFET device including a MOSFET cell with an integrated Schottky diode is provided. The MOSFET includes n-type source regions formed in p-type well regions which are formed in an n-type drift layer. A p-type body contact region is formed on the periphery of the MOSFET. The source metallization of the device forms a Schottky contact with an n-type semiconductor region adjacent the p-type body contact region of the device. Vias can be formed through a dielectric material covering the source ohmic contacts and/or Schottky region of the device and the source metallization can be formed in the vias. The n-type semiconductor region forming the Schottky contact and/or the n-type source regions can be a single continuous region or a plurality of discontinuous regions alternating with discontinuous p-type body contact regions. The device can be a SiC device. Methods of making the device are also provided.
    Type: Application
    Filed: December 18, 2017
    Publication date: May 3, 2018
    Inventors: Kevin MATOCHA, Kiran CHATTY, Sujit BANERJEE
  • Publication number: 20180047844
    Abstract: A SiC MOSFET device having low specific on resistance is described. The device has N+, P-well and JFET regions extended in one direction (Y-direction) and P+ and source contacts extended in an orthogonal direction (X-direction). The polysilicon gate of the device covers the JFET region and is terminated over the P-well region to minimize electric field at the polysilicon gate edge. In use, current flows vertically from the drain contact at the bottom of the structure into the JFET region and then laterally in the X direction through the accumulation region and through the MOSFET channels into the adjacent N+ region. The current flowing out of the channel then flows along the N+ region in the Y-direction and is collected by the source contacts and the final metal. Methods of making the device are also described.
    Type: Application
    Filed: October 25, 2017
    Publication date: February 15, 2018
    Inventors: Sujit BANERJEE, Kevin MATOCHA, Kiran CHATTY
  • Patent number: 9876104
    Abstract: A multi-cell MOSFET device including a MOSFET cell with an integrated Schottky diode is provided. The MOSFET includes n-type source regions formed in p-type well regions which are formed in an n-type drift layer. A p-type body contact region is formed on the periphery of the MOSFET. The source metallization of the device forms a Schottky contact with an n-type semiconductor region adjacent the p-type body contact region of the device. Vias can be formed through a dielectric material covering the source ohmic contacts and/or Schottky region of the device and the source metallization can be formed in the vias. The n-type semiconductor region forming the Schottky contact and/or the n-type source regions can be a single continuous region or a plurality of discontinuous regions alternating with discontinuous p-type body contact regions. The device can be a SiC device. Methods of making the device are also provided.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: January 23, 2018
    Assignee: Monolith Semiconductor Inc.
    Inventors: Kevin Matocha, Kiran Chatty, Sujit Banerjee
  • Patent number: 9853147
    Abstract: A SiC MOSFET device having low specific on resistance is described. The device has N+, P-well and JFET regions extended in one direction (Y-direction) and P+ and source contacts extended in an orthogonal direction (X-direction). The polysilicon gate of the device covers the JFET region and is terminated over the P-well region to minimize electric field at the polysilicon gate edge. In use, current flows vertically from the drain contact at the bottom of the structure into the JFET region and then laterally in the X direction through the accumulation region and through the MOSFET channels into the adjacent N+ region. The current flowing out of the channel then flows along the N+ region in the Y-direction and is collected by the source contacts and the final metal. Methods of making the device are also described.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: December 26, 2017
    Assignee: Monolith Semiconductor Inc.
    Inventors: Sujit Banerjee, Kevin Matocha, Kiran Chatty
  • Publication number: 20170266930
    Abstract: Engineered wood products and binder compositions are provided. In preferred embodiments, the engineered wood products include wax. Methods are also provided for formulating binders for wood comprising unmodified soy flour and synthetic adhesives. The soy-based formulations are prepared by mixing unmodified soy flour with the synthetic adhesive prior to application to the wood or by adding them sequentially to the wood. The present invention provides adequate bonding at reduced cost.
    Type: Application
    Filed: March 16, 2017
    Publication date: September 21, 2017
    Inventors: Brian Via, Sujit Banerjee