Patents by Inventor Sameer K. Ajmera

Sameer K. Ajmera 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: 20220013555
    Abstract: A photodetector structure includes a readout integrated circuit (ROIC) substrate and a dielectric layer overlaying the IC substrate. The dielectric layer defines a plurality of recesses formed in a top surface of the dielectric layer where each recess has at least one sidewall that extends from a top surface of the dielectric layer to a bottom portion of each respective recess. A capacitor structure forms a portion of the photodetector structure and includes a first electrode formed across the top surface of the dielectric layer and across the at least one sidewall of each recess of the plurality of recesses. A capacitor dielectric layer is formed across the first electrode and a second electrode is formed across the capacitor dielectric layer. A detector overlays the capacitor structure.
    Type: Application
    Filed: April 29, 2021
    Publication date: January 13, 2022
    Inventors: Eugene E. Krueger, Sameer K. Ajmera
  • Patent number: 8765514
    Abstract: A center region of conductive material/s may be disposed or “sandwiched” between transition regions of relatively lower conductivity materials to provide substantially low defect density interfaces for the sandwiched material. The center region and surrounding transition regions may in turn be disposed or sandwiched between dielectric insulative material to form a sandwiched and transitioned device structure. The center region of such a sandwiched structure may be implemented, for example, as a device layer such as conductive microbolometer layer for a microbolometer detector structure.
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: July 1, 2014
    Assignee: L-3 Communications Corp.
    Inventors: Athanasios J. Syllaios, Michael F. Taylor, Sameer K. Ajmera
  • Publication number: 20140159032
    Abstract: A center region of conductive material/s may be disposed or “sandwiched” between transition regions of relatively lower conductivity materials to provide substantially low defect density interfaces for the sandwiched material. The center region and surrounding transition regions may in turn be disposed or sandwiched between dielectric insulative material to form a sandwiched and transitioned device structure. The center region of such a sandwiched structure may be implemented, for example, as a device layer such as conductive microbolometer layer for a microbolometer detector structure.
    Type: Application
    Filed: November 12, 2010
    Publication date: June 12, 2014
    Inventors: Athanasios J. Syllaios, Michael F. Taylor, Sameer K. Ajmera
  • Patent number: 7732324
    Abstract: One aspect of the invention provides a method of forming a semiconductor device (100). One aspect includes forming transistors (120, 125) on a semiconductor substrate (105), forming a first interlevel dielectric layer (165) over the transistors (120, 125), and forming metal interconnects (170, 175) within the first interlevel dielectric layer (165). A carbon-containing gas is used to form a silicon carbon nitride (SiCN) layer (180) over the metal interconnects (170, 175) and the first interlevel dielectric layer (165) within a deposition tool. An adhesion layer (185) is formed on the SiCN layer (180), within the deposition tool, by discontinuing a flow of the carbon-containing gas within the deposition chamber. A second interlevel dielectric layer (190) is formed over the adhesion layer (185).
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: June 8, 2010
    Assignee: Texas Instruments Incorporated
    Inventors: Ju-Ai Ruan, Sameer K. Ajmera, Changming Jin, Anand J. Reddy, Tae S. Kim
  • Publication number: 20090160059
    Abstract: One aspect of the invention provides a method of forming a semiconductor device (100). One aspect includes forming transistors (120, 125) on a semiconductor substrate (105), forming a first interlevel dielectric layer (165) over the transistors (120, 125), and forming metal interconnects (170, 175) within the first interlevel dielectric layer (165). A carbon-containing gas is used to form a silicon carbon nitride (SiCN) layer (180) over the metal interconnects (170, 175) and the first interlevel dielectric layer (165) within a deposition tool. An adhesion layer (185) is formed on the SiCN layer (180), within the deposition tool, by discontinuing a flow of the carbon-containing gas within the deposition chamber. A second interlevel dielectric layer (190) is formed over the adhesion layer (185).
    Type: Application
    Filed: December 20, 2007
    Publication date: June 25, 2009
    Applicant: Texas Instruments Incorporated
    Inventors: Ju-Ai Ruan, Sameer K. Ajmera, Changming Jin, Anand J. Reddy, Tae S. Kim