Patents by Inventor Imran Mahmood Khan

Imran Mahmood Khan 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: 20130341759
    Abstract: An integrated circuit with a high precision MIM capacitor and a high precision resistor with via etch stop landing pads on the resistor heads that are formed with the capacitor bottom plate material. A process of forming an integrated circuit with a high precision MIM capacitor and a high precision resistor where via etch stop landing pads over the resistor heads are formed using the same layer that is used to form the capacitor bottom plate.
    Type: Application
    Filed: June 14, 2013
    Publication date: December 26, 2013
    Applicant: Texas Instruments Incorporated
    Inventors: Imran Mahmood Khan, John Paul Campbell, Neal Thomas Murphy
  • Publication number: 20130334659
    Abstract: An integrated circuit with vias with different depths stopping on etch stop layers with different thicknesses. A method of simultaneously etching vias with different depths without causing etch damage to the material being contacted by the vias.
    Type: Application
    Filed: June 14, 2013
    Publication date: December 19, 2013
    Inventors: Kaiping LIU, Imran Mahmood KHAN, Richard Allen FAUST
  • Patent number: 8558296
    Abstract: An analog floating-gate electrode in an integrated circuit, and method of fabricating the same, in which trapped charge can be stored for long durations. The analog floating-gate electrode is formed in a polycrystalline silicon gate level, and includes portions serving as a transistor gate electrode, a plate of a metal-to-poly storage capacitor, and a plate of poly-to-active tunneling capacitors. Silicide-block silicon dioxide blocks the formation of silicide cladding on the electrode, while other polysilicon structures in the integrated circuit are silicide-clad.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: October 15, 2013
    Assignee: Texas Instruments Incorporated
    Inventors: Imran Mahmood Khan, Allan T. Mitchell, Kaiping Liu
  • Publication number: 20130221418
    Abstract: An analog floating-gate electrode in an integrated circuit, and method of fabricating the same, in which trapped charge can be stored for long durations. The analog floating-gate electrode is formed in a polycrystalline silicon gate level, doped n-type throughout its length, and includes portions serving as gate electrodes of n-channel and p-channel MOS transistors; a plate of a metal-to-poly storage capacitor; and a plate of poly-to-active tunneling capacitors. The p-channel MOS transistor includes a buried channel region, formed by way of ion implantation, disposed between its source and drain regions. Silicide-block silicon dioxide blocks the formation of silicide cladding on the electrode, while other polysilicon structures in the integrated circuit are silicide-clad.
    Type: Application
    Filed: February 28, 2012
    Publication date: August 29, 2013
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Allan T. Mitchell, Imran Mahmood Khan, Michael A. Wu
  • Publication number: 20120241829
    Abstract: An analog floating-gate electrode in an integrated circuit, and method of fabricating the same, in which trapped charge can be stored for long durations. The analog floating-gate electrode is formed in a polycrystalline silicon gate level, and includes portions serving as a transistor gate electrode, a plate of a metal-to-poly storage capacitor, and a plate of poly-to-active tunneling capacitors. Silicide-block silicon dioxide blocks the formation of silicide cladding on the electrode, while other polysilicon structures in the integrated circuit are silicide-clad.
    Type: Application
    Filed: March 23, 2011
    Publication date: September 27, 2012
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Imran Mahmood Khan, Allan T. Mitchell, Kaiping Liu
  • Publication number: 20120244671
    Abstract: An analog floating-gate electrode in an integrated circuit, and method of fabricating the same, in which trapped charge can be stored for long durations. The analog floating-gate electrode is formed in a polycrystalline silicon gate level, and includes n-type and p-type doped portions serving as gate electrodes of n-channel and p-channel MOS transistors, respectively; a plate of a metal-to-poly storage capacitor; and a plate of poly-to-active tunneling capacitors. Silicide-block silicon dioxide blocks the formation of silicide cladding on the electrode, while other polysilicon structures in the integrated circuit are silicide-clad. An opening at the surface of the analog floating-gate electrode, at the location at which n-type and p-type doped portions of the floating gate electrode abut, allow formation of silicide at that location, shorting the p-n junction.
    Type: Application
    Filed: January 26, 2012
    Publication date: September 27, 2012
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Allan T. Mitchell, Imran Mahmood Khan, Michael A. Wu
  • Patent number: 8178915
    Abstract: An analog floating-gate electrode in an integrated circuit, and method of fabricating the same, in which trapped charge can be stored for long durations. The analog floating-gate electrode is formed in a polycrystalline silicon gate level, and includes n-type and p-type doped portions serving as gate electrodes of n-channel and p-channel MOS transistors, respectively; a plate of a metal-to-poly storage capacitor; and a plate of poly-to-active tunneling capacitors. Silicide-block silicon dioxide blocks the formation of silicide cladding on the electrode, while other polysilicon structures in the integrated circuit are silicide-clad. An opening at the surface of the analog floating-gate electrode, at the location at which n-type and p-type doped portions of the floating gate electrode abut, allow formation of silicide at that location, shorting the p-n junction.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: May 15, 2012
    Assignee: Texas Instruments Incorporated
    Inventors: Allan T. Mitchell, Imran Mahmood Khan, Michael A. Wu