Patents by Inventor Mark H. Somervell

Mark H. Somervell 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: 20090246718
    Abstract: A method of creating a graded anti-reflective coating (ARC) layer on a thin film is described. The method includes forming the thin film on a substrate, forming an ARC layer on the thin film, and applying a solvent to the ARC layer causing it to swell. A photo-resist layer is formed on the swollen ARC layer. A mixing layer is formed by the diffusion of components from the swollen ARC layer to the photo-resist layer and vice versa. The mixing layer has optical qualities that are distinct from those of either of the ARC layer or the photo-resist layer. The mixing layer forms the graded ARC layer.
    Type: Application
    Filed: March 31, 2008
    Publication date: October 1, 2009
    Applicant: TOKYO ELECTRON LIMITED
    Inventor: Mark H. Somervell
  • Publication number: 20090241995
    Abstract: In a method of removing a film residue from a wafer in a substrate processing system, a surface of the wafer is exposed to a processing liquid to thereby lift a first portion of the film residue off the surface of the wafer. In addition, a continuous or pulsed stream of pressurized gas is applied against the surface of the wafer to remove a second portion of the film residue from the wafer. The method may include rotating the wafer relative to the stream of pressurized gas. The stream of pressurized gas may be applied subsequent to exposing the surface of the wafer to the processing liquid and any residual processing liquid may be removed with the second portion of film residue by the stream of pressurized gas. Alternatively, the stream of pressurized gas may be applied concurrently with the processing liquid to remove the film residue and processing liquid in a single step.
    Type: Application
    Filed: March 31, 2008
    Publication date: October 1, 2009
    Applicant: TOKYO ELECTRON LIMITED
    Inventor: Mark H. Somervell
  • Patent number: 7595146
    Abstract: A method of creating a graded anti-reflective coating (ARC) layer on a thin film is described. The method includes forming the thin film on a substrate, forming an ARC layer on the thin film, and applying a solvent to the ARC layer causing it to swell. A photo-resist layer is formed on the swollen ARC layer. A mixing layer is formed by the diffusion of components from the swollen ARC layer to the photo-resist layer and vice versa. The mixing layer has optical qualities that are distinct from those of either of the ARC layer or the photo-resist layer. The mixing layer forms the graded ARC layer.
    Type: Grant
    Filed: March 31, 2008
    Date of Patent: September 29, 2009
    Assignee: Tokyo Electron Limited
    Inventor: Mark H. Somervell
  • Patent number: 7402524
    Abstract: The present invention provides a method for fabricating a dual gate semiconductor device. In one aspect, the method comprises forming a nitridated, high voltage gate dielectric layer over a semiconductor substrate, patterning a photoresist over the nitridated, high voltage gate dielectric layer to expose the nitridated, high voltage dielectric within a low voltage region, wherein the patterning leaves an accelerant residue on the exposed nitridated, high voltage gate dielectric layer, and subjecting the exposed nitridated, high voltage dielectric to a high vacuum to remove the accelerant residue.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: July 22, 2008
    Assignee: Texas Instruments Incorporated
    Inventors: Brian K. Kirkpatrick, Rajesh Khamankar, Malcolm J. Bevan, April Gurba, Husam N. Alshareef, Clinton L. Montgomery, Mark H. Somervell
  • Patent number: 7339240
    Abstract: The present invention provides a method for fabricating a dual gate semiconductor device. In one aspect, the method comprises forming a nitridated, high voltage gate dielectric layer over a semiconductor substrate, patterning a photoresist over the nitridated, high voltage gate dielectric layer to expose the nitridated, high voltage dielectric within a low voltage region wherein the patterning leaves an accelerant residue on the exposed nitridated, high voltage gate dielectric layer. The method further includes subjecting the exposed nitridated, high voltage dielectric to a plasma to remove the accelerant residue.
    Type: Grant
    Filed: January 31, 2006
    Date of Patent: March 4, 2008
    Assignee: Texas Instruments Incorporated
    Inventors: Brian K. Kirkpatrick, Rajesh Khamankar, Malcolm J. Bevan, April Gurba, Husam N. Alshareef, Clinton L. Montgomery, Mark H. Somervell
  • Publication number: 20070290347
    Abstract: The invention provides a semiconductive device that comprises interlevel dielectric layers that are located over devices. The interlevel dielectric layers have a dielectric constant (k) less than about 4.0. Interconnects are formed within or over the interlevel dielectric layers. The semiconductive device further comprises an aluminum oxide barrier located between at least one pair of the interlevel dielectric layers. The aluminum oxide barrier is substantially laterally co-extensive with the interlevel dielectric layers.
    Type: Application
    Filed: June 19, 2006
    Publication date: December 20, 2007
    Applicant: Texas Instruments Incorporated
    Inventors: William W. Dostalik, Laura M. Matz, Robert Kraft, Mark H. Somervell
  • Patent number: 7049242
    Abstract: The present invention provides a method for fabricating a dual gate semiconductor device. In one aspect, the method comprises forming a nitridated, high voltage gate dielectric layer over a semiconductor substrate, patterning a photoresist over the nitridated, high voltage gate dielectric layer to expose the nitridated, high voltage dielectric within a low voltage region wherein the patterning leaves an accelerant residue on the exposed nitridated, high voltage gate dielectric layer. The method further includes subjecting the exposed nitridated, high voltage dielectric to a plasma to remove the accelerant residue.
    Type: Grant
    Filed: January 6, 2004
    Date of Patent: May 23, 2006
    Assignee: Texas Instruments Incorporated
    Inventors: Brian K. Kirkpatrick, Rajesh Khamankar, Malcolm J. Bevan, April Gurba, Husam N. Alshareef, Clinton L. Montgomery, Mark H. Somervell
  • Patent number: 7018925
    Abstract: The present invention provides a method for fabricating a dual gate semiconductor device. In one aspect, the method comprises forming a nitridated, high voltage gate dielectric layer over a semiconductor substrate, patterning a photoresist over the nitridated, high voltage gate dielectric layer to expose the nitridated, high voltage dielectric within a low voltage region, wherein the patterning leaves an accelerant residue on the exposed nitridated, high voltage gate dielectric layer, and subjecting the exposed nitridated, high voltage dielectric to a high vacuum to remove the accelerant residue.
    Type: Grant
    Filed: January 6, 2004
    Date of Patent: March 28, 2006
    Assignee: Texas Instruments Incorporated
    Inventors: Brian K. Kirkpatrick, Rajesh Khamankar, Malcolm J. Bevan, April Gurba, Husam N. Alshareef, Clinton L. Montgomery, Mark H. Somervell
  • Publication number: 20040266113
    Abstract: The present invention provides a method for fabricating a dual gate semiconductor device. In one aspect, the method comprises forming a nitridated, high voltage gate dielectric layer over a semiconductor substrate, patterning a photoresist over the nitridated, high voltage gate dielectric layer to expose the nitridated, high voltage dielectric within a low voltage region, wherein the patterning leaves an accelerant residue on the exposed nitridated, high voltage gate dielectric layer, and subjecting the exposed nitridated, high voltage dielectric to a high vacuum to remove the accelerant residue.
    Type: Application
    Filed: January 6, 2004
    Publication date: December 30, 2004
    Applicant: Texas Instruments Incorporated
    Inventors: Brian K. Kirkpatrick, Rajesh Khamankar, Malcolm J. Bevan, April Gurba, Husam N. Alshareef, Clinton L. Montgomery, Mark H. Somervell
  • Publication number: 20040142570
    Abstract: The present invention provides a method for fabricating a dual gate semiconductor device. In one aspect, the method comprises forming a nitridated, high voltage gate dielectric layer over a semiconductor substrate, patterning a photoresist over the nitridated, high voltage gate dielectric layer to expose the nitridated, high voltage dielectric within a low voltage region wherein the patterning leaves an accelerant residue on the exposed nitridated, high voltage gate dielectric layer. The method further includes subjecting the exposed nitridated, high voltage dielectric to a plasma to remove the accelerant residue.
    Type: Application
    Filed: January 6, 2004
    Publication date: July 22, 2004
    Applicant: Texas Instruments Incorporated
    Inventors: Brian K. Kirkpatrick, Rajesh Khamankar, Malcolm J. Bevan, April Gurba, Husam N. Alshareef, Clinton L. Montgomery, Mark H. Somervell