Patents by Inventor David Rothenbury

David Rothenbury 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: 8093688
    Abstract: Device comprising an ohmic via contact, and method of fabricating thereof. A preferred embodiment comprises forming a metal layer over a substrate, forming a conductive barrier layer over the metal layer, depositing an insulating layer over the conductive barrier layer, creating an opening in the insulating layer to expose the conductive barrier layer, and forming a via contact in the opening. The conductive barrier layer protects the metal layer by preventing the formation of an oxide layer, which could reduce conductivity.
    Type: Grant
    Filed: October 8, 2009
    Date of Patent: January 10, 2012
    Assignee: Texas Instruments Incorporated
    Inventors: David A. Rothenbury, James D. Huffman
  • Patent number: 7997744
    Abstract: A deformable hinge for use in microelectromechanical devices comprises a protection layer that is electrically conductive. The protection layer is on top of another hinge layer; and is more resistive than the hinge layer to the etchant used in during patterning and/or release processes during fabrication of the microelectromechanical device. As a result, the hinge layer can be protected from being damaged during the fabrication process.
    Type: Grant
    Filed: March 12, 2008
    Date of Patent: August 16, 2011
    Assignee: Texas Instruments Incorporated
    Inventor: David Rothenbury
  • Patent number: 7924489
    Abstract: Methods and apparatus for use with a micromirror element includes a micromirror a micromirror having a substantially flat outer surface disposed outwardly from a support structure that is operable to at least partially support the micromirror. The support structure includes at least one layer overlying at least two discrete planes that are both substantially parallel to the outer surface of the micromirror. In one particular embodiment, the support structure includes annular-shaped sidewalls that encapsulate a photoresist plug.
    Type: Grant
    Filed: April 6, 2009
    Date of Patent: April 12, 2011
    Assignee: Texas Instruments Incorporated
    Inventor: David A. Rothenbury
  • Patent number: 7871931
    Abstract: The present invention provides a method for planarizing a metal layer, and a method for manufacturing a micro pixel array. The method for planarizing the metal layer, without limitation, may include the steps of forming a metal layer over a photoresist layer, and then planarizing the metal layer using a chemical mechanical planarization process.
    Type: Grant
    Filed: September 20, 2005
    Date of Patent: January 18, 2011
    Assignee: Texas Instruments Incorporated
    Inventors: Anthony DiCarlo, Jingqiu Chen, Yanghua He, James C. Baker, David A. Rothenbury
  • Publication number: 20100025797
    Abstract: Device comprising an ohmic via contact, and method of fabricating thereof. A preferred embodiment comprises forming a metal layer over a substrate, forming a conductive barrier layer over the metal layer, depositing an insulating layer over the conductive barrier layer, creating an opening in the insulating layer to expose the conductive barrier layer, and forming a via contact in the opening. The conductive barrier layer protects the metal layer by preventing the formation of an oxide layer, which could reduce conductivity.
    Type: Application
    Filed: October 8, 2009
    Publication date: February 4, 2010
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventors: David A. Rothenbury, James D. Huffman
  • Patent number: 7601624
    Abstract: Device comprising an ohmic via contact, and method of fabricating thereof. A preferred embodiment comprises forming a metal layer over a substrate, forming a conductive barrier layer over the metal layer, depositing an insulating layer over the conductive barrier layer, creating an opening in the insulating layer to expose the conductive barrier layer, and forming a via contact in the opening. The conductive barrier layer protects the metal layer by preventing the formation of an oxide layer, which could reduce conductivity.
    Type: Grant
    Filed: September 13, 2006
    Date of Patent: October 13, 2009
    Assignee: Texas Instruments Incorporated
    Inventors: David A. Rothenbury, James D. Huffman
  • Publication number: 20090231672
    Abstract: A deformable hinge for use in microelectromechanical devices comprises a protection layer that is electrically conductive. The protection layer is on top of another hinge layer; and is more resistive than the hinge layer to the etchant used in during patterning and/or release processes during fabrication of the microelectromechanical device. As a result, the hinge layer can be protected from being damaged during the fabrication process.
    Type: Application
    Filed: March 12, 2008
    Publication date: September 17, 2009
    Applicant: Texas Instruments Incorporated
    Inventor: David Rothenbury
  • Publication number: 20090188786
    Abstract: Methods and apparatus for use with a micromirror element includes a micromirror a micromirror having a substantially flat outer surface disposed outwardly from a support structure that is operable to at least partially support the micromirror. The support structure includes at least one layer overlying at least two discrete planes that are both substantially parallel to the outer surface of the micromirror. In one particular embodiment, the support structure includes annular-shaped sidewalls that encapsulate a photoresist plug.
    Type: Application
    Filed: April 6, 2009
    Publication date: July 30, 2009
    Applicant: Texas Instruments Incorporated
    Inventor: David A. Rothenbury
  • Patent number: 7529015
    Abstract: Methods and apparatus for use with a micromirror element includes a micromirror a micromirror having a substantially flat outer surface disposed outwardly from a support structure that is operable to at least partially support the micromirror. The support structure includes at least one layer overlying at least two discrete planes that are both substantially parallel to the outer surface of the micromirror. In one particular embodiment, the support structure includes annular-shaped sidewalls that encapsulate a photoresist plug.
    Type: Grant
    Filed: June 29, 2006
    Date of Patent: May 5, 2009
    Assignee: Texas Instruments Incorporated
    Inventor: David A. Rothenbury
  • Patent number: 7404909
    Abstract: The invention provides a method for manufacturing a microelectronic device and a microelectronic device. The method for manufacturing the microelectronic device, without limitation, may include forming a first mirror layer over and within one or more openings in a sacrificial spacer layer, and forming a dielectric layer over an upper surface of the first mirror layer and within the one or more openings. The method may further include subjecting the dielectric layer to an etch, the etch removing the dielectric layer from the upper surface and leaving dielectric portions along sidewalls of the one or more openings, and forming a second mirror layer over the first mirror layer and within the one or more openings, the dielectric portions separating the first mirror layer and the second mirror layer along the sidewalls.
    Type: Grant
    Filed: December 6, 2006
    Date of Patent: July 29, 2008
    Assignee: Texas Instruments Incorporated
    Inventor: David A. Rothenbury
  • Publication number: 20080160749
    Abstract: A semiconductor device and method of forming thereof. An embodiment comprises forming a spacer layer on a substrate, forming a via having walls and a bottom in the spacer layer, depositing a conformal first conductive layer on the spacer layer and on the walls and the bottom of the via, forming a nucleating layer over the conformal first conductive layer, forming a conformal second conductive layer over the nucleating layer, and removing the spacer layer. The nucleating layer helps in the formation of the conformal second conductive layer, thereby creating a more uniform coating of the conformal first conductive layer with better step coverage.
    Type: Application
    Filed: December 27, 2006
    Publication date: July 3, 2008
    Inventor: David A. Rothenbury
  • Publication number: 20080137170
    Abstract: The invention provides a method for manufacturing a microelectronic device and a microelectronic device. The method for manufacturing the microelectronic device, without limitation, may include forming a first mirror layer over and within one or more openings in a sacrificial spacer layer, and forming a dielectric layer over an upper surface of the first mirror layer and within the one or more openings. The method may further include subjecting the dielectric layer to an etch, the etch removing the dielectric layer from the upper surface and leaving dielectric portions along sidewalls of the one or more openings, and forming a second mirror layer over the first mirror layer and within the one or more openings, the dielectric portions separating the first mirror layer and the second mirror layer along the sidewalls.
    Type: Application
    Filed: December 6, 2006
    Publication date: June 12, 2008
    Applicant: Texas Instruments, Incorporated
    Inventor: David A. Rothenbury
  • Publication number: 20080064224
    Abstract: Device comprising an ohmic via contact, and method of fabricating thereof. A preferred embodiment comprises forming a metal layer over a substrate, forming a conductive barrier layer over the metal layer, depositing an insulating layer over the conductive barrier layer, creating an opening in the insulating layer to expose the conductive barrier layer, and forming a via contact in the opening. The conductive barrier layer protects the metal layer by preventing the formation of an oxide layer, which could reduce conductivity.
    Type: Application
    Filed: September 13, 2006
    Publication date: March 13, 2008
    Inventors: David A. Rothenbury, James D. Huffman
  • Publication number: 20080002248
    Abstract: Methods and apparatus for use with a micromirror element includes a micromirror a micromirror having a substantially flat outer surface disposed outwardly from a support structure that is operable to at least partially support the micromirror. The support structure includes at least one layer overlying at least two discrete planes that are both substantially parallel to the outer surface of the micromirror. In one particular embodiment, the support structure includes annular-shaped sidewalls that encapsulate a photoresist plug.
    Type: Application
    Filed: June 29, 2006
    Publication date: January 3, 2008
    Inventor: David A. Rothenbury
  • Publication number: 20070066063
    Abstract: The present invention provides a method for planarizing a metal layer, and a method for manufacturing a micro pixel array. The method for planarizing the metal layer, without limitation, may include the steps of forming a metal layer over a photoresist layer, and then planarizing the metal layer using a chemical mechanical planarization process.
    Type: Application
    Filed: September 20, 2005
    Publication date: March 22, 2007
    Applicant: Texas Instruments Inc.
    Inventors: Anthony DiCarlo, Jingqiu Chen, Yanghua He, James Baker, David Rothenbury
  • Publication number: 20070007122
    Abstract: In one embodiment, a method for forming a metal layer in a via of a semiconductor device includes providing a substrate, the substrate having a plurality of vias formed therein, forming a first portion of a metal layer outwardly from the substrate using a long throw sputtering process, and forming a second portion of the metal layer outwardly form the first portion of the metal layer using a short throw sputtering process. The first and second portions of the metal layer equal a total thickness of the metal layer.
    Type: Application
    Filed: July 5, 2005
    Publication date: January 11, 2007
    Inventor: David Rothenbury