Patents by Inventor Tab A. Stephens

Tab A. Stephens 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: 20140363153
    Abstract: An integrated circuit optical die test interface and associated testing method are described for using scribe area optical mirror structures (106) to perform wafer die tests on MEMS optical beam waveguide (112) and optical circuit elements (113) by perpendicularly deflecting optical test signals (122) from the scribe area optical mirror structures (106) into and out of the plane of the integrated circuit die under test (104) and/or production test die (157).
    Type: Application
    Filed: June 10, 2013
    Publication date: December 11, 2014
    Inventors: Michael B. McShane, Perry H. Pelley, Tab A. Stephens
  • Publication number: 20140363120
    Abstract: An integrated circuit optical backplane die and associated semiconductor fabrication process are described for forming optical backplane mirror structures for perpendicularly deflecting optical signals out of the plane of the optical backplane die by selectively etching an optical waveguide semiconductor layer (103) on an optical backplane die wafer using an orientation-dependent anisotropic wet etch process to form a first recess opening (107) with angled semiconductor sidewall surfaces (106) on the optical waveguide semiconductor layer, where the angled semiconductor sidewall surfaces (106) are processed to form an optical backplane mirror (116) for perpendicularly deflecting optical signals to and from a lateral plane of the optical waveguide semiconductor layer.
    Type: Application
    Filed: June 10, 2013
    Publication date: December 11, 2014
    Inventors: Tab A. Stephens, Perry H. Pelley, Michael B. McShane
  • Publication number: 20140363124
    Abstract: A high density, low power, high performance information system, method and apparatus are described in which an integrated circuit apparatus includes a first integrated circuit link element (657) and a redundant integrated circuit link element (660) connected in parallel between first and second deflectable MEMS switches (652-655, 662-665) which are connected in a signal path and controlled to deselect the first integrated circuit link element (657) and connect the redundant integrated circuit link element (660) in the signal path in response to a two-state control signal provided to the first and second deflectable MEMs switches which identifies the first integrated circuit link element as being defective.
    Type: Application
    Filed: June 10, 2013
    Publication date: December 11, 2014
    Inventors: Perry H. Pelley, Tab A. Stephens, Michael B. McShane
  • Publication number: 20140363905
    Abstract: An optical die probe wafer testing circuit arrangement and associated testing methodology are described for mounting a production test die (157) and surrounding scribe grid (156) to a test head (155) which is positioned over a wafer (160) in alignment with a die under test (163) and surrounding scribe grid (161, 165), such that one or more optical deflection mirrors (152, 154) in the test head scribe grid (156) are aligned with one or more optical deflection mirrors (162, 164) in the scribe grid (161, 165) for the die under test (163) to enable optical die probe testing on the die under test (163) by directing a first optical test signal (158) from the production test die (157), through the first and second optical deflection mirrors (e.g., 152, 162) and to the first die.
    Type: Application
    Filed: June 10, 2013
    Publication date: December 11, 2014
    Inventors: Michael B. McShane, Perry H. Pelley, Tab A. Stephens
  • Publication number: 20140252487
    Abstract: An anti-counterfeiting security circuit is incorporated into an authentic integrated circuit device to induce failure in a counterfeited integrated circuit device by forming the security circuit (e.g., 21, 31, 41, 51) with one or more operatively inert high-k metal gate transistors (e.g., HKMG PMOS 112) having switched or altered work function metal layers (82) where the security circuit defines a first electrical function with the one or more operatively inert high-k metal gate transistors and defines a second different electrical function if the one or more operatively inert high-k metal gate transistors were instead fabricated as operatively functional high-k metal gate transistors of the first polarity type with a work function metal layer of the first polarity type, the security circuit would define a second different electrical function.
    Type: Application
    Filed: March 8, 2013
    Publication date: September 11, 2014
    Applicant: FREESCALE SEMICONDUCTOR, INC.
    Inventors: Tab A. Stephens, Perry H. Pelley, Michael B. McShane, Paul A. Grudowski
  • Patent number: 8796855
    Abstract: An electric device with vias that include dielectric structures to prevent conductive material in the vias from electrically connecting conductive structures on a top of the vias with conductive structures on the bottom of the vias. The dielectric structures are formed in selected vias where other vias do not include the dielectric structures.
    Type: Grant
    Filed: January 13, 2012
    Date of Patent: August 5, 2014
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Perry H. Pelley, Michael B. McShane, Tab A. Stephens
  • Publication number: 20140197541
    Abstract: A microelectronic assembly (100) and a microelectronic device (4100) include a stacked structure (101). The stacked structure includes a heat spreader (104), at least one die (106) thermally coupled to at least a portion of one side of the heat spreader, at least one other die (108) thermal coupled to at least a portion of an opposite side of the heat spreader, at least one opening (401) in the heat spreader located in a region of between the two die, an insulator (603) disposed in the at least one opening, and electrically conductive material (1308, 1406) in an insulated hole (705) in the insulator. The heat spreader allows electrical communication between the two die through the opening while the insulator isolates the electrically conductive material and the heat spreader from each other.
    Type: Application
    Filed: January 15, 2013
    Publication date: July 17, 2014
    Applicant: Freescale Semiconductor, Inc.
    Inventors: Tab A. STEPHENS, Michael B. McSHANE, Perry H. PELLEY
  • Patent number: 8680674
    Abstract: A semiconductor device comprises an integrated circuit (IC) die having a top side and a back side. The circuit substrate includes a heat source circuit, a heat sensitive circuit, a package substrate coupled to the top side of the circuit substrate, and a plurality of thermally conductive through-silicon vias (TSVs) formed from the back side of the circuit substrate to near but not through the top side of the circuit substrate.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: March 25, 2014
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Michael B. McShane, Kevin J. Hess, Perry H. Pelley, Tab A. Stephens
  • Publication number: 20140071652
    Abstract: An electronic assembly includes a processor die assembly, a first die assembly, and a second die assembly. The first die assembly is positioned on a first side of the processor die assembly. The second die assembly is positioned on a second side of the processor die assembly opposite the first side of the processor die assembly. Through-die vias couple the first and second die assemblies to the processor die assembly.
    Type: Application
    Filed: September 12, 2012
    Publication date: March 13, 2014
    Applicant: FREESCALE SEMICONDUCTOR, INC.
    Inventors: MICHAEL B. MCSHANE, KEVIN J. HESS, PERRY H. PELLEY, TAB A. STEPHENS
  • Publication number: 20140001641
    Abstract: A semiconductor device comprising a substrate, a power bus, a heat source circuit, a heat sensitive circuit, and a plurality of electrically and thermally conductive through-silicon-vias (TSVs) in the substrate. The TSVs are electrically coupled to the power bus and positioned between the heat source circuit and the heat sensitive circuit to absorb heat from the heat source circuit.
    Type: Application
    Filed: June 27, 2012
    Publication date: January 2, 2014
    Inventors: MICHAEL B. MCSHANE, Kevin J. Hess, Perry H. Pelley, Tab A. Stephens
  • Publication number: 20130320480
    Abstract: A semiconductor device comprises an integrated circuit (IC) die having a top side and a back side. The circuit substrate includes a heat source circuit, a heat sensitive circuit, a package substrate coupled to the top side of the circuit substrate, and a plurality of thermally conductive through-silicon vias (TSVs) formed from the back side of the circuit substrate to near but not through the top side of the circuit substrate.
    Type: Application
    Filed: May 31, 2012
    Publication date: December 5, 2013
    Inventors: Michael B. Mcshane, Kevin J. Hess, Perry H. Pelley, Tab A. Stephens
  • Publication number: 20130181350
    Abstract: An electric device with vias that include dielectric structures to prevent conductive material in the vias from electrically connecting conductive structures on a top of the vias with conductive structures on the bottom of the vias. The dielectric structures are formed in selected vias where other vias do not include the dielectric structures.
    Type: Application
    Filed: January 13, 2012
    Publication date: July 18, 2013
    Inventors: Perry H. PELLEY, Michael B. MCSHANE, Tab A. STEPHENS
  • Patent number: 8258035
    Abstract: A method for making a transistor is provided which comprises (a) providing a semiconductor structure having a gate (211) overlying a semiconductor layer (203), and having at least one spacer structure (213) disposed adjacent to said gate; (b) removing a portion of the semiconductor structure adjacent to the spacer structure, thereby exposing a portion (215) of the semiconductor structure which underlies the spacer structure; and (c) subjecting the exposed portion of the semiconductor structure to an angled implant (253, 254).
    Type: Grant
    Filed: May 4, 2007
    Date of Patent: September 4, 2012
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Leo Mathew, John J. Hackenberg, David C. Sing, Tab A. Stephens, Daniel G. Tekleab, Vishal P. Trivedi
  • Patent number: 7911002
    Abstract: A semiconductor device is provided which comprises a semiconductor layer (109), a dielectric layer (111), first and second gate electrodes (129, 131) having first and second respective work functions associated therewith, and a layer of hafnium oxide (113) disposed between said dielectric layer and said first and second gate electrodes.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: March 22, 2011
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Voon-Yew Thean, Marc Rossow, Gregory S. Spencer, Tab A. Stephens, Dina H. Triyoso, Victor H. Vartanian
  • Patent number: 7910482
    Abstract: A method for processing a substrate comprising at least a buried oxide (BOX) layer and a semiconductor material layer is provided. The method includes etching the semiconductor material layer to form a vertical semiconductor material structure overlying the BOX layer, leaving an exposed portion of the BOX layer. The method further includes exposing a top surface of the exposed portion of the BOX layer to an oxide etch resistant species to form a thin oxide etch resistant layer overlying the exposed portion of the BOX layer.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: March 22, 2011
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Tab A. Stephens, Leo Mathew, Lakshmanna Vishnubholta, Bruce E. White
  • Patent number: 7829447
    Abstract: Forming structures such as fins in a semiconductor layer according to a pattern formed by oxidizing a sidewall of a layer of oxidizable material. In one embodiment, source/drain pattern structures and a fin pattern structures are patterned in the oxidizable layer. The fin pattern structure is then masked from an oxidation process that grows oxide on the sidewalls of the channel pattern structure and the top surface of the source/drain pattern structures. The remaining oxidizable material of the channel pattern structure is subsequently removed leaving a hole between two portions of the oxide layer. These two portions are used in one embodiment as a mask for patterning the semiconductor layer to form two fins. This patterning also leaves the source/drain structures connected to the fins.
    Type: Grant
    Filed: May 19, 2006
    Date of Patent: November 9, 2010
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Leo Mathew, Rode R. Mora, Tab A. Stephens, Tien Ying Luo
  • Publication number: 20100230756
    Abstract: A semiconductor device is provided which comprises a semiconductor layer (109), a dielectric layer (111), first and second gate electrodes (129, 131) having first and second respective work functions associated therewith, and a layer of hafnium oxide (113) disposed between said dielectric layer and said first and second gate electrodes.
    Type: Application
    Filed: December 18, 2009
    Publication date: September 16, 2010
    Inventors: Voon-Yew Thean, Marc Rossow, Gregory S. Spencer, Tab A. Stephens, Dina H. Triyoso, Victor H. Vartanian
  • Patent number: 7745298
    Abstract: A method for forming a via includes forming a gate electrode over a semiconductor substrate, forming a source/drain region in the semiconductor substrate adjacent the gate electrode, forming a silicide region in the source/drain region, forming a post-silicide spacer adjacent the gate electrode after forming the silicide region, forming an interlayer dielectric layer over the gate electrode, the post-silicide spacer, and the silicide region, and forming a conductive via in the interlayer dielectric layer, extending to the silicide region.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: June 29, 2010
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Tab A. Stephens, Olubunmi O. Adetutu, Paul A. Grudowski, Matthew T. Herrick
  • Patent number: 7659156
    Abstract: A semiconductor device is provided which comprises a semiconductor layer (109), a dielectric layer (111), first and second gate electrodes (129, 131) having first and second respective work functions associated therewith, and a layer of hafnium oxide (113) disposed between said dielectric layer and said first and second gate electrodes.
    Type: Grant
    Filed: April 18, 2007
    Date of Patent: February 9, 2010
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Voon-Yew Thean, Marc Rossow, Gregory S. Spencer, Tab A. Stephens, Dina H. Triyoso, Victor H. Vartanian
  • Publication number: 20090294919
    Abstract: A method for processing a substrate comprising at least a buried oxide (BOX) layer and a semiconductor material layer is provided. The method includes etching the semiconductor material layer to form a vertical semiconductor material structure overlying the BOX layer, leaving an exposed portion of the BOX layer. The method further includes exposing a top surface of the exposed portion of the BOX layer to an oxide etch resistant species to form a thin oxide etch resistant layer overlying the exposed portion of the BOX layer.
    Type: Application
    Filed: May 30, 2008
    Publication date: December 3, 2009
    Inventors: Tab A. Stephens, Leo Mathew, Lakshmanna Vishnubholta, Bruce E. White