Patents by Inventor Jed Rankin

Jed Rankin 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: 10468149
    Abstract: Extreme ultraviolet mirrors and masks used in lithography and methods for manufacturing an extreme ultraviolet mirror or mask. Initial data is obtained that includes materials and optical properties for a first intermixed layer, a second intermixed layer, a first pure layer, and a second pure layer in each of a plurality of periods of a multi-layer stack for an optical element. For multiple thicknesses for the first pure layer and multiple thicknesses for the second pure layer, a reflectivity of the multi-layer stack is determined based on the initial data, a thickness received for the first intermixed layer, and a thickness received for the second intermixed layer. One of the thicknesses for the first pure layer and one of the thicknesses for the second pure layer are selected that maximize the reflectivity of the multi-layer stack.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: November 5, 2019
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Yulu Chen, Francis Goodwin, Jed Rankin, Lei Sun, Obert Reeves Wood, II
  • Publication number: 20180226166
    Abstract: Extreme ultraviolet mirrors and masks used in lithography and methods for manufacturing an extreme ultraviolet mirror or mask. Initial data is obtained that includes materials and optical properties for a first intermixed layer, a second intermixed layer, a first pure layer, and a second pure layer in each of a plurality of periods of a multi-layer stack for an optical element. For multiple thicknesses for the first pure layer and multiple thicknesses for the second pure layer, a reflectivity of the multi-layer stack is determined based on the initial data, a thickness received for the first intermixed layer, and a thickness received for the second intermixed layer. One of the thicknesses for the first pure layer and one of the thicknesses for the second pure layer are selected that maximize the reflectivity of the multi-layer stack.
    Type: Application
    Filed: February 3, 2017
    Publication date: August 9, 2018
    Inventors: Yulu Chen, Francis Goodwin, Jed Rankin, Lei Sun, Obert Reeves Wood, II
  • Publication number: 20120096022
    Abstract: A document reminder system comprising a data base for storing a predetermined word or sequence of words; a system for scanning displayed content text for said predetermined word or sequence of words and a non text document identified by said word or sequence of words; a module for comparing said displayed content text as it is scanned for a match with said stored predetermined word or sequence of words; a module coupled to a data base of non text content to search for said identified non text document; and a generating module for selectively generating an indicator in the event the non text content is located.
    Type: Application
    Filed: October 19, 2010
    Publication date: April 19, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Brent Anderson, Jed Rankin
  • Patent number: 7645650
    Abstract: A method for forming a transistor. A semiconductor substrate is provided. The semiconductor substrate is patterned to provide a first body edge. A first gate structure of a first fermi level is provided adjacent the first body edge. The semiconductor substrate is patterned to provide a second body edge. The first and second body edges of the semiconductor substrate define a transistor body. A second gate structure of a second fermi level is provided adjacent the second body edge. A substantially uniform dopant concentration density is formed throughout the transistor body.
    Type: Grant
    Filed: July 9, 2007
    Date of Patent: January 12, 2010
    Assignee: International Business Machines Corporation
    Inventors: Andres Bryant, Meikei Ieong, K. Paul Muller, Edward J. Nowak, David M. Fried, Jed Rankin
  • Publication number: 20070292996
    Abstract: Disclosed is an integrated circuit with multiple semiconductor fins having different widths and variable spacing on the same substrate. The method of forming the circuit incorporates a sidewall image transfer process using different types of mandrels. Fin thickness and fin-to-fin spacing are controlled by an oxidation process used to form oxide sidewalls on the mandrels, and more particularly, by the processing time and the use of intrinsic, oxidation-enhancing and/or oxidation-inhibiting mandrels. Fin thickness is also controlled by using sidewalls spacers combined with or instead of the oxide sidewalls. Specifically, images of the oxide sidewalls alone, images of sidewall spacers alone, and/or combined images of sidewall spacers and oxide sidewalls are transferred into a semiconductor layer to form the fins. The fins with different thicknesses and variable spacing can be used to form a single multiple-fin FET or, alternatively, various single-fin and/or multiple-fin FETs.
    Type: Application
    Filed: August 29, 2007
    Publication date: December 20, 2007
    Inventors: Wagdi Abadeer, Jeffrey Brown, Kiran Chatty, Robert Gauthler, Jed Rankin, William Tonti
  • Publication number: 20070284669
    Abstract: Disclosed is an integrated circuit with multiple semiconductor fins having different widths and variable spacing on the same substrate. The method of forming the circuit incorporates a sidewall image transfer process using different types of mandrels. Fin thickness and fin-to-fin spacing are controlled by an oxidation process used to form oxide sidewalls on the mandrels, and more particularly, by the processing time and the use of intrinsic, oxidation-enhancing and/or oxidation-inhibiting mandrels. Fin thickness is also controlled by using sidewalls spacers combined with or instead of the oxide sidewalls. Specifically, images of the oxide sidewalls alone, images of sidewall spacers alone, and/or combined images of sidewall spacers and oxide sidewalls are transferred into a semiconductor layer to form the fins. The fins with different thicknesses and variable spacing can be used to form a single multiple-fin FET or, alternatively, various single-fin and/or multiple-fin FETs.
    Type: Application
    Filed: August 15, 2007
    Publication date: December 13, 2007
    Inventors: Wagdi Abadeer, Jeffrey Brown, Kiran Chatty, Robert Gauthier, Jed Rankin, William Tonti
  • Publication number: 20070284659
    Abstract: A method and structure is disclosed for a transistor having a gate, a channel region below the gate, a source region on one side of the channel region, a drain region on an opposite side of the channel region from the source region, a shallow trench isolation (STI) region in the substrate between the drain region and the channel region, and a drain extension below the STI region. The drain extension is positioned along a bottom of the STI region and along a portion of sides of the STI. Portions of the drain extension along the bottom of the STI may comprise different dopant implants than the portions of the drain extensions along the sides of the STI. Portions of the drain extensions along sides of the STI extend from the bottom of the STI to a position partially up the sides of the STI. The STI region is below a portion of the gate. The drain extension provides a conductive path between the drain region and the channel region around a lower perimeter of the STI.
    Type: Application
    Filed: August 24, 2007
    Publication date: December 13, 2007
    Inventors: Wagdi Abadeer, Jeffrey Brown, Robert Gauthier, Jed Rankin, William Tonti
  • Publication number: 20070264729
    Abstract: A method of reducing parametric variation in an integrated circuit (IC) chip and an IC chip with reduced parametric variation. The method includes: on a first wafer having a first arrangement of chips, each IC chip divided into a second arrangement of regions, measuring a test device parameter of test devices distributed in different regions; and on a second wafer having the first arrangement of IC chips and the second arrangement of regions, adjusting a functional device parameter of identically designed field effect transistors within one or more regions of all IC chips of the second wafer based on a values of the test device parameter measured on test devices in regions of the IC chip of the first wafer by a non-uniform adjustment of physical or metallurgical polysilicon gate widths of the identically designed field effect transistors from region to region within each IC chip.
    Type: Application
    Filed: May 10, 2006
    Publication date: November 15, 2007
    Inventors: Brent Anderson, Shahid Butt, Allen Gabor, Patrick Lindo, Edward Nowak, Jed Rankin
  • Publication number: 20070254438
    Abstract: A method for forming a transistor. A semiconductor substrate is provided. The semiconductor substrate is patterned to provide a first body edge. A first gate structure of a first fermi level is provided adjacent the first body edge. The semiconductor substrate is patterned to provide a second body edge. The first and second body edges of the semiconductor substrate define a transistor body. A second gate structure of a second fermi level is provided adjacent the second body edge. A substantially uniform dopant concentration density is formed throughout the transistor body.
    Type: Application
    Filed: July 9, 2007
    Publication date: November 1, 2007
    Inventors: Andres Bryant, Meikei Ieong, K. Muller, Edward Nowak, David Fried, Jed Rankin
  • Patent number: 7288445
    Abstract: Accordingly, the present invention provides a double gated transistor and a method for forming the same that results in improved device performance and density. The preferred embodiment of the present invention uses provides a double gated transistor with asymmetric gate doping, where one of the double gates is doped degenerately n-type and the other degenerately p-type. By doping on of the gates n-type, and the other p-type, the threshold voltage of the resulting device is improved. In particular, by asymmetrically doping the two gates, the resulting transistor can, with adequate doping of the body, have a threshold voltage in a range that enables low-voltage CMOS operation. For example, a transistor can be created that has a threshold voltage between 0V and 0.5V for nFETs and between 0 and ?0.5V for pFETs.
    Type: Grant
    Filed: May 9, 2005
    Date of Patent: October 30, 2007
    Assignee: International Business Machines Corporation
    Inventors: Andres Bryant, Meikei Ieong, K. Paul Muller, Edward J. Nowak, David M. Fried, Jed Rankin
  • Publication number: 20070224743
    Abstract: A fin-type field effect transistor has an insulator layer above a substrate and a fin extending above the insulator layer. The fin has a channel region, and source and drain regions. A gate conductor is positioned over the channel region. The insulator layer includes a heat dissipating structural feature adjacent the fin, and a portion of the gate conductor contacts the heat dissipating structural feature. The heat dissipating structural feature can comprise a recess within the insulator layer or a thermal conductor extending through the insulator layer.
    Type: Application
    Filed: May 31, 2007
    Publication date: September 27, 2007
    Inventors: Brent Anderson, Edward Nowak, Jed Rankin, William Clark
  • Publication number: 20070194373
    Abstract: A complementary metal oxide semiconductor (CMOS) structure includes a semiconductor substrate having first mesa having a first ratio of channel effective horizontal surface area to channel effective vertical surface area. The CMOS structure also includes a second mesa having a second ratio of the same surface areas that is greater than the first ratio. A first device having a first polarity uses the first mesa as a channel and benefits from the enhanced vertical crystallographic orientation. A second device having a second polarity different from the first polarity uses the second mesa as a channel and benefits from the enhanced horizontal crystallographic orientation.
    Type: Application
    Filed: February 22, 2006
    Publication date: August 23, 2007
    Inventors: Brent Anderson, Edward Nowak, Jed Rankin
  • Publication number: 20070170521
    Abstract: Disclosed is an integrated circuit with multiple semiconductor fins having different widths and variable spacing on the same substrate. The method of forming the circuit incorporates a sidewall image transfer process using different types of mandrels. Fin thickness and fin-to-fin spacing are controlled by an oxidation process used to form oxide sidewalls on the mandrels, and more particularly, by the processing time and the use of intrinsic, oxidation-enhancing and/or oxidation-inhibiting mandrels. Fin thickness is also controlled by using sidewalls spacers combined with or instead of the oxide sidewalls. Specifically, images of the oxide sidewalls alone, images of sidewall spacers alone, and/or combined images of sidewall spacers and oxide sidewalls are transferred into a semiconductor layer to form the fins. The fins with different thicknesses and variable spacing can be used to form a single multiple-fin FET or, alternatively, various single-fin and/or multiple-fin FETs.
    Type: Application
    Filed: January 12, 2006
    Publication date: July 26, 2007
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Wagdi Abadeer, Jeffrey Brown, Kiran Chatty, Robert Gauthier, Jed Rankin, William Tonti
  • Publication number: 20070143728
    Abstract: A circuit layout methology is provided for eliminating the extra processing time and file-space requirements associated with the optical proximity correction (OPC) of a VLSI design. The methodology starts with the design rules for a given manufacturing technology and establishes a new set of layer-specific grid values. A layout obeying these new grid requirements leads to a significant reduction in data preparation time, cost, and file size. A layout-migration tool can be used to modify an existing layout in order to enforce the new grid requirements.
    Type: Application
    Filed: February 16, 2007
    Publication date: June 21, 2007
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: John Cohn, Jason Hibbeler, Anthony Stamper, Jed Rankin
  • Publication number: 20070134864
    Abstract: Disclosed is a structure and method for producing a fin-type field effect transistor (FinFET) that has a buried oxide layer over a substrate, at least one first fin structure and at least one second fin structure positioned on the buried oxide layer. First spacers are adjacent the first fin structure and second spacers are adjacent the second fin structure. The first spacers cover a larger portion of the first fin structure when compared to the portion of the second fin structure covered by the second spacers. Those fins that have larger spacers will receive a smaller area of semiconductor doping and those fins that have smaller spacers will receive a larger area of semiconductor doping. Therefore, there is a difference in doping between the first fins and the second fins that is caused by the differently sized spacers. The difference in doping between the first fins and the second fins changes an effective width of the second fins when compared to the first fins.
    Type: Application
    Filed: February 6, 2007
    Publication date: June 14, 2007
    Inventors: Brent Anderson, Edward Nowak, Jed Rankin
  • Publication number: 20070127172
    Abstract: Disclosed is a method of executing an electrical function, such as a fusing operation, by activation through a chip embedded photodiode through spectrally selected external light activation, and corresponding structure and circuit. The present invention is based on having incident light with specific intensity/wave length characteristics, in conjunction with additional circuit elements to an integrated circuit, perform the implementation of repairs, i.e., replacing failing circuit elements with redundant ones for yield and/or reliability. Also to perform disconnection of ESD protection device from input pad once the packaged chip is placed in system. No additional pins on the package are necessary.
    Type: Application
    Filed: December 6, 2005
    Publication date: June 7, 2007
    Inventors: Wagdi Abadeer, James Adkisson, Jeffrey Brown, Kiran Chatty, Robert Gauthier, Michael Hauser, Jed Rankin, William Tonti
  • Publication number: 20070105024
    Abstract: A photomask, method of designing, of fabricating, of designing, a method of inspecting and a system for designing the photomask. The photomask, includes: a cell region, the cell region comprising one or more chip regions, each chip region comprising a pattern of opaque and clear sub-regions corresponding to features of an integrated circuit chip and one or more kerf regions, each kerf region comprising a pattern of opaque and clear sub-regions corresponding to features of an integrated circuit kerf; a clear region formed adjacent to a side of a copy region, the copy region comprising opaque and clear sub-regions that are copies of at least a part of the cell region; and an opaque region between the clear region and the cell region.
    Type: Application
    Filed: January 3, 2007
    Publication date: May 10, 2007
    Inventors: Jed Rankin, Andrew Watts
  • Publication number: 20070037098
    Abstract: Systems and methods for modifying features of a semiconductor device. The systems and methods of the invention modify features of a semiconductor device according to the amount of exposure dose of light to which a common reticle field of a semiconductor device is exposed. A mask, or a thin film provided on a mask, having sub-resolutions provided thereon determines the amount of exposure dose to which various parts of the reticle field is exposed during the exposure. As a result, different features within the same reticle field can exhibit different dimensions even though exposed to the same exposure dose.
    Type: Application
    Filed: August 10, 2005
    Publication date: February 15, 2007
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Brent Anderson, Jed Rankin
  • Publication number: 20070029576
    Abstract: The present invention relates to a programmable semiconductor device, preferably a FinFET or tri-gate structure, that contains a first contact element, a second contact element, and at least one fin-shaped fusible link region coupled between the first and second contact elements. The second contact element is laterally spaced apart from the first contact element, and the fin-shaped fusible link region has a vertically notched section. A programming current flowing through the fin-shaped fusible link region causes either significant resistance increase or formation of an electric discontinuity in the vertically notched section. Alternatively, the vertically notched section may contain a dielectric material, and application of a programming voltage between a gate electrode overlaying the vertically notched section and one of the contact elements breaks down the dielectric material and allows current flow between the gate electrode and the fin-shaped fusible link region.
    Type: Application
    Filed: August 3, 2005
    Publication date: February 8, 2007
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Edward Nowak, Jed Rankin, William Tonti
  • Publication number: 20070026579
    Abstract: An eFuse begins with a single crystal silicon-on-insulator (SOI) structure that has a single crystal silicon layer on a first insulator layer. The single crystal silicon layer is patterned into a strip. Before or after the patterning, the single crystal silicon layer is doped with one or more impurities. At least an upper portion of the single crystal silicon layer is then silicided to form a silicided strip. In one embodiment the entire single crystal silicon strip is silicided to create a silicide strip. Second insulator(s) is/are formed on the silicide strip, so as to isolate the silicided strip from surrounding structures. Before or after forming the second insulators, the method forms electrical contacts through the second insulators to ends of the silicided strip. By utilizing a single crystal silicon strip, any form of semiconductor, such as a diode, conductor, insulator, transistor, etc. can form the underlying portion of the fuse structure.
    Type: Application
    Filed: July 29, 2005
    Publication date: February 1, 2007
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Edward Nowak, Jed Rankin, William Tonti, Richard Williams