Patents by Inventor James Walter Blatchford

James Walter Blatchford 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: 11974421
    Abstract: An integrated circuit with a SAR SRAM cell with power routed in metal-1. An integrated circuit with a SAR SRAM cell that has power routed in Metal-1 and has metal-1 and metal-2 integrated circuit and SAR SRAM cell patterns which are DPT compatible. A process of forming an integrated circuit with a SAR SRAM cell with DPT compatible integrated circuit and SAR SRAM cell metal-1 and metal-2 patterns.
    Type: Grant
    Filed: October 15, 2020
    Date of Patent: April 30, 2024
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventor: James Walter Blatchford
  • Publication number: 20210028179
    Abstract: An integrated circuit with a SAR SRAM cell with power routed in metal-1. An integrated circuit with a SAR SRAM cell that has power routed in Metal-1 and has metal-1 and metal-2 integrated circuit and SAR SRAM cell patterns which are DPT compatible. A process of forming an integrated circuit with a SAR SRAM cell with DPT compatible integrated circuit and SAR SRAM cell metal-1 and metal-2 patterns.
    Type: Application
    Filed: October 15, 2020
    Publication date: January 28, 2021
    Inventor: James Walter Blatchford
  • Patent number: 10840250
    Abstract: An integrated circuit with a SAR SRAM cell with power routed in metal-1. An integrated circuit with a SAR SRAM cell that has power routed in Metal-1 and has metal-1 and metal-2 integrated circuit and SAR SRAM cell patterns which are DPT compatible. A process of forming an integrated circuit with a SAR SRAM cell with DPT compatible integrated circuit and SAR SRAM cell metal-1 and metal-2 patterns.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: November 17, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventor: James Walter Blatchford
  • Patent number: 10741489
    Abstract: A rectangular via extending between interconnects in different metallization levels can have a planform with a width equal to the width of the interconnects and a length equal to twice the width and can be aligned along a long dimension with a length of the upper interconnect. In an integrated circuit layout, the planform can be centered over the width of the lower interconnect, allowing for misalignment during fabrication while maintaining a robust electrical connection. The bottom of the via may be aligned with an upper surface of the lower interconnect or may include portions below the lower interconnect's upper surface. Fewer adjacent routing tracks are blocked by use of the rectangular via than would be blocked using redundant square vias, while ensuring reliability of the electrical connection despite potential misalignment during fabrication.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: August 11, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventor: James Walter Blatchford
  • Publication number: 20190109143
    Abstract: An integrated circuit with a SAR SRAM cell with power routed in metal-1. An integrated circuit with a SAR SRAM cell that has power routed in Metal-1 and has metal-1 and metal-2 integrated circuit and SAR SRAM cell patterns which are DPT compatible. A process of forming an integrated circuit with a SAR SRAM cell with DPT compatible integrated circuit and SAR SRAM cell metal-1 and metal-2 patterns.
    Type: Application
    Filed: December 6, 2018
    Publication date: April 11, 2019
    Inventor: James Walter Blatchford
  • Patent number: 10181474
    Abstract: An integrated circuit with a SAR SRAM cell with power routed in metal-1. An integrated circuit with a SAR SRAM cell that has power routed in Metal-1 and has metal-1 and metal-2 integrated circuit and SAR SRAM cell patterns which are DPT compatible. A process of forming an integrated circuit with a SAR SRAM cell with DPT compatible integrated circuit and SAR SRAM cell metal-1 and metal-2 patterns.
    Type: Grant
    Filed: September 19, 2012
    Date of Patent: January 15, 2019
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventor: James Walter Blatchford
  • Patent number: 10103171
    Abstract: An integrated circuit containing elongated contacts, including elongated contacts which connect to at least three active areas and/or MOS gates, and including elongated contacts which connect to exactly two active areas and/or MOS gates and directly connect to a first level interconnect. A process of forming an integrated circuit containing elongated contacts, including elongated contacts which connect to at least three active areas and/or MOS gates, using exactly two contact photolithographic exposure operations, and including elongated contacts which connect to exactly two active areas and/or MOS gates and directly connect to a first level interconnect.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: October 16, 2018
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: James Walter Blatchford, Scott William Jessen
  • Patent number: 10103153
    Abstract: An integrated circuit with a SAR SRAM cell with power routed in metal-1. An integrated circuit with a SAR SRAM cell that has power routed in Metal-1 and has metal-1 and metal-2 integrated circuit and SAR SRAM cell patterns which are DPT compatible. A process of forming an integrated circuit with a SAR SRAM cell with DPT compatible integrated circuit and SAR SRAM cell metal-1 and metal-2 patterns.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: October 16, 2018
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventor: James Walter Blatchford
  • Patent number: 10043714
    Abstract: A process of forming an integrated circuit containing elongated contacts which connect to three active areas and/or MOS gates, and elongated contacts which connect to two active areas and/or MOS gates and directly connect to a first level interconnect, using a litho-freeze-litho-etch process for a contact etch mask. A process of forming an integrated circuit containing elongated contacts which connect to three active areas and/or MOS gates, and elongated contacts which connect to two active areas and/or MOS gates and directly connect to a first level interconnect, using a litho-freeze-litho-etch process for a first level interconnect trench etch mask. A process of forming the integrated circuit using a litho-freeze-litho-etch process for a contact etch mask and a litho-freeze-litho-etch process for a first level interconnect trench etch mask.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: August 7, 2018
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: James Walter Blatchford, Scott William Jessen
  • Patent number: 10008499
    Abstract: An integrated circuit with an MOS transistor abutting field oxide and a gate structure on the field oxide adjacent to the MOS transistor and a gap between an epitaxial source/drain and the field oxide is formed with a silicon dioxide-based gap filler in the gap. Metal silicide is formed on the exposed epitaxial source/drain region. A CESL is formed over the integrated circuit and a PMD layer is formed over the CESL. A contact is formed through the PMD layer and CESL to make an electrical connection to the metal silicide on the epitaxial source/drain region.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: June 26, 2018
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Kwan-Yong Lim, James Walter Blatchford, Shashank S. Ekbote, Younsung Choi
  • Patent number: 9899364
    Abstract: An integrated circuit with an active geometry with a wide active region and with a narrow active region with at least one jog where said wide active region transitions to said narrow active region and where a gate overlies said jog. A method of making an integrated circuit with an active geometry with a wide active region and with a narrow active region with at least one jog where said wide active region transitions to said narrow active region, where a gate overlies said jog and where a gate overlies the wide active region forming a wide transistor.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: February 20, 2018
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: James Walter Blatchford, Thomas J. Aton
  • Publication number: 20180047728
    Abstract: An integrated circuit with an MOS transistor abutting field oxide and a gate structure on the field oxide adjacent to the MOS transistor and a gap between an epitaxial source/drain and the field oxide is formed with a silicon dioxide-based gap filler in the gap. Metal silicide is formed on the exposed epitaxial source/drain region. A CESL is formed over the integrated circuit and a PMD layer is formed over the CESL. A contact is formed through the PMD layer and CESL to make an electrical connection to the metal silicide on the epitaxial source/drain region.
    Type: Application
    Filed: October 3, 2017
    Publication date: February 15, 2018
    Inventors: Kwan-Yong LIM, James Walter BLATCHFORD, Shashank S. EKBOTE, Younsung CHOI
  • Patent number: 9812452
    Abstract: An integrated circuit with an MOS transistor abutting field oxide and a gate structure on the field oxide adjacent to the MOS transistor and a gap between an epitaxial source/drain and the field oxide is formed with a silicon dioxide-based gap filler in the gap. Metal silicide is formed on the exposed epitaxial source/drain region. A CESL is formed over the integrated circuit and a PMD layer is formed over the CESL. A contact is formed through the PMD layer and CESL to make an electrical connection to the metal silicide on the epitaxial source/drain region.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: November 7, 2017
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Kwan-Yong Lim, James Walter Blatchford, Shashank S. Ekbote, Younsung Choi
  • Publication number: 20170178966
    Abstract: A process of forming an integrated circuit containing elongated contacts which connect to three active areas and/or MOS gates, and elongated contacts which connect to two active areas and/or MOS gates and directly connect to a first level interconnect, using a litho-freeze-litho-etch process for a contact etch mask. A process of forming an integrated circuit containing elongated contacts which connect to three active areas and/or MOS gates, and elongated contacts which connect to two active areas and/or MOS gates and directly connect to a first level interconnect, using a litho-freeze-litho-etch process for a first level interconnect trench etch mask. A process of forming the integrated circuit using a litho-freeze-litho-etch process for a contact etch mask and a litho-freeze-litho-etch process for a first level interconnect trench etch mask.
    Type: Application
    Filed: March 2, 2017
    Publication date: June 22, 2017
    Inventors: James Walter BLATCHFORD, Scott William JESSEN
  • Patent number: 9620419
    Abstract: A process of forming an integrated circuit containing elongated contacts which connect to three active areas and/or MOS gates, and elongated contacts which connect to two active areas and/or MOS gates and directly connect to a first level interconnect, using a litho-freeze-litho-etch process for a contact etch mask. A process of forming an integrated circuit containing elongated contacts which connect to three active areas and/or MOS gates, and elongated contacts which connect to two active areas and/or MOS gates and directly connect to a first level interconnect, using a litho-freeze-litho-etch process for a first level interconnect trench etch mask. A process of forming the integrated circuit using a litho-freeze-litho-etch process for a contact etch mask and a litho-freeze-litho-etch process for a first level interconnect trench etch mask.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: April 11, 2017
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: James Walter Blatchford, Scott William Jessen
  • Publication number: 20170047329
    Abstract: An integrated circuit with an MOS transistor abutting field oxide and a gate structure on the field oxide adjacent to the MOS transistor and a gap between an epitaxial source/drain and the field oxide is formed with a silicon dioxide-based gap filler in the gap. Metal silicide is formed on the exposed epitaxial source/drain region. A CESL is formed over the integrated circuit and a PMD layer is formed over the CESL. A contact is formed through the PMD layer and CESL to make an electrical connection to the metal silicide on the epitaxial source/drain region.
    Type: Application
    Filed: October 27, 2016
    Publication date: February 16, 2017
    Inventors: Kwan-Yong LIM, James Walter BLATCHFORD, Shashank S. EKBOTE, Younsung CHOI
  • Patent number: 9508601
    Abstract: An integrated circuit with an MOS transistor abutting field oxide and a gate structure on the field oxide adjacent to the MOS transistor and a gap between an epitaxial source/drain and the field oxide is formed with a silicon dioxide-based gap filler in the gap. Metal silicide is formed on the exposed epitaxial source/drain region. A CESL is formed over the integrated circuit and a PMD layer is formed over the CESL. A contact is formed through the PMD layer and CESL to make an electrical connection to the metal silicide on the epitaxial source/drain region.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: November 29, 2016
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Kwan-Yong Lim, James Walter Blatchford, Shashank S. Ekbote, Younsung Choi
  • Publication number: 20160190156
    Abstract: An integrated circuit containing elongated contacts, including elongated contacts which connect to at least three active areas and/or MOS gates, and including elongated contacts which connect to exactly two active areas and/or MOS gates and directly connect to a first level interconnect. A process of forming an integrated circuit containing elongated contacts, including elongated contacts which connect to at least three active areas and/or MOS gates, using exactly two contact photolithographic exposure operations, and including elongated contacts which connect to exactly two active areas and/or MOS gates and directly connect to a first level interconnect.
    Type: Application
    Filed: March 10, 2016
    Publication date: June 30, 2016
    Inventors: James Walter BLATCHFORD, Scott William JESSEN
  • Publication number: 20160190016
    Abstract: A process of forming an integrated circuit containing elongated contacts which connect to three active areas and/or MOS gates, and elongated contacts which connect to two active areas and/or MOS gates and directly connect to a first level interconnect, using a litho-freeze-litho-etch process for a contact etch mask. A process of forming an integrated circuit containing elongated contacts which connect to three active areas and/or MOS gates, and elongated contacts which connect to two active areas and/or MOS gates and directly connect to a first level interconnect, using a litho-freeze-litho-etch process for a first level interconnect trench etch mask. A process of forming the integrated circuit using a litho-freeze-litho-etch process for a contact etch mask and a litho-freeze-litho-etch process for a first level interconnect trench etch mask.
    Type: Application
    Filed: March 3, 2016
    Publication date: June 30, 2016
    Inventors: James Walter BLATCHFORD, Scott William JESSEN
  • Patent number: 9312170
    Abstract: An integrated circuit containing elongated contacts, including elongated contacts which connect to at least three active areas and/or MOS gates, and including elongated contacts which connect to exactly two active areas and/or MOS gates and directly connect to a first level interconnect. A process of forming an integrated circuit containing elongated contacts, including elongated contacts which connect to at least three active areas and/or MOS gates, using exactly two contact photolithographic exposure operations, and including elongated contacts which connect to exactly two active areas and/or MOS gates and directly connect to a first level interconnect.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: April 12, 2016
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: James Walter Blatchford, Scott William Jessen