Patents by Inventor Qi-Zhong Hong

Qi-Zhong Hong 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: 11848268
    Abstract: A device including a thin film resistor (TFR) structure. The TFR structure is accessible by one or more conductive vias that extend vertically from an upper metal layer to completely penetrate a TFR layer positioned thereunder. The conductive vias are coupled to one or more sidewalls of the TFR layer at or near the sites of penetration. The TFR structure can be manufactured by a method that includes etching a via trench completely through the TFR layer and a dielectric layer above the TFR layer, and filling the via trench with a conductor coupled to a sidewall of the TFR layer.
    Type: Grant
    Filed: July 16, 2021
    Date of Patent: December 19, 2023
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Dhishan Kande, Qi-Zhong Hong, Abbas Ali, Gregory B. Shinn
  • Publication number: 20230386907
    Abstract: An electronic device includes a semiconductor die having a multilevel metallization structure including stacked levels with respective dielectric layers and metal lines, and a low leakage, low hydrogen diffusion barrier layer on one of the stacked levels. The diffusion barrier layer contacts a side of the dielectric layer and the metal line of the one of the stacked levels, and the diffusion barrier layer includes silicon nitride material having a first bond percentage ratio of ammonia to silicon nitride that is greater than a second bond percentage ratio of silicon hydride to silicon nitride.
    Type: Application
    Filed: May 24, 2022
    Publication date: November 30, 2023
    Inventors: Qi-Zhong Hong, Joseph Jian Song, Gregory Boyd Shinn, Bhaskar Srinivasan
  • Publication number: 20230154915
    Abstract: An electronic device includes a first thin film resistor and a second thin film resistor above a dielectric layer that extends in a first plane of orthogonal first and second directions, the first resistor has three portions with the second portion extending between the first and third portions, and a recess etched into the top side of the second portion by a controlled etch process to increase the sheet resistance of the first resistor for dual thin film resistor integration.
    Type: Application
    Filed: November 12, 2021
    Publication date: May 18, 2023
    Inventors: Bhaskar Srinivasan, Qi-Zhong Hong, Jarvis Benjamin Jacobs
  • Patent number: 11424183
    Abstract: An integrated circuit (IC) includes a substrate having a semiconductor surface layer with functional circuitry for realizing at least one circuit function, with an inter level dielectric (ILD) layer on a metal layer that is above the semiconductor surface layer. A thin film resistor (TFR) including a TFR layer is on the ILD layer. At least one vertical metal wall is on at least two sides of the TFR. The metal walls include at least 2 metal levels coupled by filled vias. The functional circuitry is outside the metal walls.
    Type: Grant
    Filed: August 17, 2020
    Date of Patent: August 23, 2022
    Assignee: Texas Instruments Incorporated
    Inventors: Qi-Zhong Hong, Honglin Guo, Benjamin James Timmer, Gregory Boyd Shinn
  • Publication number: 20210343642
    Abstract: A device including a thin film resistor (TFR) structure. The TFR structure is accessible by one or more conductive vias that extend vertically from an upper metal layer to completely penetrate a TFR layer positioned thereunder. The conductive vias are coupled to one or more sidewalls of the TFR layer at or near the sites of penetration. The TFR structure can be manufactured by a method that includes etching a via trench completely through the TFR layer and a dielectric layer above the TFR layer, and filling the via trench with a conductor coupled to a sidewall of the TFR layer.
    Type: Application
    Filed: July 16, 2021
    Publication date: November 4, 2021
    Inventors: Dhishan Kande, Qi-Zhong Hong, Abbas Ali, Gregory B. Shinn
  • Patent number: 11101212
    Abstract: A device including a thin film resistor (TFR) structure. The TFR structure is accessible by one or more conductive vias that extend vertically from an upper metal layer to completely penetrate a TFR layer positioned thereunder. The conductive vias are coupled to one or more sidewalls of the TFR layer at or near the sites of penetration. The TFR structure can be manufactured by a method that includes etching a via trench completely through the TFR layer and a dielectric layer above the TFR layer, and filling the via trench with a conductor coupled to a sidewall of the TFR layer.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: August 24, 2021
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Dhishan Kande, Qi-Zhong Hong, Abbas Ali, Gregory B. Shinn
  • Publication number: 20200381358
    Abstract: An integrated circuit (IC) includes a substrate having a semiconductor surface layer with functional circuitry for realizing at least one circuit function, with an inter level dielectric (ILD) layer on a metal layer that is above the semiconductor surface layer. A thin film resistor (TFR) including a TFR layer is on the ILD layer. At least one vertical metal wall is on at least two sides of the TFR. The metal walls include at least 2 metal levels coupled by filled vias. The functional circuitry is outside the metal walls.
    Type: Application
    Filed: August 17, 2020
    Publication date: December 3, 2020
    Inventors: Qi-Zhong HONG, Honglin GUO, Benjamin James Timmer, Gregory Boyd SHINN
  • Patent number: 10784193
    Abstract: An integrated circuit (IC) includes a substrate having a semiconductor surface layer with functional circuitry for realizing at least one circuit function, with an inter level dielectric (ILD) layer on a metal layer that is above the semiconductor surface layer. A thin film resistor (TFR) including a TFR layer is on the ILD layer. At least one vertical metal wall is on at least two sides of the TFR. The metal walls include at least 2 metal levels coupled by filled vias. The functional circuitry is outside the metal walls.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: September 22, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Qi-Zhong Hong, Honglin Guo, Benjamin James Timmer, Gregory Boyd Shinn
  • Publication number: 20200035598
    Abstract: An integrated circuit (IC) includes a substrate having a semiconductor surface layer with functional circuitry for realizing at least one circuit function, with an inter level dielectric (ILD) layer on a metal layer that is above the semiconductor surface layer. A thin film resistor (TFR) including a TFR layer is on the ILD layer. At least one vertical metal wall is on at least two sides of the TFR. The metal walls include at least 2 metal levels coupled by filled vias. The functional circuitry is outside the metal walls.
    Type: Application
    Filed: July 27, 2018
    Publication date: January 30, 2020
    Inventors: QI-ZHONG HONG, HONGLIN GUO, BENJAMIN JAMES TIMMER, GREGORY BOYD SHINN
  • Patent number: 10439020
    Abstract: A method of fabricating integrated circuits (ICs) includes depositing a dielectric liner layer on a substrate including a semiconductor surface having a plurality of IC die formed therein each including functional circuitry including a plurality of interconnected transistors. A thin film resistor (TFR) layer including chromium (Cr) is deposited on the dielectric liner layer. The substrate is loaded into a hardmask layer deposition tool that includes a plasma source. The TFR layer is in-situ plasma pre-treated including flowing at least one inert gas and at least one oxidizing gas while in the hardmask layer deposition tool. A hardmask layer is deposited after the plasma pre-treating while remaining in the hardmask layer deposition tool. A pattern is formed on the hardmask layer, and the hardmask layer and TFR layer are etched stopping in the dielectric liner layer to form at least one resistor from the defined TFR layer.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: October 8, 2019
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Abbas Ali, Dhishan Kande, Qi-Zhong Hong, Shih Chang Chang
  • Publication number: 20190295948
    Abstract: A device including a thin film resistor (TFR) structure. The TFR structure is accessible by one or more conductive vias that extend vertically from an upper metal layer to completely penetrate a TFR layer positioned thereunder. The conductive vias are coupled to one or more sidewalls of the TFR layer at or near the sites of penetration. The TFR structure can be manufactured by a method that includes etching a via trench completely through the TFR layer and a dielectric layer above the TFR layer, and filling the via trench with a conductor coupled to a sidewall of the TFR layer.
    Type: Application
    Filed: May 28, 2019
    Publication date: September 26, 2019
    Inventors: Dhishan Kande, Qi-Zhong Hong, Abbas Ali, Gregory B. Shinn
  • Patent number: 10361095
    Abstract: A method of fabricating an integrated circuit (IC) includes depositing an aluminum-containing metal interconnect layer at a first temperature over a semiconductor device having a plurality of transistors. The metal interconnect layer is annealed at a maximum annealing temperature that is less than the first temperature. The metal interconnect layer is patterned after the annealing, thereby interconnecting the transistors.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: July 23, 2019
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Abbas Ali, Dhishan Kande, Qi-Zhong Hong, Young-Joon Park, Kyle McPherson
  • Publication number: 20190221516
    Abstract: A device including a thin film resistor (TFR) structure. The TFR structure is accessible by one or more conductive vias that extend vertically from an upper metal layer to completely penetrate a TFR layer positioned thereunder. The conductive vias are coupled to one or more sidewalls of the TFR layer at or near the sites of penetration. The TFR structure can be manufactured by a method that includes etching a via trench completely through the TFR layer and a dielectric layer above the TFR layer, and filling the via trench with a conductor coupled to a sidewall of the TFR layer.
    Type: Application
    Filed: January 16, 2018
    Publication date: July 18, 2019
    Inventors: Dhishan Kande, Qi-Zhong Hong, Abbas Ali, Gregory B. Shinn
  • Patent number: 10354951
    Abstract: A device including a thin film resistor (TFR) structure. The TFR structure is accessible by one or more conductive vias that extend vertically from an upper metal layer to completely penetrate a TFR layer positioned thereunder. The conductive vias are coupled to one or more sidewalls of the TFR layer at or near the sites of penetration. The TFR structure can be manufactured by a method that includes etching a via trench completely through the TFR layer and a dielectric layer above the TFR layer, and filling the via trench with a conductor coupled to a sidewall of the TFR layer.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: July 16, 2019
    Assignee: Texas Instruments Incorporated
    Inventors: Dhishan Kande, Qi-Zhong Hong, Abbas Ali, Gregory B. Shinn
  • Publication number: 20190198603
    Abstract: A method of fabricating integrated circuits (ICs) includes depositing a dielectric liner layer on a substrate including a semiconductor surface having a plurality of IC die formed therein each including functional circuitry including a plurality of interconnected transistors. A thin film resistor (TFR) layer including chromium (Cr) is deposited on the dielectric liner layer. The substrate is loaded into a hardmask layer deposition tool that includes a plasma source. The TFR layer is in-situ plasma pre-treated including flowing at least one inert gas and at least one oxidizing gas while in the hardmask layer deposition tool. A hardmask layer is deposited after the plasma pre-treating while remaining in the hardmask layer deposition tool. A pattern is formed on the hardmask layer, and the hardmask layer and TFR layer are etched stopping in the dielectric liner layer to form at least one resistor from the defined TFR layer.
    Type: Application
    Filed: December 27, 2017
    Publication date: June 27, 2019
    Inventors: ABBAS ALI, DHISHAN KANDE, QI-ZHONG HONG, SHIH CHANG CHANG
  • Publication number: 20190108943
    Abstract: High voltage capacitors and methods of manufacturing the same are disclosed. An apparatus includes a first electrode of a capacitor above a semiconductor substrate. The first electrode is parallel to a plane perpendicular to the substrate. The apparatus further includes a second electrode spaced apart from the first electrode and parallel to the plane. The first electrode and the second electrode each including: (1) a first metal segment in a first metal layer, (2) a second metal segment in a second metal layer, and (3) a conductive via in an intermetal dielectric layer between the first and second metal layers interconnecting the first and second metal segments.
    Type: Application
    Filed: October 11, 2017
    Publication date: April 11, 2019
    Inventors: Gang Liu, Qi-Zhong Hong
  • Patent number: 10242147
    Abstract: A method of operating a computer system to improve via electromigration in an integrated circuit with multilevel interconnect. A method of operating a computer system to improve via electromigration in an integrated circuit with multilevel interconnect using via priority groups.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: March 26, 2019
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventor: Qi-Zhong Hong
  • Publication number: 20190074193
    Abstract: A method of fabricating an integrated circuit (IC) includes depositing an aluminum-containing metal interconnect layer at a first temperature over a semiconductor device having a plurality of transistors. The metal interconnect layer is annealed at a maximum annealing temperature that is less than the first temperature. The metal interconnect layer is patterned after the annealing, thereby interconnecting the transistors.
    Type: Application
    Filed: May 16, 2018
    Publication date: March 7, 2019
    Inventors: Abbas ALI, Dhishan KANDE, Qi-Zhong HONG, Young-Joon PARK, Kyle MCPHERSON
  • Patent number: 10211278
    Abstract: A device and method for fabricating an integrated circuit (IC) chip is disclosed. The method includes depositing a first thin film resistor material on a first inter-level dielectric (ILD) layer; depositing an etch retardant layer overlying the first thin film resistor material; and patterning and etching the etch retardant layer and the first thin film resistor material to form a first resistor. The method continues with depositing a second ILD layer overlying the first resistor; and patterning and etching the second ILD layer using a first etch chemistry to form vias through the second ILD layer and the etch retardant layer to the first resistor. The etch retardant layer is selective to a first etch chemistry and the thickness of the etch retardant layer is such that the via etching process removes substantially all exposed portions of the etch retardant layer and substantially prevents consumption of the underlying first thin film resistor material.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: February 19, 2019
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Abbas Ali, Dhishan Kande, Qi-Zhong Hong
  • Publication number: 20190019858
    Abstract: A device and method for fabricating an integrated circuit (IC) chip is disclosed. The method includes depositing a first thin film resistor material on a first inter-level dielectric (ILD) layer; depositing an etch retardant layer overlying the first thin film resistor material; and patterning and etching the etch retardant layer and the first thin film resistor material to form a first resistor. The method continues with depositing a second ILD layer overlying the first resistor; and patterning and etching the second ILD layer using a first etch chemistry to form vias through the second ILD layer and the etch retardant layer to the first resistor. The etch retardant layer is selective to a first etch chemistry and the thickness of the etch retardant layer is such that the via etching process removes substantially all exposed portions of the etch retardant layer and substantially prevents consumption of the underlying first thin film resistor material.
    Type: Application
    Filed: July 11, 2017
    Publication date: January 17, 2019
    Inventors: Abbas Ali, Dhishan Kande, Qi-Zhong Hong