Patents by Inventor Jeffrey Alan West

Jeffrey Alan West 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: 20230047044
    Abstract: A microelectronic device includes a semiconductor substrate and a high voltage isolation capacitor over the substrate. The capacitor includes a bottom capacitor plate over the substrate. Dielectric layers are formed above the bottom capacitor plate, including a top dielectric layer. A high dielectric layer on the top dielectric layer includes at least a first sublayer having a first dielectric constant that is higher than a dielectric constant of the top dielectric layer. A top capacitor plate is formed on the high dielectric layer over the bottom capacitor plate. An electric field abatement structure surrounds the top capacitor plate. The electric field abatement structure includes a shelf of the high dielectric layer extending outward from a lower corner of the bottom capacitor plate at least 14 microns, and an isolation break in the high dielectric layer past the shelf, in which the first sublayer is removed from the isolation break.
    Type: Application
    Filed: August 16, 2021
    Publication date: February 16, 2023
    Inventors: Elizabeth Stewart Costner, Jeffrey Alan West, Thomas Dyer Bonifield
  • Patent number: 11574995
    Abstract: A method forms a first voltage node of a high voltage component of a microelectronic device. The method also forms a plurality of dielectric layers. The method also forms a second voltage node of the high voltage component of the microelectronic device in a fourth position such that the plurality of dielectric layers is between the first voltage node and the second voltage node. During the forming a second voltage node step, a portion of a third layer in the plurality of dielectric layers, in a region outwardly positioned relative to the second voltage node, is removed to expose the second layer, in the plurality of dielectric layers, in the region.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: February 7, 2023
    Assignee: Texas Instmments Incorporated
    Inventor: Jeffrey Alan West
  • Publication number: 20230005874
    Abstract: In a described example, an apparatus includes: a package substrate having a die mount portion and lead portions spaced from the die mount portion; a semiconductor die over the die mount portion having bond pads on an active surface facing away from the package substrate; non-gold bond wires forming electrical connections between at least one of the bond pads and one of the lead portions of the package substrate; a bond stitch on bump connection formed between one of the non-gold bond wires and a bond pad of the semiconductor die, comprising a stitch bond formed on a flex stud bump; and dielectric material covering a portion of the package substrate, the semiconductor die, the non-gold bond wires, the stitch bond and the flex stud bump, forming a packaged semiconductor device.
    Type: Application
    Filed: June 30, 2021
    Publication date: January 5, 2023
    Inventors: Bo-Hsun Pan, Chien-Chang Li, Hung-Yu Chou, Shawn Martin O'Connor, Byron Lovell Williams, Jeffrey Alan West, Zi-Xian Zhan, Sheng-Wen Huang
  • Patent number: 11532693
    Abstract: Described examples include a hybrid circuit having a component. The component has a first conductive element on a substrate having a configuration and having a first periphery and having an extension at the first periphery. The component also has a dielectric on the first conductive element. The component also has a second conductive element having the configuration on the dielectric that is proximate to and aligned with the first conductive element, and has a second periphery, the extension of the first conductive element extending past the second periphery.
    Type: Grant
    Filed: January 19, 2021
    Date of Patent: December 20, 2022
    Assignee: Texas Instruments Incorporated
    Inventors: Jeffrey Alan West, Byron Lovell Williams, Elizabeth Costner Stewart, Thomas Dyer Bonifeld
  • Patent number: 11495553
    Abstract: A packaged multichip device includes a first IC die with an isolation capacitor utilizing a top metal layer as its top plate and a lower metal layer as its bottom plate. A second IC die has a second isolation capacitor utilizing its top metal layer as its top plate and a lower metal layer as its bottom plate. A first bondwire end is coupled to one top plate and a second bondwire end is coupled to the other top plate. The second bondwire end includes a stitch bond including a wire approach angle not normal to the top plate it is bonded to and is placed so that the stitch bond's center is positioned at least 5% further from an edge of this top plate on a bondwire crossover side compared to a distance of the stitch bond's center from the side opposite the bondwire crossover side.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: November 8, 2022
    Assignee: Texas Instruments Incorporated
    Inventors: Thomas Dyer Bonifield, Jeffrey Alan West, Byron Lovell Williams
  • Publication number: 20220231115
    Abstract: Described examples include a hybrid circuit having a component. The component has a first conductive element on a substrate having a configuration and having a first periphery and having an extension at the first periphery. The component also has a dielectric on the first conductive element. The component also has a second conductive element having the configuration on the dielectric that is proximate to and aligned with the first conductive element, and has a second periphery, the extension of the first conductive element extending past the second periphery.
    Type: Application
    Filed: January 19, 2021
    Publication date: July 21, 2022
    Inventors: Jeffrey Alan West, Byron Lovell Williams, Elizabeth Costner Stewart, Thomas Dyer Bonifeld
  • Publication number: 20220208956
    Abstract: A method forms a first voltage node of a high voltage component of a microelectronic device. The method also forms a plurality of dielectric layers. The method also forms a second voltage node of the high voltage component of the microelectronic device in a fourth position such that the plurality of dielectric layers is between the first voltage node and the second voltage node. During the forming a second voltage node step, a portion of a third layer in the plurality of dielectric layers, in a region outwardly positioned relative to the second voltage node, is removed to expose the second layer, in the plurality of dielectric layers, in the region.
    Type: Application
    Filed: December 30, 2020
    Publication date: June 30, 2022
    Inventor: Jeffrey Alan West
  • Publication number: 20220069066
    Abstract: A galvanic isolation capacitor device includes a semiconductor substrate and a PMD layer over the semiconductor substrate. The PMD layer has a first thickness. A lower metal plate is over the PMD layer and an ILD layer is on the lower metal plate; the ILD layer has a second thickness. A ratio of the first thickness to the second thickness is between about 1 and 1.55 inclusive. A first upper metal plate over the ILD layer has a first area and a second upper metal plate over the ILD layer has a second area; a ratio of the first area to the second area is greater than about 5. The galvanic isolation capacitor device can be part of a multi-chip module.
    Type: Application
    Filed: August 31, 2020
    Publication date: March 3, 2022
    Inventors: Thomas Dyer Bonifield, Jeffrey Alan West, Byron Lovell Williams, Elizabeth Costner Stewart
  • Patent number: 11227852
    Abstract: An integrated circuit and methods for packaging the integrated circuit. In one example, a method for packaging an integrated circuit includes connecting input/output pads of a first integrated circuit die to terminals of a lead frame via palladium coated copper wires. An oxygen plasma is applied to the first integrated circuit die and the palladium coated copper wires. The first integrated circuit die and the palladium coated copper wires are encapsulated in a mold compound after application of the oxygen plasma.
    Type: Grant
    Filed: April 21, 2020
    Date of Patent: January 18, 2022
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Honglin Guo, Jason Chien, Byron Lovell Williams, Jeffrey Alan West, Anderson Li, Arvin Nono Verdeflor
  • Patent number: 11205695
    Abstract: Methods of fabricating a thick oxide feature on a semiconductor wafer include forming a oxide layer having a thickness of at least six micrometers and depositing a photoresist layer on the oxide layer. The oxide layer has a first etch rate of X with a given etchant, the photoresist layer has a second etch rate of Y with the given etchant and the ratio of X:Y is less than 4:1. Prior to etching the photoresist layer and the oxide layer, the photoresist layer is patterned with a grayscale mask that creates a photoresist layer having a sidewall that forms an angle with the horizontal that is less than or equal to 10 degrees.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: December 21, 2021
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Elizabeth C. Stewart, Jeffrey Alan West, Thomas D. Bonifield, Jay Sung Chun, Byron Lovell Williams
  • Patent number: 11024576
    Abstract: A semiconductor package includes a leadframe including a sensor coil between sensor coil leads and further including a plurality of die leads physically and electrically separated from the sensor coil, and a semiconductor die over the leadframe with die contacts electrically connected to the die leads. The semiconductor die includes a sensor operable to detect magnetic fields created by electrical current through the sensor coil, the semiconductor die operable to output a signal representative of the detected magnetic fields via the die leads. The semiconductor package further includes a dielectric underfill filling a gap between the sensor coil and the semiconductor die, and a dielectric mold compound covering the sensor coil and the dielectric underfill and at least partially covering the semiconductor die and the die leads.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: June 1, 2021
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Jeffrey Alan West, Byron Lovell Williams, Thomas Dyer Bonifield
  • Patent number: 10998278
    Abstract: A microelectronic device contains a high voltage component having an upper plate and a lower plate. The upper plate is isolated from the lower plate by a main dielectric between the upper plate and low voltage elements at a surface of the substrate of the microelectronic device. A lower-bandgap dielectric layer is disposed between the upper plate and the main dielectric. The lower-bandgap dielectric layer contains at least one sub-layer of silicon nitride having a refractive index between 2.11 and 2.23. The lower-bandgap dielectric layer extends beyond the upper plate continuously around the upper plate. The lower-bandgap dielectric layer has an isolation break surrounding the upper plate at a distance of at least twice the thickness of the lower-bandgap dielectric layer from the upper plate.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: May 4, 2021
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Jeffrey Alan West, Thomas Dyer Bonifield, Yoshihiro Takei, Mitsuhiro Sugimoto
  • Patent number: 10957655
    Abstract: An IC includes a substrate including metal levels thereon including a top and bottom metal level with at least a transmit (Tx) circuit and receive (Rx) circuit each having ?1 isolation capacitor and an inductor. A scribe seal around the IC includes a first portion around the Tx circuit and second portion around the Rx circuit, utilizing ?2 of the metal levels including at least an outer metal stack. The Tx and Rx circuits are side-by-side along a direction that defines a length for the scribe seal. The outer metal stack includes a neck region between the scribe seal portions including a shorting structure including metal level(s) for shorting together the outer metal stack of the scribe seal portions. An optional routing pass-through isolated from the shorting structure includes other metal layers connecting through the neck region between node(s) within the first and second scribe seal portion.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: March 23, 2021
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Sreeram Subramanyam Nasum, Kumar Anurag Shrivastava, Jeffrey Alan West
  • Publication number: 20210020564
    Abstract: An integrated circuit includes a semiconductor substrate and a plurality of dielectric layers over the semiconductor substrate, including a top dielectric layer. A metal plate or metal coil is located over the top dielectric layer; a metal ring is located over the top dielectric layer and substantially surrounds the metal plate or metal coil. A protective overcoat overlies the metal ring and overlies the metal plate or metal coil. A trench opening is formed through the protective overcoat, with the trench opening exposing the top dielectric layer between the metal plate/coil and the metal ring, the trench opening substantially surrounding the metal plate or metal coil.
    Type: Application
    Filed: June 30, 2020
    Publication date: January 21, 2021
    Inventors: Jeffrey Alan West, Thomas Dyer Bonifield
  • Patent number: 10886120
    Abstract: An integrated circuit a semiconductor substrate includes a device die with includes transistors configured to execute an electrical function. A first interconnect layer of the device die is configured to route electrical signals or power to terminals of the transistors. An interlevel dielectric (ILD) layer is located over the interconnect layer. A metal electrode located over the ILD layer. A dielectric barrier layer is located between the ILD layer and the metal electrode. A scribe seal surrounds the device die. A first opening within the dielectric barrier layer surrounds the metal electrode. Second and third openings within the dielectric barrier layer are located between the first opening and the scribe seal.
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: January 5, 2021
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Jeffrey Alan West, Adrian Salinas, Elizabeth C. Stewart, Dhanoop Varghese, Thomas D. Bonifield
  • Patent number: 10847605
    Abstract: High voltage integrated circuit capacitors are disclosed. In an example arrangement, A capacitor structure includes a semiconductor substrate; a bottom plate having a conductive layer overlying the semiconductor substrate; a capacitor dielectric layer deposited overlying at least a portion of the bottom plate and having a first thickness greater than about 6 um in a first region; a sloped transition region in the capacitor dielectric at an edge of the first region, the sloped transition region having an upper surface with a slope of greater than 5 degrees from a horizontal plane and extending from the first region to a second region of the capacitor dielectric layer having a second thickness lower than the first thickness; and a top plate conductor formed overlying at least a portion of the capacitor dielectric layer in the first region. Methods and additional apparatus arrangements are disclosed.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: November 24, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Jeffrey Alan West, Thomas D. Bonifield, Byron Lovell Williams
  • Patent number: 10811492
    Abstract: A method of fabricating an integrated circuit includes applying photoresist to a MESA dielectric layer of a semiconductor structure, to generate a photoresist layer. The method also includes exposing the photoresist layer with a grayscale mask, to generate an exposed photoresist layer. The photoresist exposed layer includes a thick photoresist pattern in a first region, a thin photoresist pattern in a second region where a height of the thin photoresist pattern is less than half a height of the thick photoresist pattern, and a gap region between the thick photoresist pattern and the thin photoresist pattern.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: October 20, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Jeffrey Alan West, Byron Lovell Williams, John Britton Robbins
  • Publication number: 20200312794
    Abstract: A microelectronic device contains a high voltage component having an upper plate and a lower plate. The upper plate is isolated from the lower plate by a main dielectric between the upper plate and low voltage elements at a surface of the substrate of the microelectronic device. A lower-bandgap dielectric layer is disposed between the upper plate and the main dielectric. The lower-bandgap dielectric layer contains at least one sub-layer of silicon nitride having a refractive index between 2.11 and 2.23. The lower-bandgap dielectric layer extends beyond the upper plate continuously around the upper plate. The lower-bandgap dielectric layer has an isolation break surrounding the upper plate at a distance of at least twice the thickness of the lower-bandgap dielectric layer from the upper plate.
    Type: Application
    Filed: March 27, 2020
    Publication date: October 1, 2020
    Inventors: Jeffrey Alan West, Thomas Dyer Bonifield, Yoshihiro Takei, Mitsuhiro Sugimoto
  • Publication number: 20200251440
    Abstract: An integrated circuit and methods for packaging the integrated circuit. In one example, a method for packaging an integrated circuit includes connecting input/output pads of a first integrated circuit die to terminals of a lead frame via palladium coated copper wires. An oxygen plasma is applied to the first integrated circuit die and the palladium coated copper wires. The first integrated circuit die and the palladium coated copper wires are encapsulated in a mold compound after application of the oxygen plasma.
    Type: Application
    Filed: April 21, 2020
    Publication date: August 6, 2020
    Inventors: Honglin GUO, Jason CHIEN, Byron Lovell WILLIAMS, Jeffrey Alan WEST, Anderson LI, Arvin Nono VERDEFLOR
  • Patent number: 10707297
    Abstract: A microelectronic device contains a high voltage component having a high voltage node and a low voltage node. The high voltage node is isolated from the low voltage node by a main dielectric between the high voltage node and low voltage elements at a surface of the substrate of the microelectronic device. A lower-bandgap dielectric layer is disposed between the high voltage node and the main dielectric. The lower-bandgap dielectric layer contains at least one sub-layer with a bandgap energy less than a bandgap energy of the main dielectric. The lower-bandgap dielectric layer extends beyond the high voltage node continuously around the high voltage node. The lower-bandgap dielectric layer has an isolation break surrounding the high voltage node at a distance of at least twice the thickness of the lower-bandgap dielectric layer from the high voltage node.
    Type: Grant
    Filed: November 1, 2018
    Date of Patent: July 7, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Jeffrey Alan West, Thomas D. Bonifield, Byron Lovell Williams