Patents by Inventor Milind S. Bhagavat

Milind S. Bhagavat 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: 10145711
    Abstract: Embodiments of the present disclosure provide an optical encoder for an electronic device. The optical encoder includes a spindle and an encoded pattern disposed around a circumference of the spindle. The encoded pattern may include one or more surface features that create a direction-dependent reflective region.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: December 4, 2018
    Assignee: APPLE INC.
    Inventors: Paisith P. Boonsom, Serhan O. Isikman, Richard Ruh, Prashanth S. Holenarsipur, Colin M. Ely, William N. Pickeral, Jairam Manjunathaiah, David G. Havskjold, Anant Rai, Maegan K. Spencer, Milind S. Bhagavat
  • Patent number: 9883822
    Abstract: A sensor includes a sensor array formed on a first side of a substrate and at least one circuit operative to communicate with the sensor array formed on a second side of the substrate. At least one via extends through the substrate to electrically connect the sensor array to the at least one circuit. Placing the at least one circuit on the second side of the substrate allows the sensor array to occupy substantially all of the first side of the substrate.
    Type: Grant
    Filed: June 13, 2016
    Date of Patent: February 6, 2018
    Assignee: Apple Inc.
    Inventors: Milind S. Bhagavat, Jun Zhai
  • Patent number: 9850127
    Abstract: In some embodiments, a microelectromechanical system may include a semiconductor substrate, a plurality of wiring layers, and a stop. The plurality of wiring layers may be coupled to a first surface of the semiconductor substrate. The stop may be coupled to the plurality of wiring layers. In some embodiments, at least a portion of the plurality of wiring layers between the stop and the first surface of the substrate comprises an insulating material. In some embodiments, at least the portion excludes wiring within. In some embodiments, a volume of the portion may be determined by a use of the microelectromechanical system. In some embodiments, the portion may inhibit, during use, electrical failures adjacent to the stop.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: December 26, 2017
    Assignee: Apple Inc.
    Inventors: Milind S. Bhagavat, Richard Yeh, Henry H. Yang
  • Publication number: 20170355599
    Abstract: In some embodiments, a microelectromechanical system may include a semiconductor substrate, a plurality of wiring layers, and a stop. The plurality of wiring layers may be coupled to a first surface of the semiconductor substrate. The stop may be coupled to the plurality of wiring layers. In some embodiments, at least a portion of the plurality of wiring layers between the stop and the first surface of the substrate comprises an insulating material. In some embodiments, at least the portion excludes wiring within. In some embodiments, a volume of the portion may be determined by a use of the microelectromechanical system. In some embodiments, the portion may inhibit, during use, electrical failures adjacent to the stop.
    Type: Application
    Filed: August 4, 2017
    Publication date: December 14, 2017
    Inventors: Milind S. Bhagavat, Richard Yeh, Henry H. Yang
  • Patent number: 9751756
    Abstract: In some embodiments, a microelectromechanical system may include a semiconductor substrate, a plurality of wiring layers, and a stop. The plurality of wiring layers may be coupled to a first surface of the semiconductor substrate. The stop may be coupled to the plurality of wiring layers. In some embodiments, at least a portion of the plurality of wiring layers between the stop and the first surface of the substrate comprises an insulating material. In some embodiments, at least the portion excludes wiring within. In some embodiments, a volume of the portion may be determined by a use of the microelectromechanical system. In some embodiments, the portion may inhibit, during use, electrical failures adjacent to the stop.
    Type: Grant
    Filed: August 4, 2014
    Date of Patent: September 5, 2017
    Assignee: Apple Inc.
    Inventors: Milind S. Bhagavat, Richard Yeh, Henry H. Yang
  • Patent number: 9679187
    Abstract: A finger biometric sensor assembly may include a finger biometric sensor integrated circuit (IC) die having a finger sensing area and a cover layer aligned with the finger sensing area. The finger biometric sensor may also include a direct bonding interface between the finger biometric sensor and the cover layer.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: June 13, 2017
    Assignee: APPLE INC.
    Inventors: Milind S. Bhagavat, Patrick E. O'Brien, Jun Zhai, Dale R. Setlak, David D. Coons, Kwan-Yu Lai
  • Publication number: 20160371529
    Abstract: A finger biometric sensor assembly may include a finger biometric sensor integrated circuit (IC) die having a finger sensing area and a cover layer aligned with the finger sensing area. The finger biometric sensor may also include a direct bonding interface between the finger biometric sensor and the cover layer.
    Type: Application
    Filed: June 17, 2015
    Publication date: December 22, 2016
    Inventors: Milind S. Bhagavat, Patrick E. O'Brien, Jun Zhai, Dale R. Setlak, David D. Coons, Kwan-Yu Lai
  • Publication number: 20160278671
    Abstract: A sensor includes a sensor array formed on a first side of a substrate and at least one circuit operative to communicate with the sensor array formed on a second side of the substrate. At least one via extends through the substrate to electrically connect the sensor array to the at least one circuit. Placing the at least one circuit on the second side of the substrate allows the sensor array to occupy substantially all of the first side of the substrate.
    Type: Application
    Filed: June 13, 2016
    Publication date: September 29, 2016
    Inventors: Milind S. Bhagavat, Jun Zhai
  • Publication number: 20160258784
    Abstract: Embodiments of the present disclosure provide an optical encoder for an electronic device. The optical encoder includes a spindle and an encoded pattern disposed around a circumference of the spindle. The encoded pattern may include one or more surface features that create a direction-dependent reflective region.
    Type: Application
    Filed: March 3, 2016
    Publication date: September 8, 2016
    Inventors: Paisith P. Boonsom, Serhan O. Isikman, Richard Ruh, Prashanth S. Holenarsipur, Colin M. Ely, William N. Pickeral, Jairam Manjunathaiah, David G. Havskjold, Anant Rai, Maegan K. Spencer, Milind S. Bhagavat
  • Publication number: 20160217311
    Abstract: A sensor includes a sensor array formed on a first side of a substrate and at least one circuit operative to communicate with the sensor array formed on a second side of the substrate. At least one via extends through the substrate to electrically connect the sensor array to the at least one circuit. Placing the at least one circuit on the second side of the substrate allows the sensor array to occupy substantially all of the first side of the substrate.
    Type: Application
    Filed: April 4, 2016
    Publication date: July 28, 2016
    Inventors: Milind S. Bhagavat, Jun Zhai
  • Patent number: 9305959
    Abstract: A sensor includes a sensor array formed on a first side of a substrate and at least one circuit operative to communicate with the sensor array formed on a second side of the substrate. At least one via extends through the substrate to electrically connect the sensor array to the at least one circuit. Placing the at least one circuit on the second side of the substrate allows the sensor array to occupy substantially all of the first side of the substrate.
    Type: Grant
    Filed: June 3, 2014
    Date of Patent: April 5, 2016
    Assignee: Apple Inc.
    Inventors: Milind S. Bhagavat, Jun Zhai
  • Patent number: 9287189
    Abstract: Methods, systems, and apparatuses for semiconductor devices are provided herein. A semiconductor device includes an array of conductive pads for signals. One or more non-linear compliant springs may be present to route signals from the conductive pads to interconnect pads formed on the semiconductor device to attach bump interconnects. Each non-linear compliant spring may include one or more routing segments. The semiconductor device may be mounted to a circuit board by the bump interconnects. When the semiconductor device operates, heat may be generated by the semiconductor device, causing thermal expansion by the semiconductor device and the circuit board. The semiconductor device and circuit board may expand by different amounts due to differences in their thermal coefficients of expansion. The non-linear compliant springs provide for compliance between the conductive pads and bump interconnects to allow for the different rates of expansion.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: March 15, 2016
    Assignee: Broadcom Corporation
    Inventors: Milind S. Bhagavat, Javed Iqbal Sandhu, Rezaur Rahman Khan, Teck Yang Tan
  • Patent number: 9236442
    Abstract: Methods and apparatuses are described for integration of integrated circuit die and silicon-based trench capacitors using silicon-level connections to reduce connection lengths, parasitics and necessary capacitance magnitudes and volumes. A trench capacitor can be fabricated on silicon and mounted on or embedded in a chip or one or more sides of a through silicon interposer (TSI) for silicon-level connections to chip circuitry. Aspect ratio dependent, as opposed to trench diameter or trench depth dependent, trench capacitors formed by a dense array of high aspect ratio trenches with thin, high permittivity dielectric increase capacitance per unit area and volume, resulting in thin, high capacitance trench capacitors having thickness equal to or less than chip thickness.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: January 12, 2016
    Assignee: Broadcom Corporation
    Inventors: Milind S. Bhagavat, Sampath Komarapalayam Velayudham Karikalan, Rezaur Rahman Khan
  • Publication number: 20150318230
    Abstract: Methods, systems, and apparatuses are described for cooling electronic devices. The electrical device includes an integrated circuit die (IC) having opposing first and second surfaces, a plurality of interconnects on the second surface of the IC die that enable the IC die to be coupled to a substrate, and a flexural plate wave device. The flexural plate wave device is configured to generate a stream of air to flow across the electrical device to cool the IC die during operation of the IC die.
    Type: Application
    Filed: July 16, 2015
    Publication date: November 5, 2015
    Inventors: Milind S. Bhagavat, Mehdi Saeidi, Tak Sang Yeung
  • Publication number: 20150291413
    Abstract: In some embodiments, a microelectromechanical system may include a semiconductor substrate, a plurality of wiring layers, and a stop. The plurality of wiring layers may be coupled to a first surface of the semiconductor substrate. The stop may be coupled to the plurality of wiring layers. In some embodiments, at least a portion of the plurality of wiring layers between the stop and the first surface of the substrate comprises an insulating material. In some embodiments, at least the portion excludes wiring within. In some embodiments, a volume of the portion may be determined by a use of the microelectromechanical system. In some embodiments, the portion may inhibit, during use, electrical failures adjacent to the stop.
    Type: Application
    Filed: August 4, 2014
    Publication date: October 15, 2015
    Inventors: Milind S. Bhagavat, Richard Yeh, Henry H. Yang
  • Patent number: 9123698
    Abstract: Methods, systems, and apparatuses are described for cooling electronic devices. The electrical device includes an integrated circuit die (IC) having opposing first and second surfaces, a plurality of interconnects on the second surface of the IC die that enable the IC die to be coupled to a substrate, and a flexural plate wave device. The flexural plate wave device is configured to generate a stream of air to flow across the electrical device to cool the IC die during operation of the IC die.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: September 1, 2015
    Assignee: Broadcom Corporation
    Inventors: Milind S. Bhagavat, Seyed Mahdi Saeidi, Tak Sang Yeung
  • Publication number: 20140361395
    Abstract: A sensor includes a sensor array formed on a first side of a substrate and at least one circuit operative to communicate with the sensor array formed on a second side of the substrate. At least one via extends through the substrate to electrically connect the sensor array to the at least one circuit. Placing the at least one circuit on the second side of the substrate allows the sensor array to occupy substantially all of the first side of the substrate.
    Type: Application
    Filed: June 3, 2014
    Publication date: December 11, 2014
    Applicant: Apple Inc.
    Inventors: Milind S. Bhagavat, Jun Zhai
  • Patent number: 8817472
    Abstract: An apparatus for cooling a semiconductor element is provided. The apparatus can include an electron emitter configured to emit electrons such that at least some of the emitted electrons become attached to air particulates and an air accelerator configured to generate an electric field that accelerates the air particulates toward the air accelerator to create an air flow over at least a portion of the semiconductor element. The air flow carries heat away from the at least a portion of the semiconductor element.
    Type: Grant
    Filed: June 13, 2011
    Date of Patent: August 26, 2014
    Assignee: Broadcom Corporation
    Inventors: Sam Ziqun Zhao, Milind S. Bhagavat
  • Publication number: 20140145300
    Abstract: Methods and apparatuses are described for integration of integrated circuit die and silicon-based trench capacitors using silicon-level connections to reduce connection lengths, parasitics and necessary capacitance magnitudes and volumes. A trench capacitor can be fabricated on silicon and mounted on or embedded in a chip or one or more sides of a through silicon interposer (TSI) for silicon-level connections to chip circuitry. Aspect ratio dependent, as opposed to trench diameter or trench depth dependent, trench capacitors formed by a dense array of high aspect ratio trenches with thin, high permittivity dielectric increase capacitance per unit area and volume, resulting in thin, high capacitance trench capacitors having thickness equal to or less than chip thickness.
    Type: Application
    Filed: December 21, 2012
    Publication date: May 29, 2014
    Applicant: BROADCOM CORPORATION
    Inventors: Milind S. Bhagavat, Sampath Komarapalayam Velayudham Karikalan, Rezaur Rahman Khan
  • Publication number: 20140124940
    Abstract: Methods, systems, and apparatuses for semiconductor devices are provided herein. A semiconductor device includes an array of conductive pads for signals. One or more non-linear compliant springs may be present to route signals from the conductive pads to interconnect pads formed on the semiconductor device to attach bump interconnects. Each non-linear compliant spring may include one or more routing segments. The semiconductor device may be mounted to a circuit board by the bump interconnects. When the semiconductor device operates, heat may be generated by the semiconductor device, causing thermal expansion by the semiconductor device and the circuit board. The semiconductor device and circuit board may expand by different amounts due to differences in their thermal coefficients of expansion. The non-linear compliant springs provide for compliance between the conductive pads and bump interconnects to allow for the different rates of expansion.
    Type: Application
    Filed: December 13, 2012
    Publication date: May 8, 2014
    Applicant: Broadcom Corporation
    Inventors: Milind S. Bhagavat, Javed Iqbal Sandhu, Rezaur Rahman Khan, Teck Yang Tan