Patents by Inventor Mehul D. Shroff

Mehul D. Shroff 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: 11222679
    Abstract: A packaged integrated circuit includes a photodiode and a memory. The photodiode generates energy when radiation strikes a surface of the photodiode. The memory includes a plurality of non-volatile memory cells and memory control circuitry. The memory control circuitry is configured to perform an operation to change values stored in at least some of the memory cells of the plurality of non-volatile memory cells while being powered by energy generated by the photodiode. An encapsulant at least partially encapsulates the photodiode and the memory, in which the encapsulant blocks radiation from reaching the surface of the photodiode.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: January 11, 2022
    Assignee: NXP USA, Inc.
    Inventors: Nihaar N. Mahatme, Mehul D. Shroff
  • Publication number: 20210082488
    Abstract: A packaged integrated circuit includes a photodiode and a memory. The photodiode generates energy when radiation strikes a surface of the photodiode. The memory includes a plurality of non-volatile memory cells and memory control circuitry. The memory control circuitry is configured to perform an operation to change values stored in at least some of the memory cells of the plurality of non-volatile memory cells while being powered by energy generated by the photodiode. An encapsulant at least partially encapsulates the photodiode and the memory, in which the encapsulant blocks radiation from reaching the surface of the photodiode.
    Type: Application
    Filed: September 17, 2019
    Publication date: March 18, 2021
    Inventors: Nihaar N. Mahatme, Mehul D. Shroff
  • Patent number: 10921390
    Abstract: An integrated circuit includes a magneto resistive RAM (MRAM) array having a plurality of MRAM cells, and a set of at least one Hall sensor circuit, each of the set including a Hall sensor to detect a magnetic field. The integrated circuit also includes magnetic processing circuitry for receiving at least one indication from the set of at least one Hall sensor circuit. The magnetic processing circuitry including an output to provide an indication of a possible magnetic field threat to the MRAM array based on the at least one indication from the set.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: February 16, 2021
    Assignee: NXP USA, Inc.
    Inventors: Nihaar N. Mahatme, Mehul D. Shroff
  • Publication number: 20200379063
    Abstract: An integrated circuit includes a magneto resistive RAM (MRAM) array having a plurality of MRAM cells, and a set of at least one Hall sensor circuit, each of the set including a Hall sensor to detect a magnetic field. The integrated circuit also includes magnetic processing circuitry for receiving at least one indication from the set of at least one Hall sensor circuit. The magnetic processing circuitry including an output to provide an indication of a possible magnetic field threat to the MRAM array based on the at least one indication from the set.
    Type: Application
    Filed: May 31, 2019
    Publication date: December 3, 2020
    Inventors: Nihaar N. Mahatme, Mehul D. Shroff
  • Patent number: 10510616
    Abstract: A method of making a semiconductor device with an air gap for a terminal of a semiconductor device includes forming a sacrificial sidewall spacer and removing the spacer after the formation of contact structures for the semiconductor device. The air gap is located in portions of the wafer where the sacrificial air gap was removed. Since the contacts are formed prior to the removal of the sacrificial spacers, air gaps can advantageously be formed without electrically conductive contact material undesirably being deposited in locations of the desired air gap.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: December 17, 2019
    Assignee: NXP USA, INC.
    Inventors: Mehul D. Shroff, Douglas Michael Reber
  • Publication number: 20190206740
    Abstract: A method of making a semiconductor device with an air gap for a terminal of a semiconductor device includes forming a sacrificial sidewall spacer and removing the spacer after the formation of contact structures for the semiconductor device. The air gap is located in portions of the wafer where the sacrificial air gap was removed. Since the contacts are formed prior to the removal of the sacrificial spacers, air gaps can advantageously be formed without electrically conductive contact material undesirably being deposited in locations of the desired air gap.
    Type: Application
    Filed: December 15, 2017
    Publication date: July 4, 2019
    Inventors: Mehul D. Shroff, Douglas Michael Reber
  • Patent number: 10262893
    Abstract: A semiconductor device and a method for making the semiconductor device are provided. The method of making the semiconductor device may include patterning a layer for a first conductor and a second conductor, plating patterned portions of the layer to form the first conductor and the second conductor, removing patterned material to form an air gap between the first conductor and the second conductor, applying a self-supporting film on top of the first conductor and the second conductor to enclose the air gap, and reacting the self-supporting film causing the self-supporting film to be substantially non-conductive.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: April 16, 2019
    Assignee: NXP USA, INC.
    Inventors: Douglas M. Reber, Mehul D. Shroff
  • Patent number: 10204860
    Abstract: A method for forming a semiconductor structure includes forming a first metal layer over a first dielectric layer, forming a first graphene layer on at least one major surface of the first metal layer, and forming a second dielectric layer over the first metal layer and the first graphene layer. The method further includes forming an opening in the second dielectric layer which exposes the first metal layer, forming a second metal layer over the second dielectric layer and within the opening, and forming a second graphene layer on at least one major surface of the second metal layer, wherein the second graphene layer is also formed within the opening.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: February 12, 2019
    Assignee: NXP USA, Inc.
    Inventors: Douglas M. Reber, Mehul D. Shroff
  • Patent number: 10103241
    Abstract: A multigate transistor is formed on a wafer with a first material and a second material. Portions of the second material are selectively removed from the first material to form an opening in the first material. An epitaxially grown semiconductor material is grown from a seed layer into the opening. A portion of the first material is removed around the epitaxially grown semiconductor material in the opening and a gate material is formed in locations of the removed first material. The epitaxially grown semiconductor material in the opening serves as a channel region for a multigate transistor and the gate material serves as a gate for the multigate transistor.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: October 16, 2018
    Assignee: NXP USA, INC.
    Inventors: Douglas Michael Reber, Mehul D. Shroff
  • Publication number: 20180261682
    Abstract: A multigate transistor is formed on a wafer with a first material and a second material. Portions of the second material are selectively removed from the first material to form an opening in the first material. An epitaxially grown semiconductor material is grown from a seed layer into the opening. A portion of the first material is removed around the epitaxially grown semiconductor material in the opening and a gate material is formed in locations of the removed first material. The epitaxially grown semiconductor material in the opening serves as a channel region for a multigate transistor and the gate material serves as a gate for the multigate transistor.
    Type: Application
    Filed: March 7, 2017
    Publication date: September 13, 2018
    Inventors: Douglas Michael REBER, Mehul D. SHROFF
  • Patent number: 10014257
    Abstract: An integrated circuit device includes a first line in a first metal layer of the integrated circuit device, wherein the first line forms at least a portion of an interconnect, a second line in a second metal layer of the integrated circuit device, and a first via that couples the first line to the second line. The integrated circuit device further includes a first stressor disposed at a first area of the interconnect, wherein the first area at least partially overlaps the first via, wherein the first stressor alters an electromigration stress profile for the interconnect by altering a stress at the first area to be less tensile.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: July 3, 2018
    Assignee: NXP USA, INC.
    Inventors: Douglas M. Reber, Mehul D. Shroff, Edward O. Travis
  • Patent number: 10008447
    Abstract: A semiconductor device includes a circuitry die and a solar cell die. The circuitry die includes a plurality of interconnect layers on a front side of the circuitry die, a metallization layer on a back side of the circuitry die, and at least one TSV (through substrate via) that makes an electrical connection between a last metal interconnect layer on the front side of the circuitry die and the metallization layer on the back side of the circuitry die. The solar cell die is configured to power the circuitry die. The solar cell die includes a transparent contact on a front side of the solar cell die. A back side of the solar cell die is attached to the back side of the circuitry die and makes electrical contact with the metallization layer on the back side of the circuitry die.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: June 26, 2018
    Assignee: NXP USA, Inc.
    Inventors: Douglas M. Reber, Mehul D. Shroff
  • Publication number: 20180047616
    Abstract: A semiconductor device and a method for making the semiconductor device are provided. The method of making the semiconductor device may include patterning a layer for a first conductor and a second conductor, plating patterned portions of the layer to form the first conductor and the second conductor, removing patterned material to form an air gap between the first conductor and the second conductor, applying a self-supporting film on top of the first conductor and the second conductor to enclose the air gap, and reacting the self-supporting film causing the self-supporting film to be substantially non-conductive.
    Type: Application
    Filed: October 3, 2017
    Publication date: February 15, 2018
    Inventors: DOUGLAS M. REBER, Mehul D. Shroff
  • Patent number: 9818642
    Abstract: A semiconductor device and a method for making the semiconductor device are provided. The method of making the semiconductor device may include patterning a layer for a first conductor and a second conductor, plating patterned portions of the layer to form the first conductor and the second conductor, removing patterned material to form an air gap between the first conductor and the second conductor, applying a self-supporting film on top of the first conductor and the second conductor to enclose the air gap, and reacting the self-supporting film causing the self-supporting film to be substantially non-conductive.
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: November 14, 2017
    Assignee: NXP USA, INC.
    Inventors: Douglas M. Reber, Mehul D. Shroff
  • Patent number: 9716141
    Abstract: A disclosed method of fabricating a hybrid nanopillar device includes forming a mask on a substrate and a layer of nanoclusters on the hard mask. The hard mask is then etched to transfer a pattern formed by the first layer of nanoclusters into a first region of the hard mask. A second nanocluster layer is formed on the substrate. A second region of the hard mask overlying a second region of the substrate is etched to create a second pattern in the hard mask. The substrate is then etched through the hard mask to form a first set of nanopillars in the first region of the substrate and a second set of nanopillars in the second region of the substrate. By varying the nanocluster deposition steps between the first and second layers of nanoclusters, the first and second sets of nanopillars will exhibit different characteristics.
    Type: Grant
    Filed: January 13, 2015
    Date of Patent: July 25, 2017
    Assignee: NXP USA, INC.
    Inventors: Mark D. Hall, Mehul D. Shroff
  • Patent number: 9712054
    Abstract: A design verification system simulates operation of an electronic device to identify one or more power characteristic vs. temperature (PC-T) curves for the electronic device. Each of the one or more PC-T curves indicates, for a particular reliability characteristic limit, a range of power characteristic values over a corresponding range of temperatures that are not expected to result in the reliability characteristic limit being exceeded. Based on the one or more PC-T curves, the design verification system sets a range of power characteristic limits, over a corresponding range of temperatures, for the electronic device. During operation, the electronic device employs a temperature sensor to measure an ambient or device temperature, and sets its power characteristic (voltage or current) according to the measured temperature and the power characteristic limits.
    Type: Grant
    Filed: October 28, 2014
    Date of Patent: July 18, 2017
    Assignee: NXP USA, INC.
    Inventors: Mehul D. Shroff, Xavier Hours
  • Patent number: 9702925
    Abstract: A semiconductor device includes a substrate, first electronic circuitry formed on the substrate, a first diode buried in the substrate under the first electronic circuitry, and a first fault detection circuit coupled to the first diode to detect energetic particle strikes on the first electronic circuitry.
    Type: Grant
    Filed: October 15, 2014
    Date of Patent: July 11, 2017
    Assignee: NXP USA, Inc.
    Inventors: Mark D. Hall, Mehul D. Shroff
  • Publication number: 20170194264
    Abstract: A method for forming a semiconductor structure includes forming a first metal layer over a first dielectric layer, forming a first graphene layer on at least one major surface of the first metal layer, and forming a second dielectric layer over the first metal layer and the first graphene layer. The method further includes forming an opening in the second dielectric layer which exposes the first metal layer, forming a second metal layer over the second dielectric layer and within the opening, and forming a second graphene layer on at least one major surface of the second metal layer, wherein the second graphene layer is also formed within the opening.
    Type: Application
    Filed: March 20, 2017
    Publication date: July 6, 2017
    Inventors: DOUGLAS M. REBER, MEHUL D. SHROFF
  • Patent number: 9685405
    Abstract: A semiconductor structure comprising a fuse/resistor structure over a functional layer having a substrate. The fuse/resistor structure includes a via, a first interconnect layer, and a second interconnect layer. The via is over the functional layer and has a first end and a second end vertically opposite the first end, wherein the first end is bounded by a first edge and a second edge opposite the first edge and the second end is bounded by a third edge and a fourth edge opposite the third edge. The first interconnect layer includes a first metal layer running horizontally and contacting the first end and completely extending from the first edge to the second edge. The second interconnect layer includes a second metal layer running horizontally and contacting the second end of the via and extending past the third edge but reaching less than half way to the fourth edge.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: June 20, 2017
    Assignee: NXP USA, INC.
    Inventors: Mehul D. Shroff, Douglas M. Reber, Edward O. Travis
  • Patent number: 9640430
    Abstract: A method for forming a semiconductor structure includes forming a first metal layer over a first dielectric layer, forming a first graphene layer on at least one major surface of the first metal layer, and forming a second dielectric layer over the first metal layer and the first graphene layer. The method further includes forming an opening in the second dielectric layer which exposes the first metal layer, forming a second metal layer over the second dielectric layer and within the opening, and forming a second graphene layer on at least one major surface of the second metal layer, wherein the second graphene layer is also formed within the opening.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: May 2, 2017
    Assignee: NXP USA, INC.
    Inventors: Douglas M. Reber, Mehul D. Shroff