Patents by Inventor Ali Afzali Ardakani

Ali Afzali Ardakani 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: 20190361011
    Abstract: The compositions described herein include a substrate, wherein the substrate is a metal, metal oxide, metal nitride or a silicon containing material; a self-assembled monolayer (SAM) bonded to the substrate, wherein the self-assembled monolayer comprises: a surface binding unit bonded to the substrate, wherein the surface binding unit is selected from the group consisting of hydroxamates, phosphonates, catechols, halosilanes, alkoxysilanes, phosphonic acids, alkenes, alkynes, alcohols, 1,2-diols, and thiols; a separator unit bonded to the surface binding unit; a mass altering unit bonded to the separator unit; and a detector unit bonded to the separator unit.
    Type: Application
    Filed: May 23, 2018
    Publication date: November 28, 2019
    Inventors: Bharat KUMAR, Sufi ZAFAR, Ali AFZALI-ARDAKANI
  • Patent number: 10485430
    Abstract: An apparatus includes a wearable sensor structure that includes multiple individual sensor units placed in a row. Each individual sensor unit includes a first portion to contact a surface of skin under which arteries and/or veins are to be located, and a second portion that contacts the first portion and is configured to have a capacitance. The first and second portions are configured to create a capacitance change in response to a squeezing or bending between the first portion and a fixed part of the second portion caused by a pulse pressure and release of the pulse pressure. The apparatus includes circuitry configured to measure waveforms for the individual sensor units. Each waveform captures the capacitance change for its corresponding individual sensor unit. The apparatus includes a wireless interface configured to transmit the waveforms. A computing system is also disclosed that analyzes the waveforms and can provide alerts based thereon.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: November 26, 2019
    Assignee: International Business Machines Corporation
    Inventors: Ali Afzali-Ardakani, Kang-Wook Lee, Robert S. Olyha, Jr.
  • Patent number: 10476016
    Abstract: Device architectures based on trapping and de-trapping holes or electrons and/or recombination of both types of carriers are obtained by carrier trapping either in near-interface deep ambipolar states or in quantum wells/dots, either serving as ambipolar traps in semiconductor layers or in gate dielectric/barrier layers. In either case, the potential barrier for trapping is small and retention is provided by carrier confinement in the deep trap states and/or quantum wells/dots. The device architectures are usable as three terminal or two terminal devices.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: November 12, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Ali Afzali-Ardakani, Tze-Chiang Chen, Kailash Gopalakrishnan, Bahman Hekmatshoartabari
  • Publication number: 20190288210
    Abstract: A method of fabricating a carbon nanotube based device, including forming a trench having a bottom surface and sidewalls on a substrate, selectively depositing a bi-functional compound having two reactive moieties in the trench, wherein a first of the two reactive moieties selectively binds to the bottom surface, converting a second of the two reactive moieties to a diazonium salt; and reacting the diazonium salt with a dispersion of carbon nanotubes to form a carbon nanotube layer bound to the bottom surface of the trench.
    Type: Application
    Filed: May 29, 2019
    Publication date: September 19, 2019
    Inventors: Ali Afzali-Ardakani, Bharat Kumar, George S. Tulevski
  • Publication number: 20190288211
    Abstract: A method of fabricating a carbon nanotube based device, including forming a trench having a bottom surface and sidewalls on a substrate, selectively depositing a bi-functional compound having two reactive moieties in the trench, wherein a first of the two reactive moieties selectively binds to the bottom surface, converting a second of the two reactive moieties to a diazonium salt; and reacting the diazonium salt with a dispersion of carbon nanotubes to form a carbon nanotube layer bound to the bottom surface of the trench.
    Type: Application
    Filed: May 29, 2019
    Publication date: September 19, 2019
    Inventors: Ali Afzali-Ardakani, Bharat Kumar, George S. Tulevski
  • Publication number: 20190286859
    Abstract: Systems, methods, and electronic circuits facilitating embedded sensor chips in polymer-based coatings are provided. In one example, a method comprises fabricating an electronic circuit, the electronic circuit comprising one or more semiconductor devices, one or more sensors, and a communication element; encapsulating the electronic circuit within an insulator, resulting in an encapsulated circuit; and dispersing the encapsulated circuit into a lacquer solution comprising a polymer carrier and a solvent.
    Type: Application
    Filed: May 23, 2019
    Publication date: September 19, 2019
    Inventors: Ali Afzali-Ardakani, Homa Alemzadeh, Maryam Ashoori, Bahman Hekmatshoartabari, Elham Khabiri
  • Patent number: 10387694
    Abstract: Systems, methods, and electronic circuits facilitating embedded sensor chips in polymer-based coatings are provided. In one example, a method comprises fabricating an electronic circuit, the electronic circuit comprising one or more semiconductor devices, one or more sensors, and a communication element; encapsulating the electronic circuit within an insulator, resulting in an encapsulated circuit; and dispersing the encapsulated circuit into a lacquer solution comprising a polymer carrier and a solvent.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: August 20, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Ali Afzali-Ardakani, Homa Alemzadeh, Maryam Ashoori, Bahman Hekmatshoartabari, Elham Khabiri
  • Patent number: 10374179
    Abstract: In one aspect, a method for placing carbon nanotubes on a dielectric includes: using DSA of a block copolymer to create a pattern in the placement guide layer on the dielectric which includes multiple trenches in the placement guide layer, wherein there is a first charge on sidewall and top surfaces of the trenches and a second charge on bottom surfaces of the trenches, and wherein the first charge is different from the second charge; and depositing a carbon nanotube solution onto the dielectric, wherein self-assembly of the deposited carbon nanotubes within the trenches occurs based on i) attractive forces between the first charge on the surfaces of the carbon nanotubes and the second charge on the bottom surfaces of the trenches and ii) repulsive forces between the first charge on the surfaces of the carbon nanotubes and the first charge on sidewall and top surfaces of the trenches.
    Type: Grant
    Filed: January 14, 2019
    Date of Patent: August 6, 2019
    Assignee: International Business Machines Corporation
    Inventors: Ali Afzali-Ardakani, Sarunya Bangsaruntip, Shu-Jen Han, HsinYu Tsai
  • Publication number: 20190234801
    Abstract: A computer-eimplemented thermal imaging device having an optically-sensitive layer that includes a superpixel having at least one pixel. The at least one pixel includes a plasmonic absorber configured to obtain radiance measurements of electromagnetic radiation emitted from an object at a plurality of wavelengths. The device further includes a processor configured to determine an emissivity and temperature for the electromagnetic radiation received at the plasmonic material from the object using the radiance measurements and to form an image of the object from the determined emissivity and temperature.
    Type: Application
    Filed: April 10, 2019
    Publication date: August 1, 2019
    Inventors: Ali Afzali-Ardakani, Abram L. Falk, Damon B. Farmer, Shu-Jen Han, George S. Tulevski
  • Publication number: 20190234800
    Abstract: A computer-implemented method of forming a thermal-based electronic image of an object that includes receiving electromagnetic radiation emitted by the object at an optically sensitive layer including a superpixel having a plurality of pixels. Each pixel of the plurality of pixels includes a plasmonic absorber having a characteristic resonance wavelength and that generates a radiance measurement of the electromagnetic radiation at its characteristic resonance wavelength. The method further provides for determining, at a processor, an emissivity and temperature for the electromagnetic radiation received at the superpixel using the radiance measurements obtained at the pixels of the superpixel. In addition, the method provides for forming an image of the object from the determined emissivity and temperature.
    Type: Application
    Filed: April 10, 2019
    Publication date: August 1, 2019
    Inventors: Ali Afzali-Ardakani, Abram L. Falk, Damon B. Farmer, Shu-Jen Han, George S. Tulevski
  • Publication number: 20190237511
    Abstract: Hybrid high electron mobility field-effect transistors including inorganic channels and organic gate barrier layers are used in some applications for forming high resolution active matrix displays. Arrays of such high electron mobility field-effect transistors are electrically connected to thin film switching transistors and provide high drive currents for passive devices such as organic light emitting diodes. The organic gate barrier layers are operative to suppress both electron and hole transport between the inorganic channel layer and the gate electrodes of the high electron mobility field-effect transistors.
    Type: Application
    Filed: April 6, 2019
    Publication date: August 1, 2019
    Inventors: Ali Afzali-Ardakani, Bahman Hekmatshoartabari, Devendra K. Sadana, Davood Shahrjerdi
  • Patent number: 10367146
    Abstract: A method of fabricating a carbon nanotube based device, including forming a trench having a bottom surface and sidewalls on a substrate, selectively depositing a bi-functional compound having two reactive moieties in the trench, wherein a first of the two reactive moieties selectively binds to the bottom surface, converting a second of the two reactive moieties to a diazonium salt; and reacting the diazonium salt with a dispersion of carbon nanotubes to form a carbon nanotube layer bound to the bottom surface of the trench.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: July 30, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Ali Afzali-Ardakani, Bharat Kumar, George S. Tulevski
  • Publication number: 20190198762
    Abstract: A method of forming a resistive random access memory (RRAM) element, the method includes forming a Silicon layer on an oxide layer, depositing a thin film dopant layer on the Silicon layer, and controlling a concentration of the dopant in the thin film dopant layer.
    Type: Application
    Filed: February 28, 2019
    Publication date: June 27, 2019
    Applicant: International Business Machines Corporation
    Inventors: Ali AFZALI-ARDAKANI, Matthew Warren COPEL, James Bowler HANNON, Satoshi OIDA
  • Publication number: 20190198761
    Abstract: A resistive element in an artificial neural network, the resistive element includes a Silicon-on-insulator (SOI) substrate, and a Silicon layer formed on the Silicon-on-insulator substrate. The Silicon layer includes dopants derived from a thin film dopant layer, and the thin film dopant layer includes a programmed amount of dopant including at least one of Boron and Phosphorus.
    Type: Application
    Filed: February 28, 2019
    Publication date: June 27, 2019
    Applicant: International Business Machines Corporation
    Inventors: Ali Afzali-Ardakani, Matthew Warren Copel, James Bowler Hannon, Satoshi Oida
  • Publication number: 20190164779
    Abstract: Embodiments of the present invention provide systems and methods for constructing photo-electrodes. Hydrogenated crystalline silicon is disposed over an absorption layer, wherein the hydrogenated crystalline silicon is attached to self-assembled monolayers (SAMs). Metal electrodes are disposed over the SAMs. Surface passivation is achieved by the hydrogenated crystalline silicon and the SAMs. Resistance to surface corrosion is provided by the SAMs.
    Type: Application
    Filed: November 29, 2017
    Publication date: May 30, 2019
    Inventors: Bahman Hekmatshoartabari, Ali Afzali-Ardakani, Oki Gunawan, Ghavam G. Shahidi
  • Publication number: 20190165289
    Abstract: In one aspect, a method for placing carbon nanotubes on a dielectric includes: using DSA of a block copolymer to create a pattern in the placement guide layer on the dielectric which includes multiple trenches in the placement guide layer, wherein there is a first charge on sidewall and top surfaces of the trenches and a second charge on bottom surfaces of the trenches, and wherein the first charge is different from the second charge; and depositing a carbon nanotube solution onto the dielectric, wherein self-assembly of the deposited carbon nanotubes within the trenches occurs based on i) attractive forces between the first charge on the surfaces of the carbon nanotubes and the second charge on the bottom surfaces of the trenches and ii) repulsive forces between the first charge on the surfaces of the carbon nanotubes and the first charge on sidewall and top surfaces of the trenches.
    Type: Application
    Filed: January 14, 2019
    Publication date: May 30, 2019
    Inventors: Ali Afzali-Ardakani, Sarunya Bangsaruntip, Shu-Jen Han, HsinYu Tsai
  • Publication number: 20190165277
    Abstract: A method of fabricating a carbon nanotube based device, including forming a trench having a bottom surface and sidewalls on a substrate, selectively depositing a bi-functional compound having two reactive moieties in the trench, wherein a first of the two reactive moieties selectively binds to the bottom surface, converting a second of the two reactive moieties to a diazonium salt; and reacting the diazonium salt with a dispersion of carbon nanotubes to form a carbon nanotube layer bound to the bottom surface of the trench.
    Type: Application
    Filed: February 1, 2019
    Publication date: May 30, 2019
    Inventors: Ali Afzali-Ardakani, Bharat Kumar, George S. Tulevski
  • Publication number: 20190165276
    Abstract: A method of fabricating a carbon nanotube based device, including forming a trench having a bottom surface and sidewalls on a substrate, selectively depositing a bifunctional compound having two reactive moieties in the trench, wherein a first of the two reactive moieties selectively binds to the bottom surface, converting a second of the two reactive moieties to a diazonium salt; and reacting the diazonium salt with a dispersion of carbon nanotubes to form a carbon nanotube layer bound to the bottom surface of the trench.
    Type: Application
    Filed: February 1, 2019
    Publication date: May 30, 2019
    Inventors: Ali Afzali-Ardakani, Bharat Kumar, George S. Tulevski
  • Publication number: 20190164597
    Abstract: A method of forming an Integrated Circuit (IC) chip, the IC chip and an on-chip synaptic crossbar memory array. Chip devices are formed on a surface of a semiconductor wafer. A connective layer is formed above the chip devices. A bottom electrode layer is formed on the connective layer. A neuromorphic synapse layer is formed above the bottom electrode layer with each synapse on a bottom electrode. Upper electrodes are formed above the synapses and orthogonal to bottom electrode lines. Each synapse being beneath an upper electrode where the upper electrode crosses a bottom electrode. Upper electrodes are refractory metal and the bottom electrodes are copper, or vice versa.
    Type: Application
    Filed: November 29, 2017
    Publication date: May 30, 2019
    Applicant: International Business Machines Corporation
    Inventors: Ali Afzali-Ardakani, Talia S. Gershon, Pouya Hashemi, Bahman Hekmatshoartabari
  • Publication number: 20190137341
    Abstract: A computer-eimplemented method and thermal imaging device includes a layer of plasmonic material and a processor. The layer of plasmonic material receive electromagnetic radiation from an object and generates radiance measurements of the electromagnetic radiation at a plurality of wavelengths. The processor determines an emissivity and temperature of the object from the radiance measurements and forms a thermal-based electronic image of the object from the determined emissivity and temperature.
    Type: Application
    Filed: November 3, 2017
    Publication date: May 9, 2019
    Inventors: Ali Afzali-Ardakani, Abram L. Falk, Damon B. Farmer, Shu-Jen Han, George S. Tulevski