Patents by Inventor Mahdi Haghzadeh

Mahdi Haghzadeh 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: 20220220331
    Abstract: This disclosure describes manufacture of a mixture and use of same to fabricate different types of electronic components. In one configuration, the mixture includes: first particles, the first particles being an insulator material; second particles, the second particles being electrically conductive metal material; and a combination of the first particles and the second particles suspended in a printable liquid medium, the printable liquid/solid medium (slurry) being curable into a dielectric layer of material. According to one configuration, the printable material is disposed and cured on a substrate. The first particles and second particles are randomly distributed in the cured printed material (dielectric material). The second particles in the cured dielectric material are transformable into one or more electrically conductive paths, electronic components, etc., via application of heat above a threshold value.
    Type: Application
    Filed: July 30, 2020
    Publication date: July 14, 2022
    Inventors: Oshadha K. Ranasingha, Andrew M. Luce, Guinevere M. Strack, Mahdi Haghzadeh, Cameron Hardie, Edward Kingsley, Craig A. Armiento, Alkim Akyurtlu
  • Patent number: 10703877
    Abstract: Flexible substrates including a polymer selected from a thermoplastic polymer, a thermoset polymer, and/or a polymer blend, and ferroelectric perovskite-type oxide particles dispersed in the polymer, where the ferroelectric perovskite-type oxide has a dielectric constant that varies with applied voltage. The flexible substrates can be used in tunable electronics.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: July 7, 2020
    Assignee: University of Massachusetts
    Inventors: Alkim Akyurtlu, Joey L. Mead, Carol M. F. Barry, Mahdi Haghzadeh, Artee Panwar, Mary K. Herndon
  • Publication number: 20200148905
    Abstract: This disclosure describes manufacture of mixture and use of same to fabricate a respective electronic device. In one embodiment, the mixture includes: perovskite oxide particles and a solvent. The solvent is a water-soluble liquid such as ethylene glycol. A combination of the perovskite oxide particles and the solvent are mixed for subsequent fabrication (such as via a printing head of a printer) of an electronic device.
    Type: Application
    Filed: November 8, 2018
    Publication date: May 14, 2020
    Inventors: Oshadha K. Ranasingha, Mahdi Haghzadeh, Alkim Akyurtlu, Craig A. Armiento
  • Patent number: 10287446
    Abstract: A novel ferroelectric ink comprising multiphase Barium Strontium Titanate (BST) in a polymer composite is described. The ink can be employed using direct-ink writing techniques to print high dielectric constant, low loss, and electrostatically-tunable dielectrics on substrates. The substrates can be flexible such as plastics or rigid, such as substrates comprising semiconductor materials or ceramics and the like. The dielectric ink is made by suspending pre-sintered nano/submicron-sized particles of BST in a thermoplastic polymer with a solvent. After printing with the ink, a low temperature curing process is performed at temperatures below 200° C., a temperature too low to sinter BST. Fully printed devices, such as a varactor and a phase shifter using direct ink writing methodologies are described.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: May 14, 2019
    Assignee: University of Massachusetts
    Inventors: Mahdi Haghzadeh, Alkim Akyurtlu, Craig Armiento
  • Publication number: 20180134866
    Abstract: Flexible substrates including a polymer selected from a thermoplastic polymer, a thermoset polymer, and/or a polymer blend, and ferroelectric perovskite-type oxide particles dispersed in the polymer, where the ferroelectric perovskite-type oxide has a dielectric constant that varies with applied voltage. The flexible substrates can be used in tunable electronics.
    Type: Application
    Filed: November 15, 2017
    Publication date: May 17, 2018
    Applicant: THE UNIVERSITY OF MASSACHUSETTS
    Inventors: Alkim Akyurtlu, Joey L. Mead, Carol M.F. Barry, Mahdi Haghzadeh, Artee Panwar, Mary K. Herndon
  • Publication number: 20180072901
    Abstract: A novel ferroelectric ink comprising multiphase Barium Strontium Titanate (BST) in a polymer composite is described. The ink can be employed using direct-ink writing techniques to print high dielectric constant, low loss, and electrostatically-tunable dielectrics on substrates. The substrates can be flexible such as plastics or rigid, such as substrates comprising semiconductor materials or ceramics and the like. The dielectric ink is made by suspending pre-sintered nano/submicron-sized particles of BST in a thermoplastic polymer with a solvent. After printing with the ink, a low temperature curing process is performed at temperatures below 200° C., a temperature too low to sinter BST. Fully printed devices, such as a varactor and a phase shifter using direct ink writing methodologies are described.
    Type: Application
    Filed: November 6, 2017
    Publication date: March 15, 2018
    Inventors: Mahdi Haghzadeh, Alkim Akyurtlu, Craig Armiento
  • Patent number: 9809720
    Abstract: A novel ferroelectric ink comprising multiphase Barium Strontium Titanate (BST) in a polymer composite is described. The ink can be employed using direct-ink writing techniques to print high dielectric constant, low loss, and electrostatically-tunable dielectrics on substrates. The substrates can be flexible such as plastics or rigid, such as substrates comprising semiconductor materials or ceramics and the like. The dielectric ink is made by suspending pre-sintered nano/submicron-sized particles of BST in a thermoplastic polymer with a solvent. After printing with the ink, a low temperature curing process is performed at temperatures below 200° C., a temperature too low to sinter BST. Fully printed devices, such as a varactor and a phase shifter using direct ink writing methodologies are described.
    Type: Grant
    Filed: July 6, 2016
    Date of Patent: November 7, 2017
    Assignee: University of Massachusetts
    Inventors: Mahdi Haghzadeh, Alkim Akyurtlu, Craig Armiento
  • Publication number: 20170009090
    Abstract: A novel ferroelectric ink comprising multiphase Barium Strontium Titanate (BST) in a polymer composite is described. The ink can be employed using direct-ink writing techniques to print high dielectric constant, low loss, and electrostatically-tunable dielectrics on substrates. The substrates can be flexible such as plastics or rigid, such as substrates comprising semiconductor materials or ceramics and the like. The dielectric ink is made by suspending pre-sintered nano/submicron-sized particles of BST in a thermoplastic polymer with a solvent. After printing with the ink, a low temperature curing process is performed at temperatures below 200° C., a temperature too low to sinter BST. Fully printed devices, such as a varactor and a phase shifter using direct ink writing methodologies are described.
    Type: Application
    Filed: July 6, 2016
    Publication date: January 12, 2017
    Inventors: Mahdi Haghzadeh, Alkim Akyurtlu, Craig Armiento