Patents by Inventor Giancarlo Zago

Giancarlo Zago 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).

  • Additive feed systems, ingot puller apparatus and methods for forming a single crystal silicon ingot with use of such additive feed systems
    Patent number: 11499245
    Abstract: Additive feed systems for feeding at least two different additives to silicon disposed within a crucible of an ingot puller apparatus are disclosed. The additive feed system may include first and second feed trays which are caused to vibrate to move first or second additive from a canister in which the additive is stored to another vessel in which the amount of first or second additive added to the vessel is sensed. The additive is discharged from the vessel into an additive feed tube through which the additive enters the crucible.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: November 15, 2022
    Assignee: GLOBALWAFERS CO., LTD.
    Inventors: Marco Zardoni, Giancarlo Zago, Giorgio Agostini, Stephan Haringer, James Eoff
  • ADDITIVE FEED SYSTEMS, INGOT PULLER APPARATUS AND METHODS FOR FORMING A SINGLE CRYSTAL SILICON INGOT WITH USE OF SUCH ADDITIVE FEED SYSTEMS
    Publication number: 20220205130
    Abstract: Additive feed systems for feeding at least two different additives to silicon disposed within a crucible of an ingot puller apparatus are disclosed. The additive feed system may include first and second feed trays which are caused to vibrate to move first or second additive from a canister in which the additive is stored to another vessel in which the amount of first or second additive added to the vessel is sensed. The additive is discharged from the vessel into an additive feed tube through which the additive enters the crucible.
    Type: Application
    Filed: December 30, 2020
    Publication date: June 30, 2022
    Inventors: Marco Zardoni, Giancarlo Zago, Giorgio Agostini, Stephan Haringer, James Eoff
  • Feed system for crystal pulling systems
    Patent number: 10968533
    Abstract: A system for growing silicon crystal structures includes a housing defining a growth chamber and a feed system connected to the housing for delivering silicon particles to the growth chamber. The feed system includes a container for holding the silicon particles. The container includes an outlet for discharging the silicon particles. The feed system also includes a channel connected to the outlet such that silicon particles discharged from the container flow through the channel. The feed system further includes a separation valve connected to the channel and to the housing. The separation valve is configured such that a portion of the feed system rotates relative to the housing.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: April 6, 2021
    Assignee: Corner Star Limited
    Inventors: Stephan Haringer, Gianni Dell'Amico, Giancarlo Zago, Renzo Odorizzi, Giorgio Agostini, Marco Zardoni
  • FEED SYSTEM FOR CRYSTAL PULLING SYSTEMS
    Publication number: 20170247809
    Abstract: A system for growing silicon crystal structures includes a housing defining a growth chamber and a feed system connected to the housing for delivering silicon particles to the growth chamber. The feed system includes a container for holding the silicon particles. The container includes an outlet for discharging the silicon particles. The feed system also includes a channel connected to the outlet such that silicon particles discharged from the container flow through the channel. The feed system further includes a separation valve connected to the channel and to the housing. The separation valve is configured such that a portion of the feed system rotates relative to the housing.
    Type: Application
    Filed: February 25, 2016
    Publication date: August 31, 2017
    Inventors: Stephan Haringer, Gianni Dell'Amico, Giancarlo Zago, Renzo Odorizzi, Giorgio Agostini, Marco Zardoni