Patents by Inventor Elyakim Kassel

Elyakim Kassel 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: 10600635
    Abstract: A method for fabricating a cost-effective semiconductor on higher-thermal conductive multilayer (ML) composite wafer, the method comprising the steps of: taking a semiconductor host wafer having a first and a second host wafer surface and preparing the first host wafer surface; growing a transitional layer (TL) having properties of limiting diffusion on the host wafer first surface; depositing a uniform and low-defect additional layer (AL) on the TL; polishing the TL to prepare for bonding; taking a sacrificial semiconductor wafer, having a first and second sacrificial wafer surface, and bonding the first sacrificial wafer surface to the TL at room temperature; removing the sacrificial wafer from the TL and recycling the sacrificial wafer for future use; and grinding and polishing the first host wafer surface; whereby the resultant first host wafer surface becomes a starting surface of the ML composite wafer for device manufacturing.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: March 24, 2020
    Inventor: Elyakim Kassel
  • Publication number: 20180308682
    Abstract: A method for fabricating a cost-effective semiconductor on higher-thermal conductive multilayer (ML) composite wafer, the method comprising the steps of: taking a semiconductor host wafer having a first and a second host wafer surface and preparing the first host wafer surface; growing a transitional layer (TL) having properties of limiting diffusion on the host wafer first surface; depositing a uniform and low-defect additional layer (AL) on the TL; polishing the TL to prepare for bonding; taking a sacrificial semiconductor wafer, having a first and second sacrificial wafer surface, and bonding the first sacrificial wafer surface to the TL at room temperature; removing the sacrificial wafer from the TL and recycling the sacrificial wafer for future use; and grinding and polishing the first host wafer surface; whereby the resultant first host wafer surface becomes a starting surface of the ML composite wafer for device manufacturing.
    Type: Application
    Filed: April 19, 2018
    Publication date: October 25, 2018
    Applicant: Diamond Valley Ltd.
    Inventor: Elyakim KASSEL
  • Patent number: 7925486
    Abstract: Computer-implemented methods, carrier media, and systems for creating a metrology target structure design for a reticle layout are provided. One computer-implemented method for creating a metrology target structure design for a reticle layout includes simulating how one or more initial metrology target structures will be formed on a wafer based on one or more fabrication processes that will be used to form a metrology target structure on the wafer and one or more initial metrology target structure designs. The method also includes creating the metrology target structure design based on results of the simulating step.
    Type: Grant
    Filed: March 13, 2007
    Date of Patent: April 12, 2011
    Assignee: KLA-Tencor Technologies Corp.
    Inventors: Mark Smith, Robert Hardister, Mike Pochkowski, Amir Widmann, Elyakim Kassel, Mike Adel
  • Patent number: 7804994
    Abstract: An overlay method for determining the overlay error of a device structure formed during semiconductor processing is disclosed. The overlay method includes producing calibration data that contains overlay information relating the overlay error of a first target at a first location to the overlay error of a second target at a second location for a given set of process conditions. The overlay method also includes producing production data that contains overlay information associated with a production target formed with the device structure. The overlay method further includes correcting the overlay error of the production target based on the calibration data.
    Type: Grant
    Filed: February 13, 2003
    Date of Patent: September 28, 2010
    Assignee: KLA-Tencor Technologies Corporation
    Inventors: Michael Adel, Mark Ghinovker, Elyakim Kassel, Boris Golovanevsky, John C. Robinson, Chris A. Mack, Jorge Poplawski, Pavel Izikson, Moshe Preil
  • Patent number: 7671990
    Abstract: The present invention is directed to novel metrology marks and methods for their use. The marks comprise cross hashed overlay metrology marks formed on a substrate including a plurality of target regions. The mark including a first grating structure formed in one layer of a target region and including a second grating structure formed in another layer of the target region. The periodic features of the first and second grating structures are oriented substantially orthogonal one another to form a cross-hatched metrology target in the target region. Additionally, the patent discloses methods of employing the metrology marks to obtain overlay metrology measurements.
    Type: Grant
    Filed: June 6, 2007
    Date of Patent: March 2, 2010
    Assignee: KLA-Tencor Technologies Corporation
    Inventors: Michael E. Adel, Vladimir Levinski, Elyakim Kassel
  • Publication number: 20070276634
    Abstract: Computer-implemented methods, carrier media, and systems for creating a metrology target structure design for a reticle layout are provided. One computer-implemented method for creating a metrology target structure design for a reticle layout includes simulating how one or more initial metrology target structures will be formed on a wafer based on one or more fabrication processes that will be used to form a metrology target structure on the wafer and one or more initial metrology target structure designs. The method also includes creating the metrology target structure design based on results of the simulating step.
    Type: Application
    Filed: March 13, 2007
    Publication date: November 29, 2007
    Inventors: Mark Smith, Robert Hardister, Mike Pochkowski, Amir Widmann, Elyakim Kassel, Mike Adel
  • Publication number: 20030223630
    Abstract: An overlay method for determining the overlay error of a device structure formed during semiconductor processing is disclosed. The overlay method includes producing calibration data that contains overlay information relating the overlay error of a first target at a first location to the overlay error of a second target at a second location for a given set of process conditions. The overlay method also includes producing production data that contains overlay information associated with a production target formed with the device structure. The overlay method further includes correcting the overlay error of the production target based on the calibration data.
    Type: Application
    Filed: February 13, 2003
    Publication date: December 4, 2003
    Applicant: KLA-Tencor Corporation
    Inventors: Michael Adel, Mark Ghinovker, Elyakim Kassel, Boris Golovanevsky, John C. Robinson, Chris A. Mack, Jorge Poplawski, Pavel Izikson, Moshe Preil