Patents by Inventor Jovan Jovanovic

Jovan Jovanovic 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: 20240103068
    Abstract: An apparatus is described for burn-in and/or functional testing of microelectronic circuits of unsingulated wafers. A large number of power, ground, and signal connections can be made to a large number of contacts on a wafer. The apparatus has a cartridge that allows for fanning-in of electric paths. A distribution board has a plurality of interfaces that are strategically positioned to provide a dense configuration. The interfaces are connected through flexible attachments to an array of first connector modules. Each one of the first connector modules can be independently connected to a respective one of a plurality of second connector modules, thereby reducing stresses on a frame of the apparatus. Further features include for example a piston that allows for tight control of forces exerted by terminals onto contacts of a wafer.
    Type: Application
    Filed: November 29, 2023
    Publication date: March 28, 2024
    Applicant: AEHR TEST SYSTEMS
    Inventors: Donald P. Richmond, II, Kenneth W. Deboe, Frank O. Uher, Jovan Jovanovic, Scott E. Lindsey, Thomas T. Maenner, Patrick M. Shepherd, Jeffrey L. Tyson, Mark C. Carbone, Paul W. Burke, Doan D. Cao, James F. Tomic, Long V. Vu
  • Publication number: 20240044971
    Abstract: A tester apparatus is described. Various components contribute to the functionality of the tester apparatus to facilitate movement of a wafer pack holding a vacuum without human oversight. These functionalities include a latch system to keep the wafer pack intact and a pressure sensing system to detect and relay a pressure in the wafer pack.
    Type: Application
    Filed: October 17, 2023
    Publication date: February 8, 2024
    Applicant: AEHR TEST SYSTEMS
    Inventors: Gaylord Lewis Erickson, II, Jovan Jovanovic
  • Publication number: 20240036103
    Abstract: A tester apparatus is described. Various components contribute to the functionality of the tester apparatus, including an insertion and removal apparatus, thermal posts, independent gimbaling, the inclusion of a photo detector, a combination of thermal control methods, a detect circuitry in a socket lid, through posts with stand-offs, and a voltage retargeting.
    Type: Application
    Filed: October 12, 2023
    Publication date: February 1, 2024
    Applicant: Aehr Test Systems
    Inventors: Jovan Jovanovic, Kenneth W. Deboe, Steven C. Steps, Scott E. Lindsey
  • Patent number: 11860221
    Abstract: An apparatus is described for burn-in and/or functional testing of microelectronic circuits of unsingulated wafers. A large number of power, ground, and signal connections can be made to a large number of contacts on a wafer. The apparatus has a cartridge that allows for fanning-in of electric paths. A distribution board has a plurality of interfaces that are strategically positioned to provide a dense configuration. The interfaces are connected through flexible attachments to an array of first connector modules. Each one of the first connector modules can be independently connected to a respective one of a plurality of second connector modules, thereby reducing stresses on a frame of the apparatus. Further features include for example a piston that allows for tight control of forces exerted by terminals onto contacts of a wafer.
    Type: Grant
    Filed: January 12, 2022
    Date of Patent: January 2, 2024
    Assignee: AEHR TEST SYSTEMS
    Inventors: Donald P. Richmond, II, Kenneth W. Deboe, Frank O. Uher, Jovan Jovanovic, Scott E. Lindsey, Thomas T. Maenner, Patrick M. Shepherd, Jeffrey L. Tyson, Mark C. Carbone, Paul W. Burke, Doan D. Cao, James F. Tomic, Long V. Vu
  • Patent number: 11835575
    Abstract: A tester apparatus is described. Various components contribute to the functionality of the tester apparatus to facilitate movement of a wafer pack holding a vacuum without human oversight. These functionalities include a latch system to keep the wafer pack intact and a pressure sensing system to detect and relay a pressure in the wafer pack.
    Type: Grant
    Filed: October 5, 2021
    Date of Patent: December 5, 2023
    Assignee: AEHR TEST SYSTEMS
    Inventors: Gaylord Lewis Erickson, II, Jovan Jovanovic
  • Patent number: 11821940
    Abstract: A tester apparatus is described. Various components contribute to the functionality of the tester apparatus, including an insertion and removal apparatus, thermal posts, independent gimbaling, the inclusion of a photo detector, a combination of thermal control methods, a detect circuitry in a socket lid, through posts with stand-offs, and a voltage retargeting.
    Type: Grant
    Filed: March 1, 2023
    Date of Patent: November 21, 2023
    Assignee: AEHR TEST SYSTEMS
    Inventors: Jovan Jovanovic, Kenneth W. Deboe, Steven C. Steps, Scott E. Lindsey
  • Publication number: 20230204651
    Abstract: A tester apparatus is described. Various components contribute to the functionality of the tester apparatus, including an insertion and removal apparatus, thermal posts, independent gimbaling, the inclusion of a photo detector, a combination of thermal control methods, a detect circuitry in a socket lid, through posts with stand-offs, and a voltage retargeting.
    Type: Application
    Filed: March 1, 2023
    Publication date: June 29, 2023
    Applicant: AEHR TEST SYSTEMS
    Inventors: Jovan Jovanovic, Kenneth W. Deboe, Steven C. Steps, Scott E. Lindsey
  • Publication number: 20230168277
    Abstract: A method of testing an integrated circuit of a device is described. Air is allowed through a fluid line to modify a size of a volume defined between the first and second components of an actuator to move a contactor support structure relative to the apparatus and urge terminals on the contactor support structure against contacts on the device. Air is automatically released from the fluid line through a pressure relief valve when a pressure of the air in the fluid line reaches a predetermined value. The holder is moved relative to the apparatus frame to disengage the terminals from the contacts while maintaining the first and second components of the actuator in a substantially stationary relationship with one another. A connecting arrangement is provided including first and second connecting pieces with complementary interengaging formations that restricts movement of the contactor substrate relative to the distribution board substrate in a tangential direction.
    Type: Application
    Filed: January 26, 2023
    Publication date: June 1, 2023
    Applicant: AEHR TEST SYSTEMS
    Inventors: Scott E. Lindsey, Junjye Yeh, Jovan Jovanovic, Seang P. Malathong
  • Patent number: 11635459
    Abstract: A tester apparatus is described. Various components contribute to the functionality of the tester apparatus, including an insertion and removal apparatus, thermal posts, independent gimbaling, the inclusion of a photo detector, a combination of thermal control methods, a detect circuitry in a socket lid, through posts with stand-offs, and a voltage retargeting.
    Type: Grant
    Filed: November 10, 2021
    Date of Patent: April 25, 2023
    Assignee: AEHR TEST SYSTEMS
    Inventors: Jovan Jovanovic, Kenneth W. Deboe, Steven C. Steps, Scott E. Lindsey
  • Patent number: 11592465
    Abstract: A method of testing an integrated circuit of a device is described. Air is allowed through a fluid line to modify a size of a volume defined between the first and second components of an actuator to move a contactor support structure relative to the apparatus and urge terminals on the contactor support structure against contacts on the device. Air is automatically released from the fluid line through a pressure relief valve when a pressure of the air in the fluid line reaches a predetermined value. The holder is moved relative to the apparatus frame to disengage the terminals from the contacts while maintaining the first and second components of the actuator in a substantially stationary relationship with one another. A connecting arrangement is provided including first and second connecting pieces with complementary interengaging formations that restricts movement of the contactor substrate relative to the distribution board substrate in a tangential direction.
    Type: Grant
    Filed: August 2, 2021
    Date of Patent: February 28, 2023
    Assignee: AEHR TEST SYSTEMS
    Inventors: Scott E. Lindsey, Junjye Yeh, Jovan Jovanovic, Seang P. Malathong
  • Publication number: 20220373595
    Abstract: A cartridge, including a cartridge frame, formations on the cartridge frame for mounting the cartridge frame in a fixed position to an apparatus frame, a contactor support structure, a contactor interface on the contactor support structure, a plurality of terminals, held by the contactor support structure, for contacting contacts on a device, and a plurality of conductors, held by the contactor support structure, connecting the interface to the terminals.
    Type: Application
    Filed: July 18, 2022
    Publication date: November 24, 2022
    Applicant: AEHR TEST SYSTEMS
    Inventors: Scott E. Lindsey, Jovan Jovanovic, David S. Hendrickson, Donald P. Richmond, II
  • Patent number: 11448695
    Abstract: A cartridge, including a cartridge frame, formations on the cartridge frame for mounting the cartridge frame in a fixed position to an apparatus frame, a contactor support structure, a contactor interface on the contactor support structure, a plurality of terminals, held by the contactor support structure, for contacting contacts on a device, and a plurality of conductors, held by the contactor support structure, connecting the interface to the terminals.
    Type: Grant
    Filed: April 23, 2020
    Date of Patent: September 20, 2022
    Assignee: Aehr Test Systems
    Inventors: Scott E. Lindsey, Jovan Jovanovic, David S. Hendrickson, Donald P. Richmond, II
  • Publication number: 20220137121
    Abstract: An apparatus is described for burn-in and/or functional testing of microelectronic circuits of unsingulated wafers. A large number of power, ground, and signal connections can be made to a large number of contacts on a wafer. The apparatus has a cartridge that allows for fanning-in of electric paths. A distribution board has a plurality of interfaces that are strategically positioned to provide a dense configuration. The interfaces are connected through flexible attachments to an array of first connector modules. Each one of the first connector modules can be independently connected to a respective one of a plurality of second connector modules, thereby reducing stresses on a frame of the apparatus. Further features include for example a piston that allows for tight control of forces exerted by terminals onto contacts of a wafer.
    Type: Application
    Filed: January 12, 2022
    Publication date: May 5, 2022
    Applicant: AEHR TEST SYSTEMS
    Inventors: Donald P. Richmond, II, Kenneth W. Deboe, Frank O. Uher, Jovan Jovanovic, Scott E. Lindsey, Thomas T. Maenner, Patrick M. Shepherd, Jeffrey L. Tyson, Mark C. Carbone, Paul W. Burke, Doan D. Cao, James F. Tomic, Long V. Vu
  • Publication number: 20220107358
    Abstract: A tester apparatus is described. Various components contribute to the functionality of the tester apparatus to facilitate movement of a wafer pack holding a vacuum without human oversight. These functionalities include a latch system to keep the wafer pack intact and a pressure sensing system to detect and relay a pressure in the wafer pack.
    Type: Application
    Filed: October 5, 2021
    Publication date: April 7, 2022
    Applicant: AEHR TEST SYSTEMS
    Inventors: Gaylord Lewis Erickson, II, Jovan Jovanovic
  • Publication number: 20220082636
    Abstract: A tester apparatus is provided. Slot assemblies are removably mounted to a frame. Each slot assembly allows for individual heating and temperature control of a respective cartridge that is inserted into the slot assembly. A closed loop air path is defined by the frame and a heater and cooler are located in the closed loop air path to cool or heat the cartridge with air. Individual cartridges can be inserted or be removed while other cartridges are in various stages of being tested or in various stages of temperature ramps.
    Type: Application
    Filed: November 22, 2021
    Publication date: March 17, 2022
    Applicant: AEHR TEST SYSTEMS
    Inventors: Jovan Jovanovic, Kenneth W. Deboe, Steven C. Steps
  • Publication number: 20220065921
    Abstract: A tester apparatus is described. Various components contribute to the functionality of the tester apparatus, including an insertion and removal apparatus, thermal posts, independent gimbaling, the inclusion of a photo detector, a combination of thermal control methods, a detect circuitry in a socket lid, through posts with stand-offs, and a voltage retargeting.
    Type: Application
    Filed: November 10, 2021
    Publication date: March 3, 2022
    Applicant: AEHR TEST SYSTEMS
    Inventors: Jovan Jovanovic, Kenneth W. Deboe, Steven C. Steps, Scott E. Lindsey
  • Patent number: 11255903
    Abstract: An apparatus is described for burn-in and/or functional testing of microelectronic circuits of unsingulated wafers. A large number of power, ground, and signal connections can be made to a large number of contacts on a wafer. The apparatus has a cartridge that allows for fanning-in of electric paths. A distribution board has a plurality of interfaces that are strategically positioned to provide a dense configuration. The interfaces are connected through flexible attachments to an array of first connector modules. Each one of the first connector modules can be independently connected to a respective one of a plurality of second connector modules, thereby reducing stresses on a frame of the apparatus. Further features include for example a piston that allows for tight control of forces exerted by terminals onto contacts of a wafer.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: February 22, 2022
    Assignee: Aehr Test Systems
    Inventors: Donald P. Richmond, II, Kenneth W. Deboe, Frank O. Uher, Jovan Jovanovic, Scott E. Lindsey, Thomas T. Maenner, Patrick M. Shepherd, Jeffrey L. Tyson, Mark C. Carbone, Paul W. Burke, Doan D. Cao, James F. Tomic, Long V. Vu
  • Patent number: 11209497
    Abstract: A tester apparatus is provided. Slot assemblies are removably mounted to a frame. Each slot assembly allows for individual heating and temperature control of a respective cartridge that is inserted into the slot assembly. A closed loop air path is defined by the frame and a heater and cooler are located in the closed loop air path to cool or heat the cartridge with air. Individual cartridges can be inserted or be removed while other cartridges are in various stages of being tested or in various stages of temperature ramps.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: December 28, 2021
    Assignee: Aehr Test Systems
    Inventors: Jovan Jovanovic, Kenneth W. Deboe, Steven C. Steps
  • Patent number: 11199572
    Abstract: A tester apparatus is described. Various components contribute to the functionality of the tester apparatus, including an insertion and removal apparatus, thermal posts, independent gimbaling, the inclusion of a photo detector, a combination of thermal control methods, a detect circuitry in a socket lid, through posts with stand-offs, and a voltage retargeting.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: December 14, 2021
    Assignee: Aehr Test Systems
    Inventors: Jovan Jovanovic, Kenneth W. Deboe, Steven C. Steps, Scott E. Lindsey
  • Publication number: 20210375469
    Abstract: A non-transitory computer readable storage medium has instructions executed by a processor to prompt a user for personal information. The user is prompted to take a self-image. The user is prompted to take an image of a user identification card. Correspondence between the self-image and a user identification card image is validated. The user record is finalized. Health test results are obtained. A digital health certificate is created if the health test results are verified. A user image from on premise location is received. Health certification criteria for the user is applied to alternately establish a criteria met state and a criteria fail state. Premise access denied messages are sent in response to the criteria fail state. A safety certification is supplied in response to the criteria met state.
    Type: Application
    Filed: May 27, 2021
    Publication date: December 2, 2021
    Inventors: Ricardo AMPER, Jesús RUIZ, Jovan JOVANOVIC, Sonja KESIC, Alexey GOLUNOV, Nikola ZIVANOVIC