Patents Assigned to Aehr Test Systems
  • Patent number: 12292484
    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 5, 2024
    Date of Patent: May 6, 2025
    Assignee: AEHR TEST SYSTEMS
    Inventors: Jovan Jovanovic, Kenneth W. Deboe, Steven C. Steps
  • Publication number: 20250138086
    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: December 30, 2024
    Publication date: May 1, 2025
    Applicant: AEHR TEST SYSTEMS
    Inventors: Gaylord Lewis Erickson, II, Jovan Jovanovic
  • Patent number: 12282062
    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 16, 2024
    Date of Patent: April 22, 2025
    Assignee: AEHR TEST SYSTEMS
    Inventors: Gaylord Lewis Erickson, II, Jovan Jovanovic
  • Patent number: 12265136
    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 5, 2024
    Date of Patent: April 1, 2025
    Assignee: AEHR TEST SYSTEMS
    Inventors: Jovan Jovanovic, Kenneth W. Deboe, Steven C. Steps
  • Publication number: 20250093400
    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 26, 2024
    Publication date: March 20, 2025
    Applicant: AEHR TEST SYSTEMS
    Inventors: Jovan Jovanovic, Kenneth W. Deboe, Steven C. Steps, Scott E. Lindsey
  • Publication number: 20250093399
    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 26, 2024
    Publication date: March 20, 2025
    Applicant: AEHR TEST SYSTEMS
    Inventors: Jovan Jovanovic, Kenneth W. Deboe, Steven C. Steps, Scott E. Lindsey
  • Publication number: 20250093398
    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 14, 2024
    Publication date: March 20, 2025
    Applicant: AEHR TEST SYSTEMS
    Inventors: Jovan Jovanovic, Kenneth W. Deboe, Steven C. Steps, Scott E. Lindsey
  • Patent number: 12253560
    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: September 11, 2024
    Date of Patent: March 18, 2025
    Assignee: AEHR TEST SYSTEMS
    Inventors: Gaylord Lewis Erickson, II, Jovan Jovanovic
  • Publication number: 20250085338
    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: November 22, 2024
    Publication date: March 13, 2025
    Applicant: AEHR TEST SYSTEMS
    Inventors: Scott E. Lindsey, Jovan Jovanovic, David S. Hendrickson, Donald P. Richmond, II
  • Publication number: 20250085337
    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: November 22, 2024
    Publication date: March 13, 2025
    Applicant: AEHR TEST SYSTEMS
    Inventors: Scott E. Lindsey, Jovan Jovanovic, David S. Hendrickson, Donald P. Richmond, II, II
  • Patent number: 12228609
    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 17, 2023
    Date of Patent: February 18, 2025
    Assignee: AEHR TEST SYSTEMS
    Inventors: Gaylord Lewis Erickson, II, Jovan Jovanovic
  • Publication number: 20250044348
    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 16, 2024
    Publication date: February 6, 2025
    Applicant: AEHR TEST SYSTEMS
    Inventors: Gaylord Lewis Erickson, II, Jovan Jovanovic
  • Publication number: 20250004042
    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: September 11, 2024
    Publication date: January 2, 2025
    Applicant: AEHR TEST SYSTEMS
    Inventors: Gaylord Lewis Erickson, II, Jovan Jovanovic
  • Publication number: 20240426938
    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: September 5, 2024
    Publication date: December 26, 2024
    Applicant: AEHR TEST SYSTEMS
    Inventors: Jovan Jovanovic, Kenneth W. Deboe, Steven C. Steps
  • Publication number: 20240426939
    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: September 5, 2024
    Publication date: December 26, 2024
    Applicant: AEHR TEST SYSTEMS
    Inventors: Jovan Jovanovic, Kenneth W. Deboe, Steven C. Steps
  • Patent number: 12169217
    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: October 12, 2023
    Date of Patent: December 17, 2024
    Assignee: AEHR TEST SYSTEMS
    Inventors: Jovan Jovanovic, Kenneth W. Deboe, Steven C. Steps, Scott E. Lindsey
  • Publication number: 20240410938
    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: August 6, 2024
    Publication date: December 12, 2024
    Applicant: AEHR TEST SYSTEMS
    Inventors: Scott E. Lindsey, Jovan Jovanovic, David S. Hendrickson, Donald P. Richmond, II
  • Patent number: 12163999
    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: November 29, 2023
    Date of Patent: December 10, 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
  • Publication number: 20240402243
    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: August 9, 2024
    Publication date: December 5, 2024
    Applicant: AEHR TEST SYSTEMS
    Inventors: Scott E. Lindsey, Jovan Jovanovic, David S. Hendrickson, Donald P. Richmond, II
  • Publication number: 20240393388
    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: August 6, 2024
    Publication date: November 28, 2024
    Applicant: AEHR TEST SYSTEMS
    Inventors: Scott E. Lindsey, Jovan Jovanovic, David S. Hendrickson, Donald P. Richmond, II