SMALL-SIZED FAST COLD AND HOT SHOCK TEST DEVICES

    公开(公告)号:US20240361378A1

    公开(公告)日:2024-10-31

    申请号:US18765323

    申请日:2024-07-07

    发明人: Dongxi LIU

    IPC分类号: G01R31/28

    摘要: A small-sized fast cold and hot shock test device is provided. The device includes a host, a test head used for cold and hot shock to a component under test by temperature control and output of compressed air, and an adjustment device for adjusting a position of the test head. The host includes a control device at least used to send temperature control data to the test head. The test head includes an eddy current mechanism for cooling or heating the compressed air, a heater including an air inlet end and an air outlet end, and a nozzle. The eddy current mechanism includes an air inlet, a cold air outlet, and a hot air outlet. The air inlet is connected with an air supply system through an intake air line unit. The cool air outlet is connected with the air inlet end of the heater.

    Test socket having an automated lid

    公开(公告)号:US12007411B2

    公开(公告)日:2024-06-11

    申请号:US17354444

    申请日:2021-06-22

    申请人: Teradyne, Inc.

    IPC分类号: G01R31/28 G01R1/04

    摘要: An example test socket for a test system includes a receptacle to make electrical and mechanical connections to a device under test (DUT) and a lid to cover the DUT in the receptacle. The lid is controllable to open automatically to enable receipt of the DUT in the receptacle and, following receipt of the DUT, to close automatically to cover the DUT in the receptacle. Closing the lid applies force to the DUT to complete the electrical and mechanical connections between the test socket and the DUT.

    SMALL-SIZED FAST COLD AND HOT SHOCK TEST DEVICES

    公开(公告)号:US20240142514A1

    公开(公告)日:2024-05-02

    申请号:US18534693

    申请日:2023-12-10

    发明人: Dongxi LIU

    IPC分类号: G01R31/28

    摘要: The present disclosure provides an small-sized fast cold and hot shock test device. The device includes a host, a test head used for cold and hot shock to a component under test by temperature control and output of compressed air, and an adjustment device for adjusting a position of the test head. The host includes a control device at least used to send temperature control data to the test head. The test head includes an eddy current mechanism for cooling or heating the compressed air, a heater including an air inlet end and an air outlet end, and a nozzle. The eddy current mechanism includes an air inlet, a cold air outlet, and a hot air outlet. The air inlet is connected with an air supply system through an intake air line unit. The cool air outlet is connected with the air inlet end of the heater. The nozzle is connected with the air outlet end of the heater.

    BURN-IN SYSTEM WITH MULTIPLE PLUGS ON THE TEST BOARD

    公开(公告)号:US20240003966A1

    公开(公告)日:2024-01-04

    申请号:US18203074

    申请日:2023-05-30

    IPC分类号: G01R31/28

    摘要: Disclosed herein is a burn-in system with a plurality of plugs on test boards, including: a main body (100) which has a test chamber (200) with an open front side; a plurality of test boards (40) on which a plurality of semiconductor chips (90) are mounted and which is mounted in the test chamber (200); a main board which tests the semiconductor chips by exchanging signals with the plurality of semiconductor chips; a door (540) which is provided on the main body (100) to open and close the test chamber (200); and a temperature control means provided inside the main body (100) to heat and cool the test boards (40) mounted inside the test chamber (200).

    ELECTRONIC COMPONENT HANDLING APPARATUS, ELECTRONIC COMPONENT TESTING APPARATUS, ELECTRONIC COMPONENT TESTING

    公开(公告)号:US20230417826A1

    公开(公告)日:2023-12-28

    申请号:US18036821

    申请日:2020-11-30

    IPC分类号: G01R31/28 G01R35/00

    摘要: An electronic component handling apparatus pressing the DUT against a socket electrically connected to a tester, includes: a first receiver that receives, from the tester, a first signal indicating a detection value of a temperature detection circuit; a calculator that calculates a temperature of the DUT based on the first signal; a calibrator that calibrates the calculated temperature; a second receiver that receives, from the tester, a second signal that causes the calibrator to start a first calibration; and a temperature adjuster that adjusts the temperature of the DUT. The second receiver receives the second signal before the tester turns on the DUT, once the second signal is received, the calibrator calculates a first calibrated temperature by executing the first calibration with respect to the calculated temperature, and the temperature adjuster adjusts the temperature of the DUT based on the first calibrated temperature.

    Thermal head for independent control of zones

    公开(公告)号:US11796589B1

    公开(公告)日:2023-10-24

    申请号:US17971505

    申请日:2022-10-21

    申请人: AEM Holdings Ltd.

    IPC分类号: G01R31/28 H05B1/02

    摘要: Disclosed herein are thermal heads and corresponding test systems for independently controlling a one or more components while testing one or more devices under test. In some embodiments, a thermal head comprises a plurality of adapters, one or more heaters, and one or more thermal controllers for independently controlling temperatures of the components. The thermal controllers may control the temperatures of at least some of the components independently such that thermal control of one component does not affect the thermal control of the other component. In some embodiments, the thermal control is by way of one or more cold plates, and the thermal head comprises one or more cold plates. Embodiments of the disclosure further include independent control of one or more forces using one or more force mechanisms.