Patent ID: 8363924

Claim:
An electronic device testing apparatus for conducting a test of electric characteristics of an electronic device to be tested, comprising: a socket provided at a test section of the electronic device testing apparatus; a movable head member movably provided along an X-axis rail and a Y-axis rail; a first actuator moving the movable head member along the X-axis rail and the Y-axis rail; a contact arm member provided on the movable head member, holding and releasing the electronic device on an end portion thereof; a second actuator moving the movable head member or the contact arm member along a Z-axis direction; a controller controlling the first actuator and the second actuator for moving the electronic device to be tested to the socket, bringing the electronic device to be tested in electrical contact with the socket to conduct the test of electric characteristics of the electronic device to be tested, and then removing the electronic device from the socket; an image pickup device provided on the movable head member that takes an image of the socket; a memory device that stores reference image data of the socket in a state of being not placed with the electronic device to be tested obtained by taking images by the image pickup device; and a determination controller that obtains check image data of the socket by the image pickup device before moving the electronic device to be tested to the socket, reads the reference image data from the memory device, compares the check image data with the reference image data and determines whether the electronic device to be tested has been removed from the socket; and an alarm device that promotes awareness of an unremoved electronic device when the determination controller determines that the electronic device to be tested has not been removed from the socket.