Patent ID: 11867749
Assignee: TERADYNE, INC.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 30:
31. A test system comprising:
a strobe light
test sites comprising sockets for testing devices under test (DUTs);
pickers for picking DUTs from the sockets or placing the DUTs in the sockets;
a gantry on which the pickers are mounted, the gantry being configured to move the pickers relative to the sockets to position the pickers for picking the DUTs from the sockets or placing the DUTs into the sockets;
a camera configured to face towards a DUT held by a picker controlled to place the DUT in a socket at a test site, the camera being configured to capture an image of the picker holding the DUT prior to placement of the DUT in the socket; and
a control system to control operation of the gantry to reduce a speed of the picker as the picker approaches the camera, to control operation of the strobe light and the camera to capture an image of the picker holding the DUT prior to placement of the DUT in the socket, and to use the image to determine a position and an orientation of the DUT relative to the socket;
wherein controlling the strobe light and the camera comprises causing the strobe light to illuminate at a time that the camera is controlled to capture the image.