Abstract: A method and apparatus for aligning a device with a contactor is provided. The apparatus includes a pick and place device, for transporting the device. A first camera acquires an image of the device relative to device holder fiducials of the pick and place device. A second camera detects the location of the contactor relative to fiducials positioned on an alignment frame plate. A third camera to image frame and device holder fiducials to correlate the first and second camera coordinates. Given a processor determines the alignment difference between the device and the contactor. A plurality of actuators align the device with the contactor.

Abstract: A vision alignment system and method is provided. The vision alignment system includes one or more grouped alignment plates with guiding inserts configured to receive multiple devices, and groups of three actuators, configured to actuate the alignment plates to correct the position offsets of multiple devices as a group. The position offsets between the device and contactor are determined by a device-view camera during runtime and a contactor-view camera during calibration time. The vision alignment system also includes a pick-and-place handler, configured to transport devices.

Abstract: A method and apparatus for aligning a device with a contactor is provided. The apparatus includes a pick and place device, for transporting the device. A first camera acquires an image of the device relative to device holder fiducials of the pick and place device. A second camera detects the location of the contactor relative to fiducials positioned on an alignment frame plate. A third camera to image frame and device holder fiducials to correlate the first and second camera coordinates. Given a processor determines the alignment difference between the device and the contactor. A plurality of actuators align the device with the contactor.

Abstract: A vision alignment system and method is provided. The vision alignment system includes one or more grouped alignment plates with guiding inserts configured to receive multiple devices, and groups of three actuators, configured to actuate the alignment plates to correct the position offsets of multiple devices as a group. The position offsets between the device and contactor are determined by a device-view camera during runtime and a contactor-view camera during calibration time. The vision alignment system also includes a pick-and-place handler, configured to transport devices.

Abstract: A guiding plate based vision alignment system for a test handler includes cameras, configured to view the position difference between a tested device and the corresponding contactor. A pick-and-place handler is configured to move the device. A guiding plate is configured to actuate guiding plate with one translation alignment feature and one rotation alignment feature to correct the position offset between the tested device and the corresponding contactor.

Abstract: An apparatus is provided to cool high-performance instruments within a semiconductor test head using direct facility water. The direct facility water cooling apparatus consists of an air chamber, a first base to receive and removably mount the instrument within the air chamber, a test head inlet in fluid communication with the first base and a facility water supply, a test head discharge in fluid communication with the first base and a facility drain, and a fan in fluid communication with the air chamber inlet to induce the flow of air from the air chamber inlet to the air chamber outlet.

Abstract: A novel flexural mount kinematic coupling apparatus and technique in which a pair of surfaces is deterministically kinematically coupled with repeatable accuracy of positioning with respect to one another and an intermediate plane between, and with guided compliance provided by flexural, rolling or sliding bearing elements to permit translational clamping in a direction normal to the plane that brings the surfaces into contact without positional error motions between the surfaces.