Abstract: The invention provides a device transfer system capable of lessening swaying of a movable body (handler), and simplifying the indexing mechanism. The device transfer system comprises a transfer means for transferring a device under test, held by a contact head, a test site for testing electrical characteristics of the device under test, and an indexing means for intermittently shifting the device under test, placed on a device tray, wherein the transfer means are made up such that two contact heads are concurrently and horizontally shifted in respective directions opposite to each other.

Abstract: Stress is applied to a TCP tape during the travel of the TCP tape. The handler for TCPs for sequentially intermittently traveling a TCP tape comprises a plurality of continuously connected TCPs in a shape of a tape so as to move a measuring part provided in the midway of a traveling route of the TCP tape in a direction perpendicular to a surface of the TCP tape for allowing each semiconductor chip on each TCP to sequentially contact an opposed probe card to connect thereto, wherein flexure parts are formed on the TCP tape forward and backward of the measuring part in the traveling direction of the TCP tape, and the TCP tape is traveled by sprockets disposed forward and backward of the flexure parts in the traveling direction of the TCP tape.

Abstract: In a horizontal conveyance type auto-handler, the operation of a carrier is stopped when a positional displacement of the carrier relative to a test board is detected. A shaft is provided on a center of a guide pin on the test board. When the carrier which is displaced relative to the test board is lowered, the shaft is pushed down by the carrier, and the lowering of the shaft is detected by an optical sensor, thereby stopping the lowering operation of the carrier.