Patent ID: 7741836

Claim:
A test tray transferring apparatus for a test handler comprising: a first gripping block provided to move in a circulation direction of a predetermined circulation path while gripping or releasing a front test tray of two test trays to be circulated along the predetermined circulation path; a second gripping block spaced apart from the first gripping block and provided to move in the circulation direction of the predetermined circulation path while gripping or releasing a rear test tray of the two test trays; a gripping block actuating device for actuating the first gripping block and the second gripping block to grip and release the two test trays; a gripping block transferring device for transferring the first gripping block and the second gripping block together along the circulation path; and a vertical transferring device for transferring the first gripping block and the second gripping block in a direction perpendicular to the predetermined circulation path; wherein the vertical transferring device includes: a first vertical transfer for transferring the first gripping block in the direction perpendicular to the predetermined circulation path, and a second vertical transfer for transferring the second gripping block in the direction perpendicular to the predetermined circulation path independently from the first vertical transfer.