Patent ID: 7741836
Filing Date: 2010-06-22
Classification: G01R

Abstract:
1. 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: