Patent ID: 6354792
Filing Date: 2002-03-12
Classification: G01R,H01L,Y10S

Abstract:
A tray storage device mounting apparatus adapted to be used in an IC transporting and handling system for transporting semiconductor devices from a loader section to a test section to test them through said test section and transporting the tested semiconductor devices from said test section to an unloader section where the tested semiconductor devices are sorted on the basis of the test results, said tray storage device mounting apparatus comprising:a tray storage device having an opening in a bottom thereof and storing on the bottom a plurality of semiconductor device storing trays in a vertically stacked state to each other; a generally rectangular pedestal of a frame structure with an opening for receiving thereon said tray storage device and having a somewhat larger size than the bottom of said tray storage device both said openings of said tray storage device and said pedestal being vertically aligned to each other when said tray storage device is loaded on said pedestal; vertically movable means movable through both said openings of said pedestal and said tray storage device for vertically lifting up and down said vertically stacked trays stored in said tray storage device; positioning means provided on said mounting apparatus for positioning the tray storage device at a predetermined position within said mounting apparatus by engaging with engagement means provided on the tray storage device; and tray transfer means provided above the tray storage device within the tray storage device mounting apparatus for gripping and transferring an uppermost one of the vertically stacked trays which are lifted up by said vertically movable means in the tray storage device.