Patent ID: 8013620

Claim:
A test handler, comprising: a loading unit for loading semiconductor devices of user trays onto a test tray; a test chamber in which a tester tests the semiconductor devices loaded on the test tray by the loading unit; and an unloading unit for unloading the semiconductor devices tested in the test chamber from the test tray onto user trays, wherein the loading unit includes: at least one moving type loading table, movable between a first region and a second region, having device-settling cells; a first picking apparatus movable in the first region to transfer and load the semiconductor devices from the user trays to the device-settling cells of the moving type loading table positioned in the first region, wherein an adjusted pitch of the first picking apparatus in a first direction is substantially the same as the pitch of the test tray in the first direction and a fixed pitch of the first picking apparatus in a second direction is the same as the pitch of the user tray in the second direction; and a second picking apparatus movable in the second region to transfer and load the semiconductor devices from the device-settling cells of the moving type loading table positioned in the second region to the test tray, wherein an adjusted pitch of the second picking apparatus in the second direction is substantially the same as the pitch of the test tray in the second direction and a pitch of the second picking apparatus in the first direction is fixed, further wherein a pitch of the test tray is wider in the second direction than the pitch of the device-settling cells in the second direction, and further wherein the first picking apparatus adjusts a pitch in the first direction during movement for adjusting a pitch of the first direction which is substantially the same as the pitch of the test tray in the first direction, the second picking apparatus adjusts a pitch in the second direction during movement for adjusting a pitch of the second direction which is substantially the same as the pitch of the test tray in the second direction, the pitch of the loading table is substantially the same as the pitch of the test tray in the first direction for loading the semiconductor devices whose pitch is changed by the first picking apparatus, and the loading table does not move for adjusting the pitch.