Patent ID: 6844717

Claim:
A test handler for transferring more than one semiconductor device to connect to a test head for testing the semiconductor devices and for classifying the semiconductor devices according to test results, the test handler comprising: a main body; a stocker, disposed within the main body, including a user tray supplier for loading a plurality of user trays including the semiconductor devices for the testing, and a user tray deliverer for loading the plurality of user trays carrying classified semiconductor device according to the test results; a plurality of test trays arranged according to a moving direction for testing the semiconductor devices; a device loading mechanism for transferring the semiconductor devices in a user tray of the user tray supplier to a test tray; a first tray inverter for changing a horizontal posture of a test tray carrying the semiconductor devices to a vertical direction; a soak chamber for preparing a desired test temperature condition while receiving sequentially the test tray postured vertically by the first tray inverter and for transferring the test tray to predetermined steps, and for discharging the test trays arranged in two vertical rows; a test chamber accomplishing electrical testing of the semiconductor devices in the two test trays discharged from the soak chamber, and for maintaining the test temperature condition; a de-soak chamber for restoring device temperature while arranging test trays discharged in two rows from the test chamber to a single row; a second tray inverter for inverting a test tray discharged in the vertical posture from the de-soak chamber to a horizontal posture; and a device unloading means capable of transferring the semiconductor devices on the test tray postured horizontally by the second tray inverter to multiple empty user trays after classifying the semiconductor devices according to the test results.