Hot Testing of Semiconductor Devices

摘要

A testing apparatus for testing of integrated circuit devices at elevated temperatures comprises hot belt 111 is operable to transport integrated circuits from a main production line into a hot chamber 121 and thence onto a test area 122 within the hot chamber 121 and a cold belt 112 operable to receive integrated circuits from the test area 122 and transport them back to the main production line. Both the hot and cold belts 111, 112 are indexed stepwise, the indexing distance being equal to the separation of the pockets provided for receiving integrated circuits. In the test area 122 are four vacuum chucks 131a-131d each operable to pick an integrated circuit from adjacent pockets on the hot belt 111 and place it on corresponding test heads 133a-133d (via a corresponding repositioning means 132a-132d) for diagnostic testing at an elevated temperature. After testing, the vacuum chucks 131a-131d are operable to pick the integrated circuits from the corresponding test heads 133a-133d and place them in adjacent pockets on the cold belt 112.