Patent ID: 7567076

Claim:
Apparatus for burn-in testing of packaged semiconductor devices comprising: a carrier for supporting a plurality of boards and semiconductor devices mounted thereon in a stacked array; a Load/Unload Station for inserting packaged semiconductor devices sequentially into boards placed in the carrier; an oven for receiving a carrier with stacked boards and performing burn-in tests, the oven including electrical connectors for engaging boards for electrical testing, and a mechanism for engaging the boards and sliding the boards into engagement with connector of the oven; and a trolley for abutting the Load/Unload Station and receiving a carrier with stacked boards and abutting the oven for delivering the carrier and stacked boards, the trolley has an elevator for placing a plurality of carriers in a stack in the oven, the trolley includes a physical alignment mechanism for use in horizontally aligning the trolley with a Load/Unload Station and an oven, and the carrier includes an optical alignment mechanism for use in vertically aligning the carrier with the oven and the Load/Unload Station.