An apparatus and method for the rapid switchover between different height modules in an automatic module testing and handling machine. The multi-chip module (MCM) handling apparatus comprises a bottom rail and a guide rail which has an upwardly extending wall and an outwardly extending flange which form...http://www.google.de/patents/US5667077?utm_source=gb-gplus-sharePatent US5667077 - Module handling apparatus and method with rapid switchover capability