A semiconductor device tester and handler interface includes a tester mother board and a handler board. The handler board includes a central area adapted to mount multiple semiconductor devices to be tested by a tester. The tester mother board has a central area, and first and second peripheral...http://www.google.com/patents/US5705932?utm_source=gb-gplus-sharePatent US5705932 - System for expanding space provided by test computer to test multiple integrated circuits simultaneously 
