Patent ID: 7259548

Claim:
An apparatus for testing circuits on substrates comprising: a support frame; a transfer apparatus capable of holding at least one of a plurality of separate substrates; a test chuck located on the frame, having a surface with a plurality of raised formations alternated by a plurality of recesses, and being movable relative to the transfer apparatus so that surfaces of each raised formation move into contact with a respective substrate, the substrates being simultaneously securable to the test chuck, each substrate to a respective surface of a respective raised formation, the test chuck being movable relative to the transfer chuck so that the substrates move off the transfer chuck; a plurality of contacts secured to the support frame, the test chuck and the contacts being movable relative to one another so that the contacts contact terminals on the substrates; and an electric tester connected to the contacts so that signals can be relayed through the terminals and the contacts between the electric tester and the circuit.