Island automation process
pre-testing electronic circuits on a ceramic
substrate. The circuits are part of an automotive
ignition module. The ceramic circuits of
4 x 5 mm are supplied in matrix trays of
12 x 18 products on edge conveyor. A tray
enters the cell and is positioned. A gripper
with 4 vacuum nozzles picks up 4 circuits
at the time and places them into a quadruple
test nest on the indexed turntable. The
turntable accommodates 8 nest positions
allowing multiple process possibilities:
preheating, functional testing and good/bad
board marking. After indexation the filled
nest is forwarded underneath the multiple
test head where the products are contacted
and tested. The test results are exchanged
between the test systems and the test handler
followed by good/bad board marking and sorting
of the circuits. At the load/unload position
the circuits are taken out of the nest and
are sorted to be dropped in the reject tray
or to be placed back in the original tray.
Finally the replenishment process takes
care that a full tray with good tested circuits
leaves the cell.
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