A method, system, and apparatus for testing one or more micro-magnetic
switches on a wafer is described. A magnet is positioned adjacent to a
first switch on the wafer. A probe card is positioned adjacent to the
first switch. The probe card mounts a first set of probes and a second
set of probes. The first set of probes interface with contact areas of a
coil associated with the first switch. The second set of probes interface
with conductors on the wafer associated with the cantilever of the first
switch. A current source is electrically coupled to the first set of
probes. The current source activates the coil of the first switch using
the first set of probes to switch the cantilever from a first state to a
second state. A switch state monitor is electrically coupled to the
second set of probes. The switch state monitor determines whether the
cantilever of the first switch is in the first state prior to the current
source activating the coil of the first switch. The switch state monitor
also determines whether the cantilever is in the second state after the
current source activates the coil of the first switch. A stepper motor
moves the wafer relative to the magnet and probe card to test further
switches on the wafer. An inker marks a switch on the wafer that has been
determined by the switch state monitor to be defective.