1 Operation Points and Startup
1-5
1.4
Head Stage
The head stage on the top panel of the prober main body is used to attach the probe card. It is
also used to support the test head for the tester.
Opening/closing the head stage
1) Check that there is no obstacle above and within the operation range of the head stage.
2) While holding down the head stage with one hand, completely loosen the two clamp bolts.
Caution:
The head stage is spring-loaded, and will automatically begin to lift once the clamp bolts have
been loosed. To avoid the head stage from jumping open, be sure to hold down the head stage
as you loosen the clamp bolts. Allow the head stage to open gradually by slowly reducing the
downward force on it.
3) To close the head stage, hold down the head stage with your right hand as you pull the
PULL knob provided on the front left interior of the main body.
4) Firmly tighten all four clamp bolts.
Clamp bolts
