N5425B InfiniiMax Differential ZIF Probe Head
10
InfiniiMax RC Probe Amplifier and Probe Heads User’s Guide
119
Figure 64
ZIF Tip Latch in Open Position
The probe head should already be attached to the positioner arm (which is secured
to the micropositioner). Push the Fine Wire ZIF tip onto the probe head and close
the latch to lock them together. The picture below does not show the probe head
inside the positioner arm. It is meant to show you what the latch looks like when it
is closed.
Figure 65
ZIF Tip Latch in Closed Position
Step 8. Attach the Fine Wire ZIF tip Onto the Board
The procedure described below is for probing the underside of ICs and describes a
specific use-scenario. There may be other possible ways to use this probe tip. The
following steps require a probing station and a high-powered microscope.
In order to prepare the IC for probing, you first need to chemically etch a large
trench out of the IC. Within the trench, create at least two wells (target well and
ground well) to the targeted metal layers. These wells should be approximately
Zif tip
ZIF Probe Head
ZIF tip latch in Open position
ZIF tip latch in Closed
position
NOTE
Do not turn on the DUT until you have landed both wires and confirmed
that these wires are not touching (as described below).
