Agilent Technologies 1168/9A, User Manual

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92 1168/9A Probes User’s Guide
2 Using Probe Heads
Using N2884A Fine-Wire ZIF tips
the probing performance). The short wire wells will always
need to be up and to the left of the long wire well (from the
perspective of the probing direction).
To land both of the wires in the wells, first position the IC
under a microscope and move both wires into the region as
shown below.
Figure 59 Wires in Wells
How easy the rest of these steps are will depend on how
powerful of a microscope you have. It may take a while to
get adjusted to the process, but with some practice, you
should grow in your comfort level.
Move the positioner in the x- y direction until the tip of the
long wire is above its well. You may not be able to see the
wells and the wires in focus at the same time. If this is the
case then first focus on the wells and then slowly move the
focus out until you can see just the tips of the wires. You
should then be able to move the longer wire tip over the
first well.
Next, slowly land the tip in its well (using the z- direction
adjustment on the micropositioner). Keep moving down until
you see the end of the wire bend slightly. This will ensure
that this wire remains stuck while we translate the shorter
wire in the next step. Do not land the longer wire too hard
or you could damage it. Once you see it flex, stop moving in
the z- direction and use the x- y knobs on the micropositioner
The two pointed shadows
shown in the image to the
left are the 22 micron
wires