Operating instructions

Preventive Maintenance Manual

4.7.2 Check Flatness

Check the flatness of the Pressure Insert and the Bond Chuck with a

straight edge. Make sure that the surface is absolutely even and no

spots are visible.

Figure 61 - Flat Bond Tool

In order to check the flatness of a bond chuck accurately, check the

flatness two times in a 90° angle.

When checking the flatness make sure to check it on the whole surface

by moving the straight edge over the surface like shown below:

Note: If the flatness is only checked once the result could be inaccurate.

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