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Bond testers are traditionally used for force measurement only, but the extreme positional accuracy of the Sigma platform also enables you to measure whether the dimensions of your product are within specification, with never before seen accuracies. The system is equipped with 30nm resolution linear encoders and is completely backlash free (no gear box).
On any Sigma bond tester, the probe test method is available for free using pull or shear sensors. The system will accurately determine the Z-height of two positions and compare them to each other. The measurement result in this case is not a force, but a distance.
One can choose a programmed X/Y offset between the two points, or program the method so that the tester will move a certain distance in the direction in which your tool is pointing. The Probe test method is of course available for both manual and automatic testing.
The Sigma is also unique because of its programmable landing force down to 2,5 gf. Combined with an also programmable probe test speed, this enables very delicate sensing. Deformations or damage to the sample are therefore minimized.
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