SThM - Tilt in thermal channel

obi-mike posted on Fri, Mar 21 2014 6:22 AM

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Hi.

I'm still working on my SThM measurements. Got them to run well so far (using contact mode), but with my last measurement series I got a new phenomenon I cannot really explain, namely a continues tilt in the thermal channel. This tilt also does not seem to relate to the topography. I tried readjusting the laser on the probe, but to no avail so far. Also, the tilt is the same in the trace- and retrace-image.

Do anybody have ideas as to what could cause this, or how to prevent it from happening?

(I don't seem to be able to share my uploaded images here. If necessary I could send them directly)

Cheers and thanks in advance,

mike