Whats special about Cascade (Temperature control capabilities)?
The Cascade Probe Station is designed for temperature control measurements. It is cooled with a special cooling liquid that goes through the chuck. The chamber must be dehydrated for at least five to six hours prior to cooling, so it should be sealed from the surrounding air. The manipulators are moved by the round black knobs on the plastic shield that attach to the manipulators by springs. When cooling or heating the chuck, probes must be lifted up, otherwise they will scratch everything due to thermal expansion. The wafer chuck can move only in the horizontal direction when the chamber is sealed; the mechanism is located on the side of the chamber as is the knob that focuses the microscope.
