1, grounded sample holders: sample holders surface grounding, oxygen-free copper plating.

2、Insulated sample holder: the surface is insulated so that the sample will not conduct to ground when placed on the sample holder.

3、Temperature difference thermal sample holder: the sample holder realizes partition design, two zones can realize 30k temperature difference, the sample holder surface grounding.

4、Coaxial sample holder: the sample surface is electrically insulated, the bottom can be biased, the bottom has a BNC connector

5. Tri-coaxial sample holder: the sample surface is electrically insulated, there is an electrically insulated Guard protection layer between the sample surface and ground, there is a Guard protection and a tri-coaxial connector at the bottom.

6、Rotating sample holder