Practical considerations for using the Linkam HFSX350-GI thermal stage
The Linkam has a thermal element 22 mm is diameter with 3 tapped holes (M2) arranges in an equilateral triangle with a side of 14 mm (attachment 1).
For electrical measurements, when test leads are connected to wires soldered to the sample, or for an independent temperature measurement with a
thermal probe attached to the samples, wires act like springs and can pull the sample out of contact with the thermal stage. It's important to make
the sample small enough to use two of the tapped holes for screws that can clamp down the sample in contact with the thermal stage and prevent the
loss of thermal contact.
A thin layer of thermal grease can help improve thermal contact with the sample. Choose Apiezon N or H for cold or hot temperatures. See the specs here:
entry 673[\URL]/ mirror entry 673[\URL]
For the electrical contacts, we have clip style probes connected to the two "electrical spring connectors" shown in Attachment 1. This is a 2-point probe contact only. 4-point probe contact is not supported. |