The Chuck is designed to be electrically isolated from all other sources to be a low source of noise.

 The Chuck has 4 sizes of vacuum groves (can have additional or fewer based upon your needs) that can be regulated to hold the Solar Cell firmly to allow a variety of different sizes of cells to be tested.

 The Chuck Plate is manufactured out of brass but can be upgraded to copper with optional gold or nickel coating.

 The chuck plate consists of spring loaded gold pins to make the standard 4 wire IV test connection. One connection is in the center isolated from the plate to make the negative voltage measurement, the plate itself is the negative connection, one 3 axes arm consists of multiple spring loaded gold pins to take the current, and another 3 axes arm with a single gold pin to make the positive voltage measurement.  Both arms are independently pneumatic controlled and pressure can be regulated to control the force the pin puts on the cell.

 From Figure above you can see the Solar Cell Chuck consists of the following items; cooling/heading exchanger (located under chuck), vacuum connections and groves for holding the cell, electrical and temperature measurement.

Options:

-Temperature Control Device

-Water or TE Coooling

-Vacuum and Pressure pumps

-Copper plate upgrade to gold or nickel coating

-Sample and reference cell switching mount

-X-Y movement mount

Price dependent upon size and options.