Patent ID: 7663388
Filing Date: 2010-02-16
Classification: G01R

Abstract:
1. A thermal control unit for maintaining the set point temperature on an IC device under test (DUT) comprising a pedestal assembly having heat conductive pedestal having a bottom end for contacting a DUT and a temperature sensor in said bottom end for monitoring the temperature of the DUT, a fluid block above said pedestal assembly having a fluid inlet and fluid outlet for circulating a fluid therethrough, a thermoelectric module between the pedestal of said pedestal assembly and said fluid block for controlling the heat flow between said pedestal and fluid block for controlling the temperature of the DUT contacted by the bottom end of said pedestal, a cover housing attached to said pedestal assembly for containing the fluid block and thermoelectric module in stacked relation over the pedestal of said pedestal assembly along a z-axis, said cover assembly having a top wall extending over said fluid block, said top wall having a top side for receiving a z-axis pushing force and a bottom side, and a spring loaded pusher mechanism at the bottom side of the top wall of said cover housing for producing compliant containment of the fluid block and thermoelectric module over the pedestal of said pedestal assembly with a compliant z-axis force.