Thermal control using phase-change material
AssigneeTeradyne, Inc.
InventorsLarry Akers, Joseph Wrinn, Philip Campbell, David Graziose
Life of this patent
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Abstract
An example test system includes: a test slot to hold a device under test (DUT); a temperature control system comprising a phase-change material, with the temperature control system for maintaining a temperature of the phase-change material in a steady-state condition, with the phase-change material changing phase during a transient condition to affect a temperature of a thermally-conductive structure, and with the steady-state condition being longer in duration than the transient condition; and an air mover to direct air over the thermally-conductive structure and towards the DUT in the test slot in order to affect a temperature of the DUT.
Claims25
A test system comprising:
- a test slot to hold a device under test (DUT);
- a temperature control system comprising a phase-change material, the temperature control system to maintain a temperature of the phase-change material in a steady-state condition, with the phase-change material changing phase during a transient condition to affect a temperature of a thermally-conductive structure, the steady-state condition being longer in duration than the transient condition;
- and
- an air mover to direct air over the thermally-conductive structure and towards the DUT in the test slot in order to affect a temperature of the DUT.
A temperature control system for one or more test slots, comprising:
- a cooling loop for one or more test slots, the cooling loop comprising a first liquid and a first phase-change material, the first phase-change material to remove heat from the first liquid during a first transient condition, the cooling loop comprising a cooling system to cool the first liquid during a first steady-state condition, the first steady state condition is longer in duration than the first transient condition;
- and
- a heating loop for one or more test slots, the heating loop comprising a second liquid and a second phase-change material, the second phase-change material to add heat to the second liquid during a second transient condition, the heating loop comprising a heating system to add heat to the second liquid during a second steady-state condition, the second steady state condition is longer in duration than the second transient condition.
Dependencies are inferred from the claim text.