Patent ID: 11860083
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 18:
19. An apparatus for testing an object, the apparatus comprising:
a test chamber;
a test board for testing an object, the test board disposed within the test chamber;
a first chamber adjacent to the test chamber with a lower surface of the test board exposed to the first chamber;
a second chamber surrounding the first chamber such that the first chamber is disposed entirely within the second chamber;
a compressor configured to supply dry gas to both the first chamber and the second chamber;
a first gas line connected between the compressor and the first chamber; and
a first valve disposed at the first gas line and configured to control the supplying of the dry gas to the first chamber;
a first humidity sensor disposed in the first chamber and configured to measure a first humidity in the first chamber;
a first controller configured to control the first valve in accordance with the first humidity in the first chamber measured by the first humidity sensor;
a second gas line connected between the compressor and the second chamber; and
a second valve disposed at the second gas line to control the supplying of the dry gas to the second chamber,
wherein the first chamber and the second chamber are isolated from one another so as to prevent fluid communication therebetween, and
wherein the second chamber is filled with the dry gas so as to prevent ambient air from entering the first chamber that is disposed entirely therein.