Test apparatus with test chamber for burn in boards

A test apparatus comprising:

• a test chamber;
• a first rack within the test chamber and configured to support a plurality of first burn in boards stacked in a first direction;
• a second rack within the test chamber and on top of the first rack, and configured to support a plurality of second burn in boards stacked in the first direction;
• and
• a supply duct on a first wall in a second direction of the test chamber, wherein the supply duct includes a first flow distributor corresponding to the first rack and a second flow distributor corresponding to the second rack, wherein
• the first flow distributor includes at least one first flow distribution structure, each first flow distribution structure defining a first inner space, and a width in the second direction of the first inner space increases as the first inner space extends along the first direction,
• the second flow distributor includes a plurality of second flow distribution structures arranged along a third direction intersecting the first direction and the second direction, and
• each of the plurality of second flow distribution structures defines a second inner space, and a width in the second direction of the second inner space increases as the second inner space extends along the first direction.

A test apparatus comprising:

• a test chamber;
• a first rack within the test chamber and configured to support a plurality of first burn in boards stacked in a first direction;
• a second rack within the test chamber and on top of the first rack, and configured to support a plurality of second burn in boards stacked in the first direction;
• and
• a first wall of the test chamber extending in a second direction and defining a plurality of inlets;
• a supply duct on the first wall of the test chamber, wherein the supply duct includes a first flow distributor corresponding to the first rack and a second flow distributor corresponding to the second rack;
• and
• a second wall of the test chamber extending in the second direction and defining a first discharge hole corresponding to the first rack and a second discharge hole corresponding to the second rack, wherein
• the first flow distributor includes at least one first inclined plate, and a distance between the first inclined plate and the first wall increases as the first inclined plate extends along the first direction,
• the second flow distributor includes a plurality of second inclined plates spaced apart from each other along a third direction intersecting the first direction and the second direction, and
• a distance between each of the plurality of second inclined plates and the first wall increases as each of the plurality of second inclined plates extends along the first direction.