摘要 |
A purge ring for a photonic temperature processing system includes a first layer, a second layer, and a third layer. The first layer, the second layer and the third layer define an inner region. The first layer and the second layer define a first plenum and a first baffle. The first plenum receives a first gas that flows through the first plenum and the first baffle to the inner region. The second layer and the third layer define a second plenum and a second baffle. The second plenum receives a second gas that flows through the second plenum and the second baffle to the inner region, and wherein the second baffle is one of less restrictive and more restrictive than the first baffle. |