Patent ID: 6843306

Claim:
An excimer laser system comprising: a first housing containing heat generating laser components, the first housing having a first opening and a second opening; at least one additional housing containing heat generating laser components, the at least one additional housing having a first opening and second opening, the first opening of the at least one additional housing being proximate the first opening of the first housing, the second opening of the at least one additional housing being proximate the second opening of the first housing; a first liquid cooled heat exchanger affixed to the first opening in the first housing; an enclosure encasing the first housing, the at least one additional housing, and the first liquid cooled heat exchanger; a first blower configured to force air from outside the housings but within the enclosure through the first housing and the first liquid cooled heat exchanger, the first blower mounted proximate the first opening in the first housing; and a second blower configured to force air from outside the housings but within the enclosure through the at least one additional housing, the second blower affixed to the first opening in the second housing, wherein the heat generating laser components within the housings are efficiently cooled without air ducts.