Patent ID: 11860547
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC G  F  H | IPC F  G  H

Claim 6:
7. A process tool, comprising:
a wafer chuck;
a lens over the wafer chuck;
a light source over the lens; and
an immersion hood apparatus over the wafer chuck, wherein the lens is laterally surrounded by the immersion hood apparatus, and wherein the immersion hood apparatus comprises extractor piping on a first sidewall of the immersion hood apparatus, which is separated from a second sidewall of the immersion hood apparatus by a width of the immersion hood apparatus and which faces an opposite direction as the second sidewall, wherein the extractor piping has multiple discrete openings on the first sidewall of the immersion hood apparatus, and wherein the multiple discrete openings border on a common side of the immersion hood apparatus and are spaced from each other.