Patent ID: 11929267
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  B  F | IPC B  H

Claim 17:
18. An ultraviolet (UV) lamp assembly of a UV curing tool for curing a low dielectric constant (low-k) material layer of a semiconductor wafer, said UV lamp assembly comprising:
a UV lamp which emits UV light;
a set of reflectors, comprising:
a first reflector arranged proximate to a first side of said UV lamp,
a second reflector arranged proximate to a top of said UV lamp, and
a third reflector arranged proximate to a second side of said UV lamp, said second side being opposite the first side; and

a UV reflective coating partially coating at least one of the set of reflectors,
wherein a plurality of areas of the at least one of the set of reflectors remain uncoated with the UV reflective coating, and the plurality of areas uncoated are each separated by said UV reflective coating partially coating at least one of the set of reflectors.