Patent ID: 11940727
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 18:
19. A lithography system, comprising:
an exposure chamber;
a reticle stage arranged within the exposure chamber; and
a reticle library including at least one reticle enclosure, the at least one reticle enclosure including a reticle intended for the reticle stage, wherein the at least one reticle enclosure encloses a reticle enclosure that contains the reticle, the reticle enclosure including:
a pod including a base having a first surface, and a cover having a second surface and positioned on the base with the first surface contacting the second surface, wherein the base and the cover define an internal space therebetween;
a plurality of first barriers contacting the first surface and extending between the first surface and second surface; and
a plurality of second barriers contacting the second surface and extending between the first surface and the second surface, the plurality of first barriers and the plurality of second barriers being alternatively arranged in an interlocking pattern about the internal space.