Patent · US Active

Pellicle and pellicle assembly

US11231646B2 · kind B2 · utility

0Cited by
2References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 8, 2018
Grant dateJan 25, 2022
Priority date
Expiry dateNov 3, 2038

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03F1/64
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A pellicle assembly is disclosed that has a pellicle frame defining a surface onto which a pellicle is to be attached. The pellicle assembly includes one or more three-dimensional expansion structures that allow the pellicle to expand under stress. There is also disclosed a pellicle assembly for a patterning device, the pellicle assembly including one or more actuators for moving the pellicle assembly towards and way from the patterning device.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.