Patent · US Active

Pellicle and pellicle assembly

US11754918B2 · kind B2 · utility

0Cited by
4References
24Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 13, 2021
Grant dateSep 12, 2023
Priority date
Expiry dateDec 13, 2041

Classification

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

Abstract

The invention relates to a pellicle assembly comprising a pellicle frame defining a surface onto which a pellicle is attached. The pellicle assembly comprises one or more three-dimensional expansion structures that allow the pellicle to expand under stress. The invention also relates to a pellicle assembly for a patterning device comprising 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.