Patent · US Active

Lithographic apparatus and device manufacturing method

US9645506B2 · kind B2 · utility

0Cited by
20References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 13, 2013
Grant dateMay 9, 2017
Priority date
Expiry dateNov 20, 2034

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03F7/70341
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A liquid confinement system for use in immersion lithography is disclosed in which the meniscus of liquid between the liquid confinement system and the substrate is pinned substantially in place by a meniscus pinning feature. The meniscus pinning feature comprises a plurality of discrete outlets arranged in a polygonal shape.

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