Patent · US Active

Lithographic apparatus and device manufacturing method

US8138486B2 · kind B2 · utility

1Cited by
24References
20Claims
0Family size

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Inventors

Key dates

Filing dateNov 6, 2009
Grant dateMar 20, 2012
Priority date
Expiry dateApr 1, 2030

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03F7/707
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

In an immersion lithographic apparatus, bubble formation in immersion liquid is reduced or prevented by reducing a gap size or area on a substrate table and/or covering the gap.

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