Patent · US Expired

Optical element fabrication method, optical element, exposure apparatus, device fabrication method

US7455880B2 · kind B2 · utility

0Cited by
11References
11Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 29, 2005
Grant dateNov 25, 2008
Priority date
Expiry dateDec 3, 2025

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC03C2218/32
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

There is to provide an optical element fabrication method including the steps of forming a thin film onto a substrate, and eliminating a color center produced in the forming step by giving energy to the substrate.

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