摘要:
A holder device for holding an optical element includes a holder having first and second members to sandwich the optical element therebetween, and a sealing member for creating a seal between the second member and the optical element.
摘要:
A chamber apparatus, which may be used with an external apparatus having an obscuration region, may include: a chamber in which EUV light is generated; a collector mirror having a first through-hole formed in a region aside from the center thereof and configured to collect the EUV light generated inside the chamber, the collector mirror being positioned such that the first through-hole is located in a region substantially corresponding to the obscuration region; and an etching gas supply unit provided in the first through-hole and configured to supply an etching gas into the chamber.
摘要:
A chamber apparatus, which may be used with an external apparatus having an obscuration region, may include: a chamber in which EUV light is generated; a collector mirror having a first through-hole formed in a region aside from the center thereof and configured to collect the EUV light generated inside the chamber, the collector mirror being positioned such that the first through-hole is located in a region substantially corresponding to the obscuration region; and an etching gas supply unit provided in the first through-hole and configured to supply an etching gas into the chamber.
摘要:
A holder device for holding an optical element includes a holder having first and second members to sandwich the optical element therebetween, and a sealing member for creating a seal between the second member and the optical element.