Extreme ultraviolet light source apparatus

Details Extreme ultraviolet light source apparatus Extreme ultraviolet light source apparatus

2011-08-16

2011-08-16

Souw, Bernard E (Department: 2881)

Radiant energy

Radiant energy generation and sources

With radiation modifying member

C250S42300F, C250S424000, C250S489000

Reexamination Certificate

active

07999241

ABSTRACT:
An extreme ultraviolet light source apparatus has a magnetic field generator which generates a magnetic field region around a direction of the magnetic field passing through a plasma region in which a plasma is to be generated and converges charged particles including ion emitted from the plasma region toward the direction of the magnetic field, a first charged particle collector (receiver) mounted at both sides of an axis of the magnetic field in the magnetic field region in order to collect (receive) the charged particles converged by the magnetic field, a target supply unit supplying a target from a nozzle located outside a converging region in which the charged particles are to be converged inside the magnetic field region in an extreme ultraviolet light generating chamber, and a target collector located at a position opposite to the nozzle, the target retrieval portion retrieving a residual target which does not contribute to generation of the plasma.

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