Patent ID: 7414253
Filing Date: 2008-08-19
Classification: H05G

Abstract:
1. An arrangement for the generation of EUV radiation based on a gas discharge plasma with high radiation emission in the range between 12 nm and 14 nm comprising: two coaxial electrode housings enclosing a vacuum chamber, a first of said electrode housings being provided as a discharge chamber for the gas discharge for plasma generation and a second electrode housing having a pre-ionization arrangement for the generation of an initial ionization of a work gas that is streamed into the vacuum chamber; a narrowed electrode collar of the second electrode housing projecting into the first electrode housing; a gas preparation unit being provided for defined control of the temperature and pressure of a tin-containing work medium and the flow thereof into the vacuum chamber in gaseous state; and at least one thermally insulated reservoir vessel and a thermally insulated supply line being provided for transferring the gaseous tin-containing work medium from the gas preparation unit to the pre-ionization unit located inside the electrode housings.