Radiant energy – Radiant energy generation and sources – With radiation modifying member
Reexamination Certificate
2008-05-13
2008-05-13
Berman, Jack (Department: 2881)
Radiant energy
Radiant energy generation and sources
With radiation modifying member
C250S505100, C250S493100, C378S119000, C378S121000, C378S122000, C378S145000, C378S034000, C378S084000, C315S111310, C315S111410, C315S111810, C315S111910, C219S121310, C219S121410, C219S121480, C313S231310, C313S231410
Reexamination Certificate
active
11252021
ABSTRACT:
Various mechanisms are provided relating to plasma-based light source that may be used for lithography as well as other applications. For example, a device is disclosed for producing extreme ultraviolet (EUV) light based on a sheared plasma flow. The device can produce a plasma pinch that can last several orders of magnitude longer than what is typically sustained in a Z-pinch, thus enabling the device to provide more power output than what has been hitherto predicted in theory or attained in practice. Such power output may be used in a lithography system for manufacturing integrated circuits, enabling the use of EUV wavelengths on the order of about 13.5 nm. Lastly, the process of manufacturing such a plasma pinch is discussed, where the process includes providing a sheared flow of plasma in order to stabilize it for long periods of time.
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Golingo Raymond
Nelson Brian A.
Shumlak Uri
Berman Jack
Sahu Meenakshi S
The University of Washington
Woodcock & Washburn LLP
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