Abstract

An EUV radiation source that includes a nozzle positioned a far enough distance away from a target region so that EUV radiation generated at the target region by a laser beam impinging a target stream emitted from the nozzle is not significantly absorbed by target vapor proximate the nozzle. Also, the EUV radiation does not significantly erode the nozzle and contaminate source optics. In one embodiment, the nozzle is more than 10 cm away from the target region.

Document Type

Patent

Patent Number

US 6,933,515

Application Serial Number

10/606,447

Issue Date

8-23-2005

Current Assignee

UCFRF

Assignee at Issuance

UCFRF

Allowance Date

4-5-2005

Filing Date

6-26-2003

Assignee at Filing

Agency: Northrop Grumman Corporation

Filing Type

Nonprovisional Application Record

Donated

yes

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