The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 07, 2024

Filed:

Aug. 03, 2022
Applicant:

Kla Corporation, Milpitas, CA (US);

Inventors:

Ilya Bezel, Mountain View, CA (US);

Leonid Borisovich Zvedenuk, Moscow, RU;

Andrey Evgenievich Stepanov, Moscow, RU;

Amir Torkaman, San Carlos, CA (US);

Assignee:

KLA Corporation, Milpitas, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 61/28 (2006.01); H01J 61/02 (2006.01); H01J 61/52 (2006.01); H01J 65/04 (2006.01);
U.S. Cl.
CPC ...
H01J 65/042 (2013.01); H01J 61/025 (2013.01); H01J 61/28 (2013.01); H01J 61/52 (2013.01);
Abstract

A plasma lamp for use in a laser-sustained plasma (LSP) light source is disclosed. The plasma lamp includes a gas containment structure for containing a gas, a gas seal positioned at a base of the gas containment structure, a gas inlet, and a gas outlet. The plasma lamp includes a gas swirler including a set of nozzles configured to generate a vortex gas flow and a swirler shaft including an inlet channel for delivering the gas from the gas inlet to the nozzles and an outlet channel for delivering the gas from the gas containment structure to the gas outlet. The plasma lamp includes a distributor including one or more plenums to distribute the gas from the gas inlet into the swirler. The plasma lamp may also include a deflector fluidically coupled to the swirler shaft and extending above the set of nozzles and configured to direct gas flow around the swirler.


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