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.

Patent No.:

US 7180082 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 20, 2007

Filed:

Feb. 22, 2005
Applicants:

Ahmed Hassanein, Naperville, IL (US);

Isak Konkashbaev, Bolingbrook, IL (US);

Bryan Rice, Hillsboro, OR (US);

Inventors:

Ahmed Hassanein, Naperville, IL (US);

Isak Konkashbaev, Bolingbrook, IL (US);

Bryan Rice, Hillsboro, OR (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61N 5/06 (2006.01); G01J 3/10 (2006.01); H05G 2/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A device and method for generating extremely short-wave ultraviolet electromagnetic wave, utilizing a theta pinch plasma generator to produce electromagnetic radiation in the range of 10 to 20 nm. The device comprises an axially aligned open-ended pinch chamber defining a plasma zone adapted to contain a plasma generating gas within the plasma zone; a means for generating a magnetic field radially outward of the open-ended pinch chamber to produce a discharge plasma from the plasma generating gas, thereby producing a electromagnetic wave in the extreme ultraviolet range; a collecting means in optical communication with the pinch chamber to collect the electromagnetic radiation; and focusing means in optical communication with the collecting means to concentrate the electromagnetic radiation.


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Hassanein, Ahmed. (2007). Method for plasma formation for extreme ultraviolet lithography-theta pinch (U.S. Patent No. 7180082). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7180082

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