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:
Sep. 17, 2013

Filed:

Dec. 20, 2010
Applicant:

Takashi Kamo, Yokohama, JP;

Inventor:

Takashi Kamo, Yokohama, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03F 1/24 (2012.01);
U.S. Cl.
CPC ...
Abstract

According to one embodiment, a reflective exposure mask comprises a first layer formed on a substrate and including a first light absorbing part which absorbs exposure light and a light reflecting part which reflects the exposure light, and a second layer formed on the light reflecting part and including a second light absorbing part which absorbs the exposure light.


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Kamo, Takashi. (2013). Reflective exposure mask, method of fabricating reflective exposure mask, method of inspecting reflective exposure mask, and method of cleaning reflective exposure mask (U.S. Patent No. 8535854). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8535854

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