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:
Apr. 14, 2015

Filed:

May. 14, 2012
Applicants:

Bong-yeon Kim, Seoul, KR;

Min Kang, Seoul, KR;

Jong Kwang Lee, Daejeon, KR;

Jin Ho Ju, Seoul, KR;

Inventors:

Bong-Yeon Kim, Seoul, KR;

Min Kang, Seoul, KR;

Jong Kwang Lee, Daejeon, KR;

Jin Ho Ju, Seoul, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03F 1/32 (2012.01);
U.S. Cl.
CPC ...
G03F 1/32 (2013.01);
Abstract

Provided is a photolithography mask capable of forming fine patterns beyond a critical resolution of an exposer without replacing or changing the exposer. The mask includes an at least partially light absorbing phase shift layer and uses a complex wavelength light source.


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