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.:
Date of Patent:
Apr. 15, 2014
Filed:
Jun. 22, 2011
Applicants:
Hidefumi Hiura, Tokyo, JP;
Kazuhito Tsukagoshi, Ibaraki, JP;
Hisao Miyazaki, Ibaraki, JP;
Inventors:
Assignees:
NEC Corporation, Tokyo, JP;
National Institute for Materials Science, Tsukuba-Shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 23/225 (2006.01);
U.S. Cl.
CPC ...
G01N 23/225 (2013.01);
Abstract
Provided is a versatile method of determining the number of layers of a two-dimensional atomic layer thin film as compared with conventional methods. An electron beam is radiated to a two-dimensional thin film atomic structure having an unknown number of layers to determine the number of layers based on an intensity of reflected electrons or secondary electrons generated thereby. In particular, this method is effective for determining the number of layers of graphene.