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:
Jun. 06, 2017
Filed:
Feb. 19, 2016
Industry-university Cooperation Foundation Sunmoon, Asan-si, Chungcheongnam-do, KR;
Ho Seob Kim, Incheon, KR;
Tae Sik Oh, Cheonan-si, KR;
Dae Wook Kim, Seongnam-si, KR;
Hyung Woo Kim, Seoul, KR;
Seung Jun Ahn, Daejeon, KR;
INDUSTRY-UNIVERSITY COOPERATION FOUNDATION SUNMOON UNIVERSITY, Asan-si, Chungcheongnam-Do, KR;
Abstract
Disclosed is a micro-electron column including nanostructure tips each of which has a tubular, columnar, or blocky structure ranging in size from several nanometers to dozens of nanometers. In the micro-electron column, the nanostructure tips can easily emit electrons because a high electric field is generated at the end of the nanostructure tips when a voltage is applied to the nanostructure tips, and an induction electrode is disposed between the electron emitter and a source lens so as to help electrons emitted from the electron emitter to enter an aperture of a first lens electrode layer of the source lens, thereby realizing improved performance of the micro-electron column. In the micro-electron column, the size of the nanostructure tips may be larger than that of the aperture of a source lens.