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:
Aug. 14, 2012
Filed:
Oct. 08, 2010
Hai-yan Hao, Beijing, CN;
Peng Liu, Beijing, CN;
Jie Tang, Beijing, CN;
Yang Wei, Beijing, CN;
Liang Liu, Beijing, CN;
Kai-li Jiang, Beijing, CN;
Shou-shan Fan, Beijing, CN;
Hai-Yan Hao, Beijing, CN;
Peng Liu, Beijing, CN;
Jie Tang, Beijing, CN;
Yang Wei, Beijing, CN;
Liang Liu, Beijing, CN;
Kai-Li Jiang, Beijing, CN;
Shou-Shan Fan, Beijing, CN;
Tsinghua University, Beijing, CN;
Hon Hai Precision Industry Co., Ltd., Tu-Cheng, New Taipei, TW;
Abstract
A method for making a field emission cathode device is presented. First, an insulative substrate is provided. The insulative substrate includes a first surface and a second surface opposite to the first surface. The insulative substrate defines a number of openings extending through from the first surface to the second surface. Second, at least one electron emitter is provided corresponding to each of the number of openings. The electron emitter includes a fixing portion and an electron emission portion connecting to the fixing portion. The fixing portion is fixed on the first surface, and the electron emission portion extends from the fixing portion into the number of openings. Third, a number of cathode electrodes are formed on the first surface to fix the fixing portion between the insulative substrate and the cathode electrodes.