Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Shou-Shan Fan0
Kai-Li Jiang0
Liang Liu0
Peng Liu0
Date of Patent
March 29, 2011
0Patent Application Number
122888650
Date Filed
October 23, 2008
0Patent Primary Examiner
Patent abstract
A thermionic electron source includes a substrate, two electrodes, and a thermionic emitter. The thermionic emitter is electrically connected to the two electrodes. The substrate has a recess formed on a surface thereof, and the thermionic emitter is located on the surface of the substrate corresponding to the recess.
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