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US 2009/0153012 A1Published application
Thermionic electron source
AssigneesTsinghua University, Hon Hai Precision Industry Co., Ltd.
InventorsPeng Liu, Liang Liu, Kai-Li Jiang, Shou-Shan Fan
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Abstract
A thermionic electron source includes a substrate, at least two electrodes, and a thermionic emitter. The electrodes are electrically connected to the thermionic emitter. The thermionic emitter has a film structure. Wherein there a space is defined between the thermionic emitter and the substrate.
Claims18
A thermionic electron source comprising:
- a substrate;
- two electrodes;
- and
- a thermionic emitter, the thermionic emitter being electrically connected to the two electrodes, the thermionic emitter having a film structure;
- wherein there a space is defined between the thermionic emitter and the substrate.
2 more elements
A thermionic electron source comprising:
- a substrate;
- two or more supporting elements attached to the substrate;
- a thermionic emitter located on the two or more supporting elements;
- two electrodes connected to the thermionic emitter;
- and
- wherein the thermionic emitter comprises a carbon nanotube layer.
3 more elements
A thermionic electron source comprising:
- a substrate;
- two electrodes separately attached to the substrate;
- two fixing elements;
- and
- a thermionic emitter suspended above the substrate by the two electrodes;
- wherein the thermionic emitter comprises a carbon nanotube layer, and the two fixing elements fixing the thermionic emitter to the two electrodes.
3 more elements
Dependencies are inferred from the claim text.