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US08232716B2 Field emission cathode capable of amplifying electron beam and methods of controlling electron beam density 有权
能够放大电子束的场发射阴极和控制电子束密度的方法

Field emission cathode capable of amplifying electron beam and methods of controlling electron beam density
Abstract:
Field emission devices (FEDs) are provided. In one embodiment, an FED includes an electron emitter, a tube spaced apart from the electron emitter and having a first opening and a second opening, and a gate electrode disposed on an outer surface of the tube. The first opening is disposed at one end of the tube adjacent to the electron emitter, and the second opening is disposed at the other end of the tube. The FED further includes an anode that is spaced apart from the second opening and collects secondary electrons emitted from the second opening.
Abstract(Chinese):

提供场发射装置（FED）。 在一个实施例中，FED包括电子发射器，与电子发射器间隔开并具有第一开口和第二开口的管以及设置在管的外表面上的栅电极。 第一开口设置在与电子发射器相邻的管的一端，并且第二开口设置在管的另一端。 FED还包括与第二开口间隔开并收集从第二开口发射的二次电子的阳极。

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