发明授权
US07902734B2 Electron emission element and electron emission element fabrication method 失效
电子发射元件和电子发射元件制造方法

Electron emission element and electron emission element fabrication method
摘要:
An electron emitting device 2 comprises an electron emitting portion 6 made of diamond. At an electron emission current value of 10 μA or more, a deviation of the electron emission current value over one hour is within ±20% in the electron emitting device 2. The number of occurrence of step-like noise changing the electron emission current value stepwise is once or less per 10 minutes.
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