发明名称 |
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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申请公布号 |
US7902734(B2) |
申请公布日期 |
2011.03.08 |
申请号 |
US20060883323 |
申请日期 |
2006.09.21 |
申请人 |
SUMITOMO ELECTRIC INDUSTRIES, LTD. |
发明人 |
YAMAMOTO YOSHIYUKI;TATSUMI NATSUO;NISHIBAYASHI YOSHIKI;IMAI TAKAHIRO |
分类号 |
H01J1/304 |
主分类号 |
H01J1/304 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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