| 摘要 |
<p>PROBLEM TO BE SOLVED: To generate an avalanche breakdown phenomenon without a pn junction, and to generate hot electrons without losing energy and to efficiently emit electrons from a semiconductor to the outside (vacuum). SOLUTION: This electron emitting cold cathode element 1 of an integrated structure is formed by disposing a semiconductor 2A between a first electrode 3 and a second electrode 4. A collector electrode 6 is disposed opposed to the electron emitting cold cathode element 1. A voltage applying power source 8 is serially connected to a collector power source 7 that a plus side thereof is connected to the collector electrode 6. The second electrode 4 is connected to the plus side of the voltage applying power source 8 and the first electrode 3 is connected to the minus side.</p> |
