| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain simple element structure, being suitable for stabilizedly controlling the emitted electric current of a cold electron emitting element. SOLUTION: In an emitter 13 formed into a solid shape onto a base bottom member 11, a source layer 32 and a drain layer 34 are provided on the side of a base part contacting the base bottom member 11 and of a free end including a tip Po respectively. A channel region layer 33 is provided, between the layers 32 and 34, to control the conductivity of a channel layer 33, thereby stabilizedly controlling an emitted electric current emitted from the tip Po by a gate 14 for applying a high electric field to the tip Po of the emitter 13.</p> |
