| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an electron emission element, electron source and image- forming device which realizes convergence of electron orbit and improvement of the electron emission efficiency and aims at improving the quality by restraining the damage to the electrode. SOLUTION: A high potential electrode 4, similarly to the low potential electrode 2, has a conductive material of metal carbide or metal nitride to avoid electromigration at electron scattering (collision). As the material for the metal carbide or metal nitride, a carbide, nitride, etc., with at least one among the high-melting point metal of Cr, Mo, Nb, Ta, Ti, W and Zr can be cited.</p> |
