METHOD FOR GENERATION OF EMITTING SURFACE OF SELF- EMITTING CATHODES WITH MULTIPLE NEEDLES Russian patent published in 1996 - IPC

FIELD: electronic instruments. SUBSTANCE: method involves sharpening needles of separate emitters and their step by step generation using temperature processing and thermal smoothening. In order to achieve goal of invention current of self-emission is taken off, voltage levels U₁ and U₂ which correspond to two required current levels l₁ and l₂ are measured. After each step of generation, corresponding voltage levels and l₁ which provide required levels of current of self-emission l₂ and Ф are measured. , relative number of emitters which operate simultaneously, is calculated using equation . Generation is finished when parameter Ф equals to level of this parameter for previous generation step. EFFECT: increased functional capabilities.