FIELD: electronic equipment.
SUBSTANCE: invention relates to electronic engineering, in particular to the production of field emission cathodes by laser milling from carbon materials for vacuum electronic devices, including microwave devices with a microsecond readiness time. Method for manufacturing an autoemission cathode from a carbon material consists in the fact that a parabolic emitting surface is formed, the center of curvature of which is located inside the cathode body, on which the micro-point matrix is formed by the laser micro-engraving method.
EFFECT: technical result is an increase in the emission uniformity over the cathode surface and an increase in the cathode current.
1 cl, 5 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR MANUFACTURING A FIELD-EMISSION CATHODE | 2022 |
|
RU2789539C1 |
| CATHODE-GRID KNOT WITH AUTO EMISSION CATHODE FROM CARBON MATERIAL | 2016 |
|
RU2644416C2 |
| METHOD OF MANUFACTURING A FIELD EMISSION CATHODE MULTI-TIPPED CARBON MATERIAL ON A CURVED SURFACE | 2014 |
|
RU2576395C2 |
| METHOD TO MANUFACTURE FIELD-EMISSION CATHODE | 2013 |
|
RU2526240C1 |
| CATHODE MESH ASSEMBLY WITH FIELD EMISSION CATHODE MANUFACTURING METHOD | 2017 |
|
RU2656879C1 |
| FIELD EMISSION EMITTER WITH NANOCRYSTALLINE DIAMOND FILM | 2021 |
|
RU2763046C1 |
| METHOD FOR MANUFACTURING A MATRIX OF FIELD-EMISSION TUBULAR CATHODES BASED ON DOPED NANOCRYSTALLINE DIAMOND FILMS | 2022 |
|
RU2784410C1 |
| METHOD OF INCREASING CURRENT DENSITY OF FIELD EMISSION AND DEGRADATION RESISTANCE OF FIELD-EMISSION CATHODES | 2014 |
|
RU2588611C1 |
| METHOD OF INCREASING EFFICIENCY OF MULTI-TIP ELECTRON FIELD EMISSION CATHODES | 2023 |
|
RU2813858C1 |
| POINTED-BLADE FIELD EMISSION CATHODE OF "PUSHPIN" TYPE | 2023 |
|
RU2823119C1 |
