SEMICONDUCTOR ELECTRON EMITTING DEVICE WHOSE ACTIVE LAYER HAS A DOPING GRADIENT

• Main Authors: GUITTARD, PIERRE, DUCARRE, ALPHONSE, HAJI, LAZHAR, JARRY, PHILIPPE
• Format: Patent
• Language: English; French
• Published: 13.02.1985
• Edition: 4
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS; ELECTRICITY

An electron emitting device including an active semiconductor layer having a surface from which electrons are emitted. The layer is doped with impurity atoms at a density which decreases with distance from the surface.