Patent ID: 6436788
Filing Date: 2002-08-20
Classification: H01J

Abstract:
A method for fabricating a field emission display baseplate, the method comprising:forming an n-tank within a p-region of semiconductor material, the n-tank being peripherally surrounded by the p-region; forming an insulator portion beneath the n-tank, the insulator portion electrically isolating only a lower boundary of the n-tank from the p-region so that a depletion region between the n-tank and the p-region is displaced to a peripheral boundary region surrounding the n-tank; forming an emitter on the n-tank above the insulator portion, the n-tank being substantially bounded by the insulator opposite from the emitter; and forming at least one other layer in which an opening is formed to expose the emitter, the opening being formed over the insulator portion so that the depletion region is at least partially displaced from the area that can be illuminated by photons via the opening.