Abstract:
A plurality of edge emitters (113) in a FED array include a plate shaped substrate (100) having parallel, laterally spaced apart grooves (103) formed in a first surface (101) and parallel, laterally spaced apart grooves (104) formed in the opposite surface (102) so that each second groove (104) crosses each first groove (103) at an angle. The combined depths (d1, d2) of the grooves (103, 104) is greater than the thickness of the plate substrate (100) so that an opening (105) is formed through the substrate (100) at each point where a second groove (104) crosses a first groove (103). Gate metal (107) is deposited on the surfaces in the openings (105) and emitter material (113) is deposited on the lands of the first surface (101) to form FED emitters in each opening (105).
Abstract:
A plurality of edge emitters (113) in a FED array include a plate shaped substrate (100) having parallel, laterally spaced apart grooves (103) formed in a first surface (101) and parallel, laterally spaced apart grooves (104) formed in the opposite surface (102) so that each second groove (104) crosses each first groove (103) at an angle. The combined depths (d1, d2) of the grooves (103, 104) is greater than the thickness of the plate substrate (100) so that an opening (105) is formed through the substrate (100) at each point where a second groove (104) crosses a first groove (103). Gate metal (107) is deposited on the surfaces in the openings (105) and emitter material (113) is deposited on the lands of the first surface (101) to form FED emitters in each opening (105).