Spacer pads for field emission device

Details Spacer pads for field emission device Spacer pads for field emission device

1997-05-12

1998-11-03

O'Shea, Sandra L.

Electric lamp and discharge devices

With luminescent solid or liquid material

Vacuum-type tube

313309, H01J 196

Patent

active

058313834

ABSTRACT:
A field emission device (100, 200) includes an anode (190); a substrate (110); a plurality of spaced apart cathodes (120); a dielectric layer (124) disposed on the cathodes (120); a plurality of spacer pads (130, 230) disposed on the substrate (110) between adjacent cathodes (120) and including a spacer contact layer (142, 185) that defines the surfaces of the spacer pads (130, 230); a spacer (150) having a first edge (157), a second edge (155), and a conductive layer (152) disposed on the second edge (155), the first edge (157) contacting the anode (190), the conductive layer (152) contacting the spacer contact layer (142, 185) at the spacer pads (130, 230); and an electron emitter (170) disposed within the dielectric layer (124) and spaced apart from the second edge (155) of the spacer (150).

REFERENCES:
patent: 5514847 (1996-05-01), Makishima et al.
patent: 5561343 (1996-10-01), Lowe
patent: 5614781 (1997-03-01), Spirdt et al.
patent: 5675212 (1997-10-01), Schmidt et al.

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