Patent · US Expired

Edge emission field emission device

US5804909A · kind A · utility

10Cited by

4References

7Claims

0Family size

Assignee

Motorola, Inc. · US

Inventors

Thomas Nilsson · Malmö, SE
John Song · Nashville, US
Emmett Howard · Mesa, US

Key dates

Filing date	Apr 4, 1997
Grant date	Sep 8, 1998
Priority date	—
Expiry date	Apr 4, 2017

Classification

Technology area (CPC H)Electricity
CPC primaryH01J2201/319
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An edge emission FED (100) includes a supporting substrate (110); a cathode (120) disposed on the supporting substrate (110); a ballast layer (130) disposed on the cathode (120); an emissive layer (140) disposed on the ballast layer (130) and defining an emissive edge (183); a field shaper layer (150) disposed on the emissive layer (140); a dielectric layer (160) disposed on the field shaper layer (150); a gate extraction electrode (170) disposed on the dielectric layer (160); an emission well (180) defined by the ballast layer (130), the emissive edge (183), the field shaper layer (150), the dielectric layer (160), and the gate extraction electrode (170); and an anode plate (188) opposing the gate extraction electrode (170).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.