Electron-emitting device, electron source using the electron-emitting device, and image-forming apparatus using the electron source
AssigneeCanon Kabushiki Kaisha
InventorsKeisuke Yamamoto, Tamaki Kobayashi, Satoshi Mogi
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Abstract
An electron-emitting device includes, a pair of electroconductors disposed on a substrate so as to face each other, and a pair of deposit films connected to the pair of electroconductors, respectively, disposed with a gap therebetween and mainly containing carbon. Lead is contained in the deposit films in a rate of from 1 mol % to 5 mol %% with respect to carbon.
Claims16
An electron-emitting device comprising:
- a pair of electroconductors disposed on a substrate so as to face each other;
- and
- a pair of deposit films connected to the pair of electroconductors, respectively, disposed with a gap therebetween and containing carbon as a main component,
- wherein lead is contained in said deposit films in a ratio of from 1 mol% to 5 mol% with respect to carbon.
An electron-emitting device comprising:
- a pair of device electrodes disposed on a substrate so as to face each other;
- electroconductive films connected to the pair of device electrodes and having a fissure between the pair of device electrodes;
- and
- a deposit formed in said fissure and on a region including said fissure, having a gap narrower in width than that of said fissure within said fissure and containing carbon as a main component,
- wherein lead is contained in said deposit in a ratio of from 1 mol% to 5 mol% with respect to carbon.
An electron-emitting device comprising:
- a carbon film composed chiefly of carbon;
- and
- an electrode electrically connected to the carbon film,
- wherein lead is contained in the carbon film in a ratio of 5 mol% or less with respect to carbon.
An electron-emitting device comprising:
- a carbon film composed chiefly of carbon;
- and
- an electrode electrically connected to the carbon film,
- wherein lead is contained in the carbon film in a ratio of from 1 mol% to 5 mol% or less with respect to carbon.
An electron-emitting device comprising:
- a pair of device electrodes disposed on a substrate;
- and
- a pair of films connected to the pair of device electrodes, respectively, disposed with a gap therebetween and containing carbon as a main component,
- wherein lead is contained in said films in a ratio of 5 mol% or less with respect to carbon.
An electron-emitting device comprising:
- a pair of device electrodes disposed on a substrate;
- an electroconductive film connected to the pair of device electrodes and having a first gap between the pair of device electrodes;
- and
- a carbon film disposed in the first gap and on the electroconductive film, and having a second gap narrower in width than that of the first gap, within the first gap, and containing carbon as a main component,
- wherein lead is contained in the carbon film in a ratio of 5 mol% or less with respect to carbon.
An electron-emitting device comprising:
- a pair of device electrodes disposed on a substrate so as to face each other;
- an electroconductive film connected to the pair of device electrodes and having a first gap between the pair of device electrodes;
- and
- a carbon film disposed in the first gap and on the electroconductive film, and having a second gap narrower in width than that of the first gap, within the first gap, and containing carbon as a main component,
- wherein lead is contained in the carbon film in a ratio of from 1 mol% to 5 mol% or less with respect to carbon.
An electron-emitting device comprising:
- a carbon film composed chiefly of carbon;
- and
- an electrode electrically connected to the carbon film,
- wherein lead is contained in the carbon film in a ratio of 1 mol% or more with respect to carbon.
Dependencies are inferred from the claim text.