Electric lamp or space discharge component or device manufacturi – Process – With assembly or disassembly
Patent
1995-11-17
1997-10-28
Ramsey, Kenneth J.
Electric lamp or space discharge component or device manufacturi
Process
With assembly or disassembly
445 50, H01J 902
Patent
active
056811969
ABSTRACT:
In accordance with the invention, a field emission device is made by disposing emitter material on an insulating substrate, applying a sacrificial film to the emitter material and forming over the sacrificial layer a conductive gate layer having a random distribution of apertures therein. In the preferred process, the gate is formed by applying masking particles to the sacrificial film, applying a conductive film over the masking particles and the sacrificial film and then removing the masking particles to reveal a random distribution of apertures. The sacrificial film is then removed. The apertures then extend to the emitter material. In a preferred embodiment, the sacrificial film contains dielectric spacer particles which remain after the film is removed to separate the emitter from the gate. The result is a novel and economical field emission device having numerous randomly distributed emission apertures which can be used to make low cost flat panel displays.
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Jin Sung-ho
Kochanski Gregory Peter
Thomson, Jr. John
Books Glen E.
Lucent Technologies - Inc.
Ramsey Kenneth J.
Schneider Bruce S.
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