Device comprising carbon nanotube field emitter structure and process for forming device
Patent 6630772 Issued on October 7, 2003. Estimated Expiration Date: April 22, 2019. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
313/311, DISCHARGE DEVICES HAVING AN ELECTRODE OF PARTICULAR MATERIAL313/309, DISCHARGE DEVICES HAVING A MULTIPOINTED OR SERRATED EDGE ELECTRODE313/310, DISCHARGE DEVICES HAVING A THERMIONIC OR EMISSIVE CATHODE313/495, Vacuum-type tube445/49, Electrode shaping445/50, Emissive type445/51, Emissive type977/842For carbon nanotubes or fullerenes
The invention provides improved devices containing adherent carbon nanotube films, in particular electron field emitter structures containing such films. Previously, attaining even moderate adherence of powdery or mat-like nanotubes to a substrate was difficult, because of the perfect fullerene structure of nanotubes, which tend to exhibit no dangling bonds or defect sites where chemical bonding to the substrate is able to occur. The invention overcomes these problems, and provides a strongly adherent nanotube film, by a variety of fabrication processes.
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April 22, 2019. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
