Friday, October 05, 2007

US Patent 7276844 - Photoimagable CNT field emitter paste

In order to mass produce field emission displays using carbon nanotubes it may be necessary to integrate CNT processing with current semiconductor manufacturing methods. This patent from du Pont teaches the use of a paste that includes both carbon nanotubes and photosensitive material to facilitate photopatterning of CNT electron emitters. Claim 1 reads:

1. A field emitter cathode comprising (a) a substrate, and (b) a field emitter cathode paste composition comprising a composition of carbon nanotubes, particles and one or more members of the group consisting of a photoinitiator, a developable binder and a photohardenable monomer.

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