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US 7,452,735 B2Granted
Carbon nanotube deposition with a stencil
AssigneeApplied Nanotech Holdings, Inc.
InventorsYunjun Li, Richard Fink, Mohshi Yang, Zvi Yaniv
Life of this patent
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Abstract
Composition of carbon nanotubes (CNTs) are produced into inks that are dispensable via printing or stencil printing processes. The CNT ink is dispensed into wells formed in a cathode structure through a stencil.
Claims22
A process for producing a field emission cathode comprising the steps of:
- providing a substrate having a plurality of wells physically separated from each other by walls;
- positioning a stencil with holes therein over the substrate, each of the holes positioned over one of the plurality of wells;
- and
- depositing a CNT mixture through the holes onto the substrate into each of the plurality of wells so that the CNT mixture fills each well so as to be touching each wall defining the well.
1 more element
A process for producing a display comprising the steps of:
- providing a substrate having a plurality of wells physically separated from each other by walls;
- making a cathode, further comprising the steps of:
- positioning a stencil with holes therein over the substrate, each of the holes positioned over one of the plurality of wells;
- and
- depositing a CNT mixture through the holes onto the into each of the plurality of wells so that the CNT mixture fills each well so as to be touching each wall defining the well;
- and
- positioning the cathode a distance from an anode comprising a phosphor on a substrate.
4 more elements
Dependencies are inferred from the claim text.