US Patent 7842522 - CNT field emitter well

http://www.freepatentsonline.com/7842522.html

Carbon nanotube inks and pastes have been used to form electron emission structures for flat panel displays but it can be difficult to achieve uniformity of the nanotube distribution when depositing the ink. This patent from Applied Nanotech teaches a process to facilitate uniformity using well formations. Claim 1 reads:

1. A process of depositing a carbon nanotube (CNT) composition in wells formed in a cathode structure whereby a post-deposition process is not performed on the cathode structure subsequent to deposition of the CNT ink-like composition, wherein the post-deposition process removes material from the cathode structure.