Emission device and method for forming

摘要

An emission device comprises electron emitter structures (212) having varied geometries; and a conducting layer (216) deposited on the electron emitter structures. Each electron emitter structure has one or more tunneling sites. The conducting layer defines an opening for each tunneling site. An independent claim is also included for a method of forming an emission device, comprising forming electron emitter structures; selectively depositing markers via an electrodeposition process on tunneling sites of the electron emitter structures; forming a conducting layer on the electron emitter structure; and removing the markers from the tunneling sites after formation of the conducting layer to provide openings in the conducting layer to expose the tunneling sites.