公开(公告)号：US09666401B2

公开(公告)日：2017-05-30

申请号：US14929792

申请日：2015-11-02

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： So Ra Park ,  Yoon Ho Song ,  Jin Woo Jeong ,  Jae Woo Kim ,  Min Sik Shin

IPC: H01J21/10 ,  H01J3/02 ,  H01J29/46 ,  H01J19/24

CPC classification number: H01J3/021 ,  H01J29/46 ,  H01J29/467 ,  H01J2203/0216 ,  H01J2203/0232

Abstract: The present disclosure may provide a field emission device with an enhanced beam convergence. For this, the device may include a gate structure disposed between a cathode electrode and an anode electrode, wherein the gate structure includes a gate electrode and an atomic layer sheet disposed on the gate electrode, the gate electrode facing an emitter and having at least one aperture formed therein.