公开(公告)号：US20240331967A1

公开(公告)日：2024-10-03

申请号：US18407388

申请日：2024-01-08

Applicant: KOREA BASIC SCIENCE INSTITUTE

Inventor： Myoung Choul Choi ,  Woo Jun Byeon ,  Byeong Jun Cha

IPC: H01J37/08

CPC classification number: H01J37/08 ,  H01J2237/032 ,  H01J2237/0805 ,  H01J2237/208

Abstract: A liquid metal ion source device for using bismuth and an alloy of the bismuth is provided. The liquid metal ion source device includes a base formed of an electrically insulating material, two electrodes connected to the base and configured to supply current, a needle mounted on the base and configured to pass through the base, a filament including a pair of connection rods connected to the two electrodes, respectively, a pair of support rods formed to be extended from the pair of connection rods, respectively, and provided in a direction away from the base and towards the needle, and a filament head connecting the pair of support rods to one another and having a shape curved toward the base, and a reservoir configured to accommodate at least a portion of the filament head inside the reservoir and store a liquid metal.