公开(公告)号：US20180025885A1

公开(公告)日：2018-01-25

申请号：US15548321

申请日：2016-02-04

申请人： Hitachi High-Technologies Corporation

发明人： Yuta IMAI ,  Hideo MORISHITA ,  Toshihide AGEMURA

IPC分类号： H01J37/12 ,  H01J37/20 ,  H01J37/08 ,  H01J37/28 ,  H01J37/06

CPC分类号： H01J37/12 ,  H01J37/06 ,  H01J37/08 ,  H01J37/145 ,  H01J37/20 ,  H01J37/28 ,  H01J2237/08 ,  H01J2237/121 ,  H01J2237/244 ,  H01J2237/2801

摘要： This composite charged particle beam device comprises a first charged particle beam column (6), a second charged particle beam column (1) which is equipped with a deceleration system, and is equipped with a detector (3) inside the column, a test piece stage (10) on which a test piece (9) is placed, and an electric field correction electrode (13) which is provided around the tip of the first charged particle beam column, wherein the electric field correction electrode is an electrode that corrects the electric field distribution formed in the vicinity of the test piece, and the electric field correction electrode is positioned between the test piece and the first charged particle beam column, and on the opposite side from the second charged particle beam column with respect to the optical axis of the first charged particle beam column.

公开(公告)号：US20160104597A1

公开(公告)日：2016-04-14

申请号：US14787263

申请日：2014-04-14

申请人： HITACHI HIGH-TECHNOLOGIES CORPORATION

发明人： Yuta IMAI ,  Takashi OHSHIMA ,  Hideo MORISHITA

IPC分类号： H01J37/073 ,  H01J37/145 ,  H01J37/28 ,  H01J37/20 ,  H01J29/48 ,  H01J27/02

CPC分类号： H01J37/073 ,  H01J27/02 ,  H01J27/26 ,  H01J29/481 ,  H01J37/06 ,  H01J37/063 ,  H01J37/08 ,  H01J37/145 ,  H01J37/20 ,  H01J37/28 ,  H01J2237/062 ,  H01J2237/06341 ,  H01J2237/06375 ,  H01J2237/0802 ,  H01J2237/1508 ,  H01J2237/2007 ,  H01J2237/2801

摘要： The purpose of the present invention is to provide a charged particle gun using merely an electrostatic lens, said charged particle gun being relatively small and having less aberration, and to provide a field emission-type charged particle gun having high luminance even with a high current. This charged particle gun has: a charged particle source; an acceleration electrode that accelerates charged particles emitted from the charged particle source; a control electrode, which is disposed further toward the charged particle source side than the acceleration electrode, and which has a larger aperture diameter than the aperture diameter of the acceleration electrode; and a control unit that controls, on the basis of a potential applied to the acceleration electrode, a potential to be applied to the control electrode.

摘要翻译： 本发明的目的是提供一种仅使用静电透镜的带电粒子枪，所述带电粒子枪相对较小并且具有较小的像差，并且提供即使具有高电流也具有高亮度的场致发射型带电粒子枪 。 该带电粒子枪具有：带电粒子源; 加速电极，其加速从带电粒子源发射的带电粒子; 控制电极，其设置成比加速电极更加朝向带电粒子源侧，并且具有比加速电极的开口直径大的孔径; 以及控制单元，其基于对加速电极施加的电位控制施加到控制电极的电位。