Abstract:
PROBLEM TO BE SOLVED: To provide an ion source.SOLUTION: An ion source comprises a vacuum vessel, a field emission electron source, and an ion electrode. The ion electrode is arranged at one end of the vacuum vessel. The field emission electron source is arranged in the vacuum vessel. The field emission electron source includes an insulation substrate, an electron extraction electrode, a secondary electron emission layer, a cathode plate, and a field emission unit. The electron extraction electrode and the secondary electron emission layer are arranged on/above the insulation substrate. The cathode plate is separated from the electron extraction electrode in an insulated manner, and part of the cathode plate faces the secondary electron emission layer. The cathode plate includes one electron emission portion. The field emission unit is arranged on a surface facing the secondary electron emission layer of the cathode plate.
Abstract:
PROBLEM TO BE SOLVED: To provide a manufacturing method capable of obtaining a field-emission type electron source having with excellent electron emission characteristics without requiring an annealing treatment and having long life. SOLUTION: The manufacturing method is provided with an ion implantation process for implanting carbon ions 40 at least to a tip part of an emitter 18 after forming the emitter 18 mainly composed of silicon. The coordinates of points P 1 to P 6 on an orthogonal coordinate with one axis as representing energy (its unit is keV) of the carbon ion 40 and the other axis as representing an implantation amount (its unit is ×10 17 ions/cm 2 ) are shown as (energy, implantation amount), the carbon ion 40 is implanted under a condition in an area surrounded by connecting straight lines of 6 points of P 1 (5, 0.8), P 2 (5, 1.5), P 3 (10, 2.5), P 4 (15, 3.0), P 5 (15, 2.0), and P 6 (10, 1.6). COPYRIGHT: (C)2009,JPO&INPIT
Abstract in simplified Chinese:使一电子源形成于具有相对第一表面及第二表面之一硅基板上。将至少一场发射体制备于该硅基板之该第二表面上以增强电子之发射。使用使氧化及缺陷最小化之一进程来将一薄的连续硼层直接安置于该场发射体之输出表面上以防止硅之氧化。该场发射体可呈现诸如棱锥及圆形晶须之各种形状。可将一或若干选用闸极层放置于该场发射体尖端之高度处或放置成略低于该场发射体尖端之高度以达成对发射电流之快速准确控制及高发射电流。该场发射体可经p型掺杂且经组态以在一反向偏压模式中操作或该场发射体可经n型掺杂。
Abstract in simplified Chinese:本发明提供一种奈米碳管微尖结构,其包括:一绝缘基底,该绝缘基底具有一表面,该表面具有一边缘;一图案化奈米碳管膜结构,该图案化奈米碳管膜结构部分设置于该绝缘基底的所述表面,该图案化奈米碳管膜结构包括两个条形臂,该两个条形臂在端部相连以形成一尖端,该尖端突出该绝缘基底所述表面的边缘并悬空设置,该图案化奈米碳管膜结构包括复数基本平行于该绝缘基底所述表面的奈米碳管。