新型T形边缘场致发射器件的静电分析

对一种新型Ｔ形边缘场致发射体进行了静电分析，给出了一个三极管单元的数值计算结果，在静电场的计算中采用了一种新的数值方法－非正交有限差分算法，由于所取坐标轴与边界重合，所以方法能有效地处理任意形状的场致发射体。

Electrostatic Analysis of the Newly Fabricated T Shaped Disk Edge Field Emitter Arrays

A newly fabricated T shaped disk edge field emitter is considered in this paper. Numerical results are presented for a unit cell, consisting of emitter, gate, and anode. A new algorithm, the finite difference method in a non orthogonal curvilinear coordinate system (FDM NOCCS), is used for the calculation of electrostatic field. With the boundary conforming coordinate lines, this method can deal with microemitter with various shapes efficiently. The dependence of electric field intensity and emitted current upon geometrical factors, the sketch of electron traces and I V characteristics are presented. Several suggestions are given for the geometry determination of the triode in fabrication.