非均匀寿命分布电导调制基区中非平衡载流子的WKB解  

A WKB solution of excess carriers in conductivity modulation base with non-uniform lifetime

作　　者：方健[1] 林薇[1] 周贤达[1] 李肇基[1] 

机构地区：[1]电子科技大学微电子与固体电子学院,成都610054

出　　处：《物理学报》2006年第7期3360-3362,共3页Acta Physica Sinica

摘　　要：针对非均匀寿命分布情况,建立了描述电导调制基区的双极输运方程,并利用Liouville_Green变换获得该方程在不同边界条件下的WKB解.其结果可用于局域寿命控制下电导调制器件的建模分析.Base on the establishment of an ambipolar transport equation of conductivity modulation base with non-uniform lifetime, WKB solutions of excess carrier profiles under different boundary conditions have been obtained by using Liouville-Green transform. The results can be used in modeling of conductivity modulation power devices under localized lifetime control.

关 键 词：寿命控制 电导调制 非平衡载流子 WKB 

分 类 号：O471[理学—半导体物理]