摘要
采用Silvaco软件,利用二维有限元方法,仿真得到LED的电学等特性。比较3种不同尺寸的LED器件内的电流分布,得到电流密度与L的关系曲线,发现减小电流扩展长度L可提高电流的均匀性。模拟了5种不同电极结构的1 mm×1 mm功率LED,发现五插指电极结构的电流分布最均匀。
Electrical properties of a LED（light emitting diode） is simulated with the software of SILVACO,by using two-dimensional finite element method.The current distributions of three LEDs of different size are compared,and the relationship between the current density and L is found,which indicates that current uniformity can be improved by reducing the current expansion length（L）.Five different kinds of power LEDs with a chip size of 1 mm×1 mm and with different electrode structures are simulated and compared,and the optimal electrode structure is found.
出处
《电子科技》
2010年第8期43-46,共4页
Electronic Science and Technology
基金
GaN高亮度蓝光LED产业化基金资助项目(HX0101050116)
