声电荷输运的一维理论分析

One Dimensional analysis of acoustic charge transport

砷化镓声电荷输运器件自从１９８２年问世以来得到了飞速的发展，它能够得到极高的运算速度和传输效率，正发展成为新一代的高速信号微处理器，它在通信、电子战、电子对抗等实时信号处理方面有着广泛的应用前景。本文给出了砷化镓中埋沟声电行输运过程的一维理论模型，并用该模型分析了Ｓｃｈｏｔｔｋｙ－Ｎ结构器件的电行输运特性与器件结构参数、工作状态的关系，如电荷包边界信息、电荷包内电有分布及电荷输运量。声电荷输运器件传送的电荷量与传统的埋沟电行耦合器件类似．

Since 1982,acoustic charge transport(ACT)technology was fast developed. ACT devices have extremely high operating speed and transfer efficiency,and have wide applications for communicatious, elecotronic warfare and electronic counter measures. This paper described a onedimensional theoretical model for acoustic charge transport process in buried channel. With this model,We analyzed the charge fransfer properties of ACT devices. The charge packet boundary,charge distribution and charge transfer capacity were gives as functions of device structureparameters and operation status. The charge capacity of an ACT device is similar to that of a conventional buried channel charge coupled deviCe (CCD).