Anode hole generation mechanisms

被引:8
作者
Ghetti, A
Alam, M
Bude, J
机构
[1] STMicroelectronics, I-20041 Agrate Brianza, Italy
[2] Agere Syst, Murray Hill, NJ 07974 USA
关键词
D O I
10.1016/S0026-2714(01)00139-1
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
According to the Anode Hole Injection model, holes generated into the anode and tunneling back to the cathode wear out the oxide leading eventually to breakdown. In this paper, anode hole creation by photo-generation and impact ionization is investigated by means of experiments and simulations. Although it has been reported recently that a large number of holes can be, photo-generated in the cathode, we experimentally show that the number of photo-generated holes in the anode is negligible with respect to the ones created by impact ionization. Then, it is shown that minority ionization (when secondary electron stays in the valence band) significantly enhances hole generation and it is at the basis of the breakdown polarity dependence. (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:1347 / 1354
页数:8
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