The improvement of atomic layer deposited SiO2/4H-SiC interfaces via a high temperature forming gas anneal

The improvement of atomic layer deposited SiO2/4H-SiC interfaces via a high temperature forming gas anneal
复制标题

通过高温合成气体退火改善原子层沉积的 SiO2/4H-SiC 界面

DOI:
10.1016/j.mssp.2020.105527
复制
发表时间:
2021
影响因子:
4.1
通讯作者:
Renz A
Renz A
中科院分区:
工程技术3区
文献类型:
--
作者:
Renz A

文献摘要

参考文献

被引文献

相似文献

本文报道了用原子层淀积法在4 H-SiC上淀积SiO2层,并在淀积后进行退火处理。电容-电压测量显示良好的电气性能,相比于在N2 O中生长的热氧化物,平带电压值平均为-0.29 V,低正移动的离子电荷密度为10 10 cm− 2。XPS分析揭示了FG退火的样品具有与其他PDA相比最富Si的界面,C:Si比为0.72,允许更多的Si键被终止。西姆斯分析发现,在FG退火样品的界面附近,氢的浓度增加,峰值浓度为2.12× 10 21 cm− 3。结果表明,SiO2/4 H-SiC界面陷阱态的氢钝化是SiO2/4 H-SiC电性能提高的主要原因。
This letter reports on the improvement of a SiO 2 layer formed by atomic layer deposition on 4H-SiC, using a post-deposition anneal in forming gas ambient. Capacitance–voltage measurements revealed good electrical properties, compared to a thermal oxide which was grown in N 2 O, with flatband voltage values averaging at-0.29 V and a low positive mobile ion charge density in the order of 10 10 cm− 2. XPS analysis revealed the FG annealed sample to have the most Si rich interface comparatively to other PDAs, with a C: Si ratio of 0.72, allowing more Si bonds to be terminated. SIMS analysis identified an increase in hydrogen near the interface of the FG-annealed sample with a peak concentration of 2.12× 10 21 cm− 3. It is concluded that the improvement in electrical performance is due to the hydrogen passivating trap states at the SiO 2/4H-SiC interface.
DOI: --
发表时间: 2010
期刊:
影响因子: --
作者:
Z. Chen;A. Ahyi;X. Zhu;M. Li;T. Isaacs;J. Williams;L. Feldman
通讯作者: L. Feldman
DOI: 10.4028/www.scientific.net/msf.858.623
发表时间: 2016
期刊: Materials Science Forum
影响因子: --
作者:
H. Rong;Y. Sharma;T. Dai;Fan Li;M. Jennings;S. Russell;D. Martin;P. Mawby
通讯作者: P. Mawby
(特邀)SiC MOS界面状态:Si面和C面的区别
DOI: --
发表时间: 2013
期刊:
影响因子: --
作者:
T. Umeda;M. Okamoto;R. Kosugi;S. Harada;R. Arai;Yoshihiro Sato;T. Makino;T. Ohshima
通讯作者: T. Ohshima
4H-SiC/SiO2 界面缺陷的微观结构和电活性:氧化多孔 SiC 的 EPR 研究
DOI: --
发表时间: 2004
期刊:
影响因子: --
作者:
H. J. von Bardeleben;J. Cantin;Y. Shishkin;R. Devaty;W. J. Choyke
通讯作者: W. J. Choyke
使用原子层沉积在 4H-SiC 上开发高质量栅极氧化物
DOI: --
发表时间: 2020
期刊: --
影响因子: --
作者:
A. B. Renz.
通讯作者: A. B. Renz.