Author:
Yu Wei ,Liu Li-Hui ,Hou Hai-Hong ,Ding Xue-Cheng ,Han Li ,Fu Guang-Sheng ,
Abstract
Silicon nitride films(SiN) are deposited by helicon-wave plasma-enhanced chemical vapour deposition(HWP-CVD) under the condition that a gas mixture of SiH4 and N2 is required.The influence of experimental parameters on the properties of the sample films is investigated.The parameters such as bond structure,thickness and refractivity of SiN films are measured by using Fourier transform infrared(FTIR) spectroscopy,ultraviolet-visible spectroscopy and ellipsometer detection technique.Results show that SiN films with a low hydrogen content can be prepared by HWP-CVD at a higher rate and lower substrate temperature,and the main bond mode in the deposited SiN films is Si—N stretching mode.At lower reactive gas pressure,the deposition rate is promoted and the density of the sample films increases.The appropriate increase in N2/SiH4 ratio is beneficial to the decrease of the H content in SiN films.
Publisher
Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences
Subject
General Physics and Astronomy
Cited by
11 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献