Abstract
In the present work, we report on the fabrication of high quality microcrystalline Si thin films by high-density PECVD technique. The typical deposition rate of the HD-PECVD μ-Si thin films was greater than 350 Å/min in the H2/SiH4 ratio range of 20–100. For a 150-nm-thick film deposited at a H2/SiH4 ratio of 20, the typical microcrystalline volume fraction and the average crystallite size corresponding to <111> orientation were 75% and 160 A, respectively. The observed growth and properties of the μ-Si thin films show the potential of the high-density PECVD technique for the low temperature processing of high quality films with superior control of bulk and interfacial characteristics.
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Joshi, P.C., Voutsas, A.T. & Hartzell, J.W. High Density Plasma Processing of Microcrystalline Si Thin Films. MRS Online Proceedings Library 862, 193 (2004). https://doi.org/10.1557/PROC-862-A19.3
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