Methods for controlling the thickness of the epitaxial silicon layer
https://doi.org/10.18384/2949-5067-2023-3-33-42
Abstract
Aim. Review of destructive and non-destructive methods for controlling the thickness of the epitaxial silicon layer (Si). The determination of thin film parameters is an important problem for condensed matter physics. Modern methods of control, such as spherical slot, ellipsometry and IR-Fourier spectrometry, which are poorly represented in the scientific literature, are given.
Methodology. Practical experience is analyzed and the main results are presented.
Results. The main approaches to determining the thickness of epitaxial layers are summarized.
Research implications. A method for determining the thickness of the Si epitaxial film and the depth of the p–n junction with a spherical strip is considered in depth.
About the Author
T. ZakharovaRussian Federation
Tatyana I. Zakharova, Master's Degree Student
Engineering Academy
117198
ulitsa Miklukho-Maklaya 6
Moscow
References
1. Shupenev A. E., Pankova N. S., Korshunov I. S., Grigoryants A. G. [An analysis of destructive methods of thin films thickness measurement]. In: Izvestiya vysshikh uchebnykh zavedeniy. Mashinostroyeniye [Proceedings of Higher Educational Institutions. Маchine Building], 2019, no. 3 (708), pp. 32–34. DOI: 10.18698/0536-1044-2019-3-31-39.
2. Elbersen R., Tiggelaar R. M., Milbrat A., Mul G., Gardeniers H., Huskens J. Controlled Doping Methods for Radial p/n Junctions in Silicon Micropillars. In: Advanced Energy Materials, 2015, vol. 5, iss. 6, pp. 1–8. DOI: 10.1002/aenm.201401745.
3. Tompkins H. G., Irene E. A., eds. Handbook of Ellipsometry. Norwich, NY, William Andrew Publishing, 2005. 902 p.
4. Sun X., Wang S., Li L., Huo Z., Wang L., Li C., Wang Z. Measurement of stress-optic coefficients for metals in the visible to near-infrared spectrum with spectroscopic ellipsometry. In: Optics and Lasers in Engineering, 2023, vol. 161, pp. 107362. DOI: 10.1016/j.optlaseng.2022.107362.
5. Kriso C., Triozon F., Delerue C., Schneider L., Abbate F. et al. Modeled optical properties of SiGe and Si layers compared to spectroscopic ellipsometry measurements. In: Solid-State Electronics, 2017, vol. 129, pp. 93–96. DOI: 10.1016/j.sse.2016.12.011.
6. Márqueza E., Blanco E., García-Vázquezb C., Díazb J. M., Saugar E. Spectroscopic ellipsometry study of non-hydrogenated fully amorphous silicon films deposited by room-temperature radio-frequency magnetron sputtering on glass: Influence of the argon pressure. In: Journal of Non-Crystalline Solids, 2020, vol. 547, pp 120305. DOI: 10.1016/j.jnoncrysol.2020.120305.
7. Zhang J., Shi L., Zhang R., Chen J., Wu G. Spectral interference ellipsometry for film thickness measurement on transparent substrate. In: Optics and Lasers in Engineering, 2023, vol. 171, pp. 107819. DOI: 10.1016/j.optlaseng.2023.107819.
8. Hinrichs K., Sun G., Rappich J., Furchner A. Structure and chemical analysis in thin films by in situ IR ellipsometry. In: Wandelt K., Bussetti G., eds. Encyclopedia of Solid-Liquid Interfaces. USA, Elsevier, 2023, pp. 514–520. DOI: 10.1016/B978-0-323-85669-0.00019-2.
9. Zhang He, Zhang X., Hou G., Wei C., Sun J. et al. The microstructure and optical properties of p-type microcrystalline silicon thin films characterized by ex-situ spectroscopic ellipsometry. In: Thin Solid Films, 2012, vol. 521, pp. 17–21. DOI: 10.1016/j.tsf.2012.03.081.
10. Krämer M., Roodenko K., Pollakowski B., Hinrichs K., Rappich J. et al. Combined ellipsometry and X-ray related techniques for studies of ultrathin organic nanocomposite films. In: Thin Solid Films, 2010, vol. 518, iss. 19, pp. 5509–5514. DOI: 10.1016/j.tsf.2010.04.033.
11. Efimova A. I., Zaitsev V. B., Boldyrev N. Yu., Kashkarov P. K. Infrakrasnaya fur'ye-spektrometriya [Infrared Fourier spectrometry]. Moscow, Faculty of Physics of Lomonosov Moscow State University Publ., 2008. 133 p.
12. Xu J., Gowen A. A. Time series Fourier transform infrared spectroscopy for characterization of water vapor sorption in hydrophilic and hydrophobic polymeric films. In: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2021, vol. 250, pp. 119371. DOI: 10.1016/j.saa.2020.119371.