Monitoring the homogeneity of semiconductor films during probe measurements of electrical conductivity
The paper discusses the basic expressions that make it possible to determine the value of specific electrical conductivity in semiconductor wafers and films of rectangular and round shape using the two-probe method of direct current measurements. Based on asymptotic analysis, approximate formulas convenient for calculations are obtained for the potential difference between the measuring probes. It is shown that in most practically used cases, the proposed asymptotic formulas can be used without increasing the measurement error in cases of monitoring the uniformity of the distribution of electrical parameters of the samples under study.
Keywords
semiconductor crystal, two-probe method, electrical conductivity, boundary conditions, asymptotic analysisAuthors
| Name | Organization | |
| Zavorotnii Anatoly A. | Lipetsk State Technical University | aazavorotniy@mail.ru |
| Ershov Alexander A. | N.N. Krasovskii Institute of Mathematics and Mechanics of the Ural Branch of the Russian Academy of Sciences | ale10919@yandex.ru |
| Filippov Vladimir V. | Lipetsk State Pedagogical P. Semenov-Tyan-Shansky University; Lipetsk Cossack Institute of Technology and Management (branch) of the Moscow State University of Technology and Management named after K.G. Razumovsky (First Cossack University) | wwfilippow@mail.ru |
| Luzyanin Sergey E. | Lipetsk State Pedagogical P. Semenov-Tyan-Shansky University | luzyanin_se@mail.ru |
References
Monitoring the homogeneity of semiconductor films during probe measurements of electrical conductivity | Izvestiya vuzov. Fizika. 2025. № 2. DOI: 10.17223/00213411/68/2/9