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- Article name
- A diffusion current fluctuations spectral density of p-n-junctions with a short base. Part I
- Authors
- Selyakov A. Yu., , ayusel@mail.ru, Orion R&D Association, 46/2, Enthuziastov shosse, Moscow, 111123, Russia
- Keywords
- spectral density / p-n-transition / fluctuation / diffusion current / Shottky formula
- Year
- 2009 Issue 6 Pages 127 - 137
- Code EDN
- Code DOI
- Abstract
- On the basis of exact solution of Langevin equation a fluctuations spectral density of diffusion current of reverse-biased p-n-junction with short base SJd for cases ohmic and blocking contact to the base was calculated. It is shown, what similarly to the case of p-n-junction with a long base, in both cases of ohmic and blocking contact to the base in wide enough frequency range SJd determined by the formula of Schottky. Thus, on high frequencies noise of diffusion current is determined by stochastic character of scattering processes, and dominant mechanism of noise on low frequencies is determined the type of contact to the base.
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