S. K. Lyubutin, V. E. Patrakov, S. N. Rukin, B. G. Slovikovsky, S. N. Tsyranov
{"title":"Spatial Inhomogeneity of Impact-Ionization Switching Process in Power Si Diode","authors":"S. K. Lyubutin, V. E. Patrakov, S. N. Rukin, B. G. Slovikovsky, S. N. Tsyranov","doi":"10.1134/s1063782624050117","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Voltage drop process in power Si diode switched to a conducting state by an impact-ionization wave, which is excited by overvoltage pulse with a subnanosecond rise time, has been investigated. In experiments, a reverse voltage pulse was applied to a diode with a diameter of 6 mm without preliminary reverse bias, which provided the average rate of voltage rise across the diode <i>dU</i>/<i>dt</i> in the range of 1–10 kV/ns. Numerical simulations showed that calculated and experimentally observed voltage waveforms are in good quantitative agreement in the case when an active area of the structure <i>S</i><sub><i>a</i></sub>, through which a switching current flows, increases with <i>dU</i>/<i>dt</i> value increasing. It was shown that at <i>dU</i>/<i>dt <</i> 2 kV/ns the active area tends to zero, and at <i>dU</i>/<i>dt ></i> 10 kV/ns it approaches the total area of the structure. Comparison with the results of similar studies shows that the increase in the active area of the structure with the increase in the <i>S</i><sub><i>a</i></sub> value does not depend on the material of the structure (silicon and gallium arsenide), the number of layers in the semiconductor structure (diodes and thyristors), and also on the value of the initial bias voltage.</p>","PeriodicalId":21760,"journal":{"name":"Semiconductors","volume":"2 1","pages":""},"PeriodicalIF":0.6000,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Semiconductors","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1134/s1063782624050117","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PHYSICS, CONDENSED MATTER","Score":null,"Total":0}
引用次数: 0
Abstract
Voltage drop process in power Si diode switched to a conducting state by an impact-ionization wave, which is excited by overvoltage pulse with a subnanosecond rise time, has been investigated. In experiments, a reverse voltage pulse was applied to a diode with a diameter of 6 mm without preliminary reverse bias, which provided the average rate of voltage rise across the diode dU/dt in the range of 1–10 kV/ns. Numerical simulations showed that calculated and experimentally observed voltage waveforms are in good quantitative agreement in the case when an active area of the structure Sa, through which a switching current flows, increases with dU/dt value increasing. It was shown that at dU/dt < 2 kV/ns the active area tends to zero, and at dU/dt > 10 kV/ns it approaches the total area of the structure. Comparison with the results of similar studies shows that the increase in the active area of the structure with the increase in the Sa value does not depend on the material of the structure (silicon and gallium arsenide), the number of layers in the semiconductor structure (diodes and thyristors), and also on the value of the initial bias voltage.
期刊介绍：
Publishes the most important work in semiconductor research in the countries of the former Soviet Union. Covers semiconductor theory, transport phenomena in semiconductors, optics, magnetooptics, and electrooptics of semiconductors, semiconductor lasers and semiconductor surface physics. The journal features an extensive book review section.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
