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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">zldm</journal-id><journal-title-group><journal-title xml:lang="ru">Заводская лаборатория. Диагностика материалов</journal-title><trans-title-group xml:lang="en"><trans-title>Industrial laboratory. Diagnostics of materials</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1028-6861</issn><issn pub-type="epub">2588-0187</issn><publisher><publisher-name>ООО «Издательство «ТЕСТ-ЗЛ»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.26896/1028-6861-2021-87-1-35-44</article-id><article-id custom-type="elpub" pub-id-type="custom">zldm-1348</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ИССЛЕДОВАНИЕ СТРУКТУРЫ И СВОЙСТВ. ФИЗИЧЕСКИЕ МЕТОДЫ ИССЛЕДОВАНИЯ И КОНТРОЛЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>TESTING OF STRUCTURE AND PARAMETERS. PHYSICAL METHODS OF TESTING AND QUALITY CONTROL</subject></subj-group></article-categories><title-group><article-title>Диагностика полупроводниковых структур методом электрохимического вольт-фарадного профилирования</article-title><trans-title-group xml:lang="en"><trans-title>Diagnostics of semiconductor structures by electrochemical capacitance-voltage profiling technique</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Яковлев</surname><given-names>Г. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Yakovlev</surname><given-names>G. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Георгий Евгеньевич Яковлев</p><p>197376, г. С.-Петербург, ул. Профессора Попова, д. 5</p></bio><bio xml:lang="en"><p>Georgy E. Yakovlev</p><p>5, ul. Prof. Popova, St. Petersburg, 197376</p></bio><email xlink:type="simple">geyakovlev@etu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Фролов</surname><given-names>Д. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Frolov</surname><given-names>D. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дмитрий Сергеевич Фролов</p><p>197376, г. С.-Петербург, ул. Профессора Попова, д. 5</p></bio><bio xml:lang="en"><p>Dmitry S. Frolov</p><p>5, ul. Prof. Popova, St. Petersburg, 197376</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Зубков</surname><given-names>В. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Zubkov</surname><given-names>V. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Василий Иванович Зубков</p><p>197376, г. С.-Петербург, ул. Профессора Попова, д. 5</p></bio><bio xml:lang="en"><p>Vasily I. Zubkov</p><p>5, ul. Prof. Popova, St. Petersburg, 197376</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Санкт-Петербургский государственный электротехнический университет «ЛЭТИ»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>St. Petersburg State Electrotechnical University «LÉTI»</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>18</day><month>01</month><year>2021</year></pub-date><volume>87</volume><issue>1</issue><fpage>35</fpage><lpage>44</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Яковлев Г.Е., Фролов Д.С., Зубков В.И., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Яковлев Г.Е., Фролов Д.С., Зубков В.И.</copyright-holder><copyright-holder xml:lang="en">Yakovlev G.E., Frolov D.S., Zubkov V.I.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.zldm.ru/jour/article/view/1348">https://www.zldm.ru/jour/article/view/1348</self-uri><abstract><p>Для приборов с гетероструктурами в качестве активных элементов особое значение имеют свойства границ раздела, которые зачастую играют определяющую роль в работе таких устройств. Совершенствование характеристик полупроводниковых приборов невозможно без детального анализа процессов, происходящих на интерфейсах гетеропереходов. Вместе с тем результаты в значительной степени зависят от чистоты исходных материалов и технологии изготовления слоев. Кроме того, непрерывно возрастают требования к составу примеси и ее распределению. Соответственно, повышаются требования к методам контроля распределения примеси и основных носителей заряда как на этапе лабораторной разработки структуры, так и на стадии производства полупроводникового прибора. В данной работе представлены результаты диагностики распределения концентрации основных носителей заряда в полупроводниковых структурах методом электрохимического вольт-фарадного профилирования (ECV-профилирования). Метод не требует специальной подготовки образцов, нанесения контактов для проведения испытаний и позволяет получать данные не только о распределении примеси, но и о распределении свободных носителей заряда. Он также дает возможность верифицировать толщины слоев полупроводниковых гетероструктур. Для повышения разрешения метода проведена модификация стандартного электрохимического профилометра. Приведены данные картографирования подложечной структуры GaAs, профили распределения концентрации основных носителей заряда в структурах SiC, GaAs структуре с p-n-переходом, pHEMT-гетероструктуре, GaN гетероструктуре с множественными квантовыми ямами и гетероструктурном солнечном элементе на основе кремния. Полученные результаты могут быть использованы для анализа физических свойств и явлений в полупроводниковых приборах, использующих квантово-размерные слои, а также для совершенствования и улучшения параметров существующих электронных приборов.</p></abstract><trans-abstract xml:lang="en"><p>The properties of interfaces in the heterostructures which frequently govern their operation are of particular importance for the devices containing heterostructures as active elements. Any further improving of the characteristics of semiconductor devices is impossible without a detail analysis of the processes occurring at the interfaces of heterojunctions. At the same time, the results largely depend on the purity of the starting materials and the technology of layer manufacturing. Moreover, the requirements to the composition and distribution of the impurity steadily get stringent. Therefore, the requirements regarding the methods of the impurity control and carrier distribution also become tougher both in the stage of laboratory development of the structure and in various stages of manufacturing of semiconductor devices. Electrochemical capacitance-voltage profiling is distinguished among the methods of electrical diagnostics of semiconductors by the absence of special preparation of the structures and deposition of the contacts to perform measurements, thus providing for gaining information not only about the impurity distribution but also about the distribution of free carriers. The goal of this work is to perform precise measurements of the profiles of free carrier distribution in semiconductor structures of different types, and demonstrate the measuring capabilities of a modern technique for concentration distribution diagnostics, i.e., electrochemical capacitance-voltage profiling. The method allows verification of the layer thickness in semiconductor heterostructures and provide a useful and informative feedback to technologists. To increase the resolution of the method and broad up the range of available test frequencies, a standard electrochemical profiler has been modified. Mapping data for GaAs substrate structure, the profiles of the concentration distribution of the majority charge carriers in SiC structures, GaAs structure with a p – n junction, pHEMT heterostructure, GaN heterostructure with multiple quantum wells, and in a silicon-based solar cell heterostructure are presented. The obtained results can be used to analyze the physical properties and phenomena in semiconductor devices with quantum-sized layers, as well as to improve and refine the parameters of existing electronic devices.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>электрохимическое вольт-фарадное профилирование (ECV-профилирование)</kwd><kwd>диагностика</kwd><kwd>полупроводники</kwd></kwd-group><kwd-group xml:lang="en"><kwd>ECV-profiling</kwd><kwd>diagnostics</kwd><kwd>semiconductors</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Авторы выражают благодарность А. В. Соломниковой (СПбГЭТУ «ЛЭТИ») за помощь в проведении АСМ-измерений, а также за ценные консультации в написании статьи.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Blood P., Orton J. The electrical characterization of semiconductors: majority carriers and electron states. — London: Acad. Press, 1992. — 768 p.</mixed-citation><mixed-citation xml:lang="en">Blood P., Orton J. The electrical characterization of semiconductors: majority carriers and electron states. — London: Acad. Press, 1992. — 768 p.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Ambridge T., Faktor M. An automatic carrier concentration profile plotter using an electrochemical technique / J. Appl. Electrochem. 1975. Vol. 5. N 4. P. 319 – 328. 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