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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">mateltech</journal-id><journal-title-group><journal-title xml:lang="ru">Известия высших учебных заведений. Материалы электронной техники</journal-title><trans-title-group xml:lang="en"><trans-title>Izvestiya Vysshikh Uchebnykh Zavedenii. Materialy Elektronnoi Tekhniki = Materials of Electronics Engineering</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1609-3577</issn><issn pub-type="epub">2413-6387</issn><publisher><publisher-name>MISIS</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17073/1609-3577-2022-3-227-237</article-id><article-id custom-type="elpub" pub-id-type="custom">mateltech-491</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>Эпитаксиальные слои и многослойные композиции</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>EPITAXIAL LAYERS AND MULTILAYERED COMPOSITIONS</subject></subj-group></article-categories><title-group><article-title>Влияние обработки в азотной плазме на электрические параметры гетероструктур AlGaN/GaN</article-title><trans-title-group xml:lang="en"><trans-title>Effect of treatment in nitrogen plasma on the electrical parameters of AlGaN/GaN heterostructures</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>Енишерлова</surname><given-names>К. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Еnisherlova</surname><given-names>K. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Окружной проезд, д. 27, Москва, 105187</p><p>Енишерлова Кира Львовна — доктор техн. наук, начальник лаборатории</p></bio><bio xml:lang="en"><p>27 Okruzhnoy Passage, Moscow 105187</p><p>Kira L. Еnisherlova — Dr. Sci. (Eng.), Head of the Laboratory</p></bio><email xlink:type="simple">enisherlova@pulsarnpp.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>Сейдман</surname><given-names>Л. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Seidman</surname><given-names>L. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Окружной проезд, д. 27, Москва, 105187</p><p>Сейдман Лев Александрович — канд. техн. наук, ведущий научный сотрудник</p></bio><bio xml:lang="en"><p>27 Okruzhnoy Passage, Moscow 105187</p><p>Lev A. Seidman — Cand. Sci. (Eng.), Leading Researcher</p></bio><email xlink:type="simple">seid@yandex.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>Боголюбова</surname><given-names>С. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Bogolyubova</surname><given-names>S. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Окружной проезд, д. 27, Москва, 105187</p><p>Боголюбова Светлана Юрьевна — инженер 1 категории</p></bio><bio xml:lang="en"><p>27 Okruzhnoy Passage, Moscow 105187</p><p>Svetlana Yu. Bogolyubova — 1st Category Engineer</p></bio><email xlink:type="simple">enisherlova@pulsarnpp.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>АО «НПП «Пульсар»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>JSC “S&amp;PE “Pulsar”</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>28</day><month>09</month><year>2022</year></pub-date><volume>25</volume><issue>3</issue><fpage>227</fpage><lpage>237</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Енишерлова К.Л., Сейдман Л.А., Боголюбова С.Ю., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Енишерлова К.Л., Сейдман Л.А., Боголюбова С.Ю.</copyright-holder><copyright-holder xml:lang="en">Еnisherlova K.L., Seidman L.A., Bogolyubova S.Y.</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://met.misis.ru/jour/article/view/491">https://met.misis.ru/jour/article/view/491</self-uri><abstract><p>В работе исследовалось влияния глубоких уровней, образующихся на границе раздела SiON/AlGaN при воздействии азотной плазмы в процессе осаждения пленки SiОN, на электрические параметры структур SiОN/АlGaN/GaN. Проведены измерения концентрации и подвижности свободных носителей в 2DEG и емкостных параметров структур. Экспериментально установлено, что кратковременное воздействие азотной плазмы (25 и 50 с) не меняет концентрацию сводных носителей в 2DЕG, но приводит к уменьшению величины их подвижности. Рассчитана величина заряда, который может образоваться на границе SiON/AlGaN. С помощью С–V-измерений экспериментально показано, как изменяется заряд в системе SiОN/АlGaN/GaN в процессе одного цикла измерений при разных диапазонах напряжения. На основе рассмотрения зонных диаграмм системы предложены возможные объяснения процессов перераспределения заряда в анализируемой системе при определенных воздействиях.</p></abstract><trans-abstract xml:lang="en"><p>In this work, the influence of deep levels formed at the SiON/AlGaN interface under the nitrogen plasma action during the deposition of a SiON film on the electrical parameters of SiON/AlGaN/GaN structures were studied. The concentration and mobility of free carriers in 2DEG and the capacitance parameters of the structures were measured. It has been experimentally established that short-term action of nitrogen plasma (25 and 50 sec.) does not change the concentration of free carriers in 2DEG, but leads to a decrease in their mobility. The value of the charge that can form at the SiON/AlGaN interface has been calculated. With the help of C–V measurements, it was experimentally shown how the charge in the SiON/AlGaN/GaN system changes during one measurement cycle at different voltage ranges. Based on the consideration of the energy band diagrams of the system, possible explanations for the charge redistribution processes in the analyzed system under certain actions are proposed.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>НЕМТ-приборы</kwd><kwd>коллапс</kwd><kwd>дисперсия</kwd><kwd>глубокие уровни</kwd><kwd>точечные дефекты плотность и подвижность свободных носителей</kwd><kwd>зонные диаграммы</kwd><kwd>поляризационный заряд</kwd></kwd-group><kwd-group xml:lang="en"><kwd>HEMT devices</kwd><kwd>collapse</kwd><kwd>dispersion</kwd><kwd>deep levels</kwd><kwd>point defects</kwd><kwd>density and mobility of free carriers</kwd><kwd>band diagrams</kwd><kwd>polarization charge</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Авторы выражают благодарность за обсуждение результатов В.Г. Горячеву и Э.М. Темпер</funding-statement><funding-statement xml:lang="en">he authors are grateful for the discussion of the results of V.G. Goryachev and E.M. 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