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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">10.17073/1609-3577-2021-2-107-118</article-id><article-id custom-type="elpub" pub-id-type="custom">mateltech-439</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 особенностей PECVD процессов осаждения SiNx на электрические параметры структур SiNx/AlGaN/GaN</article-title><trans-title-group xml:lang="en"><trans-title>Influence of PECVD features of SiNx deposition processes on electrical parameters of SiNx/AlGaN/GaN structures</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 proezd, Moscow 105187</p><p>Kira L. Еnisherlova — Dr. Sci. (Eng.), Head of 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 proezd, Moscow 105187</p><p>Lev A. Seidman — Cand. Sci. (Eng.), Leading Researcher</p></bio><email xlink:type="simple">seid1@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>Темпер</surname><given-names>Э. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Temper</surname><given-names>E. T.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Окружной проезд, д. 27, Москва, 105187</p><p>Темпер Элла Моисеевна — старший научный сотрудник</p></bio><bio xml:lang="en"><p>27 Okruzhnoy proezd, Moscow 105187</p><p>Ella M. Temper — Senior Researcher</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>Концевой</surname><given-names>Ю. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kontsevoy</surname><given-names>Yu. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Окружной проезд, д. 27, Москва, 105187</p><p>Концевой Юлий Абрамович — доктор техн. наук, профессор, главный научный сотрудник</p></bio><bio xml:lang="en"><p>27 Okruzhnoy proezd, Moscow 105187</p><p>Yuliy A. Kontsevoy — Dr. Sci. (Eng.), Chief Researcher, Professor</p></bio><email xlink:type="simple">kontsevoy@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>2021</year></pub-date><pub-date pub-type="epub"><day>30</day><month>08</month><year>2021</year></pub-date><volume>24</volume><issue>2</issue><fpage>107</fpage><lpage>118</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Енишерлова К.Л., Сейдман Л.А., Темпер Э.М., Концевой Ю.А., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Енишерлова К.Л., Сейдман Л.А., Темпер Э.М., Концевой Ю.А.</copyright-holder><copyright-holder xml:lang="en">Еnisherlova K.L., Seidman L.A., Temper E.T., Kontsevoy Y.A.</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/439">https://met.misis.ru/jour/article/view/439</self-uri><abstract><p>Исследовано влияние процессов плазмохимического осаждения (PECVD) пленок SiNx на электрические параметры структуры диэлектрик/АlGaN/GaN. Дан анализ влияния состава формируемых пленок, воздействия дополнительной обработки поверхности гетероструктур в плазме азота перед осаждением диэлектрика, а также влияния подачи ВЧ-смещения при такой обработке на особенности С—V- и I—V-характеристик структур SiNx/АlGaN/GaN. Установлено, что для пленок с соотношением концентраций азота и кремния 60 и 40 %, а также с повышенным содержанием кислорода характерно уменьшение фиксированного положительного заряда в этих структурах, однако, на I—V-характеристиках структур наблюдается появление пульсаций тока. Выявлено как режимы процесса плазмохимии влияют на такие параметры осцилляций, как период, амплитуда, длина участка I—V-характеристики, на котором наблюдаются осцилляции. Предложено возможное объяснение причин появления характерных пульсаций. Установлено, что дополнительное воздействие азотной плазмы на поверхность гетероструктуры до напуска в камеру моносилана приводит к изменению величины и знака фиксированного заряда, а также к уменьшению концентрации свободных носителей в канале двумерного газа гетероструктур SiNx/АlGaN/GaN. Экспериментально показано, как технологические особенности процессов PECVD осаждения и подготовки поверхности могут влиять на электрические параметры формируемых гетероструктур.</p></abstract><trans-abstract xml:lang="en"><p>In this work, we studied the influence of the processes of plasma-chemical deposition of SiNx films on the electrical parameters of the dielectric/AlGaN/GaN structure. The effect of the composition of the formed films, the effect of additional surface treatment of heterostructures in nitrogen plasma prior to dielectric deposition, as well as the effect of the RF bias supply during this treatment on the C-V and I-V characteristics of the SiNx/AlGaN/GaN structures were analyzed. It was found that for films with a ratio of nitrogen and silicon concentrations of 60 % and 40 %, as well as with an increased oxygen content, a decrease in the value of a fixed positive charge in these structures is characteristic, but the appearance of current pulsations is observed on the I-V characteristics of the structures. It was revealed how the modes of the plasma chemistry process affect such parameters of oscillations as the period, amplitude, length of the section of the I-V characteristic, where oscillations are observed. A possible explanation of the reasons for the appearance of characteristic pulsations is proposed. It has been established that the additional action of nitrogen plasma on the surface of the heterostructure before the monosilane is introduced into the chamber leads to a change in the magnitude and sign of the fixed charge and to a decrease in the concentration of free carriers in the channel of a two-dimensional gas of SiNx/AlGaN/GaN heterostructures. It is shown experimentally how the technological features of the deposition and surface preparation processes can affect the electrical parameters of the formed heterostructures.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>гетероструктура</kwd><kwd>пассивирующее покрытие</kwd><kwd>метод осаждения PECVD</kwd><kwd>С—V-характеристика</kwd><kwd>НЕМТ</kwd><kwd>I—V-характеристика</kwd><kwd>пьезозаряд</kwd><kwd>2DEG</kwd></kwd-group><kwd-group xml:lang="en"><kwd>heterostructure</kwd><kwd>passivating coating</kwd><kwd>PECVD deposition method</kwd><kwd>C-V characteristic</kwd><kwd>HEMT transistor</kwd><kwd>I-V characteristic</kwd><kwd>piezo charge</kwd><kwd>2DEG</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Chevtchenko S.A., Reshchikov M.A., Fan Q., Ni X., Moon Y.T., Baski A.A., Morkoç H. Study of SiNx and SiO2 passivation of GaN surfaces. J. Appl. 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