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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">trudyniisi</journal-id><journal-title-group><journal-title xml:lang="ru">Труды НИИСИ</journal-title><trans-title-group xml:lang="en"><trans-title>SRISA Proceedings</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2225-7349</issn><issn pub-type="epub">3033-6422</issn><publisher><publisher-name>НИЦ «КУРЧАТОВСКИЙ ИНСТИТУТ» - НИИСИ</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">trudyniisi-96</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>МИКРО- И НАНОЭЛЕКТРОНИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MICRO- AND NANOELECTRONICS</subject></subj-group></article-categories><title-group><article-title>Чувствительность распределения потенциала в канале кремниевых GAA нанотранзисторов к аномальному поведению зернистости металлического затвора</article-title><trans-title-group xml:lang="en"><trans-title>Sensitivity of the Potential Distribution in the Channel of Silicon GAA Nanotransistors to the Anomalous Behavior of the Metal Gate Grain</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>Масальский</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Masalsky</surname><given-names>N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</p></bio><email xlink:type="simple">volkov@niisi.ras.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">НИЦ «Курчатовский институт» – НИИСИ<country>Россия</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>09</day><month>12</month><year>2025</year></pub-date><volume>14</volume><issue>4</issue><fpage>47</fpage><lpage>53</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Масальский Н.В., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Масальский Н.В.</copyright-holder><copyright-holder xml:lang="en">Masalsky N.</copyright-holder><license 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.t-niisi.ru/jour/article/view/96">https://www.t-niisi.ru/jour/article/view/96</self-uri><abstract><p>Обсуждается влияние аномальной зернистости металлического затвора кремниевого полевого GAA нанотранзистора с цилиндрической геометрией на распределение потенциала в его рабочей области. На основе аналитического решения 2D уравнения Пуассона разработана аналитическая модель для анализа чувствительности распределения потенциала кремниевых полевых GAA нанотранзисторов к аномальному поведению зернистости металлического затвора. Количественно проанализированы вариации распределения потенциала в транзисторах с короткой и тонкой рабочей областью с длиной от 25 до 11 нм. Показана зависимость возмущения потенциала от расположения аномальной зернистости на затворе. Установлена линейная зависимость амплитуды возмущения от величины скачка работы выхода. Разработана математическая модель флуктуации распределения потенциала, включающая вариации неравномерности границ аномальной области зернистости. Неравномерность границ аномальной области вносит дополнительный вклад в трансформацию потенциала. При примерно одинаковых деформациях границ вклад данного механизма не существенен. При значительной асимметрии границ вклад может превышать 10% от возмущения, сгенерированного идеальным кольцом.</p></abstract><trans-abstract xml:lang="en"><p>The influence of the anomalous grain size of the metal gate of a silicon field-effect GAA nanotransistor with cylindrical geometry on the potential distribution in its working area is discussed. Based on the analytical solution of the 2D Poisson equation, an analytical model has been developed to analyze the sensitivity of the potential distribution of silicon field GAA nanotransistors to the abnormal behavior of the metal gate grain. The variations of the potential distribution in transistors with short and thin working areas with a length from 25 to 11 nm are quantitatively analyzed. The dependence of the potential perturbation on the location of the abnormal grain on the gate is shown. The linear dependence of the amplitude of the disturbance on the magnitude of the output operation jump is established. A mathematical model of the fluctuation of the potential distribution has been developed, including variations in the unevenness of the boundaries of the anomalous grain area. The nonuniformity of the boundaries of the anomalous region makes an additional contribution to the transformation of the potential. With approximately the same deformations of the boundaries, the contribution of this mechanism is not significant. With a significant asymmetry of the boundaries, the contribution can exceed 10% of the perturbation generated by the ideal ring.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>кремниевый цилиндрический нанотранзистор с полностью охватывающим затвором</kwd><kwd>аномальная зернистость металлического затвора</kwd><kwd>распределение потенциала</kwd><kwd>уравнение Пуассона</kwd><kwd>моделирование</kwd></kwd-group><kwd-group xml:lang="en"><kwd>silicon cylindrical nanotransistor with a surrounding gate</kwd><kwd>anomalous grain size of a metal gate</kwd><kwd>potential distribution</kwd><kwd>Poisson's equation</kwd><kwd>modeling</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Публикация выполнена в рамках НИР ФГУ ФНЦ НИИСИ РАН по теме № FNEF-2024-0003 "Методы разработки аппаратно-программных платформ на основе защищенных и устойчивых к сбоям систем на кристалле и сопроцессоров искусственного интеллекта и обработки сигналов".</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">International Roadmap for Devices and Systems (IRDS), More Moore. 2017. 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