{"id":62084,"date":"2025-08-15T10:27:34","date_gmt":"2025-08-15T17:27:34","guid":{"rendered":"https:\/\/silvaco.com\/%eb%b6%84%eb%a5%98%eb%90%98%ec%a7%80-%ec%95%8a%ec%9d%8c\/simulation-standard-the-impedance-field-and-small-signal-noise\/"},"modified":"2025-09-21T22:51:08","modified_gmt":"2025-09-22T05:51:08","slug":"simulation-standard-the-impedance-field-and-small-signal-noise","status":"publish","type":"post","link":"https:\/\/silvaco.com\/ko\/simulation-standard\/the-impedance-field-and-small-signal-noise\/","title":{"rendered":"The Impedance Field and Small-Signal Noise"},"content":{"rendered":"<div id='template_overview'  class='avia-section main_color avia-section-small avia-no-border-styling  avia-bg-style-scroll  avia-builder-el-0  avia-builder-el-no-sibling   container_wrap fullsize' style='background-color: #ffffff;  margin-top:0px; margin-bottom:0px; '  ><div class='container' ><main  role=\"main\" itemprop=\"mainContentOfPage\"  class='template-page content  av-content-full alpha units'><div class='post-entry post-entry-type-page post-entry-62084'><div class='entry-content-wrapper clearfix'>\n<div class='flex_column_table av-equal-height-column-flextable -flextable' style='margin-top:20px; margin-bottom:0px; '><div class=\"flex_column av_three_fourth  flex_column_table_cell av-equal-height-column av-align-top first  avia-builder-el-1  el_before_av_one_fourth  avia-builder-el-first  \" style='padding:0px 0px 0px 0px ; border-radius:0px; '><section class=\"av_textblock_section \"  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock  '   itemprop=\"text\" ><h1>The Impedance Field and Small-Signal Noise<\/h1>\n<h3 class=\"p1\"><b>1. Introduction<\/b><\/h3>\n<p class=\"p2\">Small-signal electrical noise is inevitable and caused by random fluctuations in the processes inside the devices, such as microscopic variations in the carrier density caused by thermal fluctuations, and statistical variations in the recombination-generation rate.<span class=\"Apple-converted-space\">\u00a0 <\/span>Such noise can harm the intended behaviour of a circuit so it may be important to model the noise generated by devices.<span class=\"Apple-converted-space\">\u00a0 <\/span>And it may be interesting to know where in a device the noise is being generated so that lower noise devices can be designed.<span class=\"Apple-converted-space\">\u00a0 <\/span>Victory Device uses an impedance field method to calculate the noise.<\/p>\n<\/div><\/section><\/div><div class='av-flex-placeholder'><\/div><div class=\"flex_column av_one_fourth  flex_column_table_cell av-equal-height-column av-align-top av-zero-column-padding   avia-builder-el-3  el_after_av_three_fourth  avia-builder-el-last  \" style='border-radius:0px; ' id=\"whitepaper\" ><p><div  class='avia-builder-widget-area clearfix  avia-builder-el-4  el_before_av_image  avia-builder-el-first '><div id=\"nav_menu-29\" class=\"widget clearfix widget_nav_menu\"><div class=\"menu-simulation-standard-side-menu-korean-container\"><ul id=\"menu-simulation-standard-side-menu-korean\" class=\"menu\"><li id=\"menu-item-25039\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-25039\"><a href=\"https:\/\/silvaco.com\/ko\/technical-library\/simulation-standard\/\">Simulation Standard<\/a><\/li>\n<\/ul><\/div><\/div><\/div><br \/>\n<div  class='avia-image-container  av-styling-    avia-builder-el-5  el_after_av_sidebar  el_before_av_button  avia-align-center '  itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\"  ><div class='avia-image-container-inner'><div class='avia-image-overlay-wrap'><a href=\"\/dynamicweb\/jsp\/downloads\/DownloadDocStepsAction.do?prefixname=&amp;req=silen-download&amp;nm=SS_Q1_MAR2025.pdf\" class='avia_image' target=\"_blank\" rel=\"noopener noreferrer\"><img decoding=\"async\" width=\"234\" height=\"300\" class='wp-image-61967 avia-img-lazy-loading-not-61967 avia_image' src=\"https:\/\/silvaco.com\/wp-content\/uploads\/2025\/08\/Q1_SS_MAR2025_icon-234x300.jpg\" alt='' title='Screenshot'  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/silvaco.com\/wp-content\/uploads\/2025\/08\/Q1_SS_MAR2025_icon-234x300.jpg 234w, https:\/\/silvaco.com\/wp-content\/uploads\/2025\/08\/Q1_SS_MAR2025_icon-29x37.jpg 29w, https:\/\/silvaco.com\/wp-content\/uploads\/2025\/08\/Q1_SS_MAR2025_icon-43x55.jpg 43w, https:\/\/silvaco.com\/wp-content\/uploads\/2025\/08\/Q1_SS_MAR2025_icon-38x48.jpg 38w, https:\/\/silvaco.com\/wp-content\/uploads\/2025\/08\/Q1_SS_MAR2025_icon.jpg 250w\" sizes=\"(max-width: 234px) 100vw, 234px\" \/><\/a><\/div><\/div><\/div><br \/>\n<div  class='avia-button-wrap avia-button-center  avia-builder-el-6  el_after_av_image  avia-builder-el-last ' ><a href='\/dynamicweb\/jsp\/downloads\/DownloadDocStepsAction.do?prefixname=&amp;req=silen-download&amp;nm=SS_Q1_MAR2025.pdf' class='avia-button  avia-color-grey   avia-icon_select-yes-right-icon avia-size-small avia-position-center ' target=\"_blank\" rel=\"noopener noreferrer\"><span class='avia_iconbox_title' >Download Simulation Standard<\/span><span class='avia_button_icon avia_button_icon_right' aria-hidden='true' data-av_icon='\ue875' data-av_iconfont='entypo-fontello'><\/span><\/a><\/div><\/p><\/div><\/div><!--close column table wrapper. Autoclose: 1 -->\n","protected":false},"excerpt":{"rendered":"<p>This is an introduction to the impedance field method and its application to the calculation of the small-signal noise in Victory Device.<\/p>\n","protected":false},"author":8,"featured_media":61967,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7486],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.0 (Yoast SEO v24.0) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>The Impedance Field and Small-Signal Noise<\/title>\n<meta name=\"description\" content=\"Small-signal electrical noise is inevitable and caused by random fluctuations in the processes inside the devices, such as microscopic\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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