{"id":3681,"date":"2025-07-25T08:49:00","date_gmt":"2025-07-25T00:49:00","guid":{"rendered":"https:\/\/www.topfastpcb.com\/?p=3681"},"modified":"2025-07-24T11:37:10","modified_gmt":"2025-07-24T03:37:10","slug":"common-issues-in-improving-pcb-reliability","status":"publish","type":"post","link":"https:\/\/www.topfastpcb.com\/tr\/blog\/common-issues-in-improving-pcb-reliability\/","title":{"rendered":"PCB G\u00fcvenilirli\u011fini Geli\u015ftirmede S\u0131k Kar\u015f\u0131la\u015f\u0131lan Sorunlar"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_74 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u0130\u00e7indekiler<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.topfastpcb.com\/tr\/blog\/common-issues-in-improving-pcb-reliability\/#How_to_Calculate_PCB_Impedance\" >PCB Empedans\u0131 Nas\u0131l Hesaplan\u0131r?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.topfastpcb.com\/tr\/blog\/common-issues-in-improving-pcb-reliability\/#1_Determine_PCB_Stackup_Geometry\" >1. PCB Y\u0131\u011f\u0131n\u0131n\u0131 ve Geometrisini Belirleyin<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.topfastpcb.com\/tr\/blog\/common-issues-in-improving-pcb-reliability\/#2_Identify_Dielectric_Constant_Dk_or_%CE%B5%E1%B5%A3\" >2. Dielektrik Sabitini (Dk ya da \u03b5kat\u0131) tan\u0131mlay\u0131n<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.topfastpcb.com\/tr\/blog\/common-issues-in-improving-pcb-reliability\/#3_Choose_Impedance_Calculation_Method\" >3. Empedans Hesaplama Y\u00f6ntemini Se\u00e7in<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.topfastpcb.com\/tr\/blog\/common-issues-in-improving-pcb-reliability\/#4_Use_Impedance_Calculators_or_Tools\" >4. Empedans Hesaplay\u0131c\u0131lar\u0131 veya Ara\u00e7lar\u0131 Kullan\u0131n<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.topfastpcb.com\/tr\/blog\/common-issues-in-improving-pcb-reliability\/#5_Optimize_Design_Based_on_Results\" >5. Sonu\u00e7lara G\u00f6re Tasar\u0131m\u0131 Optimize Edin<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.topfastpcb.com\/tr\/blog\/common-issues-in-improving-pcb-reliability\/#How_to_consider_signal_integrity_in_PCB_design\" >PCB tasar\u0131m\u0131nda sinyal b\u00fct\u00fcnl\u00fc\u011f\u00fc nas\u0131l dikkate al\u0131n\u0131r?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.topfastpcb.com\/tr\/blog\/common-issues-in-improving-pcb-reliability\/#1_Layout_Design\" >1. Yerle\u015fim Tasar\u0131m\u0131<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.topfastpcb.com\/tr\/blog\/common-issues-in-improving-pcb-reliability\/#2_Impedance_Matching\" >2. Empedans E\u015fle\u015ftirme<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.topfastpcb.com\/tr\/blog\/common-issues-in-improving-pcb-reliability\/#3_Signal_Line_Routing\" >3. Sinyal Hatt\u0131 Y\u00f6nlendirme<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.topfastpcb.com\/tr\/blog\/common-issues-in-improving-pcb-reliability\/#4_Power_and_Grounding\" >4. G\u00fc\u00e7 ve Topraklama<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.topfastpcb.com\/tr\/blog\/common-issues-in-improving-pcb-reliability\/#5_Simulation_Verification\" >5. Sim\u00fclasyon Do\u011frulamas\u0131<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.topfastpcb.com\/tr\/blog\/common-issues-in-improving-pcb-reliability\/#How_to_Consider_Electromagnetic_Compatibility_EMC_in_PCB_Design\" >PCB Tasar\u0131m\u0131nda Elektromanyetik Uyumluluk (EMC) Nas\u0131l Dikkate Al\u0131n\u0131r?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.topfastpcb.com\/tr\/blog\/common-issues-in-improving-pcb-reliability\/#1_PCB_Layout_for_EMC\" >1. EMC i\u00e7in PCB D\u00fczeni<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.topfastpcb.com\/tr\/blog\/common-issues-in-improving-pcb-reliability\/#2_Grounding_Techniques\" >2. Topraklama Teknikleri<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.topfastpcb.com\/tr\/blog\/common-issues-in-improving-pcb-reliability\/#3_Filtering_Suppression\" >3. Filtreleme ve Bast\u0131rma<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.topfastpcb.com\/tr\/blog\/common-issues-in-improving-pcb-reliability\/#4_Shielding_Interface_Design\" >4. Ekranlama ve Aray\u00fcz Tasar\u0131m\u0131<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.topfastpcb.com\/tr\/blog\/common-issues-in-improving-pcb-reliability\/#5_Simulation_Testing\" >5. Sim\u00fclasyon ve Test<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/www.topfastpcb.com\/tr\/blog\/common-issues-in-improving-pcb-reliability\/#How_to_Consider_Power_Integrity_PI_in_PCB_Design\" >PCB Tasar\u0131m\u0131nda G\u00fc\u00e7 B\u00fct\u00fcnl\u00fc\u011f\u00fc (PI) Nas\u0131l Dikkate Al\u0131n\u0131r?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/www.topfastpcb.com\/tr\/blog\/common-issues-in-improving-pcb-reliability\/#1_Power_Trace_Layout\" >1. G\u00fc\u00e7 \u0130zi D\u00fczeni<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/www.topfastpcb.com\/tr\/blog\/common-issues-in-improving-pcb-reliability\/#2_Power_Filtering\" >2. G\u00fc\u00e7 Filtreleme<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/www.topfastpcb.com\/tr\/blog\/common-issues-in-improving-pcb-reliability\/#3_Power_and_Grounding\" >3. G\u00fc\u00e7 ve Topraklama<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/www.topfastpcb.com\/tr\/blog\/common-issues-in-improving-pcb-reliability\/#4_Simulation_and_Validation\" >4. Sim\u00fclasyon ve Do\u011frulama<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/www.topfastpcb.com\/tr\/blog\/common-issues-in-improving-pcb-reliability\/#How_to_Incorporate_Design_for_Testability_DFT_in_PCB_Design\" >Test Edilebilirlik i\u00e7in Tasar\u0131m (DFT) PCB Tasar\u0131m\u0131na Nas\u0131l Dahil Edilir?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/www.topfastpcb.com\/tr\/blog\/common-issues-in-improving-pcb-reliability\/#1_Test_Points_and_Interfaces\" >1. Test Noktalar\u0131 ve Aray\u00fczler<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/www.topfastpcb.com\/tr\/blog\/common-issues-in-improving-pcb-reliability\/#2_Board_Labeling_Silkscreen\" >2. Pano Etiketleme (Serigrafi)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/www.topfastpcb.com\/tr\/blog\/common-issues-in-improving-pcb-reliability\/#3_Programmable_Test_Techniques\" >3. Programlanabilir Test Teknikleri<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-28\" href=\"https:\/\/www.topfastpcb.com\/tr\/blog\/common-issues-in-improving-pcb-reliability\/#4_Simulation_and_Validation-2\" >4. Sim\u00fclasyon ve Do\u011frulama<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-29\" href=\"https:\/\/www.topfastpcb.com\/tr\/blog\/common-issues-in-improving-pcb-reliability\/#Key_Design_Principles_Comparison\" >Temel Tasar\u0131m \u0130lkeleri Kar\u015f\u0131la\u015ft\u0131rmas\u0131<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_to_Calculate_PCB_Impedance\"><\/span>PCB Empedans\u0131 Nas\u0131l Hesaplan\u0131r?<span class=\"ez-toc-section-end\"><\/span><\/h2><p>PCB empedans\u0131n\u0131n hesaplanmas\u0131, \u00f6zellikle y\u00fcksek h\u0131zl\u0131 ve RF devreleri i\u00e7in sinyal b\u00fct\u00fcnl\u00fc\u011f\u00fcn\u00fc sa\u011flar.<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Determine_PCB_Stackup_Geometry\"><\/span>1. PCB Y\u0131\u011f\u0131n\u0131n\u0131 ve Geometrisini Belirleyin<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li><strong>Katman say\u0131s\u0131<\/strong>: Tek, \u00e7ift veya \u00e7ok katmanl\u0131.<\/li>\n\n<li><strong>\u0130z geni\u015fli\u011fi (W)<\/strong> ve <strong>kal\u0131nl\u0131k (T)<\/strong>: Empedans kontrol\u00fc i\u00e7in kritiktir.<\/li>\n\n<li><strong>Dielektrik kal\u0131nl\u0131\u011f\u0131 (H)<\/strong>: Sinyal katman\u0131 ile referans d\u00fczlemi (\u00f6rn. toprak) aras\u0131ndaki mesafe.<\/li>\n\n<li><strong>Bak\u0131r a\u011f\u0131rl\u0131\u011f\u0131<\/strong>: Tipik olarak 0,5 oz (17,5 \u00b5m) ila 2 oz (70 \u00b5m).<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Identify_Dielectric_Constant_Dk_or_%CE%B5%E1%B5%A3\"><\/span>2. Dielektrik Sabitini (Dk ya da \u03b5kat\u0131) tan\u0131mlay\u0131n<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li><strong>FR-4<\/strong>: ~4.3-4.8 (frekansa g\u00f6re de\u011fi\u015fir).<\/li>\n\n<li><strong>Rogers RO4003C<\/strong>: ~3,38 (RF i\u00e7in d\u00fc\u015f\u00fck kay\u0131pl\u0131).<\/li>\n\n<li><strong>Poliimid<\/strong>: ~3.5 (esnek PCB'ler).<\/li>\n\n<li><em>Not<\/em>: Dk daha y\u00fcksek frekanslarda hafif\u00e7e azal\u0131r.<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Choose_Impedance_Calculation_Method\"><\/span>3. Empedans Hesaplama Y\u00f6ntemini Se\u00e7in<span class=\"ez-toc-section-end\"><\/span><\/h3><p><strong>Mikro\u015ferit<\/strong> (toprak d\u00fczlemi \u00fczerinde d\u0131\u015f katman izi):<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"526\" height=\"74\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/image.png\" alt=\"\" class=\"wp-image-3682\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/image.png 526w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/image-300x42.png 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/image-18x3.png 18w\" sizes=\"auto, (max-width: 526px) 100vw, 526px\" \/><\/figure><\/div><p><strong>Stripline<\/strong> (iki toprak d\u00fczlemi aras\u0131ndaki i\u00e7 katman):<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"319\" height=\"63\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/image-1.png\" alt=\"\" class=\"wp-image-3683\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/image-1.png 319w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/image-1-300x59.png 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/image-1-18x4.png 18w\" sizes=\"auto, (max-width: 319px) 100vw, 319px\" \/><\/figure><\/div><p><strong>Diferansiyel \u00c7ift<\/strong>: \u0130zler aras\u0131nda bo\u015fluk (S) gerektirir.<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"304\" height=\"49\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/image-3.png\" alt=\"\" class=\"wp-image-3685\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/image-3.png 304w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/image-3-300x49.png 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/image-3-18x3.png 18w\" sizes=\"auto, (max-width: 304px) 100vw, 304px\" \/><\/figure><\/div><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Use_Impedance_Calculators_or_Tools\"><\/span>4. Empedans Hesaplay\u0131c\u0131lar\u0131 veya Ara\u00e7lar\u0131 Kullan\u0131n<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li><strong>\u00c7evrimi\u00e7i Ara\u00e7lar<\/strong>: Saturn PCB Toolkit, EEWeb Hesaplay\u0131c\u0131.<\/li>\n\n<li><strong>PCB Yaz\u0131l\u0131m\u0131<\/strong>: Altium Designer, KiCad veya Cadence yerle\u015fik empedans hesaplay\u0131c\u0131lar\u0131 i\u00e7erir.<\/li>\n\n<li><strong>EM Sim\u00fclat\u00f6rleri<\/strong>: Ansys HFSS, CST (geli\u015fmi\u015f tasar\u0131mlar i\u00e7in).<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_Optimize_Design_Based_on_Results\"><\/span>5. Sonu\u00e7lara G\u00f6re Tasar\u0131m\u0131 Optimize Edin<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li>Ayarla <strong>iz geni\u015fli\u011fi<\/strong> (\u2191 geni\u015flik \u2192 \u2193 empedans).<\/li>\n\n<li>De\u011fi\u015ftirmek <strong>dielektrik kal\u0131nl\u0131\u011f\u0131<\/strong> (\u2191 H \u2192 \u2191 empedans).<\/li>\n\n<li>Tweak <strong>iz aral\u0131\u011f\u0131<\/strong> diferansiyel \u00e7iftler i\u00e7in.<\/li>\n\n<li>Se\u00e7iniz <strong>malzemeler<\/strong> uygun Dk ile (\u00f6rne\u011fin, RF i\u00e7in Rogers).<\/li><\/ul><p><strong>\u00d6rnek Hesaplama (FR-4 Mikro\u015ferit)<\/strong><br>Verildi:<\/p><ul class=\"wp-block-list\"><li>\u0130z geni\u015fli\u011fi (W) = 0,2 mm<\/li>\n\n<li>Dielektrik kal\u0131nl\u0131\u011f\u0131 (H) = 0,15 mm<\/li>\n\n<li>Bak\u0131r kal\u0131nl\u0131\u011f\u0131 (T) = 0,035 mm<\/li>\n\n<li>\u03b5kat\u0131 = 4,5<\/li><\/ul><p>Mikro\u015ferit form\u00fcl\u00fcn\u00fc kullanarak:<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"491\" height=\"75\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/image-4.png\" alt=\"\" class=\"wp-image-3686\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/image-4.png 491w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/image-4-300x46.png 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/image-4-18x3.png 18w\" sizes=\"auto, (max-width: 491px) 100vw, 491px\" \/><\/figure><\/div><p>RF sinyalleri i\u00e7in standart 50\u03a9 empedansla e\u015fle\u015fir.<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"402\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/06\/PCB-electroplating-1.jpg\" alt=\"PCB g\u00fcvenilirli\u011fi\" class=\"wp-image-3454\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/06\/PCB-electroplating-1.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/06\/PCB-electroplating-1-300x201.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/06\/PCB-electroplating-1-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_to_consider_signal_integrity_in_PCB_design\"><\/span>Sinyal b\u00fct\u00fcnl\u00fc\u011f\u00fc nas\u0131l dikkate al\u0131n\u0131r? <a href=\"https:\/\/www.topfastpcb.com\/tr\/blog\/what-is-a-pcb-design\/\">PCB tasar\u0131m\u0131<\/a>?<span class=\"ez-toc-section-end\"><\/span><\/h2><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Layout_Design\"><\/span>1. Yerle\u015fim Tasar\u0131m\u0131<span class=\"ez-toc-section-end\"><\/span><\/h3><p>PCB yerle\u015fim tasar\u0131m\u0131nda, sinyal hatlar\u0131n\u0131n, g\u00fc\u00e7 hatlar\u0131n\u0131n ve toprak hatlar\u0131n\u0131n yerle\u015fiminin dikkate al\u0131nmas\u0131 ve sinyal hatlar\u0131n\u0131n, g\u00fc\u00e7 hatlar\u0131n\u0131n ve toprak hatlar\u0131n\u0131n kesi\u015fmesinden kaynaklanan parazitlerin \u00f6nlenmesi \u00f6nemlidir. Ek olarak, kar\u0131\u015fma ve gecikmeyi azaltmak i\u00e7in sinyal hatlar\u0131n\u0131n uzunlu\u011funu en aza indirmek esast\u0131r.<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Impedance_Matching\"><\/span>2. Empedans E\u015fle\u015ftirme<span class=\"ez-toc-section-end\"><\/span><\/h3><p>Y\u00fcksek h\u0131zl\u0131 sinyal hatlar\u0131 tasarlan\u0131rken, sinyal hatlar\u0131n\u0131n empedans\u0131n\u0131n sinyal kayna\u011f\u0131 ve y\u00fck\u00fcn empedans\u0131yla e\u015fle\u015fmesini sa\u011flamak ve b\u00f6ylece sinyal yans\u0131mas\u0131 ve kar\u0131\u015fma olmas\u0131n\u0131 \u00f6nlemek i\u00e7in empedans e\u015fle\u015ftirmesi yap\u0131lmal\u0131d\u0131r.<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Signal_Line_Routing\"><\/span>3. Sinyal Hatt\u0131 Y\u00f6nlendirme<span class=\"ez-toc-section-end\"><\/span><\/h3><p>PCB tasar\u0131m\u0131nda, sinyal hatlar\u0131n\u0131n y\u00f6nlendirilmesi de sinyal b\u00fct\u00fcnl\u00fc\u011f\u00fcn\u00fc etkiler ve belirli kurallara uymal\u0131d\u0131r. \u00d6rne\u011fin, diferansiyel sinyal hatlar\u0131 belirli bir aral\u0131\u011f\u0131 korumal\u0131 ve paralel olarak y\u00f6nlendirilmeli, tek u\u00e7lu sinyal hatlar\u0131 toprak hatlar\u0131na paralel olarak y\u00f6nlendirilmeli ve sinyal hatt\u0131 b\u00fck\u00fclmeleri en aza indirilmelidir.<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Power_and_Grounding\"><\/span>4. G\u00fc\u00e7 ve Topraklama<span class=\"ez-toc-section-end\"><\/span><\/h3><p>PCB tasar\u0131m\u0131nda, g\u00fc\u00e7 ve topraklama tasar\u0131m\u0131 da sinyal b\u00fct\u00fcnl\u00fc\u011f\u00fcn\u00fc etkiler. Kararl\u0131 g\u00fc\u00e7 ve topraklama kullan\u0131lmal\u0131 ve g\u00fc\u00e7 ve topraklaman\u0131n direnci ve end\u00fcktans\u0131 m\u00fcmk\u00fcn oldu\u011funca en aza indirilmelidir.<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_Simulation_Verification\"><\/span>5. Sim\u00fclasyon Do\u011frulamas\u0131<span class=\"ez-toc-section-end\"><\/span><\/h3><p>PCB tasar\u0131m\u0131 tamamland\u0131ktan sonra, sinyal b\u00fct\u00fcnl\u00fc\u011f\u00fcn\u00fcn gereksinimleri kar\u015f\u0131lad\u0131\u011f\u0131ndan emin olmak i\u00e7in sim\u00fclasyon do\u011frulamas\u0131 gereklidir. Sim\u00fclasyon sayesinde sinyal gecikmesi, yans\u0131ma ve kar\u0131\u015fma gibi sorunlar tespit edilebilir ve PCB tasar\u0131m\u0131 optimize edilebilir.<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"402\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/PCB-soldering-2.jpg\" alt=\"PCB g\u00fcvenilirli\u011fi\" class=\"wp-image-3528\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/PCB-soldering-2.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/PCB-soldering-2-300x201.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/PCB-soldering-2-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_to_Consider_Electromagnetic_Compatibility_EMC_in_PCB_Design\"><\/span>PCB Tasar\u0131m\u0131nda Elektromanyetik Uyumluluk (EMC) Nas\u0131l Dikkate Al\u0131n\u0131r?<span class=\"ez-toc-section-end\"><\/span><\/h2><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_PCB_Layout_for_EMC\"><\/span>1. EMC i\u00e7in PCB D\u00fczeni<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li><strong>Paralel Y\u00f6nlendirmeyi En Aza \u0130ndirin<\/strong>: Kar\u0131\u015fma ve elektromanyetik kuplaj\u0131 azaltmak i\u00e7in sinyal ve g\u00fc\u00e7\/toprak hatlar\u0131 aras\u0131nda uzun paralel \u00e7al\u0131\u015fmalardan ka\u00e7\u0131n\u0131n.<\/li>\n\n<li><strong>Kritik Sinyal \u0130zolasyonu<\/strong>: Y\u00fcksek h\u0131zl\u0131 (\u00f6rn. saatler, RF) ve hassas analog sinyalleri g\u00fcr\u00fclt\u00fcl\u00fc devrelerden (\u00f6rn. anahtarlamal\u0131 g\u00fc\u00e7 kaynaklar\u0131) ay\u0131r\u0131n.<\/li>\n\n<li><strong>Katman Y\u0131\u011fma Stratejisi<\/strong>:<\/li>\n\n<li>Ekranlama sa\u011flamak i\u00e7in sinyal katmanlar\u0131na biti\u015fik sa\u011flam toprak d\u00fczlemleri kullan\u0131n.<\/li>\n\n<li>Y\u00fcksek h\u0131zl\u0131 sinyalleri, muhafaza i\u00e7in toprak d\u00fczlemleri aras\u0131ndaki i\u00e7 katmanlara y\u00f6nlendirin.<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Grounding_Techniques\"><\/span>2. Topraklama Teknikleri<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li><strong>D\u00fc\u015f\u00fck Empedansl\u0131 Zemin D\u00fczlemleri<\/strong>: Toprak d\u00f6ng\u00fclerini en aza indirmek ve yay\u0131lan emisyonlar\u0131 azaltmak i\u00e7in kesintisiz toprak d\u00fczlemleri kullan\u0131n.<\/li>\n\n<li><strong>Zeminleri Dikkatlice B\u00f6l\u00fcn<\/strong>: Analog\/dijital topraklamalar\u0131 yaln\u0131zca gerekti\u011finde tek bir ba\u011flant\u0131 noktas\u0131yla (\u00f6rn. ferrit boncuk veya 0\u03a9 diren\u00e7) ay\u0131r\u0131n.<\/li>\n\n<li><strong>Stitching arac\u0131l\u0131\u011f\u0131yla<\/strong>: Bo\u015fluk rezonanslar\u0131n\u0131 bast\u0131rmak i\u00e7in y\u00fcksek frekansl\u0131 izlerin veya kart kenarlar\u0131n\u0131n etraf\u0131na birden fazla topraklama yolu yerle\u015ftirin.<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Filtering_Suppression\"><\/span>3. Filtreleme ve Bast\u0131rma<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li><strong>Ferrit Boncuklar<\/strong>: Y\u00fcksek frekansl\u0131 g\u00fcr\u00fclt\u00fcy\u00fc engellemek i\u00e7in g\u00fc\u00e7\/IO hatlar\u0131na ekleyin.<\/li>\n\n<li><strong>Dekuplaj Kondansat\u00f6rleri<\/strong>: Y\u00fcksek ve orta frekansl\u0131 g\u00fcr\u00fclt\u00fcy\u00fc filtrelemek i\u00e7in IC g\u00fc\u00e7 pinlerinin yak\u0131n\u0131na yerle\u015ftirin (\u00f6rne\u011fin, 0.1\u03bcF + 1\u03bcF).<\/li>\n\n<li><strong>Ortak Mod \u015eoklar\u0131<\/strong>: Ortak mod radyasyonunu bast\u0131rmak i\u00e7in diferansiyel \u00e7iftlerde (\u00f6rn. USB, Ethernet) kullan\u0131n.<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Shielding_Interface_Design\"><\/span>4. Ekranlama ve Aray\u00fcz Tasar\u0131m\u0131<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li><strong>Kablo Ekranlama<\/strong>: \u015easiye 360\u00b0 topraklamal\u0131 blendajl\u0131 konekt\u00f6rler (\u00f6rn. USB, HDMI) kullan\u0131n.<\/li>\n\n<li><strong>Pano Seviyesi Ekranlama<\/strong>: Hassas RF devrelerinin \u00fczerine metal kutular veya iletken kaplamalar ekleyin.<\/li>\n\n<li><strong>Kenar Koruma<\/strong>: Hassas izleri kart kenarlar\u0131ndan uza\u011fa y\u00f6nlendirin; koruma izleri kullan\u0131n veya etraflar\u0131na topraklanm\u0131\u015f bak\u0131r d\u00f6k\u00fcn.<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_Simulation_Testing\"><\/span>5. Sim\u00fclasyon ve Test<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li><strong>Layout \u00d6ncesi Analiz<\/strong>: Radyasyon s\u0131cak noktalar\u0131n\u0131 modellemek i\u00e7in ANSYS HFSS veya CST gibi ara\u00e7lar\u0131 kullan\u0131n.<\/li>\n\n<li><strong>Post-Layout Do\u011frulama<\/strong>:<\/li>\n\n<li>Emisyon kaynaklar\u0131n\u0131 belirlemek i\u00e7in yak\u0131n alan taramalar\u0131 ger\u00e7ekle\u015ftirin.<\/li>\n\n<li>Yay\u0131lan\/iletilen emisyonlar i\u00e7in uyumluluk testi (\u00f6rn. FCC, CE) ger\u00e7ekle\u015ftirin.<\/li>\n\n<li><strong>Tasar\u0131m Yinelemesi<\/strong>: Test sonu\u00e7lar\u0131na g\u00f6re optimize edin (\u00f6rne\u011fin, sonland\u0131rma diren\u00e7leri ekleyerek veya iz aral\u0131\u011f\u0131n\u0131 ayarlayarak).<\/li><\/ul><p><strong>\u00d6rnek D\u00fczeltmeler<\/strong>:<\/p><ul class=\"wp-block-list\"><li>100MHz'lik bir saat a\u015f\u0131r\u0131 derecede yay\u0131l\u0131yor: Seri sonland\u0131rma diren\u00e7leri ekleyin veya toprak d\u00fczlemleri aras\u0131nda y\u00f6nlendirin.<\/li>\n\n<li>Anahtarlama g\u00fc\u00e7 kayna\u011f\u0131 g\u00fcr\u00fclt\u00fcs\u00fc: Giri\u015f\/\u00e7\u0131k\u0131\u015fta \u03c0-filtreleri (LC) uygulay\u0131n.<\/li><\/ul><p>Bu uygulamalar\u0131 entegre ederek, PCB'ler EMC standartlar\u0131n\u0131 (\u00f6rn. IEC 61000) kar\u015f\u0131layabilir ve maliyetli yeniden tasar\u0131mlar\u0131 en aza indirebilir. Her zaman erken prototipleyin ve test edin!<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"402\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/06\/pcba-2.jpg\" alt=\"PCB g\u00fcvenilirli\u011fi\" class=\"wp-image-3233\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/06\/pcba-2.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/06\/pcba-2-300x201.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/06\/pcba-2-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_to_Consider_Power_Integrity_PI_in_PCB_Design\"><\/span>PCB Tasar\u0131m\u0131nda G\u00fc\u00e7 B\u00fct\u00fcnl\u00fc\u011f\u00fc (PI) Nas\u0131l Dikkate Al\u0131n\u0131r?<span class=\"ez-toc-section-end\"><\/span><\/h2><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Power_Trace_Layout\"><\/span>1. G\u00fc\u00e7 \u0130zi D\u00fczeni<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li><strong>K\u0131sa ve Geni\u015f \u0130zler<\/strong>: Gerilim d\u00fc\u015f\u00fc\u015f\u00fcn\u00fc ve g\u00fcr\u00fclt\u00fcy\u00fc azaltmak i\u00e7in direnci (R) ve parazitik end\u00fcktans\u0131 (L) en aza indirin.<\/li>\n\n<li><strong>Sinyal \u0130zleri ile Paralel Y\u00f6nlendirmeden Ka\u00e7\u0131n\u0131n<\/strong>: G\u00fc\u00e7 g\u00fcr\u00fclt\u00fcs\u00fcn\u00fcn hassas sinyallere (\u00f6rn. saatler, analog devreler) ba\u011flanmas\u0131n\u0131 \u00f6nleyin.<\/li>\n\n<li><strong>Katman Stratejisi<\/strong>:<\/li>\n\n<li>\u00c7ok katmanl\u0131 panolarda, t\u00fcm katmanlar\u0131 g\u00fc\u00e7 ve toprak d\u00fczlemlerine ay\u0131r\u0131n.<\/li>\n\n<li>Kritik g\u00fc\u00e7 raylar\u0131 (\u00f6rne\u011fin, CPU \u00e7ekirdek voltaj\u0131) \u00f6zel g\u00fc\u00e7 d\u00fczlemlerine sahip olmal\u0131d\u0131r.<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Power_Filtering\"><\/span>2. G\u00fc\u00e7 Filtreleme<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li><strong>Dekuplaj Kondansat\u00f6rleri<\/strong>:<\/li>\n\n<li>Voltaj\u0131 stabilize etmek i\u00e7in g\u00fc\u00e7 giri\u015flerinde y\u0131\u011f\u0131n elektrolitik kapasit\u00f6rler (10-100\u03bcF).<\/li>\n\n<li>Y\u00fcksek frekansl\u0131 g\u00fcr\u00fclt\u00fcy\u00fc filtrelemek i\u00e7in IC pinlerinin yak\u0131n\u0131nda k\u00fc\u00e7\u00fck seramik kapasit\u00f6rler (0.1\u03bcF).<\/li>\n\n<li><strong>LC Filtreler<\/strong>:<\/li>\n\n<li>G\u00fcr\u00fclt\u00fcye duyarl\u0131 mod\u00fcller (\u00f6rn. PLL'ler) i\u00e7in \u03c0 filtreleri (kapasit\u00f6r + ind\u00fckt\u00f6r) ekleyin.<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Power_and_Grounding\"><\/span>3. G\u00fc\u00e7 ve Topraklama<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li><strong>D\u00fc\u015f\u00fck Empedansl\u0131 D\u00f6n\u00fc\u015f Yollar\u0131<\/strong>:<\/li>\n\n<li>Sa\u011flam toprak d\u00fczlemleri kullan\u0131n; empedans s\u00fcreksizliklerine neden olan b\u00f6l\u00fcnmelerden ka\u00e7\u0131n\u0131n.<\/li>\n\n<li>G\u00fc\u00e7\/toprak d\u00fczlemlerini ba\u011flamak i\u00e7in \u00e7oklu vialar (via end\u00fcktans\u0131n\u0131 azalt\u0131r).<\/li>\n\n<li><strong>Y\u0131ld\u0131z Topraklama<\/strong>:<\/li>\n\n<li>Tek noktadan topraklama ile y\u00fcksek g\u00fc\u00e7l\u00fc ve hassas devreleri ay\u0131r\u0131n.<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Simulation_and_Validation\"><\/span>4. Sim\u00fclasyon ve Do\u011frulama<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li><strong>PDN (G\u00fc\u00e7 Da\u011f\u0131t\u0131m A\u011f\u0131) Analizi<\/strong>:<\/li>\n\n<li>Hedef empedans: ( Z_{\\text{target}} = \\frac{\\Delta V}{\\Delta I} ).<\/li>\n\n<li>Ara\u00e7lar: ANSYS SIwave, Cadence Sigrity.<\/li>\n\n<li><strong>Dalgalanma ve G\u00fcr\u00fclt\u00fc Testi<\/strong>:<\/li>\n\n<li>Osiloskoplar veya sim\u00fclasyonlarla g\u00fc\u00e7 g\u00fcr\u00fclt\u00fcs\u00fc seviyelerini do\u011frulay\u0131n.<\/li><\/ul><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_to_Incorporate_Design_for_Testability_DFT_in_PCB_Design\"><\/span>Test Edilebilirlik i\u00e7in Tasar\u0131m (DFT) PCB Tasar\u0131m\u0131na Nas\u0131l Dahil Edilir?<span class=\"ez-toc-section-end\"><\/span><\/h2><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Test_Points_and_Interfaces\"><\/span>1. Test Noktalar\u0131 ve Aray\u00fczler<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li><strong>Kritik Sinyal Test Noktalar\u0131<\/strong>:<\/li>\n\n<li>Prob eri\u015fimi i\u00e7in vialar veya pedler (\u00e7ap \u22651mm, aral\u0131k \u22652,54mm) sa\u011flay\u0131n.<\/li>\n\n<li>Test noktalar\u0131n\u0131 etiketleyin (\u00f6rn. TP1, TP2).<\/li>\n\n<li><strong>Standart Aray\u00fczler<\/strong>:<\/li>\n\n<li>JTAG, UART veya SWD aray\u00fczlerini kart kenarlar\u0131na yak\u0131n yerle\u015ftirin.<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Board_Labeling_Silkscreen\"><\/span>2. Pano Etiketleme (Serigrafi)<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li><strong>Bile\u015fen \u0130\u015faretleri<\/strong>:<\/li>\n\n<li>Referans belirleyicileri (\u00f6rn. R1, C2), polariteyi (+\/-) ve Pin 1'i etiketleyin.<\/li>\n\n<li>Y\u00fcksek kontrastl\u0131 serigrafi (beyaz\/siyah) kullan\u0131n.<\/li>\n\n<li><strong>Fonksiyonel B\u00f6lgeler<\/strong>:<\/li>\n\n<li>Kolay tan\u0131mlama i\u00e7in alanlar\u0131 (\u00f6rne\u011fin, \"G\u00fc\u00e7 B\u00f6l\u00fcm\u00fc\") ana hatlar\u0131yla belirtin.<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Programmable_Test_Techniques\"><\/span>3. Programlanabilir Test Teknikleri<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li><strong>S\u0131n\u0131r Taramas\u0131 (JTAG)<\/strong>:<\/li>\n\n<li>IEEE 1149.1 uyumlu IC'ler (\u00f6rn. FPGA'lar, MCU'lar) ara ba\u011flant\u0131 testine olanak sa\u011flar.<\/li>\n\n<li><strong>Otomatik Test Ekipman\u0131 (ATE)<\/strong>:<\/li>\n\n<li>Yedek test fikst\u00fcr\u00fc aray\u00fczleri (\u00f6rne\u011fin, pogo pin pedleri).<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Simulation_and_Validation-2\"><\/span>4. Sim\u00fclasyon ve Do\u011frulama<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li><strong>DFT Kural Kontrolleri<\/strong>:<\/li>\n\n<li>Test noktas\u0131 kapsam\u0131n\u0131 sa\u011flay\u0131n (\u00f6rne\u011fin, eri\u015filebilir a\u011flar\u0131n &gt;90%'si).<\/li>\n\n<li><strong>Hata Modu Analizi<\/strong>:<\/li>\n\n<li>SPICE sim\u00fclasyonlar\u0131 arac\u0131l\u0131\u011f\u0131yla test devrelerini do\u011frulay\u0131n.<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Key_Design_Principles_Comparison\"><\/span>Temel Tasar\u0131m \u0130lkeleri Kar\u015f\u0131la\u015ft\u0131rmas\u0131<span class=\"ez-toc-section-end\"><\/span><\/h3><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th><strong>G\u00fc\u00e7 B\u00fct\u00fcnl\u00fc\u011f\u00fc (PI)<\/strong><\/th><th><strong>Test Edilebilirlik i\u00e7in Tasar\u0131m (DFT)<\/strong><\/th><\/tr><\/thead><tbody><tr><td>D\u00fc\u015f\u00fck empedansl\u0131 g\u00fc\u00e7 da\u011f\u0131t\u0131m\u0131<\/td><td>Fiziksel test noktas\u0131 eri\u015filebilirli\u011fi<\/td><\/tr><tr><td>Dekuplaj kondansat\u00f6r\u00fc optimizasyonu<\/td><td>JTAG\/boundary tarama deste\u011fi<\/td><\/tr><tr><td>G\u00fc\u00e7-sinyal kuplaj\u0131n\u0131 en aza indirin<\/td><td>A\u00e7\u0131k bile\u015fen\/aray\u00fcz etiketlemesi<\/td><\/tr><tr><td>PDN sim\u00fclasyonu ve dalgalanma analizi<\/td><td>ATE uyumlu tasar\u0131m<\/td><\/tr><\/tbody><\/table><\/figure><p><strong>\u00d6rnekler<\/strong>:<\/p><ul class=\"wp-block-list\"><li><strong>PI Optimizasyonu<\/strong>: \u00c7oklu 0805 0.1\u03bcF kapakl\u0131 DDR4 bellek g\u00fc\u00e7 d\u00fczlemleri (hedef empedans \u22640.1\u03a9).<\/li>\n\n<li><strong>DFT Uygulamas\u0131<\/strong>: Otomatik u\u00e7an prob testi i\u00e7in 20 test noktas\u0131na sahip end\u00fcstriyel kontrol panosu.<\/li><\/ul><p>Tasar\u0131mc\u0131lar PI ve DFT'yi sistematik olarak ele alarak g\u00fc\u00e7 performans\u0131n\u0131, test verimlili\u011fini ve \u00fcretim g\u00fcvenilirli\u011fini art\u0131rabilir.<\/p><p><\/p>","protected":false},"excerpt":{"rendered":"<p>PCB Empedans\u0131 Nas\u0131l Hesaplan\u0131r? PCB empedans\u0131n\u0131n hesaplanmas\u0131, \u00f6zellikle y\u00fcksek h\u0131zl\u0131 ve RF devreleri i\u00e7in sinyal b\u00fct\u00fcnl\u00fc\u011f\u00fcn\u00fc sa\u011flar. 1. PCB \u0130stifini ve Geometrisini Belirleyin 2. Dielektrik Sabiti (Dk veya \u03b5) belirleyin 3. Empedans Hesaplama Y\u00f6ntemini Se\u00e7in Mikro\u015ferit (toprak d\u00fczlemi \u00fczerinde d\u0131\u015f katman izi): \u015eerit hatt\u0131 (iki toprak d\u00fczlemi aras\u0131ndaki i\u00e7 katman): Diferansiyel \u00c7ift: Aras\u0131nda bo\u015fluk (S) gerektirir [...]<\/p>","protected":false},"author":1,"featured_media":3514,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[112],"tags":[111,330],"class_list":["post-3681","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge","tag-pcb","tag-pcb-reliability"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Common Issues in Improving PCB Reliability - Topfastpcb<\/title>\n<meta name=\"description\" content=\"Learn key strategies to improve PCB reliability, including impedance calculation, signal integrity, EMC, power integrity, and DFT. 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