{"id":2945,"date":"2025-06-01T08:32:00","date_gmt":"2025-06-01T00:32:00","guid":{"rendered":"https:\/\/www.topfastpcb.com\/?p=2945"},"modified":"2025-05-28T18:34:39","modified_gmt":"2025-05-28T10:34:39","slug":"what-is-pcb-surface-finishes","status":"publish","type":"post","link":"https:\/\/www.topfastpcb.com\/tr\/blog\/what-is-pcb-surface-finishes\/","title":{"rendered":"PCB Y\u00fczey \u0130\u015flemleri Nedir?"},"content":{"rendered":"<p>PCB y\u00fczey i\u015flemi, \"koruyucu bariyer\" ve \"kaynak ortam\u0131n\u0131n\" bak\u0131r y\u00fczeyi olarak bir metal veya ala\u015f\u0131m kaplama tabakas\u0131 ile kaplanm\u0131\u015f bask\u0131l\u0131 devre kart\u0131n\u0131n (pedler, iletken yollar gibi) a\u00e7\u0131kta kalan bak\u0131r folyo alan\u0131n\u0131 ifade eder.<\/p><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\/what-is-pcb-surface-finishes\/#PCB_Surface_Finishing_Core_Functions\" >PCB Y\u00fczey \u0130\u015flemenin Temel \u0130\u015flevleri<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.topfastpcb.com\/tr\/blog\/what-is-pcb-surface-finishes\/#The_importance_of_PCB_surface_treatment\" >PCB y\u00fczey i\u015fleminin \u00f6nemi<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.topfastpcb.com\/tr\/blog\/what-is-pcb-surface-finishes\/#Core_purpose_to_solve_the_%E2%80%9Coxidation_problem%E2%80%9D_of_the_copper_surface\" >Temel ama\u00e7: bak\u0131r y\u00fczeyin \"oksidasyon sorununu\" \u00e7\u00f6zmek<\/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\/what-is-pcb-surface-finishes\/#Industry_Importance_a_critical_process_throughout_the_PCB_life_cycle\" >End\u00fcstrideki \u00d6nemi: PCB ya\u015fam d\u00f6ng\u00fcs\u00fc boyunca kritik bir s\u00fcre\u00e7<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.topfastpcb.com\/tr\/blog\/what-is-pcb-surface-finishes\/#In-Depth_Comparison_of_7_PCB_Surface_Finishes\" >Yedi PCB Y\u00fczey Kaplamas\u0131n\u0131n Derinlemesine Kar\u015f\u0131la\u015ft\u0131r\u0131lmas\u0131<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.topfastpcb.com\/tr\/blog\/what-is-pcb-surface-finishes\/#1_Hot_Air_Solder_Leveling_HASL\" >1.S\u0131cak Hava Lehim Tesviyesi (HASL)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.topfastpcb.com\/tr\/blog\/what-is-pcb-surface-finishes\/#2_Electroless_Nickel_Immersion_Gold_ENIG\" >2.Ak\u0131ms\u0131z Nikel Dald\u0131rma Alt\u0131n (ENIG)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.topfastpcb.com\/tr\/blog\/what-is-pcb-surface-finishes\/#3_Organic_Solderability_Preservative_OSP\" >3.Organik Lehimlenebilirlik Koruyucu (OSP)<\/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\/what-is-pcb-surface-finishes\/#4_Immersion_Tin_ImSn\" >4.Dald\u0131rma Kalay (ImSn)<\/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\/what-is-pcb-surface-finishes\/#5_Immersion_Silver_ImAg\" >5.Dald\u0131rma G\u00fcm\u00fc\u015f (ImAg)<\/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\/what-is-pcb-surface-finishes\/#6_Electroless_Nickel_Electroless_Palladium_Immersion_Gold_ENEPIG\" >6.Ak\u0131ms\u0131z Nikel Ak\u0131ms\u0131z Paladyum Dald\u0131rma Alt\u0131n (ENEPIG)<\/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\/what-is-pcb-surface-finishes\/#7_Electrolytic_Hard_Gold\" >7. Elektrolitik Sert Alt\u0131n<\/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\/what-is-pcb-surface-finishes\/#Selection_Decision_Tree\" >Se\u00e7im Karar A\u011fac\u0131<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.topfastpcb.com\/tr\/blog\/what-is-pcb-surface-finishes\/#5_Common_Failure_Clinics\" >5 Yayg\u0131n Ar\u0131za Klini\u011fi<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.topfastpcb.com\/tr\/blog\/what-is-pcb-surface-finishes\/#Pro_Tips_from_PCB_Manufacturers\" >PCB \u00dcreticilerinden Profesyonel \u0130pu\u00e7lar\u0131<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.topfastpcb.com\/tr\/blog\/what-is-pcb-surface-finishes\/#Cost-Performance_Tradeoff_Analysis\" >Maliyet-Performans \u00d6d\u00fcnle\u015fme Analizi<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.topfastpcb.com\/tr\/blog\/what-is-pcb-surface-finishes\/#Future_Trends_in_Surface_Finishes\" >Y\u00fczey \u0130\u015flemlerinde Gelecek Trendleri<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"PCB_Surface_Finishing_Core_Functions\"><\/span>PCB Y\u00fczey \u0130\u015flemenin Temel \u0130\u015flevleri<span class=\"ez-toc-section-end\"><\/span><\/h2><p>Fiziksel Koruma:Bak\u0131r\u0131n hava ve nem ile temas\u0131n\u0131 yal\u0131tarak oksidasyon, s\u00fclfidasyon ve di\u011fer a\u015f\u0131nd\u0131r\u0131c\u0131 reaksiyonlar\u0131 \u00f6nler;<br>Lehimlenebilirlik optimizasyonu: Lehim (\u00f6rn. lehim pastas\u0131) ve bak\u0131r katman aras\u0131nda g\u00fcvenilir bir ba\u011flant\u0131 sa\u011flamak i\u00e7in d\u00fcz ve kararl\u0131 bir lehimleme aray\u00fcz\u00fc sa\u011flay\u0131n;<br>Elektriksel performans garantisi: devre iletiminin kararl\u0131l\u0131\u011f\u0131n\u0131 korumak, bak\u0131r y\u00fczeyin bozulmas\u0131 nedeniyle empedans anormalliklerini veya k\u0131sa devre riskini \u00f6nlemek i\u00e7in.<\/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\/05\/PCB-Surface-Finishes-1.jpg\" alt=\"PCB Y\u00fczey \u0130\u015flemleri\" class=\"wp-image-2948\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/05\/PCB-Surface-Finishes-1.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/05\/PCB-Surface-Finishes-1-300x201.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/05\/PCB-Surface-Finishes-1-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"The_importance_of_PCB_surface_treatment\"><\/span>PCB y\u00fczey i\u015fleminin \u00f6nemi<span class=\"ez-toc-section-end\"><\/span><\/h2><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Core_purpose_to_solve_the_%E2%80%9Coxidation_problem%E2%80%9D_of_the_copper_surface\"><\/span>Temel ama\u00e7: bak\u0131r y\u00fczeyin \"oksidasyon sorununu\" \u00e7\u00f6zmek<span class=\"ez-toc-section-end\"><\/span><\/h3><p>Havadaki oksijen ile oda s\u0131cakl\u0131\u011f\u0131nda bak\u0131r, su buhar\u0131 temas\u0131 bak\u0131r oksit (CuO) veya alkali bak\u0131r karbonat (bak\u0131r ye\u015fili) \u00fcretecektir, bu oksitlenmi\u015f katmanlar lehimin \u0131slanabilirli\u011fini \u00f6nemli \u00f6l\u00e7\u00fcde azaltacakt\u0131r &#8212; \u00f6zellikle lehim \"lehimlemeyi reddediyor\", lehim ba\u011flant\u0131lar\u0131 yanl\u0131\u015f veya \u00e7atlak olarak kendini g\u00f6sterir. Y\u00fczey haz\u0131rl\u0131\u011f\u0131, bak\u0131r\u0131n oksitleyici ile temas yolunu radikal bir \u015fekilde engelleyen bir kaplama ile kaplayarak bak\u0131r y\u00fczeyin lehimleme s\u0131ras\u0131nda aktif olmas\u0131n\u0131 sa\u011flar.<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Industry_Importance_a_critical_process_throughout_the_PCB_life_cycle\"><\/span>End\u00fcstrideki \u00d6nemi: PCB ya\u015fam d\u00f6ng\u00fcs\u00fc boyunca kritik bir s\u00fcre\u00e7<span class=\"ez-toc-section-end\"><\/span><\/h3><p><strong>1.\u0130malat<\/strong><br>SMT (Y\u00fczey Montaj Teknolojisi) verimini sa\u011flay\u0131n ve zay\u0131f lehimlenebilirlik nedeniyle yeniden i\u015fleme maliyetlerini azalt\u0131n;<br>Kaplama homojenli\u011fi, lehimleme sonras\u0131 bile\u015fenlerin mekanik dayan\u0131m\u0131n\u0131 do\u011frudan etkiler (\u00f6rn. lehim ba\u011flant\u0131 gerilimi, kesme kuvveti).<\/p><p><strong>2. Depolama ve nakliye<br><\/strong>Uzun s\u00fcreli depolamada, kaplama neme, tuz spreyine ve di\u011fer \u00e7evresel fakt\u00f6rlerin erozyonuna kar\u015f\u0131 koyabilir (ekipmanl\u0131 k\u0131y\u0131 b\u00f6lgeleri gibi, PCB'lerin paslanmay\u0131 \u00f6nleme yetene\u011fine \u00f6zel dikkat g\u00f6stermesi gerekir);<br>Ta\u015f\u0131ma s\u0131ras\u0131nda s\u00fcrt\u00fcnme ve \u00e7arp\u0131\u015fmadan kaynaklanan bak\u0131r y\u00fczey hasar\u0131n\u0131 \u00f6nleyin.<\/p><p><strong>3. Sahne kullan\u0131m\u0131na adaptasyon<br><\/strong>Y\u00fcksek s\u0131cakl\u0131k ortamlar\u0131 (otomotiv elektroni\u011fi, end\u00fcstriyel kontrol gibi), kaplaman\u0131n y\u00fcksek s\u0131cakl\u0131klarda ayr\u0131\u015fmas\u0131n\u0131 veya oksidasyonunu \u00f6nlemek i\u00e7in ya\u015flanma direncine sahip olmas\u0131n\u0131 gerektirir;<br>Y\u00fcksek frekansl\u0131 devrelerde, kaplaman\u0131n d\u00fczl\u00fc\u011f\u00fc sinyal iletim kayb\u0131n\u0131 etkiler (\u00f6rne\u011fin, dald\u0131rma alt\u0131n i\u015flemi, kaplaman\u0131n iyi homojenli\u011fi nedeniyle RF PCB'lerde yayg\u0131n olarak kullan\u0131l\u0131r).<\/p><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"In-Depth_Comparison_of_7_PCB_Surface_Finishes\"><\/span>Yedi PCB Y\u00fczey Kaplamas\u0131n\u0131n Derinlemesine Kar\u015f\u0131la\u015ft\u0131r\u0131lmas\u0131<span class=\"ez-toc-section-end\"><\/span><\/h2><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Hot_Air_Solder_Leveling_HASL\"><\/span>1.S\u0131cak Hava Lehim Tesviyesi (HASL)<span class=\"ez-toc-section-end\"><\/span><\/h3><p><strong>S\u00fcre\u00e7 Prensibi<\/strong>:<br>PCB'nin 260\u00b0C erimi\u015f lehime (Sn63Pb37 veya SAC305) dald\u0131r\u0131lmas\u0131 ve ard\u0131ndan fazla lehimin y\u00fcksek bas\u0131n\u00e7l\u0131 s\u0131cak hava (400\u00b0C) ile uzakla\u015ft\u0131r\u0131lmas\u0131, d\u00fczensiz &#8220;tepelik&#8221; y\u00fczeyler olu\u015fturur.<\/p><p><strong>\u0130\u00e7in \u0130deal<\/strong>:<\/p><ul class=\"wp-block-list\"><li>T\u00fcketici elektroni\u011fi (\u015farj cihazlar\u0131, LED s\u00fcr\u00fcc\u00fcler)<\/li>\n\n<li>Maliyete duyarl\u0131 y\u00fcksek hacimli sipari\u015fler<\/li><\/ul><p><strong>Zor Ders<\/strong>:<br>Bir y\u00f6nlendirici \u00fcreticisi, kur\u015funsuz HASL kullanarak yayg\u0131n BGA bo\u015fluklar\u0131 ya\u015fad\u0131 ve sonu\u00e7ta maliyeti 0,17 $ \/ kart art\u0131ran bir &#8220;ped \u00f6n kalaylama&#8221; ad\u0131m\u0131 ekledi.<\/p><p><strong>Kritik Kontroller<\/strong>:<\/p><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Parametre<\/th><th>Hedef<\/th><th>Sapma Riski<\/th><\/tr><\/thead><tbody><tr><td>Lehim Cu i\u00e7eri\u011fi<\/td><td>&lt;0.7%<\/td><td>K\u0131r\u0131lgan lehim ba\u011flant\u0131lar\u0131<\/td><\/tr><tr><td>Hava b\u0131\u00e7a\u011f\u0131 a\u00e7\u0131s\u0131<\/td><td>75\u00b0\u00b12\u00b0<\/td><td>E\u015fit olmayan kal\u0131nl\u0131k<\/td><\/tr><tr><td>So\u011futma oran\u0131<\/td><td>&gt;4\u00b0C\/s<\/td><td>A\u015f\u0131r\u0131 p\u00fcr\u00fczl\u00fcl\u00fck<\/td><\/tr><\/tbody><\/table><\/figure><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Electroless_Nickel_Immersion_Gold_ENIG\"><\/span>2.Ak\u0131ms\u0131z Nikel Dald\u0131rma Alt\u0131n (ENIG)<span class=\"ez-toc-section-end\"><\/span><\/h3><p><strong>Katman Yap\u0131s\u0131<\/strong>:<br>&#8220;Sandwich&#8221; deposition: Ak\u0131ms\u0131z Ni (3-5\u03bcm) \u2192 Yer de\u011fi\u015ftirme Au (0,05-0,1\u03bcm). Ni, bak\u0131r &#8220;g\u00fcvenlik duvar\u0131,&#8221; Au ise &#8220;lehimleme aray\u00fcz\u00fc,&amp;#8221 olarak i\u015flev g\u00f6r\u00fcr;<\/p><p><strong>Y\u00fcksek Frekansl\u0131 Vaka \u00c7al\u0131\u015fmas\u0131<\/strong>:<br>Bir mmWave radar kart\u0131 OSP yerine ENIG'yi se\u00e7ti \u00e7\u00fcnk\u00fc Au&#8217;nun cilt etkisi kayb\u0131 daha d\u00fc\u015f\u00fckt\u00fc (@77GHz).<\/p><p><strong>Siyah Ped Analizi<\/strong>:<br>Ni banyosu 91\u00b0C'yi a\u015ft\u0131\u011f\u0131nda, fosfor ayr\u0131\u015fmas\u0131 k\u0131r\u0131lgan Ni3P fazlar\u0131 olu\u015fturur (SEM &#8220;\u00e7atlak&#8221; morfolojisini g\u00f6sterir). \u00d6nleme:<\/p><ul class=\"wp-block-list\"><li>Sitrik asit tamponu ekleyin<\/li>\n\n<li>Darbe kaplamas\u0131 uygulay\u0131n<\/li>\n\n<li>Au biriktirmeden \u00f6nce mikro-etch ekleyin<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Organic_Solderability_Preservative_OSP\"><\/span>3.Organik Lehimlenebilirlik Koruyucu (OSP)<span class=\"ez-toc-section-end\"><\/span><\/h3><p><strong>Molek\u00fcler Koruma<\/strong>:<br>Benzimidazol-bak\u0131r \u015felatlar\u0131, 6 ayl\u0131k do\u011fal oksidasyona diren\u00e7li 0,2-0,5\u03bcm filmler olu\u015fturur.<\/p><p><strong>5G Tercih Edilen Se\u00e7im<\/strong>:<br>OSP+LDI kullanan bir baz istasyonu AAU kart\u0131, 0,3dB\/cm daha d\u00fc\u015f\u00fck ekleme kayb\u0131 (@28GHz) ile ENIG'ye k\u0131yasla 4,2 $\/m\u00b2 tasarruf sa\u011flad\u0131.<\/p><p><strong>Depolamada Yap\u0131lmamas\u0131 Gerekenler<\/strong>:<\/p><ul class=\"wp-block-list\"><li>RH&gt; film hidrolizine neden olur<\/li>\n\n<li>S\u00fclf\u00fcr i\u00e7eren ambalaj Cu2S siyah noktalar olu\u015fturur<\/li>\n\n<li>Ambalaj\u0131 a\u00e7t\u0131ktan sonra 24 saat i\u00e7inde SMT yapmal\u0131d\u0131r<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Immersion_Tin_ImSn\"><\/span>4.Dald\u0131rma Kalay (ImSn)<span class=\"ez-toc-section-end\"><\/span><\/h3><p><strong>Mikroyap\u0131<\/strong>:<br>Cu6Sn5 intermetalik kal\u0131nl\u0131\u011f\u0131 (EDX ile ideal: 1,2-1,8\u03bcm) g\u00fcvenilirli\u011fi belirler.<\/p><p><strong>Otomotivde Ba\u015far\u0131<\/strong>:<br>Bir ECU mod\u00fcl\u00fc, ENIG&#8217;nin 2400x'ine kar\u015f\u0131 ImSn ile 3000x -40\u00b0C~125\u00b0C d\u00f6ng\u00fclerini ge\u00e7ti.<\/p><p><strong>S\u00fcre\u00e7 Riskleri<\/strong>:<\/p><ul class=\"wp-block-list\"><li>Kalay b\u0131y\u0131k b\u00fcy\u00fcmesi (yeniden ak\u0131\u015f \u00f6n ya\u015fland\u0131rmas\u0131 ile bast\u0131r\u0131l\u0131r)<\/li>\n\n<li>\u00c7ift tarafl\u0131 levhalarda \u00e7apraz kontaminasyon<\/li>\n\n<li>Al tel ba\u011flama ile uyumsuz<\/li><\/ul><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\/05\/PCB-Surface-Finishes-2.jpg\" alt=\"PCB Y\u00fczey \u0130\u015flemleri\" class=\"wp-image-2949\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/05\/PCB-Surface-Finishes-2.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/05\/PCB-Surface-Finishes-2-300x201.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/05\/PCB-Surface-Finishes-2-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_Immersion_Silver_ImAg\"><\/span>5.Dald\u0131rma G\u00fcm\u00fc\u015f (ImAg)<span class=\"ez-toc-section-end\"><\/span><\/h3><p><strong>Sinyal B\u00fct\u00fcnl\u00fc\u011f\u00fc Kenar\u0131<\/strong>:<br>10GHz ekleme kayb\u0131 ENIG'den daha d\u00fc\u015f\u00fckt\u00fcr (IPC-6012B'ye g\u00f6re).<\/p><p><strong>G\u00f6\u00e7 Kar\u015f\u0131 \u00d6nlemleri<\/strong>:<br>&#8220;Nanopar\u00e7ac\u0131k katk\u0131s\u0131&#8221; 48V g\u00fc\u00e7 mod\u00fclleri i\u00e7in ge\u00e7i\u015f e\u015fi\u011fini 3,1V'tan 5,6V'a y\u00fckseltir.<\/p><p><strong>Kal\u0131nl\u0131k Kontrol\u00fc<\/strong>:<\/p><ul class=\"wp-block-list\"><li>Bir inhibit\u00f6r olarak sodyum tiyos\u00fclfat<\/li>\n\n<li>Sprey tipi kaplama tank\u0131<\/li>\n\n<li>\u0130\u015flem sonras\u0131 kromat pasivasyonu<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"6_Electroless_Nickel_Electroless_Palladium_Immersion_Gold_ENEPIG\"><\/span>6.Ak\u0131ms\u0131z Nikel Ak\u0131ms\u0131z Paladyum Dald\u0131rma Alt\u0131n (ENEPIG)<span class=\"ez-toc-section-end\"><\/span><\/h3><p><strong>Katman \u0130novasyonu<\/strong>:<br>Ni (3-4\u03bcm) ve Au (0.03-0.05\u03bcm) aras\u0131ndaki 0.1-0.2\u03bcm Pd, Au dif\u00fczyonunu \u00f6nler.<\/p><p><strong>SiP Uygulamas\u0131<\/strong>:<br>ENEPIG kullan\u0131larak kar\u0131\u015f\u0131k Au tel\/SnAgCu lehimleme elde edilen bir 3D paket.<\/p><p><strong>Maliyet Optimizasyonu<\/strong>:<\/p><ul class=\"wp-block-list\"><li>Gradyan Pd kal\u0131nl\u0131\u011f\u0131 (0,15\u03bcm kenar\/0,08\u03bcm merkez)<\/li>\n\n<li>Saf Pd yerine Pd-Co ala\u015f\u0131m\u0131<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"7_Electrolytic_Hard_Gold\"><\/span>7. Elektrolitik Sert Alt\u0131n<span class=\"ez-toc-section-end\"><\/span><\/h3><p><strong>Askeri S\u0131n\u0131f Koruma<\/strong>:<br>180HV sertlikte Co katk\u0131l\u0131 Au (1-3\u03bcm) ENIG'den 50 kat daha fazla a\u015f\u0131nmaya dayan\u0131r.<\/p><p><strong>Konekt\u00f6r \u00d6zellikleri<\/strong>:<\/p><ul class=\"wp-block-list\"><li>Alt\u0131n parmak e\u011fimi: 30\u00b0\u00b11\u00b0<\/li>\n\n<li>Ni kal\u0131nl\u0131\u011f\u0131 \u22655\u03bcm<\/li>\n\n<li>3mm ge\u00e7i\u015f b\u00f6lgeleri gerekli<\/li><\/ul><p><strong>Maliyet Tuza\u011f\u0131<\/strong>:<br>Bir arka panelin hatal\u0131 kaplama alan\u0131, kaplama maliyetini toplam\u0131n %8'inden '\u00fcne \u00e7\u0131karm\u0131\u015ft\u0131r.<\/p><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Selection_Decision_Tree\"><\/span>Se\u00e7im Karar A\u011fac\u0131<span class=\"ez-toc-section-end\"><\/span><\/h2><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"723\" height=\"549\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/05\/Selection-Decision-Tree.jpg\" alt=\"Se\u00e7im Karar A\u011fac\u0131\" class=\"wp-image-2946\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/05\/Selection-Decision-Tree.jpg 723w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/05\/Selection-Decision-Tree-300x228.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/05\/Selection-Decision-Tree-16x12.jpg 16w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/05\/Selection-Decision-Tree-600x456.jpg 600w\" sizes=\"auto, (max-width: 723px) 100vw, 723px\" \/><\/figure><\/div><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_Common_Failure_Clinics\"><\/span>5 Yayg\u0131n Ar\u0131za Klini\u011fi<span class=\"ez-toc-section-end\"><\/span><\/h2><p><strong>S1: Yeniden ak\u0131\u015ftan sonra ENIG pedleri \u00fczerinde siyah kal\u0131nt\u0131lar?<\/strong><br>\u2192 &#8220;Alt\u0131n gevrekle\u015fmesi&#8221;! Hemen kontrol edin:<\/p><ol class=\"wp-block-list\"><li>Ni-P i\u00e7eri\u011fi (%7-9 optimum)<\/li>\n\n<li>Au kal\u0131nl\u0131\u011f\u0131 &gt;0.08\u03bcm?<\/li>\n\n<li>Lehim pastas\u0131 Bi i\u00e7eri\u011fi<\/li><\/ol><p><strong>S2: 3 ayl\u0131k depolamadan sonra ImSn \u00fczerinde kalay b\u0131y\u0131klar\u0131?<\/strong><br>\u2192 &#8220;kurtarma \u00fc\u00e7l\u00fcs\u00fcn\u00fc&#8221; \u00e7al\u0131\u015ft\u0131r\u0131n:<\/p><ol class=\"wp-block-list\"><li>150\u00b0C'de 2 saat pi\u015firme<\/li>\n\n<li>Anti-dif\u00fczyon nano kaplamas\u0131 uygulay\u0131n<\/li>\n\n<li>Mat teneke i\u015flemine ge\u00e7in<\/li><\/ol><p><strong>S3: OSP kartlar\u0131 birden fazla yeniden ak\u0131\u015ftan sonra zay\u0131f \u0131slanabilirlik g\u00f6steriyor mu?<\/strong><br>\u2192 Organik film bozulur! Bu ad\u0131mlar\u0131 uygulay\u0131n:<\/p><ol class=\"wp-block-list\"><li>Yeniden ak\u0131\u015f tepe s\u0131cakl\u0131\u011f\u0131n\u0131n 245\u00b0C'yi a\u015fmad\u0131\u011f\u0131n\u0131 do\u011frulay\u0131n<\/li>\n\n<li>Saklama s\u00fcresini kontrol edin &#8211; OSP 6 ay sonra bozulur<\/li>\n\n<li>Yeniden ak\u0131\u015f s\u0131ras\u0131nda nitrojen atmosferi eklemeyi d\u00fc\u015f\u00fcn\u00fcn<\/li><\/ol><p><strong>S4: ENEPIG kartlar\u0131 kablo ba\u011f\u0131 \u00e7ekme testlerinde ba\u015far\u0131s\u0131z m\u0131 oluyor?<\/strong><br>\u2192 Genellikle bir paladyum katman\u0131 sorunu:<\/p><ol class=\"wp-block-list\"><li>Pd kal\u0131nl\u0131\u011f\u0131n\u0131 \u00f6l\u00e7\u00fcn (0,15-0,25\u03bcm ideal)<\/li>\n\n<li>Pd oksidasyonunu kontrol edin (XPS analizi \u00f6nerilir)<\/li>\n\n<li>PD banyosu pH de\u011ferini 8,2-8,6 aral\u0131\u011f\u0131na ayarlay\u0131n<\/li><\/ol><p><strong>S5: D\u00fczensiz lehim kal\u0131nl\u0131\u011f\u0131na sahip HASL levhalar\u0131n\u0131z var m\u0131?<\/strong><br>\u2192 Hava b\u0131\u00e7a\u011f\u0131 kalibrasyonu gerekli:<\/p><ol class=\"wp-block-list\"><li>Hava b\u0131\u00e7a\u011f\u0131 bas\u0131nc\u0131n\u0131 do\u011frulay\u0131n (25-35 psi tipik)<\/li>\n\n<li>Seviyeleme s\u00fcresini kontrol edin (optimum 3-5 saniye)<\/li>\n\n<li>Pano destek armat\u00fcrlerini \u00e7arp\u0131kl\u0131k a\u00e7\u0131s\u0131ndan inceleyin<\/li><\/ol><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Pro_Tips_from_PCB_Manufacturers\"><\/span>Profesyonel \u0130pu\u00e7lar\u0131 <a href=\"https:\/\/www.topfastpcb.com\/tr\/\">PCB \u00dcreticileri<\/a><span class=\"ez-toc-section-end\"><\/span><\/h2><ol class=\"wp-block-list\"><li><strong>HASL<\/strong> &#8211; \u00c7ift tarafl\u0131 levhalar i\u00e7in, g\u00f6lge etkisini \u00f6nlemek i\u00e7in &#8220;\u00e7ift dald\u0131rma&#8221; i\u015flemi talep edin<\/li>\n\n<li><strong>ENIG<\/strong> &#8211; En iyi g\u00fcvenilirlik i\u00e7in her zaman &#8220;orta fosforlu&#8221; nikel (%6-9 P) belirtin<\/li>\n\n<li><strong>OSP<\/strong> &#8211; Y\u00fcksek g\u00fcvenilirlikli uygulamalar i\u00e7in &#8220;Tip 3&#8221; OSP form\u00fclasyonlar\u0131n\u0131 se\u00e7in<\/li>\n\n<li><strong>ImSn<\/strong> &#8211; Azot dolaplar\u0131nda saklama raf \u00f6mr\u00fcn\u00fc 6 ila 12 ay uzat\u0131r<\/li>\n\n<li><strong>ImAg<\/strong> &#8211; Levhalar birden fazla termal d\u00f6ng\u00fcye maruz kalacaksa kararmay\u0131 \u00f6nleyici i\u015flem ekleyin<\/li>\n\n<li><strong>ENEPIG<\/strong> &#8211; Esnek PCB uygulamalar\u0131 i\u00e7in &#8220;d\u00fc\u015f\u00fck gerilimli nikel&#8221; belirtin<\/li>\n\n<li><strong>Sert Alt\u0131n<\/strong> &#8211; Optimum a\u015f\u0131nma direnci i\u00e7in kobalt i\u00e7eri\u011fi %0,1-0,3 olmal\u0131d\u0131r<\/li><\/ol><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Cost-Performance_Tradeoff_Analysis\"><\/span>Maliyet-Performans \u00d6d\u00fcnle\u015fme Analizi<span class=\"ez-toc-section-end\"><\/span><\/h2><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Bitirmek<\/th><th>G\u00f6receli Maliyet<\/th><th>Lehimlenebilirlik<\/th><th>Raf \u00d6mr\u00fc<\/th><th>Sinyal Kayb\u0131<\/th><\/tr><\/thead><tbody><tr><td>HASL<\/td><td>$<\/td><td>\u2605\u2605\u2605\u2605\u2606<\/td><td>12 ay<\/td><td>Y\u00fcksek<\/td><\/tr><tr><td>ENIG<\/td><td>$$$$<\/td><td>\u2605\u2605\u2605\u2606\u2606<\/td><td>12 ay<\/td><td>Orta<\/td><\/tr><tr><td>OSP<\/td><td>$<\/td><td>\u2605\u2605\u2605\u2605\u2606<\/td><td>6 ay<\/td><td>En d\u00fc\u015f\u00fck<\/td><\/tr><tr><td>ImSn<\/td><td>$$<\/td><td>\u2605\u2605\u2605\u2605\u2605<\/td><td>6 ay<\/td><td>Orta<\/td><\/tr><tr><td>ImAg<\/td><td>$$$<\/td><td>\u2605\u2605\u2605\u2605\u2606<\/td><td>9 ay<\/td><td>D\u00fc\u015f\u00fck<\/td><\/tr><tr><td>ENEPIG<\/td><td>$$$$$<\/td><td>\u2605\u2605\u2605\u2606\u2606<\/td><td>12 ay<\/td><td>Orta<\/td><\/tr><tr><td>Sert Alt\u0131n<\/td><td>$$$$$$<\/td><td>\u2605\u2605\u2606\u2606\u2606<\/td><td>24 ay<\/td><td>Y\u00fcksek<\/td><\/tr><\/tbody><\/table><\/figure><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\/05\/PCB-Surface-Finishes-4.jpg\" alt=\"PCB Y\u00fczey \u0130\u015flemleri\" class=\"wp-image-2950\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/05\/PCB-Surface-Finishes-4.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/05\/PCB-Surface-Finishes-4-300x201.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/05\/PCB-Surface-Finishes-4-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Future_Trends_in_Surface_Finishes\"><\/span>Y\u00fczey \u0130\u015flemlerinde Gelecek Trendleri<span class=\"ez-toc-section-end\"><\/span><\/h2><ol class=\"wp-block-list\"><li><strong>Nanokompozit OSP<\/strong> &#8211; Grafen ile geli\u015ftirilmi\u015f form\u00fclasyonlar denemelerde 2 kat daha uzun raf \u00f6mr\u00fc g\u00f6steriyor<\/li>\n\n<li><strong>D\u00fc\u015f\u00fck S\u0131cakl\u0131k ENIG<\/strong> &#8211; Yeni kimyasallar geleneksel 85\u00b0C'ye k\u0131yasla 65\u00b0C'de i\u015fleme olana\u011f\u0131 sa\u011fl\u0131yor<\/li>\n\n<li><strong>Se\u00e7ici Y\u00fczeyler<\/strong> &#8211; Tek bir pano \u00fczerinde farkl\u0131 y\u00fczeylerin birle\u015ftirilmesi (\u00f6rn. ENIG + OSP)<\/li>\n\n<li><strong>Kendi Kendini \u0130yile\u015ftiren Filmler<\/strong> &#8211; Yeniden ak\u0131\u015f s\u0131ras\u0131nda k\u00fc\u00e7\u00fck \u00e7izikleri onaran deneysel OSP<\/li>\n\n<li><strong>Halojensiz Prosesler<\/strong> &#8211; Yakla\u015fan AB \u00e7evre d\u00fczenlemelerini kar\u015f\u0131lamak<\/li><\/ol><p>Y\u00fczey kaplamalar\u0131n\u0131 de\u011ferlendirirken \u015funu unutmay\u0131n: evrensel bir &#8220;en iyi&#8221; se\u00e7enek yoktur &#8211; yaln\u0131zca \u00f6zel tasar\u0131m gereksinimleriniz, b\u00fct\u00e7e k\u0131s\u0131tlamalar\u0131n\u0131z ve \u00fcretim yetenekleriniz i\u00e7in en uygun \u00e7\u00f6z\u00fcm vard\u0131r. En pahal\u0131 kaplama mutlaka do\u011fru se\u00e7im de\u011fildir, t\u0131pk\u0131 en ekonomik se\u00e7ene\u011fin sahada ar\u0131zalara yol a\u00e7abilece\u011fi gibi. Se\u00e7iminizi tamamlamadan \u00f6nce her zaman ger\u00e7ek PCB tasar\u0131m\u0131n\u0131z ve bile\u015fenlerinizle ger\u00e7ek d\u00fcnya testleri yap\u0131n.<\/p>","protected":false},"excerpt":{"rendered":"<p>T\u00fcketici elektroni\u011finden havac\u0131l\u0131k ekipmanlar\u0131na kadar PCB y\u00fczey kaplamalar\u0131 \u00fcr\u00fcn g\u00fcvenilirli\u011fini \u00f6nemli \u00f6l\u00e7\u00fcde etkiler.Bu k\u0131lavuz, 7 ana s\u00fcreci mikroyap\u0131sal d\u00fczeyde incelemekte, maliyet\/performans\u0131 kar\u015f\u0131la\u015ft\u0131rmakta, ENIG siyah ped ve OSP karbonizasyonu gibi ar\u0131za mekanizmalar\u0131n\u0131 ortaya koymakta ve farkl\u0131 b\u00fct\u00e7eler\/gereksinimler i\u00e7in optimum se\u00e7im stratejileri sunmaktad\u0131r.<\/p>","protected":false},"author":1,"featured_media":2947,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[109],"tags":[266],"class_list":["post-2945","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-faq","tag-pcb-surface-finishes"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What is PCB Surface Finishes? 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