{"id":6582,"date":"2026-11-15T08:00:00","date_gmt":"2026-11-15T00:00:00","guid":{"rendered":"https:\/\/www.topfastpcb.com\/?p=6582"},"modified":"2026-09-24T16:04:09","modified_gmt":"2026-09-24T08:04:09","slug":"mcpcb-aluminum-vs-copper-base","status":"publish","type":"post","link":"https:\/\/www.topfastpcb.com\/tr\/blog\/mcpcb-aluminum-vs-copper-base\/","title":{"rendered":"Metal \u00c7ekirdekli PCB\u2019ler (MCPCB): Y\u00fcksek G\u00fc\u00e7l\u00fc LED\u2019ler \u0130\u00e7in Al\u00fcminyum ve Bak\u0131r Taban Kar\u015f\u0131la\u015ft\u0131rmas\u0131"},"content":{"rendered":"<div style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/11\/Metal-Core-PCBs-MCPCB-2.jpg\" alt=\"Metal \u00c7ekirdekli PCB&#039;ler (MCPCB)\" width=\"600\" height=\"385\" class=\"aligncenter size-full wp-image-6696\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/11\/Metal-Core-PCBs-MCPCB-2.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/11\/Metal-Core-PCBs-MCPCB-2-300x193.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/11\/Metal-Core-PCBs-MCPCB-2-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/div>\n<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\/mcpcb-aluminum-vs-copper-base\/#Introduction_to_Metal_Core_PCBs_MCPCBs\" >Metal \u00c7ekirdekli PCB\u2019lere (MCPCB\u2019ler) Giri\u015f<\/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\/mcpcb-aluminum-vs-copper-base\/#The_Crucial_Role_of_Thermal_Management_in_High-Power_LEDs\" >Y\u00fcksek G\u00fc\u00e7l\u00fc LED\u2019lerde Is\u0131 Y\u00f6netiminin Hayati Rol\u00fc<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.topfastpcb.com\/tr\/blog\/mcpcb-aluminum-vs-copper-base\/#Anatomy_of_a_Metal_Core_PCB\" >Metal \u00c7ekirdekli PCB\u2019nin Yap\u0131s\u0131<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.topfastpcb.com\/tr\/blog\/mcpcb-aluminum-vs-copper-base\/#Aluminum_MCPCBs_The_Industry_Standard\" >Al\u00fcminyum MCPCB\u2019ler: Sekt\u00f6r Standard\u0131<\/a><\/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\/mcpcb-aluminum-vs-copper-base\/#Copper_MCPCBs_For_Maximum_Thermal_Performance\" >Bak\u0131r MCPCB\u2019ler: Maksimum Is\u0131l Performans \u0130\u00e7in<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.topfastpcb.com\/tr\/blog\/mcpcb-aluminum-vs-copper-base\/#Aluminum_vs_Copper_MCPCB_A_Direct_Technical_Comparison\" >Al\u00fcminyum ve Bak\u0131r MCPCB: Do\u011frudan Teknik Kar\u015f\u0131la\u015ft\u0131rma<\/a><\/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\/mcpcb-aluminum-vs-copper-base\/#How_to_Select_Between_Aluminum_and_Copper_for_Your_LED_Project_Step-by-Step_Guide\" >LED Projeniz \u0130\u00e7in Al\u00fcminyum ve Bak\u0131r Aras\u0131nda Nas\u0131l Se\u00e7im Yap\u0131l\u0131r (Ad\u0131m Ad\u0131m K\u0131lavuz)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.topfastpcb.com\/tr\/blog\/mcpcb-aluminum-vs-copper-base\/#Frequently_Asked_Questions_FAQ\" >S\u0131k\u00e7a Sorulan Sorular (SSS)<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Introduction_to_Metal_Core_PCBs_MCPCBs\"><\/span>Metal \u00c7ekirdekli PCB\u2019lere (MCPCB\u2019ler) Giri\u015f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Kat\u0131 hal ayd\u0131nlatma alan\u0131ndaki h\u0131zl\u0131 ilerleme, \u0131\u015f\u0131k yayan diyot (LED) teknolojisinin s\u0131n\u0131rlar\u0131n\u0131 geni\u015fleterek, inan\u0131lmaz derecede yo\u011fun ve y\u00fcksek g\u00fc\u00e7l\u00fc LED dizilerinin geli\u015ftirilmesine yol a\u00e7m\u0131\u015ft\u0131r. Bu diyotlar\u0131n watt de\u011feri ve \u0131\u015f\u0131k verimlili\u011fi artt\u0131k\u00e7a, \u00fcrettikleri at\u0131k \u0131s\u0131 miktar\u0131 da artmaktad\u0131r. Do\u011fas\u0131 gere\u011fi d\u00fc\u015f\u00fck \u0131s\u0131 iletkenli\u011fine sahip geleneksel FR4 bask\u0131l\u0131 devre kartlar\u0131, modern y\u00fcksek parlakl\u0131kl\u0131 LED'lerin \u00fcretti\u011fi yerel \u0131s\u0131 ak\u0131\u015flar\u0131n\u0131 da\u011f\u0131tmak i\u00e7in son derece yetersiz kalmaktad\u0131r. \u0130\u015fte bu noktada Metal \u00c7ekirdekli Bask\u0131l\u0131 Devre Kart\u0131 (MCPCB) devreye girer.<\/p>\n<p>MCPCB, kritik bile\u015fenlerden \u0131s\u0131y\u0131 uzakla\u015ft\u0131rmak \u00fczere \u0131s\u0131 da\u011f\u0131t\u0131c\u0131 olarak bir baz metal malzemesi i\u00e7eren \u00f6zel bir devre kart\u0131d\u0131r. Is\u0131 iletken ancak elektriksel olarak yal\u0131tkan bir dielektrik katman kullanarak, MCPCB'ler \u0131s\u0131n\u0131n LED ba\u011flant\u0131 noktas\u0131ndan bak\u0131r devre yoluyla metal \u00e7ekirde\u011fe verimli bir \u015fekilde akmas\u0131n\u0131 sa\u011flar; metal \u00e7ekirdek ise termal enerjiyi ikincil bir \u0131s\u0131 emiciye aktar\u0131r. Y\u00fcksek g\u00fc\u00e7l\u00fc LED m\u00fchendisli\u011fi alan\u0131nda, baz metalin se\u00e7imi \u2014 a\u011f\u0131rl\u0131kl\u0131 olarak al\u00fcminyum veya bak\u0131r \u2014 t\u00fcm ayd\u0131nlatma sisteminin termal s\u0131n\u0131rlar\u0131n\u0131, mekanik \u00f6zelliklerini ve ekonomik uygulanabilirli\u011fini belirleyen kritik bir tasar\u0131m karar\u0131d\u0131r. <strong>Hakk\u0131nda daha fazla bilgi edinin <a href=\"\/tr\/blog\/bookbinder-rigid-flex-pcb\/\">Bookbinder Sert-Esnek PCB\u2019ler: \u00c7oklu Esnek Katmanlarda Uzunluk K\u0131s\u0131tlamalar\u0131n\u0131n \u00c7\u00f6z\u00fclmesi<\/a>.<\/strong><\/p>\n<h2><span class=\"ez-toc-section\" id=\"The_Crucial_Role_of_Thermal_Management_in_High-Power_LEDs\"><\/span>Y\u00fcksek G\u00fc\u00e7l\u00fc LED\u2019lerde Is\u0131 Y\u00f6netiminin Hayati Rol\u00fc<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>LED fizi\u011finde \u0131s\u0131, performans ve uzun \u00f6m\u00fcrl\u00fcl\u00fc\u011f\u00fcn en b\u00fcy\u00fck d\u00fc\u015fman\u0131d\u0131r. Is\u0131y\u0131 k\u0131z\u0131l\u00f6tesi enerji olarak d\u0131\u015far\u0131ya yayan akkor ampullerin aksine, LED\u2019ler elektrol\u00fcminesans yoluyla \u00e7al\u0131\u015f\u0131r ve ortaya \u00e7\u0131kan at\u0131k \u0131s\u0131y\u0131 bask\u0131l\u0131 devre kart\u0131na geri iletir. Bu \u0131s\u0131 verimli bir \u015fekilde tahliye edilmezse, yar\u0131 iletken yongan\u0131n ba\u011flant\u0131 s\u0131cakl\u0131\u011f\u0131 h\u0131zla artacakt\u0131r.<\/p>\n<div style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/11\/Metal-Core-PCBs-MCPCB-1.jpg\" alt=\"Metal \u00c7ekirdekli PCB&#039;ler (MCPCB)\" width=\"600\" height=\"388\" class=\"aligncenter size-full wp-image-6695\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/11\/Metal-Core-PCBs-MCPCB-1.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/11\/Metal-Core-PCBs-MCPCB-1-300x194.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/11\/Metal-Core-PCBs-MCPCB-1-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/div>\n<p>Y\u00fcksek ba\u011flant\u0131 s\u0131cakl\u0131klar\u0131, y\u00fcksek g\u00fc\u00e7l\u00fc LED\u2019ler \u00fczerinde \u00fc\u00e7 felaket niteli\u011finde etkiye sahiptir. \u0130lk olarak, ciddi l\u00fcmen kayb\u0131na yol a\u00e7arak ayn\u0131 giri\u015f g\u00fcc\u00fc i\u00e7in \u0131\u015f\u0131k \u00e7\u0131k\u0131\u015f\u0131n\u0131 \u00f6nemli \u00f6l\u00e7\u00fcde azalt\u0131r. \u0130kincisi, beyaz LED'lerdeki fosfor kaplamas\u0131n\u0131n bozulmas\u0131n\u0131 h\u0131zland\u0131r\u0131r ve zamanla renk koordinatlar\u0131nda kaymalara (renk kaymas\u0131) yol a\u00e7ar; bu durum, hassas ticari ve mimari ayd\u0131nlatma uygulamalar\u0131nda kabul edilemez. Son olarak, s\u00fcrekli y\u00fcksek s\u0131cakl\u0131klar ar\u0131zalar aras\u0131 ortalama s\u00fcreyi (MTBF) \u00f6nemli \u00f6l\u00e7\u00fcde azalt\u0131r ve armat\u00fcr\u00fcn end\u00fcstri standard\u0131 L70 veya L90 \u00f6m\u00fcr derecelendirmelerine (\u0131\u015f\u0131k \u00e7\u0131k\u0131\u015f\u0131n\u0131n s\u0131ras\u0131yla ba\u015flang\u0131\u00e7 de\u011ferinin veya '\u0131na d\u00fc\u015ft\u00fc\u011f\u00fc nokta) ula\u015fmas\u0131n\u0131 engeller. \u0130yi tasarlanm\u0131\u015f bir MCPCB arac\u0131l\u0131\u011f\u0131yla ger\u00e7ekle\u015ftirilen verimli termal y\u00f6netim, LED\u2019in g\u00fcvenli termal s\u0131n\u0131rlar\u0131 i\u00e7inde sorunsuz \u00e7al\u0131\u015fmas\u0131n\u0131 sa\u011flayarak hem verimlili\u011fi hem de \u00e7al\u0131\u015fma \u00f6mr\u00fcn\u00fc en \u00fcst d\u00fczeye \u00e7\u0131kar\u0131r.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Anatomy_of_a_Metal_Core_PCB\"><\/span>Metal \u00c7ekirdekli PCB\u2019nin Yap\u0131s\u0131<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Al\u00fcminyum ve bak\u0131r tabanlar aras\u0131ndaki farklar\u0131 tam olarak kavrayabilmek i\u00e7in, m\u00fchendislerin geleneksel Metal \u00c7ekirdekli PCB\u2019lerin standart \u00fc\u00e7 katmanl\u0131 yap\u0131s\u0131n\u0131 anlamalar\u0131 gerekir:<\/p>\n<p><strong>Devre Katman\u0131:<\/strong> En \u00fcst katman, standart elektrolitik veya haddelenmi\u015f bak\u0131r folyodan olu\u015fur (genellikle 1 oz ile 3 oz aras\u0131nda olmakla birlikte, a\u015f\u0131r\u0131 ak\u0131mlar i\u00e7in kal\u0131n bak\u0131r da kullan\u0131labilir). Bu katman, LED\u2019ler i\u00e7in elektriksel ba\u011flant\u0131lar\u0131n ve montaj yuvalar\u0131n\u0131n olu\u015fturulmas\u0131 amac\u0131yla a\u015f\u0131nd\u0131r\u0131l\u0131r. <strong>Hakk\u0131nda daha fazla bilgi edinin <a href=\"\/tr\/blog\/biocompatible-pcbs-medical-devices\/\">Biyouyumlu PCB\u2019ler: \u0130mplante Edilebilir T\u0131bbi Cihazlar i\u00e7in Geli\u015fmi\u015f Malzemeler<\/a>.<\/strong><\/p>\n<p><strong>Dielektrik Katman:<\/strong> Bu, MCPCB\u2019nin en kritik ve teknolojik a\u00e7\u0131dan en zorlu katman\u0131d\u0131r. Y\u00fcksek elektriksel yal\u0131t\u0131m (dielektrik k\u0131r\u0131lma dayan\u0131m\u0131) sa\u011flarken ayn\u0131 zamanda y\u00fcksek \u0131s\u0131 iletkenli\u011fine sahip olmal\u0131d\u0131r. Modern dielektrikler genellikle, al\u00fcminyum oksit, bor nitr\u00fcr veya al\u00fcminyum nitr\u00fcr gibi seramik dolgu maddeleriyle y\u00fcksek oranda zenginle\u015ftirilmi\u015f epoksi re\u00e7inelerinden olu\u015fur. Teknolojik geli\u015fmelere ra\u011fmen, bu katman genellikle sistemdeki ba\u015fl\u0131ca termal darbo\u011faz g\u00f6revi g\u00f6r\u00fcr.<\/p>\n<div style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/11\/Metal-Core-PCBs-MCPCB.jpg\" alt=\"Metal \u00c7ekirdekli PCB&#039;ler (MCPCB)\" width=\"600\" height=\"391\" class=\"aligncenter size-full wp-image-6694\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/11\/Metal-Core-PCBs-MCPCB.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/11\/Metal-Core-PCBs-MCPCB-300x196.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/11\/Metal-Core-PCBs-MCPCB-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/div>\n<p><strong>Metal \u00c7ekirdekli Taban Katman\u0131:<\/strong> Genellikle 1,0 mm ile 3,2 mm aras\u0131nda bir kal\u0131nl\u0131\u011fa sahip olan kart\u0131n taban\u0131. Bu masif metal d\u00fczlem, yanal bir \u0131s\u0131 da\u011f\u0131t\u0131c\u0131s\u0131 g\u00f6revi g\u00f6r\u00fcr; LED termal pedinden gelen olduk\u00e7a yerel bir \u0131s\u0131 ak\u0131s\u0131n\u0131 al\u0131r ve bu \u0131s\u0131, harici so\u011futucuya ge\u00e7meden \u00f6nce daha geni\u015f bir y\u00fczey alan\u0131na da\u011f\u0131t\u0131r. Burada se\u00e7ilen malzeme \u2014al\u00fcminyum veya bak\u0131r\u2014 kart\u0131n temel termal ve mekanik \u00f6zelliklerini belirler.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Aluminum_MCPCBs_The_Industry_Standard\"><\/span>Al\u00fcminyum MCPCB\u2019ler: Sekt\u00f6r Standard\u0131<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Al\u00fcminyum, MCPCB sekt\u00f6r\u00fcn\u00fcn tart\u0131\u015fmas\u0131z en \u00f6nemli malzemesidir. Ticari, end\u00fcstriyel ve otomotiv LED uygulamalar\u0131n\u0131n b\u00fcy\u00fck \u00e7o\u011funlu\u011fu i\u00e7in al\u00fcminyum, termal performans, fiziksel a\u011f\u0131rl\u0131k ve \u00fcretim maliyeti aras\u0131nda neredeyse m\u00fckemmel bir denge sa\u011flar. PCB \u00fcretiminde en yayg\u0131n olarak kullan\u0131lan ala\u015f\u0131mlar 5052, 6061 ve 1060't\u0131r; her biri termal iletkenlik ve mekanik sertlik aras\u0131nda biraz farkl\u0131 dengeler sunar. <strong>Hakk\u0131nda daha fazla bilgi edinin <a href=\"\/tr\/blog\/rf-pcb-design-rogers-materials\/\">RF PCB Tasar\u0131m\u0131: Rogers Malzemeleriyle Empedans E\u015fle\u015ftirme ve Dielektrik Kay\u0131p Kontrol\u00fc<\/a>.<\/strong><\/p>\n<p>Al\u00fcminyum taban\u0131n \u0131s\u0131 iletkenli\u011fi, kullan\u0131lan ala\u015f\u0131ma ba\u011fl\u0131 olarak genellikle 130 W\/m\u00b7K ile 237 W\/m\u00b7K aras\u0131nda de\u011fi\u015fir. Bu de\u011fer bak\u0131rdan daha d\u00fc\u015f\u00fck olmakla birlikte, FR4\u2019ten (sadece 0,25 W\/m\u00b7K) \u00e7ok daha \u00fcst\u00fcnd\u00fcr. \u00dcretim a\u00e7\u0131s\u0131ndan bak\u0131ld\u0131\u011f\u0131nda, al\u00fcminyumun i\u015flenmesi son derece kolayd\u0131r. Standart aletler kullan\u0131larak, CNC u\u00e7lar\u0131nda a\u015f\u0131r\u0131 a\u015f\u0131nmaya neden olmadan frezelenebilir, delinebilir ve delik a\u00e7\u0131labilir. Ayr\u0131ca al\u00fcminyum, do\u011fal olarak korozyona dayan\u0131kl\u0131d\u0131r ve zorlu ortamlarda korunmas\u0131 i\u00e7in genellikle basit bir eloksal kaplama veya kromat d\u00f6n\u00fc\u015f\u00fcm kaplamas\u0131 yeterlidir.<\/p>\n<p>Ancak al\u00fcminyumun fiziksel s\u0131n\u0131rlar\u0131 vard\u0131r. UV k\u00fcrleme LED'leri, y\u00fcksek l\u00fcmenli sahne ayd\u0131nlatmas\u0131 veya s\u0131k\u0131 bir \u015fekilde paketlenmi\u015f yonga-\u00fczerinde-kart (COB) dizileri gibi a\u015f\u0131r\u0131 y\u00fcksek g\u00fc\u00e7 yo\u011funluklu uygulamalarda, al\u00fcminyumun \u0131s\u0131 yayma direnci, ba\u011flant\u0131 noktas\u0131 s\u0131cakl\u0131klar\u0131n\u0131 g\u00fcvenli s\u0131n\u0131rlar i\u00e7inde tutmak i\u00e7in yeterli olmayabilir; bu da termal olarak daha etkili bir malzemeye ge\u00e7i\u015fi gerektirir.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Copper_MCPCBs_For_Maximum_Thermal_Performance\"><\/span>Bak\u0131r MCPCB\u2019ler: Maksimum Is\u0131l Performans \u0130\u00e7in<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Termal y\u00fckler al\u00fcminyumun kapasitesini a\u015ft\u0131\u011f\u0131nda, m\u00fchendisler bak\u0131ra y\u00f6nelir. Bak\u0131r (\u00f6zellikle y\u00fcksek safl\u0131kta C11000 veya benzeri ala\u015f\u0131mlar), yakla\u015f\u0131k 385 W\/m\u00b7K ila 400 W\/m\u00b7K aras\u0131nda bir termal iletkenli\u011fe sahiptir; bu, al\u00fcminyumunkinin neredeyse iki kat\u0131d\u0131r. Is\u0131 transferindeki bu muazzam art\u0131\u015f, bak\u0131r MCPCB'lerin \u0131s\u0131y\u0131 \u00f6nemli \u00f6l\u00e7\u00fcde daha h\u0131zl\u0131 emmesini ve yaymas\u0131n\u0131 sa\u011flayarak, alt tabakan\u0131n genel termal direncini azalt\u0131r.<\/p>\n<p>Bak\u0131r taban\u0131n en \u00f6nemli avantaj\u0131, son derece yo\u011fun \u0131s\u0131 ak\u0131\u015flar\u0131n\u0131 y\u00f6netebilme yetene\u011fidir. Bu \u00f6zellik, onu yo\u011fun \u015fekilde yerle\u015ftirilmi\u015f LED dizileri ve y\u00fcksek g\u00fc\u00e7l\u00fc tek yongal\u0131 LED\u2019ler i\u00e7in tercih edilen malzeme haline getirir. Ayr\u0131ca, bak\u0131r\u0131n fiziksel \u00f6zellikleri, Do\u011frudan Is\u0131 Yolu (DTP) PCB\u2019lerin \u00fcretilmesine olanak tan\u0131r. Bir DTP kart\u0131nda, \u0131s\u0131 yal\u0131tkan dielektrik tabaka, LED'in termal pedinin hemen alt\u0131ndan se\u00e7ici olarak kald\u0131r\u0131l\u0131r veya frezelenerek \u00e7\u0131kar\u0131l\u0131r. Ard\u0131ndan LED, kat\u0131 bak\u0131r taban \u00fczerindeki y\u00fckseltilmi\u015f bir kaideye do\u011frudan lehimlenir. Dielektrik darbo\u011faz\u0131n\u0131 tamamen atlayarak, DTP bak\u0131r kartlar d\u00fczlemsel kart tasar\u0131m\u0131nda m\u00fcmk\u00fcn olan en d\u00fc\u015f\u00fck termal direnci sunar. <strong>Hakk\u0131nda daha fazla bilgi edinin <a href=\"\/tr\/blog\/smt-stencil-design-nano-coating\/\">SMT \u015eablon Tasar\u0131m\u0131: Karma Teknoloji i\u00e7in Nano Kaplama ve Kademeli \u015eablonlar<\/a>.<\/strong><\/p>\n<p>Bu muazzam termal avantajlara ra\u011fmen, bak\u0131r\u0131n dikkate de\u011fer dezavantajlar\u0131 da vard\u0131r. Al\u00fcminyumdan \u00f6nemli \u00f6l\u00e7\u00fcde daha a\u011f\u0131rd\u0131r; bu da k\u00fctlenin en aza indirilmesi gereken havac\u0131l\u0131k, otomotiv veya ta\u015f\u0131nabilir ayd\u0131nlatma uygulamalar\u0131nda eleme nedeni olabilir. Bak\u0131r, hem hammadde hem de \u00fcretim a\u00e7\u0131s\u0131ndan da olduk\u00e7a pahal\u0131d\u0131r. \u0130\u015flenmesi daha zordur, freze u\u00e7lar\u0131n\u0131 daha h\u0131zl\u0131 a\u015f\u0131nd\u0131r\u0131r ve a\u00e7\u0131kta kalan ana metalin h\u0131zl\u0131 oksitlenmesini ve kararmas\u0131n\u0131 \u00f6nlemek i\u00e7in kaplama (ENIG veya HASL gibi) gerektirir.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Aluminum_vs_Copper_MCPCB_A_Direct_Technical_Comparison\"><\/span>Al\u00fcminyum ve Bak\u0131r MCPCB: Do\u011frudan Teknik Kar\u015f\u0131la\u015ft\u0131rma<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Nicel bir m\u00fchendislik karar\u0131n\u0131 kolayla\u015ft\u0131rmak amac\u0131yla, iki temel malzeme aras\u0131ndaki do\u011frudan kar\u015f\u0131la\u015ft\u0131rmal\u0131 \u00f6l\u00e7\u00fctlere bir g\u00f6z atal\u0131m:<\/p>\n<ul>\n<li><strong>Is\u0131 \u0130letkenli\u011fi:<\/strong> Al\u00fcminyuma (~200 W\/m\u00b7K) k\u0131yasla bak\u0131r bu kategoride \u00fcst\u00fcnl\u00fck sa\u011flamaktad\u0131r (~400 W\/m\u00b7K). Bak\u0131r, \u0131s\u0131y\u0131 daha h\u0131zl\u0131 da\u011f\u0131t\u0131r ve LED yongas\u0131n\u0131n alt\u0131ndaki yerel s\u0131cak noktalar\u0131 azalt\u0131r.<\/li>\n<li><strong>Yo\u011funluk ve A\u011f\u0131rl\u0131k:<\/strong> Al\u00fcminyum (~2,7 g\/cm\u00b3), bak\u0131r\u0131n (~8,9 g\/cm\u00b3) a\u011f\u0131rl\u0131\u011f\u0131n\u0131n yakla\u015f\u0131k \u00fc\u00e7te biri kadard\u0131r. A\u011f\u0131rl\u0131\u011f\u0131n \u00f6nemli oldu\u011fu tasar\u0131mlarda al\u00fcminyum a\u00e7\u0131k ara \u00fcst\u00fcnd\u00fcr.<\/li>\n<li><strong>Is\u0131l Genle\u015fme Katsay\u0131s\u0131 (CTE):<\/strong> Bak\u0131r\u0131n CTE de\u011feri (~16,5 ppm\/\u00b0C), genellikle al\u00fcminyumun CTE de\u011ferinden (~23,6 ppm\/\u00b0C) daha \u00e7ok, LED\u2019lerin kendilerindeki dielektrik ve seramik alt tabakalar\u0131n CTE de\u011ferlerine yak\u0131nd\u0131r. Bu daha yak\u0131n CTE uyumu, h\u0131zl\u0131 termal d\u00f6ng\u00fc s\u0131ras\u0131nda lehim ba\u011flant\u0131 noktalar\u0131 \u00fczerindeki termomekanik kesme gerilmelerini azaltarak uzun vadeli g\u00fcvenilirli\u011fi art\u0131r\u0131r.<\/li>\n<li><strong>\u0130\u015flenebilirlik:<\/strong> Al\u00fcminyum daha yumu\u015fakt\u0131r ve i\u015flenebilirli\u011fi y\u00fcksektir; bu da h\u0131zl\u0131 ve a\u015f\u0131nman\u0131n az oldu\u011fu frezeleme ve delme i\u015flemlerine olanak tan\u0131r. Bak\u0131r ise \u00f6zel tak\u0131m ilerleme h\u0131zlar\u0131 ve devir h\u0131zlar\u0131 gerektirir; bu da imalat s\u00fcresini ve tak\u0131m maliyetlerini art\u0131r\u0131r.<\/li>\n<li><strong>Maliyet:<\/strong> Bak\u0131r, birinci s\u0131n\u0131f bir malzeme olarak kabul edilir. Piyasadaki dalgalanmalara ba\u011fl\u0131 olarak, bak\u0131r bazl\u0131 bir MCPCB\u2019nin fiyat\u0131, e\u015fde\u011fer bir al\u00fcminyum bazl\u0131 kart\u0131n fiyat\u0131n\u0131n iki ila d\u00f6rt kat\u0131 aras\u0131nda de\u011fi\u015febilir.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"How_to_Select_Between_Aluminum_and_Copper_for_Your_LED_Project_Step-by-Step_Guide\"><\/span>LED Projeniz \u0130\u00e7in Al\u00fcminyum ve Bak\u0131r Aras\u0131nda Nas\u0131l Se\u00e7im Yap\u0131l\u0131r (Ad\u0131m Ad\u0131m K\u0131lavuz)<span class=\"ez-toc-section-end\"><\/span><\/h2><div class=\"schema-how-to wp-block-yoast-how-to-block\"><p class=\"schema-how-to-description\">A\u015fa\u011f\u0131daki m\u00fchendislik kurallar\u0131na uyun.<\/p> <ol class=\"schema-how-to-steps\"><li class=\"schema-how-to-step\" id=\"how-to-step-1\"><strong class=\"schema-how-to-step-name\">Sistem Is\u0131l Y\u00fck\u00fcn\u00fc Hesaplay\u0131n<\/strong> <p class=\"schema-how-to-step-text\">\u00d6ncelikle LED dizinizin toplam g\u00fc\u00e7 kayb\u0131n\u0131 belirleyin. \u0130lgili LED veri sayfas\u0131n\u0131 inceleyerek maksimum \u00e7al\u0131\u015fma ba\u011flant\u0131 noktas\u0131 s\u0131cakl\u0131\u011f\u0131n\u0131 ($T_{j-max}$) ve ba\u011flant\u0131 noktas\u0131ndan lehim yuvas\u0131na kadar olan termal direnci ($R_{th-js}$) bulun. Bu, \u00e7al\u0131\u015fman\u0131z i\u00e7in temel termal b\u00fct\u00e7eyi sa\u011flayacakt\u0131r.<\/p> <\/li><li class=\"schema-how-to-step\" id=\"how-to-step-2\"><strong class=\"schema-how-to-step-name\">Birincil Is\u0131l Darbo\u011faz\u0131 Belirleyin<\/strong> <p class=\"schema-how-to-step-text\">Metal taban\u0131n ger\u00e7ekten s\u0131n\u0131rlay\u0131c\u0131 fakt\u00f6r olup olmad\u0131\u011f\u0131n\u0131 de\u011ferlendirin. Bir\u00e7ok standart MCPCB\u2019de, dielektrik tabaka birincil termal darbo\u011fazd\u0131r. Hemen pahal\u0131 bir bak\u0131r tabana ge\u00e7meden \u00f6nce, al\u00fcminyum taban \u00fczerindeki dielektri\u011fi y\u00fckseltmenin (\u00f6rne\u011fin, 1 W\/m\u00b7K'l\u0131k bir dielektrikten 5 W\/m\u00b7K veya 8 W\/m\u00b7K'l\u0131k bir dielektri\u011fe ge\u00e7menin) daha d\u00fc\u015f\u00fck bir maliyetle gerekli termal direnci sa\u011flay\u0131p sa\u011flamad\u0131\u011f\u0131n\u0131 hesaplay\u0131n.<\/p> <\/li><li class=\"schema-how-to-step\" id=\"how-to-step-3\"><strong class=\"schema-how-to-step-name\">Alan ve A\u011f\u0131rl\u0131k K\u0131s\u0131tlamalar\u0131n\u0131 De\u011ferlendirin<\/strong> <p class=\"schema-how-to-step-text\">Ayd\u0131nlatma armat\u00fcr\u00fcn\u00fcz\u00fcn g\u00f6vdesi, \u015fasisi veya muhafazas\u0131n\u0131n fiziksel ve mekanik s\u0131n\u0131rlamalar\u0131n\u0131 g\u00f6zden ge\u00e7irin. \u00dcr\u00fcn havac\u0131l\u0131k, otomotiv farlar\u0131 veya ta\u015f\u0131nabilir el fenerleri i\u00e7in tasarlanm\u0131\u015fsa, bak\u0131r\u0131n y\u00fcksek yo\u011funlu\u011fu k\u00fctle b\u00fct\u00e7enizi a\u015fabilir; bu durumda, termal k\u0131s\u0131tlamalardan ba\u011f\u0131ms\u0131z olarak al\u00fcminyum zorunlu bir se\u00e7im haline gelir.<\/p> <\/li><li class=\"schema-how-to-step\" id=\"how-to-step-4\"><strong class=\"schema-how-to-step-name\">Proje B\u00fct\u00e7esini De\u011ferlendirin<\/strong> <p class=\"schema-how-to-step-text\">Bak\u0131r MCPCB\u2019ler, al\u00fcminyuma k\u0131yasla \u00f6nemli bir maliyet art\u0131\u015f\u0131na neden olur. Kapsaml\u0131 bir maliyet-fayda analizi yap\u0131n. Bak\u0131r\u0131n sundu\u011fu geli\u015fmi\u015f termal performans\u0131n \u2014ki bu sayede daha y\u00fcksek s\u00fcr\u00fc\u015f ak\u0131mlar\u0131nda daha az say\u0131da LED \u00e7al\u0131\u015ft\u0131rman\u0131za veya daha k\u00fc\u00e7\u00fck bir harici \u0131s\u0131 emici kullanman\u0131za olanak sa\u011flayabilir\u2014 nihayetinde daha y\u00fcksek PCB \u00fcretim maliyetlerini telafi edip etmedi\u011fini belirleyin.<\/p> <\/li><li class=\"schema-how-to-step\" id=\"how-to-step-5\"><strong class=\"schema-how-to-step-name\">Do\u011frudan Termal Yolu (DTP) Teknolojilerini Dikkate Al\u0131n<\/strong> <p class=\"schema-how-to-step-text\">Termal modelleme sonu\u00e7lar\u0131n\u0131z, standart dielektrik katmanlar\u0131n yeterli olmayaca\u011f\u0131n\u0131 g\u00f6steriyorsa, DTP bak\u0131r levhalar\u0131 de\u011ferlendirin. LED termal pedini do\u011frudan bak\u0131r tabana lehimleyerek, \u0131s\u0131 kayna\u011f\u0131n\u0131n alt\u0131ndaki dielektri\u011fi tamamen ortadan kald\u0131rm\u0131\u015f olursunuz. Bu, ultra y\u00fcksek g\u00fc\u00e7l\u00fc UV veya y\u00fcksek yo\u011funluklu COB LED\u2019ler i\u00e7in genellikle tek uygulanabilir \u00e7\u00f6z\u00fcmd\u00fcr.<\/p> <\/li><\/ol><\/div><p>Do\u011fru MCPCB alt tabakas\u0131n\u0131 se\u00e7mek, termal ve mekanik m\u00fchendislik konusunda sistematik bir yakla\u015f\u0131m gerektirir. Do\u011fru malzeme se\u00e7imini yapmak i\u00e7in bu yap\u0131land\u0131r\u0131lm\u0131\u015f metodolojiyi izleyin.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Frequently_Asked_Questions_FAQ\"><\/span>S\u0131k\u00e7a Sorulan Sorular (SSS)<span class=\"ez-toc-section-end\"><\/span><\/h2><div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1\"><strong class=\"schema-faq-question\">Y\u00fcksek g\u00fc\u00e7l\u00fc LED'ler i\u00e7in MCPCB yerine standart FR4 kullanabilir miyim?<\/strong> <p class=\"schema-faq-answer\">Standart FR4, son derece d\u00fc\u015f\u00fck bir \u0131s\u0131 iletkenli\u011fine sahiptir (tipik olarak 0,25 ila 0,3 W\/m\u00b7K). D\u00fc\u015f\u00fck g\u00fc\u00e7l\u00fc g\u00f6sterge LED\u2019leri i\u00e7in kullan\u0131labilse de veya orta g\u00fc\u00e7l\u00fc uygulamalar i\u00e7in yo\u011fun bir termal viya dizisiyle birle\u015ftirilse de, y\u00fcksek g\u00fc\u00e7l\u00fc LED dizileri i\u00e7in genellikle yetersiz kal\u0131r. FR4 \u0131s\u0131y\u0131 hapseder; bu da h\u0131zl\u0131 termal ka\u00e7aklara, renk kaymas\u0131na ve LED'lerin ciddi ar\u0131zalanmas\u0131na yol a\u00e7ar.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-2\"><strong class=\"schema-faq-question\">Do\u011frudan Termal Yolu (DTP) Bak\u0131r PCB tam olarak nedir?<\/strong> <p class=\"schema-faq-answer\">DTP Bak\u0131r PCB, LED\u2019in termal pedinin kaplad\u0131\u011f\u0131 alan\u0131n alt\u0131ndaki dielektrik tabakan\u0131n kald\u0131r\u0131ld\u0131\u011f\u0131 geli\u015fmi\u015f bir \u00fcretim tekni\u011fidir. LED, kat\u0131 bak\u0131r taban \u00fczerindeki bir kaideye do\u011frudan lehimlenir. Bu yap\u0131, dielektrik tabakan\u0131n termal direncini tamamen ortadan kald\u0131rarak \u0131s\u0131 transferini en \u00fcst d\u00fczeye \u00e7\u0131kar\u0131r ve son derece y\u00fcksek g\u00fc\u00e7 yo\u011funluklar\u0131na olanak tan\u0131r.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-3\"><strong class=\"schema-faq-question\">Metal taban\u0131n kal\u0131nl\u0131\u011f\u0131 (1,0 mm ile 2,0 mm) \u00f6nemli mi?<\/strong> <p class=\"schema-faq-answer\">Evet. Metal \u00e7ekirde\u011fin kal\u0131nl\u0131\u011f\u0131, yanal \u0131s\u0131 yayma kabiliyetini ve yap\u0131sal rijitli\u011fini etkiler. Daha kal\u0131n bir taban (\u00f6rne\u011fin 2,0 mm veya 3,2 mm), \u0131s\u0131y\u0131 harici so\u011futucuya aktarmadan \u00f6nce x-y d\u00fczlemi boyunca daha etkili bir \u015fekilde da\u011f\u0131t\u0131r ve bu da s\u0131cak noktalar\u0131n olu\u015fmas\u0131n\u0131 azalt\u0131r. Ancak, daha kal\u0131n tabanlar ayn\u0131 zamanda k\u00fctleyi, \u00fcretim s\u00fcresini ve malzeme maliyetlerini de art\u0131r\u0131r.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-4\"><strong class=\"schema-faq-question\">Dielektrik tabaka, bir MCPCB\u2019nin genel performans\u0131n\u0131 nas\u0131l etkiler?<\/strong> <p class=\"schema-faq-answer\">Dielektrik tabaka, birbiriyle do\u011fas\u0131 gere\u011fi \u00e7eli\u015fen iki \u00f6zellik olan y\u00fcksek elektriksel yal\u0131t\u0131m ve y\u00fcksek \u0131s\u0131 iletkenli\u011fini ayn\u0131 anda sa\u011flamas\u0131 gerekti\u011fi i\u00e7in hayati \u00f6neme sahiptir. Ana metal (al\u00fcminyum ya da bak\u0131r olsun) y\u00fcksek iletkenli\u011fe sahip oldu\u011fundan, dielektrik genellikle kart\u0131n t\u00fcm katman yap\u0131s\u0131 i\u00e7inde en y\u00fcksek \u0131s\u0131 direncini olu\u015fturur. Y\u00fcksek performansl\u0131 bir dielektrik (\u00f6rne\u011fin, 5-8 W\/m\u00b7K) se\u00e7mek, kart\u0131n ba\u015far\u0131s\u0131 a\u00e7\u0131s\u0131ndan genellikle al\u00fcminyum ve bak\u0131r aras\u0131nda se\u00e7im yapmaktan daha \u00f6nemlidir.<\/p> <\/div> <\/div>","protected":false},"excerpt":{"rendered":"<p>Introduction to Metal Core PCBs (MCPCBs) The rapid advancement of solid-state lighting has pushed the boundaries of light-emitting diode (LED) technology, leading to the development of incredibly dense, high-power LED arrays. As the wattage and luminous efficacy of these diodes increase, so does the amount of waste heat they generate. Traditional FR4 printed circuit boards, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":6697,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"Metal Core PCBs","_yoast_wpseo_title":"Metal Core PCBs (MCPCB): Aluminum vs. Copper Base for High-Power LEDs","_yoast_wpseo_metadesc":"Explore the critical differences between Aluminum and Copper Metal Core PCBs (MCPCBs) for high-power LED applications. Learn how to choose the right base material for optimal thermal management, performance, and cost-efficiency.","footnotes":""},"categories":[108],"tags":[657,661,658,659,518,656,660],"class_list":["post-6582","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-aluminum-mcpcb","tag-aluminum-vs-copper-pcb","tag-copper-mcpcb","tag-high-power-leds","tag-mcpcb","tag-metal-core-pcbs","tag-pcb-thermal-management"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Metal Core PCBs (MCPCB): Aluminum vs. Copper Base for High-Power LEDs<\/title>\n<meta name=\"description\" content=\"Explore the critical differences between Aluminum and Copper Metal Core PCBs (MCPCBs) for high-power LED applications. 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