{"id":5569,"date":"2026-01-30T06:11:06","date_gmt":"2026-01-30T06:11:06","guid":{"rendered":"https:\/\/pickandplacemachine.com\/?p=5569"},"modified":"2026-05-20T01:54:09","modified_gmt":"2026-05-20T01:54:09","slug":"solder-bridges-why-they-happen-and-how-to-prevent-them","status":"publish","type":"post","link":"https:\/\/pickandplacemachine.com\/tr\/solder-bridges-why-they-happen-and-how-to-prevent-them\/","title":{"rendered":"Lehim K\u00f6pr\u00fcleri: Neden Olurlar ve Nas\u0131l \u00d6nlenirler"},"content":{"rendered":"<p class=\"wp-block-paragraph\">\u00dc\u00e7 kelime:&nbsp;<strong>rastgele de\u011filler<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">SMT at\u00f6lyelerinde ayn\u0131 ba\u015fa \u00e7\u0131kma hikayesini g\u00f6rmeye devam ediyorum: \u201cBu bir yeniden ak\u0131\u015f sorunu.\u201d Bu hikaye iyi hissettiriyor \u00e7\u00fcnk\u00fc tek bir makineye ve tek bir m\u00fchendise i\u015faret ediyor. Ayn\u0131 zamanda yanl\u0131\u015ft\u0131r; \u00e7\u00fcnk\u00fc lehim k\u00f6pr\u00fcleri genellikle&nbsp;<em>Sistem<\/em>&nbsp;Yukar\u0131 y\u00f6nde ba\u015flayan ar\u0131za, daha sonra yerle\u015ftirme ve \u0131s\u0131 ile artar ve son olarak slaytta iyi g\u00f6r\u00fcnen denetim \u00f6l\u00e7\u00fcmleri ile yanl\u0131\u015f te\u015fhis edilir.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">O y\u00fczden yeti\u015fkinler gibi konu\u015fal\u0131m. Lehim k\u00f6pr\u00fcleri size verim, zaman ve m\u00fc\u015fteri g\u00fcvenine mal olur. Ve e\u011fer \u015fort g\u00f6nderirseniz, \u201crisk alm\u0131\u015f\u201d olmazs\u0131n\u0131z. Gelecekteki geri \u00e7a\u011f\u0131rma evraklar\u0131n\u0131 yaz\u0131yorsunuz.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"the-hard-truth-about-solder-bridges-and-why-managers-hate-this-section-\">Lehim k\u00f6pr\u00fcleri hakk\u0131ndaki ac\u0131 ger\u00e7ek (ve y\u00f6neticilerin bu b\u00f6l\u00fcmden neden nefret etti\u011fi)<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Lehim k\u00f6pr\u00fcleri, inkar\u0131 cezaland\u0131ran bir kusur s\u0131n\u0131f\u0131d\u0131r. B\u00fct\u00fcn g\u00fcn k\u00f6pr\u00fcleri yeniden i\u015fleyebilir, sevkiyat tarihlerine uyabilir ve yine de kaybedebilirsiniz - \u00e7\u00fcnk\u00fc yeniden i\u015fleme, y\u00fckselene kadar s\u00fcre\u00e7 sapmas\u0131n\u0131 gizler ve ard\u0131ndan yanma, saha iadeleri veya m\u00fc\u015fteri gelen QC'de k\u00f6t\u00fc bir s\u00fcrprizle kar\u015f\u0131la\u015f\u0131rs\u0131n\u0131z.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Fabrikadan \u00e7\u0131kt\u0131klar\u0131nda \u201ck\u0131sa devre\u201d sorunlar\u0131n\u0131n nas\u0131l ortaya \u00e7\u0131kt\u0131\u011f\u0131na bak\u0131n. A\u011fustos 2024'te BMW&nbsp;<strong>720,796<\/strong>&nbsp;ABD'deki ara\u00e7lar su pompas\u0131 konnekt\u00f6r\u00fc s\u0131zd\u0131rmazl\u0131\u011f\u0131 ile ba\u011flant\u0131l\u0131 bir k\u0131sa devre endi\u015fesi nedeniyle trafikten men edildi ve d\u00fczenleyici dili a\u00e7\u0131k: su + elektrik + tasar\u0131m \/ s\u00fcre\u00e7 bo\u015fluklar\u0131 = k\u0131sa devre riski. Farkl\u0131 alt sistem, ayn\u0131 ar\u0131za temas\u0131: k\u00fc\u00e7\u00fck s\u0131zd\u0131rmazl\u0131k\/i\u015flem hatalar\u0131, b\u00fcy\u00fck bir a\u015fa\u011f\u0131 ak\u0131\u015f maliyetine d\u00f6n\u00fc\u015f\u00fcr. (<a href=\"https:\/\/www.reuters.com\/business\/autos-transportation\/bwm-recalls-720796-cars-over-water-pump-issue-us-regulator-says-2024-08-20\/\" target=\"_blank\" rel=\"noopener\">Reuters<\/a>)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u0131bbi cihazlar daha da az ba\u011f\u0131\u015flay\u0131c\u0131d\u0131r. FDA'n\u0131n 2023 geri \u00e7a\u011f\u0131rma listesi a\u015fa\u011f\u0131dakilere ba\u011fl\u0131 ventilat\u00f6r eylemlerini i\u00e7ermektedir&nbsp;<strong>g\u00fc\u00e7 y\u00f6neti\u0307mi\u0307 baskili devre karti d\u00fczenekleri\u0307<\/strong>&nbsp;ve ayr\u0131 bir ventilat\u00f6rden bahsediyor&nbsp;<strong>k\u0131sa devreler<\/strong>-D\u00fczenleyiciler ve hastaneler i\u015fin i\u00e7ine girdi\u011finde \u201celektronik kusurlar\u201d i\u015fte b\u00f6yle g\u00f6r\u00fcn\u00fcr. (<a href=\"https:\/\/www.fda.gov\/medical-devices\/medical-device-recalls-and-early-alerts\/2023-medical-device-recalls\" target=\"_blank\" rel=\"noopener\">ABD G\u0131da ve \u0130la\u00e7 \u0130daresi<\/a>)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Y\u00fcksek g\u00fcvenilirli\u011fe sahip donan\u0131mlar \u00fcretiyorsan\u0131z, bu havay\u0131 zaten biliyorsunuzdur. NASA'n\u0131n BGA'larla ilgili NEPP k\u0131lavuzu, lehim ala\u015f\u0131m\u0131 se\u00e7imlerine ve termo-mekanik stres alt\u0131nda g\u00fcvenilirli\u011fe ger\u00e7ek zaman harc\u0131yor - \u00e7\u00fcnk\u00fc bir kez ince aral\u0131kta oldu\u011funuzda, \u201ckanatlanamazs\u0131n\u0131z\u201d. (<a href=\"https:\/\/nepp.nasa.gov\/workshops\/etw2023\/talks\/13-JUN-TUE\/1405_Ghaffarian_BGA_CL23-2931.pdf?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noopener\">nepp.nasa.gov<\/a>)<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/pickandplacemachine.com\/wp-admin\/post.php?post=1142&amp;action=edit\"><img decoding=\"async\" width=\"960\" height=\"640\" src=\"https:\/\/pickandplacemachine.com\/wp-content\/uploads\/2026\/01\/SMD-Taping-Machines1-1.jpg\" alt=\"SMD Bantlama Makineleri\" class=\"wp-image-5570\" srcset=\"https:\/\/pickandplacemachine.com\/wp-content\/uploads\/2026\/01\/SMD-Taping-Machines1-1.jpg 960w, https:\/\/pickandplacemachine.com\/wp-content\/uploads\/2026\/01\/SMD-Taping-Machines1-1-300x200.jpg 300w, https:\/\/pickandplacemachine.com\/wp-content\/uploads\/2026\/01\/SMD-Taping-Machines1-1-768x512.jpg 768w, https:\/\/pickandplacemachine.com\/wp-content\/uploads\/2026\/01\/SMD-Taping-Machines1-1-18x12.jpg 18w\" sizes=\"(max-width: 960px) 100vw, 960px\" \/><\/a><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"what-solder-bridges-actually-are-and-why-aoi-green-can-still-be-bad-\">Lehim k\u00f6pr\u00fcleri asl\u0131nda nedir (ve \u201cAOI ye\u015fili\u201d neden hala k\u00f6t\u00fc olabilir)<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Bir lehim k\u00f6pr\u00fcs\u00fc hatas\u0131&nbsp;<strong>\u0130zole kalmas\u0131 gereken iki elektrik d\u00fc\u011f\u00fcm\u00fcn\u00fc birbirine ba\u011flayan istenmeyen iletken lehim<\/strong>, genellikle biti\u015fik pedler, u\u00e7lar veya sonland\u0131rmalar aras\u0131nda, \u0131s\u0131, titre\u015fim, ak\u0131 kal\u0131nt\u0131s\u0131 veya nem alt\u0131nda hemen veya daha sonra ar\u0131zalanabilecek bir k\u0131sa devre veya s\u0131z\u0131nt\u0131 yolu olu\u015fturur.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u015eimdi i\u015fin garip k\u0131sm\u0131: Riskiniz \u201ck\u0131rm\u0131z\u0131\u201d iken AOI \u201cye\u015fil\u201d olabilir. Neden mi? \u00c7\u00fcnk\u00fc k\u00f6pr\u00fcler k\u0131l kadar ince olabilir, bile\u015fen g\u00f6vdeleri taraf\u0131ndan k\u0131smen maskelenebilir veya y\u00fck alt\u0131nda kesintili-iletken olabilir, kamera alt\u0131nda belirgin olmayabilir. AOI'yi akl\u0131 ba\u015f\u0131nda SPI kurallar\u0131 ile e\u015fle\u015ftirmezseniz (ve bunlar\u0131 ger\u00e7ekten uygularsan\u0131z), temelde umut ediyorsunuz demektir.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"why-do-solder-bridges-happen-follow-the-defect-upstream\">Lehim k\u00f6pr\u00fcleri neden olu\u015fur? Hatay\u0131 yukar\u0131 do\u011fru takip edin<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0130\u015fte benim \u00f6nyarg\u0131m ve bunu savunaca\u011f\u0131m:&nbsp;<strong>\u00e7o\u011fu lehim k\u00f6pr\u00fcs\u00fc bask\u0131 ile olu\u015fturulmu\u015ftur<\/strong>, daha sonra yerle\u015ftirme ve yeniden ak\u0131tma ile \u201ctamamlan\u0131r\u201d. Daha az k\u00f6pr\u00fc istiyorsan\u0131z, bask\u0131y\u0131 bir \u0131s\u0131nma hareketi olarak g\u00f6rmeyi b\u0131rak\u0131n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ve evet, sessiz k\u0131sm\u0131 y\u00fcksek sesle s\u00f6yleyece\u011fim: bask\u0131 transfer verimlili\u011fini ve macun hacmi de\u011fi\u015fimini kontrol etmezseniz, k\u00f6pr\u00fclemeyi kontrol edemezsiniz. Bahaneleri kontrol edersiniz.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"1-stencil-printing-where-bridges-are-born\">1) \u015eablon bask\u0131: k\u00f6pr\u00fclerin do\u011fdu\u011fu yer<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Bask\u0131da yayg\u0131n lehim k\u00f6pr\u00fcleme nedenleri:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u00c7ok fazla macun hacmi<\/strong>&nbsp;ince aral\u0131kta (0,4 mm QFP, 0,5 mm QFN, 01005 pasifler).<\/li>\n\n\n\n<li><strong>Ger\u00e7ekli\u011fi g\u00f6z ard\u0131 eden diyafram tasar\u0131m\u0131<\/strong>: azaltma yok, yanl\u0131\u015f \u015fekiller, QFN'lerde \u201cev plakas\u0131\u201d yok, bo\u015fluk stratejisi yok.<\/li>\n\n\n\n<li><strong>Macun reolojisi uyu\u015fmazl\u0131\u011f\u0131<\/strong>: Tip-5\/6 \u00e7\u00f6kmeyi azaltacakken ultra ince zift \u00fczerinde Tip-4 macun (sihirli de\u011fil - sadece par\u00e7ac\u0131k boyutu davran\u0131\u015f\u0131).<\/li>\n\n\n\n<li><strong>Ayr\u0131lma h\u0131z\u0131 \/ yanl\u0131\u015f ayr\u0131lma<\/strong>: daha sonra pedleri birbirine ba\u011flayan ipleri, lekeleri ve \u201ck\u00f6pek kulaklar\u0131n\u0131\u201d yap\u0131\u015ft\u0131r\u0131n.<\/li>\n\n\n\n<li><strong>\u015eablon alt\u0131 temizleme kadans\u0131 fantezisi<\/strong>: Macununuz kuruyorsa ve ortam\u0131n\u0131z sallan\u0131yorsa \u201cHer 10 bask\u0131da bir temizliyoruz\u201d ifadesi anlams\u0131zd\u0131r.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">DEK NeoHorizon \/ GKG s\u0131n\u0131f\u0131 bir yaz\u0131c\u0131 kullan\u0131yorsan\u0131z ve hala k\u00f6pr\u00fcleme yap\u0131yorsan\u0131z, markay\u0131 su\u00e7lamay\u0131n. Ayarlar\u0131, \u015fablonu ve disiplini su\u00e7lay\u0131n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pratik bir \u00e7er\u00e7eve istiyorsan\u0131z, kendi \u00e7er\u00e7evenizle ba\u015flay\u0131n&nbsp;<strong>s\u00fcre\u00e7 kalite kontrolleri ve kusur \u00f6nleme kurallar\u0131<\/strong>&nbsp;ve bunlar\u0131 \u00f6nemliymi\u015f gibi yaz\u0131n (\u00e7\u00fcnk\u00fc \u00f6nemlidirler). Pek \u00e7ok ekip bunu asla resmile\u015ftirmez ve sonra k\u00f6pr\u00fclerin neden geri gelmeye devam etti\u011fini merak ederler. Bu tam da ger\u00e7ek bir \u015firkete ait olan t\u00fcrden bir \u00e7al\u0131\u015fmad\u0131r.&nbsp;<strong>s\u00fcre\u00e7 &amp; kali\u0307te i\u0307\u015f aki\u015fi<\/strong>&nbsp;sitenizin alt\u0131nda \u00f6zetlenen gibi&nbsp;<a href=\"https:\/\/pickandplacemachine.com\/process-quality\/\">SMT s\u00fcre\u00e7 kalite kaynaklar\u0131<\/a>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"2-placement-the-quiet-amplifier-\">2) Yerle\u015ftirme: \u201csessiz amplifikat\u00f6r\u201d<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Yerle\u015ftirme genellikle yoktan k\u00f6pr\u00fcler yaratmaz. Marjinal bask\u0131lar\u0131 \u015fortlara d\u00f6n\u00fc\u015ft\u00fcr\u00fcr.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Yerle\u015ftirme kuvveti \u00e7ok y\u00fcksek<\/strong>: macun s\u0131k\u0131\u015f\u0131r, boncuklan\u0131r ve bo\u015flu\u011fa s\u00fcr\u00fcn\u00fcr.<\/li>\n\n\n\n<li><strong>Bile\u015fen kaymas\u0131 \/ \u00e7arp\u0131kl\u0131\u011f\u0131<\/strong>: tombstoning'in kuzeni-pedler d\u00fczensiz macun temas\u0131 al\u0131r, lehim g\u00f6\u00e7er.<\/li>\n\n\n\n<li><strong>Yanl\u0131\u015f nozul veya a\u015f\u0131nm\u0131\u015f u\u00e7lar<\/strong>: Yerle\u015ftirme tekrarlanabilirli\u011findeki mikro kaymalar, dar hatvede k\u00f6pr\u00fcler olarak ortaya \u00e7\u0131kar.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0130\u015fte bu y\u00fczden \u201cyeniden ak\u0131\u015f\u201d hikayesi rahatlat\u0131c\u0131d\u0131r. Karma\u015f\u0131k ger\u00e7eklerden ka\u00e7\u0131n\u0131yor: bask\u0131 + yer, k\u00f6pr\u00fc riskinin \u00e7o\u011funun pi\u015fti\u011fi yerdir.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"3-reflow-where-physics-collects-the-bill\">3) Yeniden ak\u0131\u015f: fizi\u011fin faturay\u0131 tahsil etti\u011fi yer<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Reflow profil lehim k\u00f6pr\u00fclemesi genellikle \u015fundan kaynaklan\u0131r:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Rampa \u00e7ok agresif<\/strong>: ak\u0131 aktivasyon zamanlamas\u0131 gariple\u015fir; \u00e7\u00f6z\u00fcc\u00fcler temiz bir \u015fekilde gaz \u00e7\u0131karmadan \u00f6nce macun \u00e7\u00f6ker.<\/li>\n\n\n\n<li><strong>Yanl\u0131\u015f y\u00f6netilen \u0131slatma<\/strong>: \u00f6zellikle SAC305 ve di\u011fer ala\u015f\u0131mlarda \u0131slatma dinamiklerini de\u011fi\u015ftirirsiniz ve birle\u015fme s\u0131ras\u0131nda k\u00f6pr\u00fcler olu\u015fabilir.<\/li>\n\n\n\n<li><strong>Tepe\/ TAL uyu\u015fmazl\u0131\u011f\u0131<\/strong>: yetersiz \u0131slatma, stres alt\u0131nda iletken hale gelen k\u0131smi k\u00f6pr\u00fcler b\u0131rakabilir.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Titre\u015fimlerle yeniden ak\u0131\u015f \u201cayar\u0131\u201d yapmay\u0131n. Bir profilleyici kullan\u0131n. G\u00fcnl\u00fc\u011fe kaydedin. SPI hacmi ve AOI \u00e7a\u011fr\u0131lar\u0131 ile ili\u015fkilendirin. E\u011fer bu d\u00f6ng\u00fcye sahip de\u011filseniz, \u0131s\u0131y\u0131 1999 y\u0131l\u0131ndaki gibi ayarl\u0131yorsunuz demektir.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Hat y\u00fckseltmeleri yapmay\u0131 veya profil olu\u015fturma\/inceleme \u00f6zelli\u011fi eklemeyi planl\u0131yorsan\u0131z&nbsp;<a href=\"https:\/\/pickandplacemachine.com\/solution\/turnkey-smt-line-solutions\/\">Anahtar teslim SMT hatt\u0131 \u00e7\u00f6z\u00fcmleri<\/a>&nbsp;Entegrasyon ve \u00f6l\u00e7\u00fcm disiplini, kahramanca sorun gidermeyi her seferinde yener.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"4-pcb-footprint-the-trap-nobody-wants-to-pay-for\">4) PCB + ayak izi: kimsenin bedelini \u00f6demek istemedi\u011fi tuzak<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">K\u00f6pr\u00fcleme riski \u015fu durumlarda h\u0131zla artar:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Pedler aras\u0131 bo\u015fluk dar<\/strong>&nbsp;ve lehim maskesi barajlar\u0131 ince veya tutars\u0131zd\u0131r.<\/li>\n\n\n\n<li><strong>NSMD\/SMD se\u00e7imleri montaj ger\u00e7ekli\u011fiyle uyu\u015fmuyor<\/strong>.<\/li>\n\n\n\n<li><strong>Bak\u0131r dengesi ve termal davran\u0131\u015f<\/strong>&nbsp;e\u015fit olmayan \u0131slanma yarat\u0131r.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Tasar\u0131m ekibiniz \u201c\u00fcretim halleder\u201d diyorsa, fizi\u011fi yeniden i\u015fleme tezgah\u0131n\u0131za ta\u015feron olarak veriyorlar demektir.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/pickandplacemachine.com\/wp-admin\/post.php?post=1255&amp;action=edit\"><img decoding=\"async\" width=\"960\" height=\"640\" src=\"https:\/\/pickandplacemachine.com\/wp-content\/uploads\/2026\/01\/SMD-Taping-Machines2-1.jpg\" alt=\"SMD Bantlama Makineleri\" class=\"wp-image-5571\" srcset=\"https:\/\/pickandplacemachine.com\/wp-content\/uploads\/2026\/01\/SMD-Taping-Machines2-1.jpg 960w, https:\/\/pickandplacemachine.com\/wp-content\/uploads\/2026\/01\/SMD-Taping-Machines2-1-300x200.jpg 300w, https:\/\/pickandplacemachine.com\/wp-content\/uploads\/2026\/01\/SMD-Taping-Machines2-1-768x512.jpg 768w, https:\/\/pickandplacemachine.com\/wp-content\/uploads\/2026\/01\/SMD-Taping-Machines2-1-18x12.jpg 18w\" sizes=\"(max-width: 960px) 100vw, 960px\" \/><\/a><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"prevention-that-survives-production-not-just-a-lab-demo-\">\u00dcretimde hayatta kalan \u00f6nleme (sadece bir laboratuvar demosu de\u011fil)<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">K\u0131sa bir c\u00fcmle.&nbsp;<strong>Kontrol macunu.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Daha uzun bir c\u00fcmle (ve evet, bu s\u0131k\u0131c\u0131 ger\u00e7ek): SPI ile lehim pastas\u0131 hacim da\u011f\u0131l\u0131m\u0131n\u0131 kontrol etti\u011finizde, \u015fablon a\u00e7\u0131kl\u0131klar\u0131n\u0131 ala\u015f\u0131m\u0131n\u0131z\u0131n ger\u00e7ek \u0131slatma penceresine (kur\u015funsuzda genellikle SAC305) hizalad\u0131\u011f\u0131n\u0131zda ve yerle\u015ftirme tekrarlanabilirli\u011fini ped bo\u015fluklar\u0131na macun s\u0131kmayacak kadar s\u0131k\u0131 tuttu\u011funuzda, k\u00f6pr\u00fcleme h\u0131zl\u0131 bir \u015fekilde d\u00fc\u015fer - genellikle dramatik yeniden ak\u0131\u015f kahramanl\u0131klar\u0131 olmadan.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pazartesi sabah\u0131 ne yap\u0131yorsun?<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u00d6nemli olan SPI kurallar\u0131<\/strong>: sadece \u201cses seviyesi \u00b130%\u201d olarak ayarlamay\u0131n. Kullan\u0131n&nbsp;<em>pede \u00f6zel<\/em>&nbsp;ince aral\u0131kta e\u015fikler.<\/li>\n\n\n\n<li><strong>\u015eablon a\u00e7\u0131kl\u0131k stratejisi<\/strong>: ince hatvede azaltmalar; QFN'lerde ev plakas\u0131; yo\u011funluk gerektirdi\u011finde ad\u0131m \u015fablonlar\u0131n\u0131 d\u00fc\u015f\u00fcn\u00fcn.<\/li>\n\n\n\n<li><strong>Bask\u0131 s\u00fcreci disiplini<\/strong>: ay\u0131rma h\u0131z\u0131, silme s\u0131kl\u0131\u011f\u0131, ortam kontrol\u00fc (nem dalgalanmalar\u0131 macun davran\u0131\u015f\u0131n\u0131 bozacakt\u0131r).<\/li>\n\n\n\n<li><strong>Yerle\u015ftirme kontrolleri<\/strong>Z-y\u00fcksekli\u011fini, kuvveti, noz\u00fcl durumunu ve referans stratejisini do\u011frulay\u0131n.<\/li>\n\n\n\n<li><strong>Niyetli profil<\/strong>: rampa\/\u0131slatma\/tepe noktas\u0131n\u0131 stabilize edin, ard\u0131ndan kilitleyin ve sapmay\u0131 izleyin.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">E\u011fer in\u015fa ediyorsan\u0131z&nbsp;<a href=\"https:\/\/pickandplacemachine.com\/solution\/prototype-small-batch-lines\/\">prototip ve k\u00fc\u00e7\u00fck parti SMT hatlar\u0131<\/a>, Bir s\u00fcreli\u011fine kabile bilgisiyle idare edebilirsiniz. E\u011fer ko\u015fuyorsan\u0131z&nbsp;<a href=\"https:\/\/pickandplacemachine.com\/solution\/high-speed-mass-production-lines\/\">y\u00fcksek h\u0131zl\u0131 seri \u00fcretim hatlar\u0131<\/a>, kabile bilgisi hurdaya d\u00f6n\u00fc\u015f\u00fcr.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"quick-diagnostic-table-print-to-reflow-no-wishful-thinking-\">H\u0131zl\u0131 tan\u0131 tablosu (bask\u0131dan yeniden ak\u0131\u015fa, h\u00fcsn\u00fckuruntu yok)<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>K\u00f6pr\u00fcy\u00fc g\u00f6rd\u00fc\u011f\u00fcn\u00fcz yerde<\/th><th>Genellikle ne anlama gelir<\/th><th>H\u0131zl\u0131 onay sinyali<\/th><th>\u00d6nleme hamlesi (en iyi yat\u0131r\u0131m getirisi)<\/th><th>Lehim k\u00f6pr\u00fcleri nas\u0131l d\u00fczeltilir (h\u0131zl\u0131, g\u00fcvenli)<\/th><\/tr><\/thead><tbody><tr><td>K\u00f6pr\u00fcler bir\u00e7ok pano boyunca ayn\u0131 pedlerde tekrarlan\u0131r<\/td><td>\u015eablon\/apert\u00fcr veya yap\u0131\u015ft\u0131rma hacmi sorunu<\/td><td>SPI ayn\u0131 pedlerde tutarl\u0131 a\u015f\u0131r\u0131 hacim g\u00f6steriyor<\/td><td>Diyafram a\u00e7\u0131kl\u0131\u011f\u0131 azaltma + bu modelde daha s\u0131k\u0131 SPI e\u015fikleri<\/td><td>Yeniden i\u015fleme + pedleri maske hasar\u0131 a\u00e7\u0131s\u0131ndan inceleyin; bir sonraki \u00e7al\u0131\u015ft\u0131rmadan \u00f6nce temel nedeni d\u00fczeltin<\/td><\/tr><tr><td>Rastgele k\u00f6pr\u00fcler, vardiyan\u0131n ilerleyen saatlerinde daha k\u00f6t\u00fc<\/td><td>Macun kurumas\u0131, kirlenme, zay\u0131f temizlik temposu<\/td><td>Macun birikintileri \u201cp\u00fcr\u00fczl\u00fc\u201d hale gelir; \u015fablonun alt taraf\u0131 lekelenir<\/td><td>Silme aral\u0131\u011f\u0131n\u0131 k\u0131salt\u0131n; nemi kontrol edin; macun kullan\u0131m\u0131n\u0131 yenileyin<\/td><td>Rework + flux kal\u0131nt\u0131s\u0131n\u0131 temizleyin; macun a\u00e7\u0131k kalma s\u00fcresini g\u00f6zden ge\u00e7irin<\/td><\/tr><tr><td>QFN kenarlar\u0131na yak\u0131n k\u00f6pr\u00fcler<\/td><td>S\u0131k\u0131\u015ft\u0131rarak yap\u0131\u015ft\u0131rma + ayak izi\/yap\u0131\u015ft\u0131rma tasar\u0131m uyu\u015fmazl\u0131\u011f\u0131<\/td><td>SPI kenar a\u015f\u0131r\u0131 hacmini g\u00f6sterir; AOI kenar anomalilerini i\u015faretler<\/td><td>Ana plaka a\u00e7\u0131kl\u0131klar\u0131; yerle\u015ftirme kuvvetini\/Z'yi do\u011frulay\u0131n<\/td><td>Fitil + kontroll\u00fc s\u0131cak hava; pedin kalkmas\u0131n\u0131 \u00f6nler<\/td><\/tr><tr><td>Yaln\u0131zca profil de\u011fi\u015fikli\u011finden sonra k\u00f6pr\u00fcler<\/td><td>Yeniden ak\u0131\u015f birle\u015fme davran\u0131\u015f\u0131 de\u011fi\u015fti<\/td><td>Ayn\u0131 SPI hacimleri, ancak yeni tarifle k\u00f6pr\u00fc oran\u0131 y\u00fckseliyor<\/td><td>Rampay\u0131\/\u0131slatmay\u0131 tersine \u00e7evirin; sabit TAL ile yeniden profil olu\u015fturun<\/td><td>Yeniden \u00e7al\u0131\u015f\u0131n, ard\u0131ndan profili kilitleyin ve izleyin<\/td><\/tr><tr><td>Panonun bir taraf\u0131ndaki k\u00f6pr\u00fcler<\/td><td>\u00c7arp\u0131kl\u0131k, e\u015fit olmayan \u0131s\u0131tma, konvey\u00f6r\/destek sorunu<\/td><td>Profilleme, her yerde delta-T oldu\u011funu g\u00f6steriyor<\/td><td>Deste\u011fi iyile\u015ftirin; f\u0131r\u0131n b\u00f6lgelendirmesini ayarlay\u0131n; ta\u015f\u0131y\u0131c\u0131lar\u0131 kontrol edin<\/td><td>Yeniden i\u015fleme; tekrarlamadan \u00f6nce mekanik deste\u011fi d\u00fczeltin<\/td><\/tr><tr><td>Sadece dar aral\u0131kl\u0131 kablolarda k\u00f6pr\u00fcler<\/td><td>Yanl\u0131\u015f hizalama + fazla macun<\/td><td>AOI kur\u015fun ofsetini g\u00f6sterir; yerle\u015ftirme g\u00fcnl\u00fckleri sapmay\u0131 g\u00f6sterir<\/td><td>Yerle\u015ftirme tolerans\u0131n\u0131 s\u0131k\u0131la\u015ft\u0131r\u0131n; nozulu ve g\u00f6r\u00fc\u015f\u00fc do\u011frulay\u0131n<\/td><td>Lehimi\/ fitili dikkatlice s\u00fcr\u00fckleyin; ard\u0131ndan hizalama kontrol\u00fcn\u00fc do\u011frulay\u0131n<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"faqs-aeo-style-\">SSS (AEO tarz\u0131)<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"what-are-solder-bridges-\">Lehim k\u00f6pr\u00fcleri nedir?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Bir lehim k\u00f6pr\u00fcs\u00fc&nbsp;<strong>iki ayr\u0131 elektrik noktas\u0131n\u0131 birbirine ba\u011flayan istenmeyen lehim<\/strong>, genellikle biti\u015fik pedler veya u\u00e7lar, \u0131s\u0131, titre\u015fim veya kirlenme alt\u0131nda hemen veya aral\u0131kl\u0131 olarak ar\u0131zalanabilen bir k\u0131sa devre veya s\u0131z\u0131nt\u0131 yolu olu\u015fturur; macun hacminin ve hizalama pencerelerinin k\u00fc\u00e7\u00fck oldu\u011fu ince aral\u0131kl\u0131 SMT'de en yayg\u0131n olan\u0131d\u0131r.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"why-do-solder-bridges-happen-in-smt-\">SMT'de lehim k\u00f6pr\u00fcleri neden olu\u015fur?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Lehim k\u00f6pr\u00fcleri \u015fu durumlarda meydana gelir&nbsp;<strong>lehim pastas\u0131 hacmi, ped geometrisi, yerle\u015ftirme kuvveti\/hizalama ve yeniden ak\u0131\u015f \u0131slatma dinamikleri bir araya gelerek erimi\u015f lehimin kom\u015fu d\u00fc\u011f\u00fcmleri birbirine ba\u011flamas\u0131n\u0131 sa\u011flar<\/strong>, \u00d6zellikle ince hatveli (0,4-0,5 mm), QFN'ler ve 01005 par\u00e7alarda bask\u0131 ve yerle\u015ftirmedeki k\u00fc\u00e7\u00fck farkl\u0131l\u0131klar b\u00fcy\u00fck elektrik sorunlar\u0131na d\u00f6n\u00fc\u015f\u00fcr.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"how-to-prevent-solder-bridges-in-production-\">\u00dcretimde lehim k\u00f6pr\u00fcleri nas\u0131l \u00f6nlenir?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Lehim k\u00f6pr\u00fclerinin \u00f6nlenmesi \u015fu anlama gelir&nbsp;<strong>macun birikimini ve hizalamay\u0131 kontrol ederek biti\u015fik pedlerin yeniden ak\u0131\u015f s\u0131ras\u0131nda asla birle\u015fmeye yetecek kadar lehim almamas\u0131n\u0131 sa\u011flama<\/strong>, \u015fablon a\u00e7\u0131kl\u0131\u011f\u0131 azaltmalar\u0131, ince aral\u0131k ger\u00e7ekli\u011fini yans\u0131tan SPI e\u015fikleri, sabit yerle\u015ftirme Z \/ kuvveti ve a\u015f\u0131r\u0131 \u00e7\u00f6kme ve kontrols\u00fcz birle\u015fmeyi \u00f6nleyen bir yeniden ak\u0131\u015f profili kullanarak.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"how-to-fix-solder-bridges-without-damaging-pads-\">Pedlere zarar vermeden lehim k\u00f6pr\u00fcleri nas\u0131l d\u00fczeltilir?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Lehim k\u00f6pr\u00fclerini g\u00fcvenli bir \u015fekilde sabitlemek \u015fu anlama gelir&nbsp;<strong>ped bak\u0131r\u0131n\u0131, lehim maskesini ve bile\u015fen sonland\u0131rmalar\u0131n\u0131 koruyarak iletken lehim ba\u011flant\u0131s\u0131n\u0131n \u00e7\u0131kar\u0131lmas\u0131<\/strong>, Tipik olarak flux + lehim fitili veya kontroll\u00fc s\u0131cak hava ile yeniden i\u015fleme, ard\u0131ndan ped kald\u0131rma, maske hasar\u0131 ve daha sonra s\u0131z\u0131nt\u0131y\u0131 yeniden olu\u015fturabilecek kal\u0131nt\u0131lar i\u00e7in inceleme.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"can-the-reflow-profile-cause-solder-bridging-\">Yeniden ak\u0131\u015f profili lehim k\u00f6pr\u00fclenmesine neden olabilir mi?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Bir yeniden ak\u0131\u015f profili a\u015fa\u011f\u0131daki durumlarda lehim k\u00f6pr\u00fclenmesine neden olabilir&nbsp;<strong>ramp\/soak\/peak ayarlar\u0131 flux aktivasyon zamanlamas\u0131n\u0131 ve lehim \u0131slatma davran\u0131\u015f\u0131n\u0131 de\u011fi\u015ftirir<\/strong>, macunun \u00e7\u00f6kmesine veya lehimin bo\u015fluklar boyunca birle\u015fmesine neden olur; ancak yeniden ak\u0131\u015f genellikle fazla macun, zay\u0131f sal\u0131m veya yukar\u0131 y\u00f6nde yanl\u0131\u015f hizalama ile ba\u015flayan bir sorunu \u201cbitirir\u201d.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"what-s-the-fastest-way-to-isolate-the-root-cause-printing-placement-or-reflow-\">Temel nedeni izole etmenin en h\u0131zl\u0131 yolu nedir: bask\u0131, yerle\u015ftirme veya yeniden ak\u0131\u015f?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">En h\u0131zl\u0131 izolasyon y\u00f6ntemi&nbsp;<strong>SPI macun hacmi haritalar\u0131n\u0131n AOI k\u00f6pr\u00fc konumlar\u0131 ve kullan\u0131lan tam yeniden ak\u0131\u015f re\u00e7etesi ile ili\u015fkilendirilmesi<\/strong>, \u00c7\u00fcnk\u00fc tutarl\u0131 a\u015f\u0131r\u0131 hacim bask\u0131ya, tutarl\u0131 pozisyonel sapma yerle\u015ftirmeye ve re\u00e7ete de\u011fi\u015fimlerinden sonra ani h\u0131z de\u011fi\u015fiklikleri yeniden ak\u0131\u015fa i\u015faret eder - ard\u0131ndan kontroll\u00fc bir A\/B \u00e7al\u0131\u015fmas\u0131yla onaylay\u0131n.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/pickandplacemachine.com\/wp-admin\/post.php?post=925&amp;action=edit\"><img decoding=\"async\" width=\"960\" height=\"640\" src=\"https:\/\/pickandplacemachine.com\/wp-content\/uploads\/2026\/01\/SMD-Taping-Machines3-1.jpg\" alt=\"SMD Bantlama Makineleri\" class=\"wp-image-5572\" srcset=\"https:\/\/pickandplacemachine.com\/wp-content\/uploads\/2026\/01\/SMD-Taping-Machines3-1.jpg 960w, https:\/\/pickandplacemachine.com\/wp-content\/uploads\/2026\/01\/SMD-Taping-Machines3-1-300x200.jpg 300w, https:\/\/pickandplacemachine.com\/wp-content\/uploads\/2026\/01\/SMD-Taping-Machines3-1-768x512.jpg 768w, https:\/\/pickandplacemachine.com\/wp-content\/uploads\/2026\/01\/SMD-Taping-Machines3-1-18x12.jpg 18w\" sizes=\"(max-width: 960px) 100vw, 960px\" \/><\/a><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"conclusion\">Sonu\u00e7<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Lehim k\u00f6pr\u00fclerini kesme konusunda ciddiyseniz (sadece yeniden i\u015fleme de\u011fil), d\u00f6ng\u00fcy\u00fc s\u0131k\u0131la\u015ft\u0131r\u0131n: \u015fablon tasar\u0131m\u0131 \u2192 SPI kurallar\u0131 \u2192 yerle\u015ftirme kontrol\u00fc \u2192 kilitli profiller \u2192 insanlar\u0131n ger\u00e7ekten takip etti\u011fi denetim geri bildirimi.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0130ster prototipleri \u00f6l\u00e7eklendiriyor ister tam hacim \u00e7al\u0131\u015ft\u0131r\u0131yor olun, hatt\u0131n\u0131zda bu d\u00f6ng\u00fcy\u00fc olu\u015fturmak i\u00e7in yard\u0131m istiyorsan\u0131z&nbsp;<a href=\"https:\/\/pickandplacemachine.com\/solution\/training-after-sales-support\/\">e\u011fitim ve sat\u0131\u015f sonras\u0131 destek<\/a>&nbsp;B\u00f6ylece operat\u00f6rleriniz ve m\u00fchendisleriniz ayn\u0131 sorunu ayn\u0131 \u015fekilde \u00e7\u00f6z\u00fcyor. Fabrikan\u0131z i\u00e7in somut bir plan istiyorsan\u0131z&nbsp;<a href=\"https:\/\/pickandplacemachine.com\/contact\/\">ileti\u015fim sayfas\u0131<\/a>&nbsp;ve bize paket kar\u0131\u015f\u0131m\u0131n\u0131z\u0131 (QFN\/QFP\/BGA), hatvenizi, macun tipinizi (Tip-4\/5\/6) ve mevcut k\u00f6pr\u00fc DPMO'nuzu s\u00f6yleyin.<\/p>","protected":false},"excerpt":{"rendered":"<p>Lehim k\u00f6pr\u00fcleri \u201cgizemli yeniden ak\u0131\u015f hayaletleri\u201d de\u011fildir. Bunlar \u00f6ng\u00f6r\u00fclebilir proses matemati\u011fi (macun hacmi, ped geometrisi ve \u0131s\u0131) ve hat \u00fczerindeki birka\u00e7 rahats\u0131z edici al\u0131\u015fkanl\u0131kt\u0131r.<\/p>","protected":false},"author":1,"featured_media":5570,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_gspb_post_css":"","footnotes":""},"categories":[837],"tags":[984,985,983,980,981,982],"class_list":["post-5569","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-process-quality","tag-aoi-spi-inspection","tag-pcb-assembly-troubleshooting","tag-reflow-profile-solder-bridging","tag-smt-solder-bridging","tag-solder-bridges","tag-solder-paste-printing-defects"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/pickandplacemachine.com\/tr\/wp-json\/wp\/v2\/posts\/5569","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pickandplacemachine.com\/tr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/pickandplacemachine.com\/tr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/pickandplacemachine.com\/tr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/pickandplacemachine.com\/tr\/wp-json\/wp\/v2\/comments?post=5569"}],"version-history":[{"count":2,"href":"https:\/\/pickandplacemachine.com\/tr\/wp-json\/wp\/v2\/posts\/5569\/revisions"}],"predecessor-version":[{"id":6395,"href":"https:\/\/pickandplacemachine.com\/tr\/wp-json\/wp\/v2\/posts\/5569\/revisions\/6395"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pickandplacemachine.com\/tr\/wp-json\/wp\/v2\/media\/5570"}],"wp:attachment":[{"href":"https:\/\/pickandplacemachine.com\/tr\/wp-json\/wp\/v2\/media?parent=5569"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pickandplacemachine.com\/tr\/wp-json\/wp\/v2\/categories?post=5569"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pickandplacemachine.com\/tr\/wp-json\/wp\/v2\/tags?post=5569"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}