{"id":5014,"date":"2026-01-19T08:38:00","date_gmt":"2026-01-19T00:38:00","guid":{"rendered":"https:\/\/www.topfastpcb.com\/?p=5014"},"modified":"2026-01-14T16:02:35","modified_gmt":"2026-01-14T08:02:35","slug":"x-ray-inspection-in-pcb-manufacturing","status":"publish","type":"post","link":"https:\/\/www.topfastpcb.com\/fi\/blog\/x-ray-inspection-in-pcb-manufacturing\/","title":{"rendered":"R\u00f6ntgentarkastus PCB-valmistuksessa"},"content":{"rendered":"<p>Kaikki piirilevyn viat eiv\u00e4t n\u00e4y pinnalta.<\/p><p>Koska PCB-malleista tulee:<\/p><ul class=\"wp-block-list\"><li>Paksumpi<\/li>\n\n<li>Monimutkaisempi<\/li>\n\n<li>Suurempi tiheys<\/li><\/ul><p>Monia kriittisi\u00e4 vikoja esiintyy <strong>l\u00e4pivientien, pinnoitettujen reikien ja sis\u00e4isten kerrosten sis\u00e4ll\u00e4<\/strong>-alueet, joita optinen tarkastus ei n\u00e4e.<\/p><p>R\u00f6ntgentarkastus antaa valmistajille mahdollisuuden tutkia n\u00e4it\u00e4 piilossa olevia rakenteita ja tunnistaa viat, joita AOI ei pysty havaitsemaan.<\/p><p><em>Edellinen tarkastusmenetelm\u00e4:<\/em><br><strong><a href=\"https:\/\/www.topfastpcb.com\/fi\/blog\/aoi-inspection-in-pcb-manufacturing\/\">AOI-tarkastus PCB-valmistuksessa<\/a><\/strong><\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"442\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/01\/X-Ray-Inspection.jpg\" alt=\"R\u00f6ntgentarkastus\" class=\"wp-image-5015\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/01\/X-Ray-Inspection.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/01\/X-Ray-Inspection-300x221.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/01\/X-Ray-Inspection-16x12.jpg 16w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><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\">Sis\u00e4llysluettelo<\/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\/fi\/blog\/x-ray-inspection-in-pcb-manufacturing\/#What_Is_X-Ray_Inspection\" >Mik\u00e4 on r\u00f6ntgentarkastus?<\/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\/fi\/blog\/x-ray-inspection-in-pcb-manufacturing\/#What_Is_X-Ray_Inspection-2\" >Mik\u00e4 on r\u00f6ntgentarkastus?<\/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\/fi\/blog\/x-ray-inspection-in-pcb-manufacturing\/#Defects_Commonly_Detected_by_X-Ray_Inspection\" >R\u00f6ntgentarkastuksessa yleisesti havaitut viat<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.topfastpcb.com\/fi\/blog\/x-ray-inspection-in-pcb-manufacturing\/#Via_and_Hole_Defects\" >Via- ja reik\u00e4viat<\/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\/fi\/blog\/x-ray-inspection-in-pcb-manufacturing\/#Internal_Structure_Issues\" >Sis\u00e4iseen rakenteeseen liittyv\u00e4t kysymykset<\/a><\/li><\/ul><\/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\/fi\/blog\/x-ray-inspection-in-pcb-manufacturing\/#X-Ray_Inspection_vs_AOI\" >R\u00f6ntgentarkastus vs. AOI<\/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\/fi\/blog\/x-ray-inspection-in-pcb-manufacturing\/#When_X-Ray_Inspection_Is_Applied\" >Kun r\u00f6ntgentarkastusta sovelletaan<\/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\/fi\/blog\/x-ray-inspection-in-pcb-manufacturing\/#X-Ray_Inspection_in_HDI_and_High-Reliability_PCBs\" >HDI- ja korkean luotettavuuden piirilevyjen r\u00f6ntgentarkastus<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.topfastpcb.com\/fi\/blog\/x-ray-inspection-in-pcb-manufacturing\/#Limitations_of_X-Ray_Inspection\" >R\u00f6ntgentarkastuksen rajoitukset<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.topfastpcb.com\/fi\/blog\/x-ray-inspection-in-pcb-manufacturing\/#Key_Limitations\" >Keskeiset rajoitukset<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.topfastpcb.com\/fi\/blog\/x-ray-inspection-in-pcb-manufacturing\/#X-Ray_Inspection_and_Reliability_Risk_Reduction\" >R\u00f6ntgentarkastus ja luotettavuusriskien v\u00e4hent\u00e4minen<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.topfastpcb.com\/fi\/blog\/x-ray-inspection-in-pcb-manufacturing\/#How_X-Ray_Fits_into_a_Complete_Inspection_Strategy\" >Miten r\u00f6ntgen sopii t\u00e4ydelliseen tarkastusstrategiaan?<\/a><\/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\/fi\/blog\/x-ray-inspection-in-pcb-manufacturing\/#Conclusion\" >P\u00e4\u00e4telm\u00e4<\/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\/fi\/blog\/x-ray-inspection-in-pcb-manufacturing\/#X-Ray_Inspection_FAQ\" >R\u00f6ntgentarkastus FAQ<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Is_X-Ray_Inspection\"><\/span>Mik\u00e4 on r\u00f6ntgentarkastus?<span class=\"ez-toc-section-end\"><\/span><\/h2><p>R\u00f6ntgentarkastuksessa k\u00e4ytet\u00e4\u00e4n kontrolloitua r\u00f6ntgens\u00e4teily\u00e4 PCB:n sis\u00e4isten rakenteiden visualisoimiseksi.<\/p><p>Toisin kuin optinen tarkastus, r\u00f6ntgenkuvaus:<\/p><ul class=\"wp-block-list\"><li>Tunkeutuu materiaaleihin<\/li>\n\n<li>Paljastaa sis\u00e4isen geometrian<\/li>\n\n<li>N\u00e4ytt\u00e4\u00e4 tiheyden vaihtelut<\/li><\/ul><p>T\u00e4m\u00e4n vuoksi se on ihanteellinen arvioitaessa <strong>l\u00e4piviennit, pinnoitetut l\u00e4piviennit ja sis\u00e4iset ominaisuudet<\/strong>.<\/p><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Is_X-Ray_Inspection-2\"><\/span>Mik\u00e4 on r\u00f6ntgentarkastus?<span class=\"ez-toc-section-end\"><\/span><\/h2><p>R\u00f6ntgentarkastuksessa k\u00e4ytet\u00e4\u00e4n kontrolloitua r\u00f6ntgens\u00e4teily\u00e4 PCB:n sis\u00e4isten rakenteiden visualisoimiseksi.<\/p><p>Toisin kuin optinen tarkastus, r\u00f6ntgenkuvaus:<\/p><ul class=\"wp-block-list\"><li>Tunkeutuu materiaaleihin<\/li>\n\n<li>Paljastaa sis\u00e4isen geometrian<\/li>\n\n<li>N\u00e4ytt\u00e4\u00e4 tiheyden vaihtelut<\/li><\/ul><p>T\u00e4m\u00e4n vuoksi se on ihanteellinen arvioitaessa <strong>l\u00e4piviennit, pinnoitetut l\u00e4piviennit ja sis\u00e4iset ominaisuudet<\/strong>.<\/p><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Defects_Commonly_Detected_by_X-Ray_Inspection\"><\/span>R\u00f6ntgentarkastuksessa yleisesti havaitut viat<span class=\"ez-toc-section-end\"><\/span><\/h2><p>R\u00f6ntgentarkastus on erityisen tehokas tunnistamaan <strong>sis\u00e4iset ja tilavuusvirheet<\/strong>.<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Via_and_Hole_Defects\"><\/span>Via- ja reik\u00e4viat<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li>Kuparipinnoituksen tyhj\u00e4t tilat<\/li>\n\n<li>Ep\u00e4t\u00e4ydellinen rei\u00e4n t\u00e4ytt\u00f6<\/li>\n\n<li>Ohut tynnyri kupari<\/li>\n\n<li>Offset tai v\u00e4\u00e4rin kohdistetut l\u00e4piviennit<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Internal_Structure_Issues\"><\/span>Sis\u00e4iseen rakenteeseen liittyv\u00e4t kysymykset<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li>Kerroksen virheellinen rekister\u00f6inti<\/li>\n\n<li>Sis\u00e4iset shortsit<\/li>\n\n<li>Hartsin tyhj\u00e4t tilat<\/li>\n\n<li>Delaminaatiotaskut<\/li><\/ul><p><em>Vikaantumismekanismit:<\/em><br><strong><a href=\"https:\/\/www.topfastpcb.com\/fi\/blog\/pcb-reliability-testing-standards\/\">PCB-luotettavuuden testaus selitetty<\/a><\/strong><\/p><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"X-Ray_Inspection_vs_AOI\"><\/span>R\u00f6ntgentarkastus vs. AOI<span class=\"ez-toc-section-end\"><\/span><\/h2><p>R\u00f6ntgentarkastus ja AOI-tarkastus kohdistuvat erityyppisiin vikoihin.<\/p><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Aspect<\/th><th>AOI<\/th><th>R\u00f6ntgenkuvaus<\/th><\/tr><\/thead><tbody><tr><td>N\u00e4kyvyys<\/td><td>Vain pinta<\/td><td>Sis\u00e4inen<\/td><\/tr><tr><td>Tarkastuksen kautta<\/td><td>\u274c<\/td><td>\u2705<\/td><\/tr><tr><td>Pinnoituksen laatu<\/td><td>\u274c<\/td><td>\u2705<\/td><\/tr><tr><td>Nopeus<\/td><td>Nopeampi<\/td><td>Hitaampi<\/td><\/tr><tr><td>Kustannukset<\/td><td>Alempi<\/td><td>Korkeampi<\/td><\/tr><\/tbody><\/table><\/figure><p>Ne ovat <strong>t\u00e4ydent\u00e4v\u00e4<\/strong>, eiv\u00e4t ole kesken\u00e4\u00e4n vaihdettavissa.<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"443\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/01\/X-Ray-Inspection-1.jpg\" alt=\"R\u00f6ntgentarkastus\" class=\"wp-image-5016\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/01\/X-Ray-Inspection-1.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/01\/X-Ray-Inspection-1-300x222.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/01\/X-Ray-Inspection-1-16x12.jpg 16w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"When_X-Ray_Inspection_Is_Applied\"><\/span>Kun r\u00f6ntgentarkastusta sovelletaan<span class=\"ez-toc-section-end\"><\/span><\/h2><p>Yleens\u00e4 k\u00e4ytet\u00e4\u00e4n r\u00f6ntgentarkastusta:<\/p><ul class=\"wp-block-list\"><li>Suuritiheyksisille tai monikerroksisille piirilevyille<\/li>\n\n<li>Suuren kuvasuhteen l\u00e4pivienneist\u00e4<\/li>\n\n<li>Prosessin validoinnin aikana<\/li>\n\n<li>Vika-analyysia varten<\/li><\/ul><p>Kustannussyist\u00e4 se on harvinaisempaa v\u00e4h\u00e4n monimutkaisissa ja suurissa sarjoissa valmistettavissa tuotteissa.<\/p><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"X-Ray_Inspection_in_HDI_and_High-Reliability_PCBs\"><\/span>HDI- ja korkean luotettavuuden piirilevyjen r\u00f6ntgentarkastus<span class=\"ez-toc-section-end\"><\/span><\/h2><p>HDI-mallit lis\u00e4\u00e4v\u00e4t riippuvuutta:<\/p><ul class=\"wp-block-list\"><li>Microvias<\/li>\n\n<li>pinotut tai porrastetut l\u00e4piviennit<\/li>\n\n<li>Ohuet dielektriset aineet<\/li><\/ul><p>R\u00f6ntgentarkastus auttaa varmistamaan:<\/p><ul class=\"wp-block-list\"><li>Microvia t\u00e4yt\u00f6n laatu<\/li>\n\n<li>Kohdistamisen kautta pinottu<\/li>\n\n<li>Kuparin jatkuvuus kerrosten v\u00e4lill\u00e4<\/li><\/ul><p><em>Prosessin monimutkaisuus:<\/em><br><strong><a href=\"https:\/\/www.topfastpcb.com\/fi\/blog\/pcb-manufacturing-process-explained-step-by-step\/\">PCB valmistusprosessi selitetty<\/a><\/strong><\/p><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Limitations_of_X-Ray_Inspection\"><\/span>R\u00f6ntgentarkastuksen rajoitukset<span class=\"ez-toc-section-end\"><\/span><\/h2><p>Vahvuuksistaan huolimatta r\u00f6ntgentarkastuksella on rajoituksia.<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Key_Limitations\"><\/span>Keskeiset rajoitukset<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li>Rajoitettu resoluutio hyvin ohuille piirteille<\/li>\n\n<li>Tulkinta edellytt\u00e4\u00e4 ammattitaitoisia insin\u00f6\u00f6rej\u00e4<\/li>\n\n<li>S\u00e4hk\u00f6ist\u00e4 suorituskyky\u00e4 ei voida t\u00e4ysin arvioida<\/li>\n\n<li>N\u00e4ytteenottoon perustuva, ei aina 100%<\/li><\/ul><p>R\u00f6ntgentarkastus tunnistaa mahdolliset ongelmat, mutta usein se vaatii <strong>korrelaatio s\u00e4hk\u00f6- tai luotettavuustestien kanssa<\/strong>.<\/p><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"X-Ray_Inspection_and_Reliability_Risk_Reduction\"><\/span>R\u00f6ntgentarkastus ja luotettavuusriskien v\u00e4hent\u00e4minen<span class=\"ez-toc-section-end\"><\/span><\/h2><p>R\u00f6ntgentarkastus on avainasemassa v\u00e4hent\u00e4misess\u00e4:<\/p><ul class=\"wp-block-list\"><li>Latentit ep\u00e4onnistumiset<\/li>\n\n<li>L\u00e4mp\u00f6v\u00e4symiseen liittyv\u00e4t ongelmat<\/li>\n\n<li>Ajoittaiset s\u00e4hk\u00f6viat<\/li><\/ul><p>Tunnistamalla sis\u00e4iset pinnoitusvirheet varhaisessa vaiheessa valmistajat voivat mukautua:<\/p><ul class=\"wp-block-list\"><li>Porausparametrit<\/li>\n\n<li>Pinnoituskemia<\/li>\n\n<li>Kuvasuhteen rajoitukset<\/li><\/ul><p><em>Kustannusten ja laadun tasapaino:<\/em><br><strong><a href=\"https:\/\/www.topfastpcb.com\/fi\/blog\/how-pcb-quotation-and-order-volume-affect-manufacturing-cost\/\">PCB-valmistuksen kustannukset vs. laatu Trade-offs<\/a><\/strong><\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"452\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/01\/X-Ray-Inspection-2.jpg\" alt=\"R\u00f6ntgentarkastus\" class=\"wp-image-5017\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/01\/X-Ray-Inspection-2.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/01\/X-Ray-Inspection-2-300x226.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/01\/X-Ray-Inspection-2-16x12.jpg 16w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_X-Ray_Fits_into_a_Complete_Inspection_Strategy\"><\/span>Miten r\u00f6ntgen sopii t\u00e4ydelliseen tarkastusstrategiaan?<span class=\"ez-toc-section-end\"><\/span><\/h2><p>Vankka PCB-tarkastusstrategia sis\u00e4lt\u00e4\u00e4 yleens\u00e4:<\/p><ul class=\"wp-block-list\"><li>Pintavikojen AOI<\/li>\n\n<li>Sis\u00e4isten rakenteiden r\u00f6ntgenkuvaus<\/li>\n\n<li>Jatkuvuuden s\u00e4hk\u00f6inen testaus<\/li>\n\n<li>Luotettavuustestaus pitk\u00e4n aikav\u00e4lin suorituskyky\u00e4 varten<\/li><\/ul><p>TOPFASTissa r\u00f6ntgentarkastusta sovelletaan valikoivasti seuraavien tekij\u00f6iden perusteella. <strong>suunnittelun monimutkaisuus ja luotettavuusvaatimukset<\/strong>, mik\u00e4 takaa tehokkuuden ilman tarpeettomia kustannuksia.<\/p><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>P\u00e4\u00e4telm\u00e4<span class=\"ez-toc-section-end\"><\/span><\/h2><p>R\u00f6ntgentarkastus mahdollistaa n\u00e4kyvyyden piirilevyjen piilossa oleviin rakenteisiin, joihin optiset menetelm\u00e4t eiv\u00e4t yll\u00e4.<\/p><p>R\u00f6ntgentarkastus ei ole v\u00e4ltt\u00e4m\u00e4t\u00f6n jokaisessa suunnittelussa, mutta se on v\u00e4ltt\u00e4m\u00e4t\u00f6nt\u00e4:<\/p><ul class=\"wp-block-list\"><li>HDI PCB:t<\/li>\n\n<li>Eritt\u00e4in luotettavat sovellukset<\/li>\n\n<li>Prosessin validointi ja vika-analyysi<\/li><\/ul><p>T\u00e4m\u00e4 artikkeli muodostaa toisen teknisen pilarin, joka on osa <strong>PCB:n tarkastus ja testaus<\/strong> klusteri.<\/p><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"X-Ray_Inspection_FAQ\"><\/span>R\u00f6ntgentarkastus FAQ<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-1768377092954\"><strong class=\"schema-faq-question\">Q: <strong>Voiko r\u00f6ntgentarkastus havaita kaikki PCB-viat?<\/strong><\/strong> <p class=\"schema-faq-answer\">V: Ei. Siin\u00e4 keskityt\u00e4\u00e4n sis\u00e4isiin rakenteisiin, ei pinta- tai s\u00e4hk\u00f6iseen suorituskykyyn.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1768377126749\"><strong class=\"schema-faq-question\">Q: <strong>Tarvitaanko r\u00f6ntgentarkastus kaikille PCB:ille?<\/strong><\/strong> <p class=\"schema-faq-answer\">V: Ei. Sit\u00e4 k\u00e4ytet\u00e4\u00e4n yleens\u00e4 monimutkaisissa tai eritt\u00e4in luotettavissa malleissa.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1768377163253\"><strong class=\"schema-faq-question\">Q: <strong>Korvaako r\u00f6ntgentarkastus s\u00e4hk\u00f6isen testauksen?<\/strong><\/strong> <p class=\"schema-faq-answer\">V: Ei. S\u00e4hk\u00f6testauksessa tarkistetaan jatkuvuus ja oikosulut.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1768377216845\"><strong class=\"schema-faq-question\">Q: <strong>Voidaanko r\u00f6ntgenkuvalla havaita mikrovian vikoja?<\/strong><\/strong> <p class=\"schema-faq-answer\">V: Kyll\u00e4. Sit\u00e4 k\u00e4ytet\u00e4\u00e4n yleisesti mikrovian t\u00e4yt\u00f6n arviointiin.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1768377252495\"><strong class=\"schema-faq-question\">Q: <strong>Miksi r\u00f6ntgentarkastus perustuu yleens\u00e4 n\u00e4ytteenottoon?<\/strong><\/strong> <p class=\"schema-faq-answer\">V: Kustannusten ja tarkastusaikarajoitusten vuoksi.<\/p> <\/div> <\/div>","protected":false},"excerpt":{"rendered":"<p>PCB-valmistuksen r\u00f6ntgentarkastus tekee n\u00e4kyv\u00e4ksi sis\u00e4iset viat, kuten tyhj\u00e4t tilat ja v\u00e4\u00e4r\u00e4n suuntaiset kohdat. Vaikka se on rajallinen ulkoisten ongelmien havaitsemisessa, se t\u00e4ydent\u00e4\u00e4 tehokkaasti AOI- ja s\u00e4hk\u00f6testausta kattavassa laadunvalvonnassa.<\/p>","protected":false},"author":1,"featured_media":5018,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[108],"tags":[433],"class_list":["post-5014","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-x-ray-inspection"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>X-Ray Inspection in PCB Manufacturing: Detecting Hidden Defects Inside PCBs<\/title>\n<meta name=\"description\" content=\"Understand how X-ray inspection works in PCB manufacturing, what internal defects it detects, its limitations, and how it complements AOI and electrical testing.\" \/>\n<meta name=\"robots\" content=\"index, follow, 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