{"id":3636,"date":"2025-07-15T14:42:44","date_gmt":"2025-07-15T06:42:44","guid":{"rendered":"https:\/\/www.topfastpcb.com\/?p=3636"},"modified":"2025-07-15T15:01:35","modified_gmt":"2025-07-15T07:01:35","slug":"what-is-the-shelf-life-of-pcb","status":"publish","type":"post","link":"https:\/\/www.topfastpcb.com\/sv\/blog\/what-is-the-shelf-life-of-pcb\/","title":{"rendered":"Hur l\u00e5ng \u00e4r h\u00e5llbarheten f\u00f6r PCB?"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_74 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Inneh\u00e5llsf\u00f6rteckning<\/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\/sv\/blog\/what-is-the-shelf-life-of-pcb\/#Factors_affecting_the_shelf_life_of_PCB\" >Faktorer som p\u00e5verkar h\u00e5llbarheten hos PCB<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.topfastpcb.com\/sv\/blog\/what-is-the-shelf-life-of-pcb\/#Surface_treatment_process\" >Ytbehandlingsprocess<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.topfastpcb.com\/sv\/blog\/what-is-the-shelf-life-of-pcb\/#Storage_conditions\" >F\u00f6rvaringsf\u00f6rh\u00e5llanden<\/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\/sv\/blog\/what-is-the-shelf-life-of-pcb\/#Material_properties\" >Materialegenskaper<\/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\/sv\/blog\/what-is-the-shelf-life-of-pcb\/#Expired_PCB_Disposal_Methods\" >Utg\u00e5ngna metoder f\u00f6r bortskaffande av PCB<\/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\/sv\/blog\/what-is-the-shelf-life-of-pcb\/#Failure_Mode_Analysis\" >Analys av feltillst\u00e5nd<\/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\/sv\/blog\/what-is-the-shelf-life-of-pcb\/#Tiered_Handling_Solutions\" >Niv\u00e5indelade hanteringsl\u00f6sningar<\/a><\/li><\/ul><\/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\/sv\/blog\/what-is-the-shelf-life-of-pcb\/#Engineering_Practices_to_Extend_PCB_Shelf_Life\" >Tekniska metoder f\u00f6r att f\u00f6rl\u00e4nga PCB:s h\u00e5llbarhetstid<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.topfastpcb.com\/sv\/blog\/what-is-the-shelf-life-of-pcb\/#Advanced_Packaging_Technology\" >Avancerad f\u00f6rpackningsteknik<\/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\/sv\/blog\/what-is-the-shelf-life-of-pcb\/#Optimized_Surface_Finish_Selection\" >Optimerat val av ytfinish<\/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\/sv\/blog\/what-is-the-shelf-life-of-pcb\/#Smart_Monitoring_Systems\" >Smarta \u00f6vervakningssystem<\/a><\/li><\/ul><\/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\/sv\/blog\/what-is-the-shelf-life-of-pcb\/#Risk_Assessment_for_Using_Expired_PCBs\" >Riskbed\u00f6mning f\u00f6r anv\u00e4ndning av PCB med utg\u00e5ngna datum<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.topfastpcb.com\/sv\/blog\/what-is-the-shelf-life-of-pcb\/#Mandatory_Inspection_Items\" >Obligatoriska inspektionsobjekt<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.topfastpcb.com\/sv\/blog\/what-is-the-shelf-life-of-pcb\/#Risk_Mitigation_Measures\" >Riskreducerande \u00e5tg\u00e4rder<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Factors_affecting_the_shelf_life_of_PCB\"><\/span>Faktorer som p\u00e5verkar h\u00e5llbarheten hos PCB<span class=\"ez-toc-section-end\"><\/span><\/h2><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Surface_treatment_process\"><\/span>Ytbehandlingsprocess<span class=\"ez-toc-section-end\"><\/span><\/h3><p>Ytfinishen p\u00e5 ett m\u00f6nsterkort \u00e4r avg\u00f6rande f\u00f6r hur l\u00e4nge det h\u00e5ller p\u00e5 hyllan. Det finns betydande skillnader i motst\u00e5ndskraft mot oxidation och skydd mot fukt.<\/p><ul class=\"wp-block-list\"><li><strong>HASL (Hot Air Solder Leveling): <\/strong>Det h\u00e4r \u00e4r en v\u00e4lk\u00e4nd process, men den fungerar bara i cirka sex m\u00e5nader och kan ibland leda till att tennoxid bildas.<\/li>\n\n<li><strong>ENIG (Electroless Nickel Immersion Gold)<\/strong>: 12 m\u00e5naders h\u00e5llbarhet, risk f\u00f6r \"black pad\" p\u00e5 grund av nickeldiffusion<\/li>\n\n<li><strong>F\u00f6rdjupning Silver<\/strong>: Endast 3 m\u00e5naders h\u00e5llbarhet, vilket \u00f6kar risken f\u00f6r silvermigration \u00f6ver tid<\/li>\n\n<li><strong>OSP (organiskt konserveringsmedel f\u00f6r l\u00f6dbarhet)<\/strong>: 3-6 m\u00e5nader, kr\u00e4ver luftt\u00e4t f\u00f6rslutning f\u00f6r att f\u00f6rhindra nedbrytning<\/li>\n\n<li><strong>Pl\u00e4tering med h\u00e5rdguld<\/strong>: F\u00f6r specialtill\u00e4mpningar, h\u00e5llbarhet upp till 24 m\u00e5nader<\/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\/07\/PCB-shelf-life-1.jpg\" alt=\"PCB:s h\u00e5llbarhetstid\" class=\"wp-image-3640\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/PCB-shelf-life-1.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/PCB-shelf-life-1-300x201.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/PCB-shelf-life-1-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Storage_conditions\"><\/span>F\u00f6rvaringsf\u00f6rh\u00e5llanden<span class=\"ez-toc-section-end\"><\/span><\/h3><p>F\u00f6rvaringsmilj\u00f6er som uppfyller IPC-1601-standarderna m\u00e5ste uppfylla:<\/p><ul class=\"wp-block-list\"><li><strong>Temperatur- och luftfuktighetsreglering<\/strong>:<\/li>\n\n<li>Optimalt temperaturomr\u00e5de: 20\u00b15\u00b0C (extremv\u00e4rden f\u00e5r inte \u00f6verstiga 15-30\u00b0C)<\/li>\n\n<li>Krav p\u00e5 luftfuktighet: 30-50% RH (max 70%)<\/li>\n\n<li><strong>F\u00f6rpackningsstandarder<\/strong>:<\/li>\n\n<li>Vakuumf\u00f6rseglade aluminiumfoliep\u00e5sar med &lt;5%-indikatorkort f\u00f6r luftfuktighet<\/li>\n\n<li>F\u00f6rbrukning av torkmedel \u226520 g\/m\u00b3 av f\u00f6rpackningsvolymen<\/li>\n\n<li><strong>Ljusskydd<\/strong>: UV-exponering p\u00e5skyndar nedbrytningen av OSP-film<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Material_properties\"><\/span>Materialegenskaper<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li><strong>Standard FR-4-kartonger<\/strong>: Teoretisk livsl\u00e4ngd p\u00e5 5-10 \u00e5r (o\u00f6ppnad)<\/li>\n\n<li><strong>Material f\u00f6r h\u00f6gfrekventa till\u00e4mpningar (t.ex. PTFE)<\/strong>: M\u00e5ste anv\u00e4ndas inom 3 \u00e5r<\/li>\n\n<li><strong>HDI-styrelser<\/strong>: Kortare h\u00e5llbarhetstid (20%-reduktion) p\u00e5 grund av tunnare dielektriska lager<\/li>\n\n<li><strong>Tunga kopparplattor (\u22653oz)<\/strong>: Kr\u00e4ver s\u00e4rskild uppm\u00e4rksamhet p\u00e5 risker f\u00f6r oxidation av innerskiktet<\/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\/07\/PCB-shelf-life-1-1.jpg\" alt=\"PCB:s h\u00e5llbarhetstid\" class=\"wp-image-3641\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/PCB-shelf-life-1-1.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/PCB-shelf-life-1-1-300x201.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/PCB-shelf-life-1-1-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><p>Beh\u00f6ver du en professionell bed\u00f6mning av PCB:s h\u00e5llbarhetstid? <a href=\"https:\/\/www.topfastpcb.com\/sv\/contact\/\">Kontakta v\u00e5rt team f\u00f6r tillf\u00f6rlitlighetsteknik f\u00f6r en kostnadsfri utv\u00e4rdering<\/a>.<\/p><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Expired_PCB_Disposal_Methods\"><\/span>Utg\u00e5ngna metoder f\u00f6r bortskaffande av PCB<span class=\"ez-toc-section-end\"><\/span><\/h2><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Failure_Mode_Analysis\"><\/span>Analys av feltillst\u00e5nd<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li><strong>Oxidering av metallskikt<\/strong>:<\/li><\/ul><ul class=\"wp-block-list\"><li>Nickeldiffusion till guldskiktet i ENIG-kort (&gt;12 m\u00e5nader)<\/li>\n\n<li>\u00d6kad risk f\u00f6r tin whisker i HASL-kretsar<\/li><\/ul><ul class=\"wp-block-list\"><li><strong>Nedbrytning av substrat<\/strong>:<\/li><\/ul><ul class=\"wp-block-list\"><li>Hydrolys av hartset minskar Tg-v\u00e4rdet<\/li>\n\n<li>Bindningsstyrkan mellan lagren minskar med \u226515% (IPC-TM-650-test)<\/li><\/ul><ul class=\"wp-block-list\"><li><strong>Risker med fuktabsorption<\/strong>:<\/li><\/ul><ul class=\"wp-block-list\"><li>Nedgradering av MSL-betyg (t.ex. fr\u00e5n MSL3 till MSL2)<\/li>\n\n<li>\u00c5ngtrycket \u00f6verskrider substratets gr\u00e4nser under omsm\u00e4ltning<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Tiered_Handling_Solutions\"><\/span>Niv\u00e5indelade hanteringsl\u00f6sningar<span class=\"ez-toc-section-end\"><\/span><\/h3><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u00d6verskriden varaktighet<\/th><th>Behandlingsprocess<\/th><th>Kvalitetskontrollpunkter<\/th><\/tr><\/thead><tbody><tr><td>\u22642 m\u00e5nader<\/td><td>120\u00b0C\/1h bakning<\/td><td>Fukthalt efter bakning &lt;0,1%<\/td><\/tr><tr><td>2-6 m\u00e5nader<\/td><td>120\u00b0C\/2h stegvis bakning<\/td><td>TMA-provning av delaminering kr\u00e4vs<\/td><\/tr><tr><td>6-12 m\u00e5nader<\/td><td>120\u00b0C\/4h + kv\u00e4veskydd<\/td><td>Obligatoriskt l\u00f6dbarhetstest<\/td><\/tr><tr><td>&gt;12 m\u00e5nader<\/td><td>Rekommenderad avfallshantering<\/td><td>Testning av prover med termisk chock<\/td><\/tr><\/tbody><\/table><\/figure><p><strong>S\u00e4rskilda behandlingstekniker<\/strong>:<\/p><ul class=\"wp-block-list\"><li>\u00c5terfl\u00f6desl\u00f6dning med kv\u00e4ve (O\u2082-halt &lt;100ppm)<\/li>\n\n<li>Anv\u00e4ndning av h\u00f6gaktiv l\u00f6dpasta som inte reng\u00f6rs (t.ex. ROL0-klass)<\/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\/07\/PCB-shelf-life-2.jpg\" alt=\"PCB:s h\u00e5llbarhetstid\" class=\"wp-image-3642\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/PCB-shelf-life-2.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/PCB-shelf-life-2-300x201.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/07\/PCB-shelf-life-2-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Engineering_Practices_to_Extend_PCB_Shelf_Life\"><\/span>Tekniska metoder f\u00f6r att f\u00f6rl\u00e4nga PCB:s h\u00e5llbarhetstid<span class=\"ez-toc-section-end\"><\/span><\/h2><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Advanced_Packaging_Technology\"><\/span>Avancerad f\u00f6rpackningsteknik<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li><strong>Skyddande f\u00f6rpackningar i flera lager<\/strong>:<\/li><\/ul><ol class=\"wp-block-list\"><li>Inre lager: Antistatisk aluminiumfoliep\u00e5se<\/li>\n\n<li>Mellanskikt: Syreabsorbent + indikatorkort f\u00f6r luftfuktighet<\/li>\n\n<li>Yttre lager: St\u00f6ts\u00e4ker stoppning av EPE<\/li><\/ol><ul class=\"wp-block-list\"><li><strong>L\u00f6sningar f\u00f6r l\u00e5ngtidsf\u00f6rvaring<\/strong>:<\/li>\n\n<li>Kv\u00e4vef\u00f6rvaring (O\u2082-halt &lt;0,5%)<\/li>\n\n<li>L\u00e5gtemperaturf\u00f6rvaring vid -10\u00b0C (kondensskydd kr\u00e4vs)<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Optimized_Surface_Finish_Selection\"><\/span>Optimerat val av ytfinish<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li><strong>Applikationer med h\u00f6g tillf\u00f6rlitlighet<\/strong>: ENEPIG (18 m\u00e5naders h\u00e5llbarhetstid)<\/li>\n\n<li><strong>Kostnadsk\u00e4nsliga projekt<\/strong>: ImAg+OSP hybridprocess<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Smart_Monitoring_Systems\"><\/span>Smarta \u00f6vervakningssystem<span class=\"ez-toc-section-end\"><\/span><\/h3><p>Implementera IoT-sensorer f\u00f6r sp\u00e5rning i realtid av:<\/p><ul class=\"wp-block-list\"><li>Fluktuationer i temperatur och luftfuktighet i lagret<\/li>\n\n<li>F\u00f6r\u00e4ndringar i det inre trycket i v\u00e4skan<\/li>\n\n<li>Missf\u00e4rgning av material (via maskinseende)<\/li><\/ul><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Risk_Assessment_for_Using_Expired_PCBs\"><\/span>Riskbed\u00f6mning f\u00f6r anv\u00e4ndning av PCB med utg\u00e5ngna datum<span class=\"ez-toc-section-end\"><\/span><\/h2><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Mandatory_Inspection_Items\"><\/span>Obligatoriska inspektionsobjekt<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li><strong>Provning av l\u00f6dbarhet<\/strong>:<\/li><\/ul><ul class=\"wp-block-list\"><li>Enligt IPC-J-STD-003B-standarder<\/li>\n\n<li>L\u00f6dningens spridningsyta m\u00e5ste \u00f6verstiga 95%<\/li><\/ul><ul class=\"wp-block-list\"><li><strong>Verifiering av tillf\u00f6rlitlighet<\/strong>:<\/li><\/ul><ul class=\"wp-block-list\"><li>Test av termisk cykling (-55\u00b0C~125\u00b0C, 100 cykler)<\/li>\n\n<li>Tryckkokartest (121\u00b0C\/100%RH, 96h)<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Risk_Mitigation_Measures\"><\/span>Riskreducerande \u00e5tg\u00e4rder<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li>100% kontroll av f\u00f6rsta artiklar + f\u00f6rstorad kontroll av l\u00f6dpunkter<\/li>\n\n<li>Ytterligare \u00e5ldringsscreening (48h\/85\u00b0C)<\/li>\n\n<li>Reserverade testkuddar l\u00e4ngs kartongens kanter<\/li><\/ul><p><\/p>","protected":false},"excerpt":{"rendered":"<p>Det \u00e4r fr\u00e4mst tre saker som p\u00e5verkar hur l\u00e4nge m\u00f6nsterkort h\u00e5ller: hur de behandlas under produktionen, hur de f\u00f6rvaras och vad sj\u00e4lva kortet beh\u00f6ver. Det finns en behandlingsplan f\u00f6r utg\u00e5ngna m\u00f6nsterkort som har graderats, och en teknisk praxisplan f\u00f6r att f\u00f6rl\u00e4nga h\u00e5llbarheten f\u00f6r m\u00f6nsterkort. Planen omfattar avancerad f\u00f6rpackningsteknik, f\u00f6rb\u00e4ttrade ytbehandlingsalternativ och intelligenta \u00f6vervakningssystem. Allt detta ger elektroniktillverkande f\u00f6retag en komplett l\u00f6sning f\u00f6r hantering av m\u00f6nsterkortets livsl\u00e4ngd.<\/p>","protected":false},"author":1,"featured_media":3638,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[109],"tags":[323],"class_list":["post-3636","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-faq","tag-pcb-shelf-life"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What is the shelf life of PCB? - Topfastpcb<\/title>\n<meta name=\"description\" content=\"The lifespan of PCBs can be anywhere from six months to 10 years. The main things that affect this are the surface treatment, how they are stored, and how they are disposed of when they are no longer needed.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.topfastpcb.com\/sv\/blog\/what-is-the-shelf-life-of-pcb\/\" \/>\n<meta property=\"og:locale\" content=\"sv_SE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What is the shelf life of PCB? - Topfastpcb\" \/>\n<meta property=\"og:description\" content=\"The lifespan of PCBs can be anywhere from six months to 10 years. 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