{"id":4709,"date":"2025-12-01T16:34:15","date_gmt":"2025-12-01T08:34:15","guid":{"rendered":"https:\/\/www.topfastpcb.com\/?p=4709"},"modified":"2025-12-01T16:34:20","modified_gmt":"2025-12-01T08:34:20","slug":"pcb-design-must-check","status":"publish","type":"post","link":"https:\/\/www.topfastpcb.com\/da\/blog\/pcb-design-must-check\/","title":{"rendered":"PCB-design skal tjekkes: 5 kritiske DFM-problemer og hvordan man undg\u00e5r dem"},"content":{"rendered":"<p>Inden for PCB-design, <a href=\"https:\/\/www.topfastpcb.com\/da\/blog\/complete-guide-to-pcb-design-for-manufacturability-dfm\/\">Design til fremstilling<\/a> (DFM) er den kritiske bro fra koncept til f\u00e6rdigt produkt. Statistikker viser, at over 70% af PCB-produktionsfejlene stammer fra problemer med fremstillingsmulighederne i designfasen. DFM-kontrol for hvert printkort er ikke kun et sp\u00f8rgsm\u00e5l om kvalitetssikring, men ogs\u00e5 et kerneelement i omkostningskontrol og produktp\u00e5lidelighed.<\/p><p>I mods\u00e6tning til almindelige misforst\u00e5elser er DFM ikke udelukkende producentens ansvar, men en n\u00f8glef\u00e6rdighed, som designere proaktivt skal mestre. Hvis man fors\u00f8mmer DFM-tjek, kan det f\u00f8re til designoml\u00e6gninger, produktionsforsinkelser, skyh\u00f8je omkostninger og endda risiko for, at produktet g\u00e5r helt i stykker.<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"402\" src=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/12\/PCB-Design-DFM-3.jpg\" alt=\"PCB-design DFM\" class=\"wp-image-4711\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/12\/PCB-Design-DFM-3.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/12\/PCB-Design-DFM-3-300x201.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/12\/PCB-Design-DFM-3-18x12.jpg 18w\" 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\">Indholdsfortegnelse<\/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\/da\/blog\/pcb-design-must-check\/#1_DFM_Fundamentals_Design_Wisdom_Beyond_DRC\" >1. Grundl\u00e6ggende DFM: Designvisdom ud over DRC<\/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\/da\/blog\/pcb-design-must-check\/#11_The_Essential_Difference_Between_DFM_and_DRC\" >1.1 Den v\u00e6sentlige forskel mellem DFM og DRC<\/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\/da\/blog\/pcb-design-must-check\/#12_Who_Should_Be_Responsible_for_DFM_Checking\" >1.2 Hvem skal v\u00e6re ansvarlig for DFM-kontrol?<\/a><\/li><\/ul><\/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\/da\/blog\/pcb-design-must-check\/#2_The_Top_5_DFM_Issues_PCB_Designs_Must_Avoid\" >2. De 5 st\u00f8rste DFM-problemer, som PCB-designs skal undg\u00e5<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.topfastpcb.com\/da\/blog\/pcb-design-must-check\/#21_Floating_Copper_and_Solder_Mask_Debris_Hidden_Short-Circuit_Risks\" >2.1 Flydende kobber og loddemaskerester: Skjulte kortslutningsrisici<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.topfastpcb.com\/da\/blog\/pcb-design-must-check\/#22_Inadequate_Thermal_Design_The_Invisible_Killer_of_Solder_Joint_Quality\" >2.2 Utilstr\u00e6kkeligt termisk design: Den usynlige dr\u00e6ber af loddefugenes kvalitet<\/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\/da\/blog\/pcb-design-must-check\/#23_Insufficient_Annular_Ring_The_Critical_Weakness_in_Layer_Interconnections\" >2.3 Utilstr\u00e6kkelig ringformet ring: Den kritiske svaghed i lagforbindelserne<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.topfastpcb.com\/da\/blog\/pcb-design-must-check\/#24_Insufficient_Copper-to-Board-Edge_Clearance_Edge_Short-Circuit_Risk\" >2.4 Utilstr\u00e6kkelig afstand mellem kobber og bordkant: Risiko for kortslutning i kanten<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.topfastpcb.com\/da\/blog\/pcb-design-must-check\/#25_Solder_Mask_and_Silkscreen_Design_Flaws_Assembly_Stage_Pitfalls\" >2.5 Fejl i loddemaske- og silketrykdesign: Faldgruber i monteringsfasen<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.topfastpcb.com\/da\/blog\/pcb-design-must-check\/#3_A_Systematic_DFM_Checking_Methodology\" >3. En systematisk metode til DFM-kontrol<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.topfastpcb.com\/da\/blog\/pcb-design-must-check\/#31_Phased_DFM_Checking_Process\" >3.1 Faset DFM-kontrolproces<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.topfastpcb.com\/da\/blog\/pcb-design-must-check\/#32_Best_Practices_for_Collaborating_with_Manufacturers\" >3.2 Bedste praksis for samarbejde med producenter<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.topfastpcb.com\/da\/blog\/pcb-design-must-check\/#4_Advanced_DFM_Technology_Trends\" >4. Tendenser inden for avanceret DFM-teknologi<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.topfastpcb.com\/da\/blog\/pcb-design-must-check\/#41_AI-Based_DFM_Prediction\" >4.1 AI-baseret DFM-forudsigelse<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.topfastpcb.com\/da\/blog\/pcb-design-must-check\/#42_3D_DFM_Analysis\" >4.2 3D DFM-analyse<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.topfastpcb.com\/da\/blog\/pcb-design-must-check\/#43_Cloud-Based_DFM_Collaboration_Platforms\" >4.3 Cloud-baserede DFM-samarbejdsplatforme<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.topfastpcb.com\/da\/blog\/pcb-design-must-check\/#Conclusion_DFM_as_the_Ultimate_Measure_of_Design_Maturity\" >Konklusion: DFM som det ultimative m\u00e5l for designmodenhed<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_DFM_Fundamentals_Design_Wisdom_Beyond_DRC\"><\/span>1. Grundl\u00e6ggende DFM: Designvisdom ud over DRC<span class=\"ez-toc-section-end\"><\/span><\/h2><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"11_The_Essential_Difference_Between_DFM_and_DRC\"><\/span>1.1 Den v\u00e6sentlige forskel mellem DFM og DRC<span class=\"ez-toc-section-end\"><\/span><\/h3><p>Design Rule Checking (DRC) er et grundl\u00e6ggende verifikationsv\u00e6rkt\u00f8j i <a href=\"https:\/\/www.topfastpcb.com\/da\/blog\/comprehensive-guide-to-pcb-design\/\">PCB-design<\/a>Det sikrer overholdelse af tekniske specifikationer som minimumsbredde og -afstand mellem sporene. DRC har dog klare begr\u00e6nsninger:<\/p><ul class=\"wp-block-list\"><li><strong>DRC kontrollerer regler, ikke fremstillingsmuligheder:<\/strong> DRC kan ikke afg\u00f8re, om et design er egnet til faktiske produktionsprocesser.<\/li>\n\n<li><strong>DFM tager h\u00f8jde for produktionstolerancer og procesmuligheder:<\/strong> \u00c6gte DFM-analyse omfatter faktorer fra den virkelige verden som materialeegenskaber, udstyrets n\u00f8jagtighed og procesvariationer.<\/li>\n\n<li><strong>DRC er sort-hvid; DFM er nuanceret:<\/strong> DRC markerer kun \"best\u00e5et\/ikke best\u00e5et\", mens DFM giver vurderinger p\u00e5 risikoniveau.<\/li><\/ul><p>For eksempel i Annular Ring checking:<\/p><ul class=\"wp-block-list\"><li>DRC kontrollerer kun den mindste tilladte v\u00e6rdi.<\/li>\n\n<li>DFM analyserer den faktiske risiko baseret p\u00e5 specifikke processer (laserboring, mekanisk boring osv.).<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"12_Who_Should_Be_Responsible_for_DFM_Checking\"><\/span>1.2 Hvem skal v\u00e6re ansvarlig for DFM-kontrol?<span class=\"ez-toc-section-end\"><\/span><\/h3><p><strong>Bedste praksis er kollaborativ kontrol mellem design og produktion:<\/strong><\/p><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Kontrollerende part<\/th><th>Fokusomr\u00e5der<\/th><th>Vigtige fordele<\/th><\/tr><\/thead><tbody><tr><td>Designer<\/td><td>Realisering af designintentioner, elektrisk ydeevne<\/td><td>Tidlig opdagelse af problemer, reduceret antal iterationer<\/td><\/tr><tr><td>Producent<\/td><td>Matchning af proceskapacitet, materialeegenskaber<\/td><td>Sikrer produktionens gennemf\u00f8rlighed og forbedrer udbyttet<\/td><\/tr><\/tbody><\/table><\/figure><p>Anerkendte PCB-producenter som TOPFAST r\u00e5dgiver: <strong>\"Designteams b\u00f8r indarbejde DFM-tankegangen fra de tidlige layoutfaser, ikke kun som et verifikationstrin efter endt design.\"<\/strong> Denne proaktive tilgang kan spare op til 40% i re-spin-omkostninger.<\/p><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_The_Top_5_DFM_Issues_PCB_Designs_Must_Avoid\"><\/span>2. De 5 st\u00f8rste DFM-problemer, som PCB-designs skal undg\u00e5<span class=\"ez-toc-section-end\"><\/span><\/h2><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"21_Floating_Copper_and_Solder_Mask_Debris_Hidden_Short-Circuit_Risks\"><\/span>2.1 Flydende kobber og loddemaskerester: Skjulte kortslutningsrisici<span class=\"ez-toc-section-end\"><\/span><\/h3><p><strong>Problemets natur:<\/strong><br>Bittesm\u00e5 stykker kobber eller loddemaskeaffald, der genereres under \u00e6tsningsprocessen, kan aflejres p\u00e5 kortet og skabe utilsigtede ledende stier eller \"antennestrukturer\", der f\u00f8rer til signalinterferens eller endda kortslutninger.<\/p><p><strong>Grundl\u00e6ggende \u00e5rsager:<\/strong><\/p><ul class=\"wp-block-list\"><li>Utilstr\u00e6kkelig afstand mellem kobberelementer<\/li>\n\n<li>Forkert design af loddemaske\u00e5bning<\/li>\n\n<li>Uoverensstemmende parametre for \u00e6tsningsprocessen<\/li><\/ul><p><strong>L\u00f8sninger:<\/strong><\/p><ol class=\"wp-block-list\"><li>Oprethold en minimumsafstand mellem kobberelementerne p\u00e5 0,004 tommer (ca. 0,1 mm).<\/li>\n\n<li>Brug dr\u00e5beformede puder for at reducere stresskoncentrationen.<\/li>\n\n<li>S\u00f8rg for korrekt udvidelse af loddemasken over kobberpuderne (typisk 2-3 mil).<\/li><\/ol><p><strong>Tjekliste for design:<\/strong><\/p><ul class=\"wp-block-list\"><li>Er alle isolerede kobberformer jordet eller fjernet?<\/li>\n\n<li>Er \u00e5bningerne i loddemasken 2-4 mil st\u00f8rre end puderne?<\/li>\n\n<li>Er der nogen omr\u00e5der, hvor der er risiko for, at der dannes kobbersplinter, der er mindre end 0,1 mm?<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"22_Inadequate_Thermal_Design_The_Invisible_Killer_of_Solder_Joint_Quality\"><\/span>2.2 Utilstr\u00e6kkeligt termisk design: Den usynlige dr\u00e6ber af loddefugenes kvalitet<span class=\"ez-toc-section-end\"><\/span><\/h3><p><strong>Konsekvenser af d\u00e5rligt termisk design:<\/strong><\/p><ul class=\"wp-block-list\"><li>Kolde loddesamlinger eller utilstr\u00e6kkelig befugtning<\/li>\n\n<li>Skader p\u00e5 komponenter som f\u00f8lge af termisk stress<\/li>\n\n<li>Forringet p\u00e5lidelighed p\u00e5 lang sigt<\/li><\/ul><p><strong>Effektive strategier for termisk design:<\/strong><\/p><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Designelement<\/th><th>Anbefalet parameter<\/th><th>Anvendelsesscenarie<\/th><\/tr><\/thead><tbody><tr><td>Power Plane Kobber V\u00e6gt<\/td><td>2-4 oz\/ft\u00b2<\/td><td>Design med h\u00f8j effekt<\/td><\/tr><tr><td>Termiske vias<\/td><td>Diameter 8-12 mil, placering i r\u00e6kkef\u00f8lge<\/td><td>IC'er med lav effekt<\/td><\/tr><tr><td>Afstand mellem kobberlag<\/td><td>\u2265 7 mils<\/td><td>Varmeafledning i flere lag<\/td><\/tr><tr><td>Spor af det ydre lag<\/td><td>F\u00f8r fortrinsvis spor med h\u00f8j effekt<\/td><td>Letter montering af k\u00f8lelegeme<\/td><\/tr><\/tbody><\/table><\/figure><p><strong>Avancerede teknikker:<\/strong><\/p><ul class=\"wp-block-list\"><li>Brug termopuder under varmef\u00f8lsomme komponenter.<\/li>\n\n<li>Implementer termiske via-arrays for at forbedre den vertikale varmeledning.<\/li>\n\n<li>R\u00e5df\u00f8r dig med producenter (som TOPFAST) om via-fyldning\/plugging-l\u00f8sninger til termiske vias.<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"23_Insufficient_Annular_Ring_The_Critical_Weakness_in_Layer_Interconnections\"><\/span>2.3 Utilstr\u00e6kkelig ringformet ring: Den kritiske svaghed i lagforbindelserne<span class=\"ez-toc-section-end\"><\/span><\/h3><p><strong>Tre fejltyper i ringformede ringe:<\/strong><\/p><ol class=\"wp-block-list\"><li><strong>Ikke-ideel ringformet region:<\/strong> P\u00e5lidelig, men suboptimal forbindelse.<\/li>\n\n<li><strong>Tangentiel forbindelse:<\/strong> Ringbredde n\u00e6r nul, hvilket skaber en skr\u00f8belig forbindelse.<\/li>\n\n<li><strong>Komplet udbrud:<\/strong> Borehullet rammer helt forbi puden og for\u00e5rsager et \u00e5bent kredsl\u00f8b.<\/li><\/ol><p><strong>Retningslinjer for design af ringformede ringe i henhold til IPC-standarder:<\/strong><\/p><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Designklasse<\/th><th>Via ringformet ring<\/th><th>Komponent Hul Ringformet ring<\/th><\/tr><\/thead><tbody><tr><td>IPC klasse 2tra-h\u00f8j t\u00e6thed<\/td><td>Borest\u00f8rrelse + 7 mils<\/td><td>Borest\u00f8rrelse + 9 mils<\/td><\/tr><tr><td>IPC klasse 3<\/td><td>Borest\u00f8rrelse + 10 mils<\/td><td>Borest\u00f8rrelse + 11 mils<\/td><\/tr><\/tbody><\/table><\/figure><p><strong>Vigtige kontrolpunkter:<\/strong><\/p><ul class=\"wp-block-list\"><li>Bekr\u00e6ft producentens faktiske evne til registreringsn\u00f8jagtighed.<\/li>\n\n<li>Kravene til ringformede ringe i de indre lag er strengere end i de ydre lag.<\/li>\n\n<li>Microvia-designs kr\u00e6ver s\u00e6rlige overvejelser i forbindelse med laserboring.<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"24_Insufficient_Copper-to-Board-Edge_Clearance_Edge_Short-Circuit_Risk\"><\/span>2.4 Utilstr\u00e6kkelig afstand mellem kobber og bordkant: Risiko for kortslutning i kanten<span class=\"ez-toc-section-end\"><\/span><\/h3><p><strong>Problemmekanisme:<\/strong><br>N\u00e5r kobberet er for t\u00e6t p\u00e5 printkanten, kan det f\u00f8re til afskalning af printet:<\/p><ul class=\"wp-block-list\"><li>Rivning eller delaminering af kobber<\/li>\n\n<li>Kortslutninger mellem lagene<\/li>\n\n<li>Tab af impedans-kontrol<\/li><\/ul><p><strong>Regler for design af sikkerhedsafstande:<\/strong><\/p><figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Afskalningsproces<\/th><th>Minimumskrav til clearance<\/th><th>Noter<\/th><\/tr><\/thead><tbody><tr><td>V-scoring<\/td><td>15 mil<\/td><td>M\u00e5lt fra V-score-linjen<\/td><\/tr><tr><td>Fr\u00e6sning\/fr\u00e6sning<\/td><td>10-12 mil<\/td><td>Tag h\u00f8jde for fr\u00e6sebits-tolerance<\/td><\/tr><tr><td>Fane-rutning (Mouse Bites)<\/td><td>8-10 mil<\/td><td>I omr\u00e5det for udbryderfanen<\/td><\/tr><\/tbody><\/table><\/figure><p><strong>Designbeskyttelsesforanstaltninger:<\/strong><\/p><ol class=\"wp-block-list\"><li>Tilf\u00f8j en jordet kobberring (Guard Ring) langs printkanten.<\/li>\n\n<li>Hold f\u00f8lsomme signaler mindst 20 mils v\u00e6k fra printkanten.<\/li>\n\n<li>Angiv tydeligt afskalningsmetoden i produktionsfilerne.<\/li><\/ol><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"25_Solder_Mask_and_Silkscreen_Design_Flaws_Assembly_Stage_Pitfalls\"><\/span>2.5 Fejl i loddemaske- og silketrykdesign: Faldgruber i monteringsfasen<span class=\"ez-toc-section-end\"><\/span><\/h3><p><strong>N\u00f8gler til design af loddemasker:<\/strong><\/p><ul class=\"wp-block-list\"><li>Udvidelse af loddemaske: Typisk 2-4 mil st\u00f8rre end pad'en.<\/li>\n\n<li>Minimum loddemaskebrobredde: 4-5 mils (afh\u00e6nger af farve).<\/li>\n\n<li>Tykke kobberplader: Loddemaske anbefales ikke til overfladekobber &gt; 3 oz.<\/li><\/ul><p><strong>Bedste praksis for silketryksdesign:<\/strong><\/p><ul class=\"wp-block-list\"><li>Teksth\u00f8jde \u2265 25 mils, linjebredde \u2265 4 mils.<\/li>\n\n<li>Undg\u00e5 silketryk over puder eller testpunkter.<\/li>\n\n<li>Tydelige markeringer af polaritet.<\/li><\/ul><p><strong>Undg\u00e5 almindelige fejl:<\/strong><\/p><pre class=\"wp-block-code\"><code>Forkert: Silketryk trykt direkte p\u00e5 eksponeret kobber.\nRigtigt: Hold 3-5 mils afstand mellem silketryk og kobberlag.\n\nForkert: Loddemaske d\u00e6kker t\u00e6tliggende pads helt.\nRigtigt: Brug loddemaskedefinerede pads, eller lav en loddemasked\u00e6mning.<\/code><\/pre><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\/12\/PCB-Design-DFM-2.jpg\" alt=\"PCB-design DFM\" class=\"wp-image-4710\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/12\/PCB-Design-DFM-2.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/12\/PCB-Design-DFM-2-300x201.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/12\/PCB-Design-DFM-2-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_A_Systematic_DFM_Checking_Methodology\"><\/span>3. En systematisk metode til DFM-kontrol<span class=\"ez-toc-section-end\"><\/span><\/h2><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"31_Phased_DFM_Checking_Process\"><\/span>3.1 Faset DFM-kontrolproces<span class=\"ez-toc-section-end\"><\/span><\/h3><p><strong>Fase 1: Skematisk designfase<\/strong><\/p><ul class=\"wp-block-list\"><li>Verifikation af komponentfodaftryk vs. fysisk del.<\/li>\n\n<li>Forel\u00f8bigt termisk design og analyse af str\u00f8mkapacitet.<\/li>\n\n<li>Planl\u00e6gning af testpunktets tilg\u00e6ngelighed.<\/li><\/ul><p><strong>Fase 2: Planl\u00e6gning af layout<\/strong><\/p><ul class=\"wp-block-list\"><li>Stack-up-design afstemt med producentens muligheder.<\/li>\n\n<li>Definition af strategi for impedansstyring.<\/li>\n\n<li>Design af afskalning og panelisering.<\/li><\/ul><p><strong>Fase 3: Implementering af routing<\/strong><\/p><ul class=\"wp-block-list\"><li>DRC og DFM-regelkontrol i realtid.<\/li>\n\n<li>DFM-overvejelser for signalintegritet.<\/li>\n\n<li>Analyse af termiske effekter for str\u00f8mintegritet.<\/li><\/ul><p><strong>Fase 4: Sidste tjek f\u00f8r frigivelse<\/strong><\/p><ul class=\"wp-block-list\"><li>Kontrol af produktionsfilens fuldst\u00e6ndighed.<\/li>\n\n<li>Sekund\u00e6r bekr\u00e6ftelse med producentens evner.<\/li>\n\n<li>Generering og gennemgang af DFM-rapporter.<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"32_Best_Practices_for_Collaborating_with_Manufacturers\"><\/span>3.2 Bedste praksis for samarbejde med producenter<span class=\"ez-toc-section-end\"><\/span><\/h3><ol class=\"wp-block-list\"><li><strong>Tidligt engagement:<\/strong> Inviter producenten til at gennemg\u00e5 designet af stakken.<\/li>\n\n<li><strong>Tilpasning af kapaciteter:<\/strong> Forst\u00e5 tydeligt producentens procesgr\u00e6nser.<\/li>\n\n<li><strong>Standardisering af filer:<\/strong> Lever komplette IPC-2581- eller ODB++-filer.<\/li>\n\n<li><strong>Kontinuerlig kommunikation:<\/strong> Etabler et feedback-loop mellem design og produktion.<\/li><\/ol><p>Professionelle producenter som TOPFAST leverer ofte online DFM-kontrolv\u00e6rkt\u00f8jer, s\u00e5 designerne kan f\u00e5 feedback om fremstillingsmuligheder i realtid, hvilket forkorter design-iterationscyklusserne betydeligt.<\/p><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Advanced_DFM_Technology_Trends\"><\/span>4. Tendenser inden for avanceret DFM-teknologi<span class=\"ez-toc-section-end\"><\/span><\/h2><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"41_AI-Based_DFM_Prediction\"><\/span>4.1 AI-baseret DFM-forudsigelse<span class=\"ez-toc-section-end\"><\/span><\/h3><p>Moderne EDA-v\u00e6rkt\u00f8jer er begyndt at integrere maskinl\u00e6ringsalgoritmer, der er i stand til det:<\/p><ul class=\"wp-block-list\"><li>Forudsigelse af hotspots for produktionsudbytte.<\/li>\n\n<li>Automatisk optimering af designregler.<\/li>\n\n<li>L\u00e6re af historiske fejltilstande og komme med forebyggende forslag.<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"42_3D_DFM_Analysis\"><\/span>4.2 3D DFM-analyse<span class=\"ez-toc-section-end\"><\/span><\/h3><p>Til HDI (High Density Interconnect) og avanceret indpakning:<\/p><ul class=\"wp-block-list\"><li>3D-elektromagnetisk og termisk samsimulering.<\/li>\n\n<li>Sp\u00e6ndingsanalyse og forudsigelse af sk\u00e6vheder.<\/li>\n\n<li>Verifikation af fremstillingsevnen i samleprocessen.<\/li><\/ul><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"43_Cloud-Based_DFM_Collaboration_Platforms\"><\/span>4.3 Cloud-baserede DFM-samarbejdsplatforme<span class=\"ez-toc-section-end\"><\/span><\/h3><ul class=\"wp-block-list\"><li>Synkronisering af design- og produktionsdata i realtid.<\/li>\n\n<li>Gennemgang i samarbejde med flere hold.<\/li>\n\n<li>Delte og akkumulerede DFM-videnbaser.<\/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\/11\/DFM.jpg\" alt=\"DFM\" class=\"wp-image-4698\" srcset=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/11\/DFM.jpg 600w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/11\/DFM-300x201.jpg 300w, https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/11\/DFM-18x12.jpg 18w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conclusion_DFM_as_the_Ultimate_Measure_of_Design_Maturity\"><\/span>Konklusion: DFM som det ultimative m\u00e5l for designmodenhed<span class=\"ez-toc-section-end\"><\/span><\/h2><p>Den sande test af printkortdesign ligger ikke i simuleringssoftware, men p\u00e5 produktionslinjen. Fremragende DFM-praksis betyder:<\/p><ol class=\"wp-block-list\"><li><strong>Et skift i tankegang fra \"Vil det virke?\" til \"Kan det lade sig g\u00f8re?\"<\/strong><\/li>\n\n<li><strong>En dyb forst\u00e5else og respekt for produktionsprocesser.<\/strong><\/li>\n\n<li><strong>Systemteknisk kapacitet gennem tv\u00e6rfunktionelt samarbejde.<\/strong><\/li><\/ol><p>Husk p\u00e5 det: DFM er ikke det sidste kontrolpunkt i designet, men en designfilosofi, der l\u00f8ber gennem hele processen. Hvert DFM-tjek er en investering i produktp\u00e5lidelighed, en optimering af produktionsomkostningerne og en fremskyndelse af time-to-market.<\/p><p><strong>De endelige anbefalinger:<\/strong><\/p><ul class=\"wp-block-list\"><li>Integrer DFM-kontrolpunkter i alle kritiske knudepunkter i designworkflowet.<\/li>\n\n<li>Invester i professionelle DFM-analysev\u00e6rkt\u00f8jer og -tjenester.<\/li>\n\n<li>Etabler langsigtede partnerskaber med teknisk dygtige producenter som f.eks. <a href=\"https:\/\/www.topfastpcb.com\/da\/about\/\">TOPFAST<\/a>.<\/li>\n\n<li>L\u00e6r l\u00f8bende om den seneste udvikling inden for produktionsprocesser.<\/li><\/ul><p>Ved at beherske disse centrale DFM-principper vil dine designede printkort ikke kun fungere perfekt i simuleringen, men ogs\u00e5 blive fremstillet effektivt p\u00e5 produktionslinjen og fungere p\u00e5lideligt i den endelige applikation - det er kendetegnende for \u00e6gte designsucces.<\/p>","protected":false},"excerpt":{"rendered":"<p>Denne artikel beskriver de fem centrale DFM-problemer i PCB-design: termisk styring, ringformede ringe, board edge clearance, p\u00e5f\u00f8ring af loddemaske og kobberh\u00e5ndtering. Den tydeligg\u00f8r de grundl\u00e6ggende forskelle mellem DFM og DRC og giver en tjekliste for hele processen og praktiske parametre. Artiklen understreger, at tidligt samarbejde med producenter som TOPFAST kan forbedre udbyttet betydeligt, reducere omkostningerne og opn\u00e5 problemfri integration fra design til produktion.<\/p>","protected":false},"author":1,"featured_media":4700,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[108],"tags":[411,110],"class_list":["post-4709","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-dfm","tag-pcb-design"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>PCB Design Must-Check: 5 Critical DFM Issues and How to Avoid Them - Topfastpcb<\/title>\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\/da\/blog\/pcb-design-must-check\/\" \/>\n<meta property=\"og:locale\" content=\"da_DK\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"PCB Design Must-Check: 5 Critical DFM Issues and How to Avoid Them - Topfastpcb\" \/>\n<meta property=\"og:description\" content=\"This article details the five core DFM issues in PCB design: thermal management, annular rings, board edge clearance, solder mask application, and copper handling. It clarifies the fundamental distinctions between DFM and DRC, providing a full-process checklist and practical parameters. The article emphasizes that early collaboration with manufacturers like TOPFAST can significantly improve yield, reduce costs, and achieve seamless integration from design to manufacturing.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.topfastpcb.com\/da\/blog\/pcb-design-must-check\/\" \/>\n<meta property=\"og:site_name\" content=\"Topfastpcb\" \/>\n<meta property=\"article:published_time\" content=\"2025-12-01T08:34:15+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-12-01T08:34:20+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/12\/PCB-Design-DFM-3.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"600\" \/>\n\t<meta property=\"og:image:height\" content=\"402\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"\u6258\u666e\u6cd5\u65af\u7279\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Skrevet af\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u6258\u666e\u6cd5\u65af\u7279\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimeret l\u00e6setid\" \/>\n\t<meta name=\"twitter:data2\" content=\"6 minutter\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/pcb-design-must-check\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/pcb-design-must-check\/\"},\"author\":{\"name\":\"\u6258\u666e\u6cd5\u65af\u7279\",\"@id\":\"https:\/\/www.topfastpcb.com\/#\/schema\/person\/39870874f1c329f3cd3693593dbdce3a\"},\"headline\":\"PCB Design Must-Check: 5 Critical DFM Issues and How to Avoid Them\",\"datePublished\":\"2025-12-01T08:34:15+00:00\",\"dateModified\":\"2025-12-01T08:34:20+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/pcb-design-must-check\/\"},\"wordCount\":1221,\"publisher\":{\"@id\":\"https:\/\/www.topfastpcb.com\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/pcb-design-must-check\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/11\/DFM-3-1.jpg\",\"keywords\":[\"DFM\",\"PCB Design\"],\"articleSection\":[\"News\"],\"inLanguage\":\"da-DK\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/pcb-design-must-check\/\",\"url\":\"https:\/\/www.topfastpcb.com\/blog\/pcb-design-must-check\/\",\"name\":\"PCB Design Must-Check: 5 Critical DFM Issues and How to Avoid Them - Topfastpcb\",\"isPartOf\":{\"@id\":\"https:\/\/www.topfastpcb.com\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/pcb-design-must-check\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/pcb-design-must-check\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/11\/DFM-3-1.jpg\",\"datePublished\":\"2025-12-01T08:34:15+00:00\",\"dateModified\":\"2025-12-01T08:34:20+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/pcb-design-must-check\/#breadcrumb\"},\"inLanguage\":\"da-DK\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.topfastpcb.com\/blog\/pcb-design-must-check\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"da-DK\",\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/pcb-design-must-check\/#primaryimage\",\"url\":\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/11\/DFM-3-1.jpg\",\"contentUrl\":\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/11\/DFM-3-1.jpg\",\"width\":600,\"height\":402,\"caption\":\"DFM\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.topfastpcb.com\/blog\/pcb-design-must-check\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.topfastpcb.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"PCB Design Must-Check: 5 Critical DFM Issues and How to Avoid Them\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.topfastpcb.com\/#website\",\"url\":\"https:\/\/www.topfastpcb.com\/\",\"name\":\"Topfastpcb\",\"description\":\"Topfast Prime Choice for Global Electronics Manufacturing\",\"publisher\":{\"@id\":\"https:\/\/www.topfastpcb.com\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.topfastpcb.com\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"da-DK\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.topfastpcb.com\/#organization\",\"name\":\"Topfastpcb\",\"url\":\"https:\/\/www.topfastpcb.com\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"da-DK\",\"@id\":\"https:\/\/www.topfastpcb.com\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/02\/cropped-topfast-logo.png\",\"contentUrl\":\"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/02\/cropped-topfast-logo.png\",\"width\":144,\"height\":56,\"caption\":\"Topfastpcb\"},\"image\":{\"@id\":\"https:\/\/www.topfastpcb.com\/#\/schema\/logo\/image\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.topfastpcb.com\/#\/schema\/person\/39870874f1c329f3cd3693593dbdce3a\",\"name\":\"\u6258\u666e\u6cd5\u65af\u7279\",\"sameAs\":[\"http:\/\/www.topfastpcb.com\"],\"url\":\"https:\/\/www.topfastpcb.com\/da\/blog\/author\/admin\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"PCB Design Must-Check: 5 Critical DFM Issues and How to Avoid Them - Topfastpcb","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.topfastpcb.com\/da\/blog\/pcb-design-must-check\/","og_locale":"da_DK","og_type":"article","og_title":"PCB Design Must-Check: 5 Critical DFM Issues and How to Avoid Them - Topfastpcb","og_description":"This article details the five core DFM issues in PCB design: thermal management, annular rings, board edge clearance, solder mask application, and copper handling. It clarifies the fundamental distinctions between DFM and DRC, providing a full-process checklist and practical parameters. The article emphasizes that early collaboration with manufacturers like TOPFAST can significantly improve yield, reduce costs, and achieve seamless integration from design to manufacturing.","og_url":"https:\/\/www.topfastpcb.com\/da\/blog\/pcb-design-must-check\/","og_site_name":"Topfastpcb","article_published_time":"2025-12-01T08:34:15+00:00","article_modified_time":"2025-12-01T08:34:20+00:00","og_image":[{"width":600,"height":402,"url":"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/12\/PCB-Design-DFM-3.jpg","type":"image\/jpeg"}],"author":"\u6258\u666e\u6cd5\u65af\u7279","twitter_card":"summary_large_image","twitter_misc":{"Skrevet af":"\u6258\u666e\u6cd5\u65af\u7279","Estimeret l\u00e6setid":"6 minutter"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.topfastpcb.com\/blog\/pcb-design-must-check\/#article","isPartOf":{"@id":"https:\/\/www.topfastpcb.com\/blog\/pcb-design-must-check\/"},"author":{"name":"\u6258\u666e\u6cd5\u65af\u7279","@id":"https:\/\/www.topfastpcb.com\/#\/schema\/person\/39870874f1c329f3cd3693593dbdce3a"},"headline":"PCB Design Must-Check: 5 Critical DFM Issues and How to Avoid Them","datePublished":"2025-12-01T08:34:15+00:00","dateModified":"2025-12-01T08:34:20+00:00","mainEntityOfPage":{"@id":"https:\/\/www.topfastpcb.com\/blog\/pcb-design-must-check\/"},"wordCount":1221,"publisher":{"@id":"https:\/\/www.topfastpcb.com\/#organization"},"image":{"@id":"https:\/\/www.topfastpcb.com\/blog\/pcb-design-must-check\/#primaryimage"},"thumbnailUrl":"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/11\/DFM-3-1.jpg","keywords":["DFM","PCB Design"],"articleSection":["News"],"inLanguage":"da-DK"},{"@type":"WebPage","@id":"https:\/\/www.topfastpcb.com\/blog\/pcb-design-must-check\/","url":"https:\/\/www.topfastpcb.com\/blog\/pcb-design-must-check\/","name":"PCB Design Must-Check: 5 Critical DFM Issues and How to Avoid Them - Topfastpcb","isPartOf":{"@id":"https:\/\/www.topfastpcb.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.topfastpcb.com\/blog\/pcb-design-must-check\/#primaryimage"},"image":{"@id":"https:\/\/www.topfastpcb.com\/blog\/pcb-design-must-check\/#primaryimage"},"thumbnailUrl":"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/11\/DFM-3-1.jpg","datePublished":"2025-12-01T08:34:15+00:00","dateModified":"2025-12-01T08:34:20+00:00","breadcrumb":{"@id":"https:\/\/www.topfastpcb.com\/blog\/pcb-design-must-check\/#breadcrumb"},"inLanguage":"da-DK","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.topfastpcb.com\/blog\/pcb-design-must-check\/"]}]},{"@type":"ImageObject","inLanguage":"da-DK","@id":"https:\/\/www.topfastpcb.com\/blog\/pcb-design-must-check\/#primaryimage","url":"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/11\/DFM-3-1.jpg","contentUrl":"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2025\/11\/DFM-3-1.jpg","width":600,"height":402,"caption":"DFM"},{"@type":"BreadcrumbList","@id":"https:\/\/www.topfastpcb.com\/blog\/pcb-design-must-check\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/www.topfastpcb.com\/"},{"@type":"ListItem","position":2,"name":"PCB Design Must-Check: 5 Critical DFM Issues and How to Avoid Them"}]},{"@type":"WebSite","@id":"https:\/\/www.topfastpcb.com\/#website","url":"https:\/\/www.topfastpcb.com\/","name":"Topfastpcb","description":"Topfast Prime Choice for Global Electronics Manufacturing","publisher":{"@id":"https:\/\/www.topfastpcb.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.topfastpcb.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"da-DK"},{"@type":"Organization","@id":"https:\/\/www.topfastpcb.com\/#organization","name":"Topfastpcb","url":"https:\/\/www.topfastpcb.com\/","logo":{"@type":"ImageObject","inLanguage":"da-DK","@id":"https:\/\/www.topfastpcb.com\/#\/schema\/logo\/image\/","url":"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/02\/cropped-topfast-logo.png","contentUrl":"https:\/\/www.topfastpcb.com\/wp-content\/uploads\/2026\/02\/cropped-topfast-logo.png","width":144,"height":56,"caption":"Topfastpcb"},"image":{"@id":"https:\/\/www.topfastpcb.com\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/www.topfastpcb.com\/#\/schema\/person\/39870874f1c329f3cd3693593dbdce3a","name":"\u6258\u666e\u6cd5\u65af\u7279","sameAs":["http:\/\/www.topfastpcb.com"],"url":"https:\/\/www.topfastpcb.com\/da\/blog\/author\/admin\/"}]}},"_links":{"self":[{"href":"https:\/\/www.topfastpcb.com\/da\/wp-json\/wp\/v2\/posts\/4709","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.topfastpcb.com\/da\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.topfastpcb.com\/da\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.topfastpcb.com\/da\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.topfastpcb.com\/da\/wp-json\/wp\/v2\/comments?post=4709"}],"version-history":[{"count":1,"href":"https:\/\/www.topfastpcb.com\/da\/wp-json\/wp\/v2\/posts\/4709\/revisions"}],"predecessor-version":[{"id":4712,"href":"https:\/\/www.topfastpcb.com\/da\/wp-json\/wp\/v2\/posts\/4709\/revisions\/4712"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.topfastpcb.com\/da\/wp-json\/wp\/v2\/media\/4700"}],"wp:attachment":[{"href":"https:\/\/www.topfastpcb.com\/da\/wp-json\/wp\/v2\/media?parent=4709"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.topfastpcb.com\/da\/wp-json\/wp\/v2\/categories?post=4709"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.topfastpcb.com\/da\/wp-json\/wp\/v2\/tags?post=4709"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}