{"id":4666,"date":"2026-01-22T07:41:45","date_gmt":"2026-01-22T07:41:45","guid":{"rendered":"https:\/\/flj-pcb.com\/?p=4666"},"modified":"2026-01-22T07:41:50","modified_gmt":"2026-01-22T07:41:50","slug":"pcb-stackup-design-from-2-to-8-layers-for-emi-control","status":"publish","type":"post","link":"https:\/\/flj-pcb.com\/fi\/pcb-stackup-design-from-2-to-8-layers-for-emi-control\/","title":{"rendered":"PCB Stackup Design 2-8 kerroksesta EMI-ohjaukseen"},"content":{"rendered":"<h2 class=\"wp-block-heading\">1. Pinoamissuunnittelun keskeiset periaatteet<\/h2>\n\n\n\n<p>Yleisesti ottaen pinoamisen suunnittelussa on noudatettava kahta s\u00e4\u00e4nt\u00f6\u00e4:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Jokaisella reitityskerroksella on oltava l\u00e4heinen viitekerros. Vertailukerros voi olla tehotaso tai maataso.<\/li>\n\n\n\n<li>Pid\u00e4 p\u00e4\u00e4virtataso ja maataso mahdollisimman l\u00e4hell\u00e4 toisiaan. T\u00e4m\u00e4 antaa suuremman kytkent\u00e4kapasitanssin.<\/li>\n<\/ul>\n\n\n\n<p>Alla on esimerkkej\u00e4 pinoutumista kaksikerroksisista levyist\u00e4 aina kahdeksankerroksisiin levyihin asti.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"500\" src=\"https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/Core-Principles-of-Stackup-Design.webp\" alt=\"Core Principles of Stackup Design\" class=\"wp-image-4667\" srcset=\"https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/Core-Principles-of-Stackup-Design.webp 800w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/Core-Principles-of-Stackup-Design-300x188.webp 300w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/Core-Principles-of-Stackup-Design-768x480.webp 768w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/Core-Principles-of-Stackup-Design-18x12.webp 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">2. Pinoamiskaaviot PCB-kerrosten lukum\u00e4\u00e4r\u00e4n mukaan<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">2.1 Yksi- ja kaksikerroksiset levykerrokset<\/h3>\n\n\n\n<p>Kaksikerroksisissa levyiss\u00e4 kerrosten m\u00e4\u00e4r\u00e4 on pieni. Pinoutumisongelmia ei ole samalla tavalla kuin monikerroksisissa levyiss\u00e4. EMI-s\u00e4teilyn hallinnan on tultava reitityksest\u00e4 ja asettelusta.<\/p>\n\n\n\n<p><a href=\"https:\/\/flj-pcb.com\/fi\/pcb-manufacturer\/single-sided-pcb\/\" data-type=\"page\" data-id=\"2625\">Yksikerroksinen<\/a> ja kaksikerroksisilla levyill\u00e4 on kasvavia EMC-ongelmia. Suurin syy on se, ett\u00e4 signaalisilmukoiden alueista voi tulla suuria. Suuret silmukka-alueet eiv\u00e4t ainoastaan aiheuta voimakasta s\u00e4teily\u00e4, vaan ne tekev\u00e4t piirist\u00e4 my\u00f6s herk\u00e4n ulkopuolisille h\u00e4iri\u00f6ille. EMC:n parantamiseksi yksinkertaisin askel on pienent\u00e4\u00e4 keskeisten signaalien silmukka-aluetta.<\/p>\n\n\n\n<p>Avainsignaalit: EMC-n\u00e4k\u00f6kulmasta keskeisi\u00e4 signaaleja ovat voimakkaan s\u00e4teilyn aiheuttavat signaalit ja signaalit, jotka ovat herkki\u00e4 ulkoiselle melulle. Voimakasta s\u00e4teily\u00e4 aiheuttavat signaalit ovat yleens\u00e4 jaksollisia signaaleja. T\u00e4llaisia ovat esimerkiksi kellot ja matalan kertaluvun osoitesignaalit. Kohinaherk\u00e4t signaalit ovat yleens\u00e4 matalan tason analogisia signaaleja.<\/p>\n\n\n\n<p>Yksi- ja kaksikerroksisia levyj\u00e4 k\u00e4ytet\u00e4\u00e4n yleens\u00e4 matalataajuisissa, alle 10 kHz:n analogisissa suunnitelmissa. K\u00e4yt\u00e4 n\u00e4it\u00e4 peruss\u00e4\u00e4nt\u00f6j\u00e4:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Reitit\u00e4 teho samassa kerroksessa s\u00e4teitt\u00e4isesti, kun se on mahdollista. Yrit\u00e4 pit\u00e4\u00e4 johtojen kokonaispituus pienen\u00e4.<\/li>\n\n\n\n<li>Pid\u00e4 virta- ja maajohdot l\u00e4hell\u00e4 toisiaan. Sijoita maajohto avainsignaalin viereen. Aseta t\u00e4m\u00e4 maajohto niin l\u00e4helle signaalia kuin mahdollista. T\u00e4m\u00e4 luo pienen silmukka-alueen. Pieni silmukkapinta-ala pienent\u00e4\u00e4 yhteismuotoista s\u00e4teily\u00e4 ja v\u00e4hent\u00e4\u00e4 signaalin herkkyytt\u00e4 ulkopuoliselle kohinalle. Kun laitat maaj\u00e4ljen signaalin viereen, pieni silmukka vet\u00e4\u00e4 puoleensa signaalin paluuvirtaa. Signaalivirta kulkee t\u00e4ll\u00f6in t\u00e4m\u00e4n pienen silmukan kautta eik\u00e4 muiden maadoitusv\u00e4ylien kautta.<\/li>\n\n\n\n<li>Jos kyseess\u00e4 on kaksipuolinen levy, aseta leve\u00e4 maaj\u00e4lki levyn toiselle puolelle suoraan signaalij\u00e4ljen alle. Tee t\u00e4st\u00e4 maadoitusj\u00e4ljest\u00e4 mahdollisimman leve\u00e4. N\u00e4in muodostuu silmukka-alue, joka on yht\u00e4 suuri kuin levyn paksuus kertaa signaalin pituus.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">2.2 Nelikerroksiset levykerrokset<\/h3>\n\n\n\n<p>Yleisi\u00e4 nelikerroksisia pinoja ovat:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>SIG - GND (tai PWR) - PWR (tai GND) - SIG<\/li>\n\n\n\n<li>GND - SIG (tai PWR) - SIG (tai PWR) - GND<\/li>\n<\/ol>\n\n\n\n<p>Molemmissa n\u00e4iss\u00e4 pinoamisissa on potentiaalinen ongelma, kun levyn vakiopaksuus on 1,6 mm (62 mil). Kerrosten v\u00e4lisest\u00e4 et\u00e4isyydest\u00e4 tulee suuri. Suuret v\u00e4lit vaikeuttavat impedanssin, kerroskytkenn\u00e4n ja suojauksen hallintaa. Erityisesti jos virta- ja maatasojen v\u00e4li on suuri, levyn kapasitanssi laskee. Alhainen piirilevyn kapasitanssi ei ole hyv\u00e4 kohinan suodattamisen kannalta.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"800\" height=\"445\" src=\"https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/Four-Layer-Board-Stackups.webp\" alt=\"Four-Layer Board Stackups\" class=\"wp-image-4668\" srcset=\"https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/Four-Layer-Board-Stackups.webp 800w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/Four-Layer-Board-Stackups-300x167.webp 300w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/Four-Layer-Board-Stackups-768x427.webp 768w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/Four-Layer-Board-Stackups-18x10.webp 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">Ensimm\u00e4isess\u00e4 pinossa (SIG - GND\/PWR - PWR\/GND - SIG)<\/h4>\n\n\n\n<p>Sit\u00e4 k\u00e4ytet\u00e4\u00e4n usein, kun pelilaudalla on paljon pelimerkkej\u00e4. T\u00e4m\u00e4 pinoaminen antaa hyv\u00e4n signaalin eheyden. EMI-suorituskyky ei ole yht\u00e4 hyv\u00e4. EMI:t\u00e4 on hallittava huolellisella reitityksell\u00e4 ja muilla yksityiskohdilla.<\/p>\n\n\n\n<p>T\u00e4rkeimm\u00e4t kohdat:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Aseta maataso sen signaalikerroksen viereen, jossa on tihein reititys. T\u00e4m\u00e4 auttaa absorboimaan ja v\u00e4hent\u00e4m\u00e4\u00e4n s\u00e4teily\u00e4.<\/li>\n\n\n\n<li>Lis\u00e4\u00e4 my\u00f6s levyn pinta-alaa. Noudata 20H-s\u00e4\u00e4nt\u00f6\u00e4.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">Toisessa pinoamisessa (GND - SIG\/PWR - SIG\/PWR - GND)<\/h4>\n\n\n\n<p>Ihmiset k\u00e4ytt\u00e4v\u00e4t sit\u00e4 silloin, kun sirutiheys on alhainen ja kun sirualueella on tilaa tehokuparivaluille. T\u00e4ss\u00e4 mallissa ulommat kerrokset ovat maatasoja ja kaksi sisemp\u00e4\u00e4 kerrosta ovat signaali- tai tehokerroksia. Reitit\u00e4 teho signaalikerroksessa leveill\u00e4 j\u00e4ljill\u00e4. Leve\u00e4t j\u00e4ljet tekev\u00e4t tehopolun impedanssista matalan ja mikroliuska-signaaliimpedanssista matalan. Ulommat maakerrokset voivat suojata sis\u00e4isi\u00e4 signaaleja s\u00e4teilylt\u00e4. EMI-valvonnan kannalta t\u00e4m\u00e4 on paras t\u00e4ll\u00e4 hetkell\u00e4 saatavilla oleva nelikerroksinen piirilevyrakenne.<\/p>\n\n\n\n<p>T\u00e4rkeimm\u00e4t kohdat:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Pid\u00e4 kahden sisemm\u00e4n sekasignaali- ja tehokerroksen v\u00e4linen et\u00e4isyys suurempana.<\/li>\n\n\n\n<li>Tee reitityssuunnat ortogonaalisiksi n\u00e4iden kerrosten v\u00e4lill\u00e4 ristikk\u00e4is\u00e4\u00e4nen v\u00e4ltt\u00e4miseksi.<\/li>\n\n\n\n<li>Valvontalauta-alue ja noudata 20H-s\u00e4\u00e4nt\u00f6\u00e4.<\/li>\n\n\n\n<li>Jos sinun on valvottava reititysimpedanssia, aseta j\u00e4ljet huolellisesti virran ja maadoituskuparisaarekkeiden alle.<\/li>\n\n\n\n<li>Yrit\u00e4 my\u00f6s yhdist\u00e4\u00e4 kuparikaadot virta- tai maadoituskerroksiin mahdollisimman paljon. T\u00e4m\u00e4 antaa hyv\u00e4n DC- ja matalataajuusyhteyden.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">2.3 Kuusikerroksiset piirilevyjen pinoamiset<\/h3>\n\n\n\n<p>Jos suunnittelussa on suuri sirutiheys ja suuri kellotaajuus, kannattaa harkita kuusikerroksisia levyj\u00e4. Kaksi suositeltua kuusikerroksista kokoonpanoa ovat seuraavat:<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Vaihtoehto 1: SIG - GND - SIG - PWR - GND - SIG<\/h4>\n\n\n\n<p>T\u00e4ll\u00e4 j\u00e4rjestelm\u00e4ll\u00e4 saat hyv\u00e4n signaalin eheyden. Jokainen signaalikerros sijaitsee maatason vieress\u00e4. Virta- ja maatasot ovat pareittain. Voit hallita kunkin reitityskerroksen impedanssia hyvin. Molemmat maatasot voivat absorboida magneettivuon hyvin. Kun virta- ja maatasot ovat t\u00e4ynn\u00e4, jokaisella signaalikerroksella on hyv\u00e4 paluupolku.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"800\" height=\"449\" src=\"https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/Six-Layer-Board-Stackups.webp\" alt=\"Six-Layer Board Stackups\" class=\"wp-image-4670\" srcset=\"https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/Six-Layer-Board-Stackups.webp 800w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/Six-Layer-Board-Stackups-300x168.webp 300w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/Six-Layer-Board-Stackups-768x431.webp 768w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/Six-Layer-Board-Stackups-18x10.webp 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">Vaihtoehto 2: GND - SIG - GND - PWR - SIG - GND<\/h4>\n\n\n\n<p>T\u00e4m\u00e4 vaihtoehto sopii levyille, joissa laitetiheys ei ole kovin suuri. Se s\u00e4ilytt\u00e4\u00e4 ensimm\u00e4isen vaihtoehdon edut. Lis\u00e4ksi yl\u00e4- ja alapuolen maatasot ovat jatkuvampia. Ne toimivat hyvin\u00e4 suojina.<\/p>\n\n\n\n<p>Huomautus: Aseta virtalevy l\u00e4helle sit\u00e4 puolta, joka ei ole p\u00e4\u00e4komponentin puoleinen. T\u00e4ll\u00f6in pohjataso on t\u00e4ydellisempi, ja EMI-suorituskyky on parempi kuin ensimm\u00e4isess\u00e4 vaihtoehdossa.<\/p>\n\n\n\n<p>Yhteenveto kuusikerroksisista levyist\u00e4:<\/p>\n\n\n\n<p>Pid\u00e4 virta- ja maatasojen v\u00e4linen et\u00e4isyys mahdollisimman pienen\u00e4. N\u00e4in saadaan aikaan hyv\u00e4 teho-maakytkent\u00e4. 62 milin levynpaksuudella kerrosv\u00e4li on pienempi kuin nelikerrosvaihtoehdoissa. Silti p\u00e4\u00e4virta- ja maadoitusv\u00e4li\u00e4 ei ole helppo tehd\u00e4 kovin pieneksi. Toiseen vaihtoehtoon verrattuna ensimm\u00e4inen vaihtoehto maksaa v\u00e4hemm\u00e4n. Siksi valitsemme usein ensimm\u00e4isen muodon k\u00e4yt\u00e4nn\u00f6n kasaukseen. Noudata suunnittelussa 20H-s\u00e4\u00e4nt\u00f6\u00e4 ja peilikerross\u00e4\u00e4nt\u00f6\u00e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2.4 Kahdeksankerroksiset piirilevyjen pinoamiset<\/h3>\n\n\n\n<p>Kahdeksankerroksisilla levyill\u00e4 on monia mahdollisia pinoamisia. Jotkin niist\u00e4 ovat EMI:n kannalta huonompia, koska niiden absorptio on heikko ja tehoimpedanssi suuri. Seuraavassa kuvataan kolme muotoa:<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Tyyppi A (ei hyv\u00e4)<\/h4>\n\n\n\n<p>T\u00e4ss\u00e4 muodossa on pienempi s\u00e4hk\u00f6magneettinen absorptio ja suurempi tehoimpedanssi. Sen kerrosj\u00e4rjestys on:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Signaali 1: komponenttipuoli, mikroliuska reitityskerros<\/li>\n\n\n\n<li>Signaali 2: sis\u00e4inen mikroliuska reitityskerros, hyv\u00e4 reitityskerros (X-suunta).<\/li>\n\n\n\n<li>Maa<\/li>\n\n\n\n<li>Signaali 3: nauhalinjan reitityskerros, hyv\u00e4 reitityskerros (Y-suunta).<\/li>\n\n\n\n<li>Signaali 4: nauhalinjan reitityskerros<\/li>\n\n\n\n<li>Teho<\/li>\n\n\n\n<li>Signaali 5: sis\u00e4inen mikroliuskainen reitityskerros<\/li>\n\n\n\n<li>Signaali 6: mikroliuskainen reitityskerros<\/li>\n<\/ul>\n\n\n\n<p>T\u00e4m\u00e4 lomake ei ole hyv\u00e4 valinta, koska se ei anna johdonmukaisia viittauksia kaikille signaalikerroksille. Virtaimpedanssi on korkea ja EMI-ohjaus on heikko.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Tyyppi B (muunnos, johon on lis\u00e4tty vertailukerroksia)<\/h4>\n\n\n\n<p>T\u00e4m\u00e4 on kolmannen tyypin muunnos. Lis\u00e4\u00e4m\u00e4ll\u00e4 viitekerroksia saadaan parempi EMI-suorituskyky. Kunkin signaalikerroksen ominaisimpedanssia voidaan hallita hyvin. Yksi mahdollinen j\u00e4rjestys on:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Signaali 1: komponenttipuoli, mikroliuska reitityskerros, hyv\u00e4 reitityskerros.<\/li>\n\n\n\n<li>Maa: hyv\u00e4 aaltojen absorptio<\/li>\n\n\n\n<li>Signaali 2: nauhalinjan reitityskerros, hyv\u00e4 reitityskerros.<\/li>\n\n\n\n<li>Teho: t\u00e4m\u00e4 tehotasanne ja sen alapuolella oleva maa muodostavat hyv\u00e4n s\u00e4hk\u00f6magneettisen absorption.<\/li>\n\n\n\n<li>Maa: maataso<\/li>\n\n\n\n<li>Signaali 3: nauhalinjan reitityskerros, hyv\u00e4 reitityskerros.<\/li>\n\n\n\n<li>Teho: t\u00e4ll\u00e4 tehotasolla on suurempi tehoimpedanssi.<\/li>\n\n\n\n<li>Signaali 4: mikroliuska reitityskerros, hyv\u00e4 reitityskerros.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">Tyyppi C (paras k\u00e4yt\u00e4nt\u00f6)<\/h4>\n\n\n\n<p>T\u00e4m\u00e4 on paras pinoamismuoto. Siin\u00e4 k\u00e4ytet\u00e4\u00e4n useita maavertailutasoja. T\u00e4m\u00e4 antaa eritt\u00e4in hyv\u00e4n s\u00e4hk\u00f6magneettisen absorption. Yleinen j\u00e4rjestys on:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Signaali 1: komponenttipuoli, mikroliuska reitityskerros, hyv\u00e4 reitityskerros.<\/li>\n\n\n\n<li>Maa: hyv\u00e4 aaltojen absorptio<\/li>\n\n\n\n<li>Signaali 2: nauhalinjan reitityskerros, hyv\u00e4 reitityskerros.<\/li>\n\n\n\n<li>Teho: t\u00e4m\u00e4 tehotasanne ja sen alapuolella oleva maa muodostavat erinomaisen s\u00e4hk\u00f6magneettisen absorption.<\/li>\n\n\n\n<li>Maa: maataso<\/li>\n\n\n\n<li>Signaali 3: nauhalinjan reitityskerros, hyv\u00e4 reitityskerros.<\/li>\n\n\n\n<li>Maa: toinen maataso, hyv\u00e4 aaltojen absorptio.<\/li>\n\n\n\n<li>Signaali 4: mikroliuska reitityskerros, hyv\u00e4 reitityskerros.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">3. Kerrosten lukum\u00e4\u00e4r\u00e4n ja pinoamisen valitseminen<\/h2>\n\n\n\n<p>Valitse kerrosten m\u00e4\u00e4r\u00e4 ja pinoamismuoto monien tekij\u00f6iden perusteella. N\u00e4it\u00e4 ovat muun muassa: levyn signaaliverkkojen m\u00e4\u00e4r\u00e4, komponenttitiheys, nastatiheys, signaalitaajuudet ja levyn koko. Harkitse kaikkia n\u00e4it\u00e4 yhdess\u00e4.<\/p>\n\n\n\n<p>Muotoilutiedot:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Jos signaaliverkkoja on paljon, suunnittele useammalla kerroksella.<\/li>\n\n\n\n<li>Jos komponenttitiheys on suuri, valitse enemm\u00e4n kerroksia.<\/li>\n\n\n\n<li>Jos nastatiheys on suuri, valitse enemm\u00e4n kerroksia.<\/li>\n\n\n\n<li>Jos signaalin taajuus on korkea, valitse enemm\u00e4n kerroksia.<\/li>\n\n\n\n<li>Hyv\u00e4n EMI-suorituskyvyn saavuttamiseksi yrit\u00e4 varmistaa, ett\u00e4 jokaisella signaalikerroksella on oma vertailukerroksensa. Vertailukerros voi olla maa tai virta. T\u00e4m\u00e4 auttaa hallitsemaan impedanssia ja antaa tiiviit paluureitit. Tiiviit paluureitit pienent\u00e4v\u00e4t silmukkapinta-alaa. Pienempi silmukkapinta-ala v\u00e4hent\u00e4\u00e4 s\u00e4teily\u00e4 ja h\u00e4iri\u00f6herkkyytt\u00e4.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">4. Yksinkertaiset s\u00e4\u00e4nn\u00f6t, joita on noudatettava kaikissa malleissa<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Anna jokaiselle reitityskerrokselle l\u00e4heinen vertailutaso. T\u00e4m\u00e4 auttaa hallitsemaan impedanssia ja paluuvirtaa.<\/li>\n\n\n\n<li>Yhdist\u00e4 virta- ja maatasot, kun se on mahdollista. Pid\u00e4 v\u00e4limatka pienen\u00e4. T\u00e4m\u00e4 lis\u00e4\u00e4 tason kapasitanssia. Suuri tasokapasitanssi alentaa kohinaa.<\/li>\n\n\n\n<li>Aseta maataso sen signaalikerroksen viereen, jossa on tihe\u00e4 reititys. T\u00e4m\u00e4 auttaa absorboimaan ja pys\u00e4ytt\u00e4m\u00e4\u00e4n s\u00e4teily\u00e4.<\/li>\n\n\n\n<li>K\u00e4yt\u00e4 ortogonaalista reitityst\u00e4 vierekk\u00e4isill\u00e4 signaalikerroksilla ristikk\u00e4isviestinn\u00e4n v\u00e4hent\u00e4miseksi.<\/li>\n\n\n\n<li>K\u00e4yt\u00e4 leve\u00e4\u00e4 j\u00e4lke\u00e4 tehon reitityksess\u00e4 sekoitetuissa kerroksissa, jotta tehopolun impedanssi pysyy alhaisena.<\/li>\n\n\n\n<li>Interconnect-kupari valuu virta- ja maatasoille, jotta saat vahvat DC- ja matalataajuusyhteydet.<\/li>\n\n\n\n<li>Noudata 20H-s\u00e4\u00e4nt\u00f6\u00e4, kun m\u00e4\u00e4rit\u00e4t levyn pinta-alaa, ja pid\u00e4 mieless\u00e4 peilikerroksen suunnittelus\u00e4\u00e4nn\u00f6t.<\/li>\n\n\n\n<li>Kun kyseess\u00e4 on nopea tai tihe\u00e4 rakenne, suosi kuusi- tai kahdeksankerroksisia levyj\u00e4, jotta jokaisella signaalikerroksella on l\u00e4heinen vertailukohta.<\/li>\n\n\n\n<li>Matalataajuisissa analogisissa malleissa yksi- tai kaksikerroksiset levyt voivat toimia, jos silmukka-alueet pidet\u00e4\u00e4n pienin\u00e4 ja maadoitus sijoitetaan l\u00e4helle signaaleja.<\/li>\n\n\n\n<li>Kun voit, tee sis\u00e4iset virta- ja maatasot l\u00e4hekk\u00e4in. T\u00e4m\u00e4 parantaa irrotusta ja v\u00e4hent\u00e4\u00e4 s\u00e4hk\u00f6magneettista h\u00e4iri\u00f6t\u00e4.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">5. Loppusanat<\/h2>\n\n\n\n<p>Pinoamisvalinta on j\u00e4rjestelm\u00e4vaihtoehto. Tarkastele verkkoja, asettelua, komponenttien sijoittelua, nastojen m\u00e4\u00e4r\u00e4\u00e4 ja taajuutta kerralla. Paremman EMI:n ja signaalien hallinnan varmistamiseksi anna jokaiselle signaalikerrokselle selke\u00e4 l\u00e4hiviittaus. K\u00e4yt\u00e4 paritettuja tasoja ja kapeita tasov\u00e4lej\u00e4, kun se on mahdollista. K\u00e4yt\u00e4 useita maatasoja parhaan s\u00e4hk\u00f6magneettisen absorption saavuttamiseksi monikerroksisissa levyiss\u00e4. Kun suunnittelet, tasapainota kustannukset ja suorituskyky. Noudata edell\u00e4 esitettyj\u00e4 yksinkertaisia s\u00e4\u00e4nt\u00f6j\u00e4 ja valitse piirilevyn tarpeisiin sopiva pinoaminen.<\/p>","protected":false},"excerpt":{"rendered":"<p>1. Core Principles of Stackup Design Overall, stackup design must follow two rules: Below are example stackups from two-layer boards [&hellip;]<\/p>","protected":false},"author":1,"featured_media":4669,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[36],"tags":[58,165,162,159,174,163,172,150,169,164,170,168,142,166,167,173,54,171],"class_list":["post-4666","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-pcb-design","tag-emc-design","tag-emi-control","tag-ground-plane","tag-high-speed-pcb-2","tag-microstrip","tag-multilayer-pcb","tag-pcb-design-guide","tag-pcb-emi","tag-pcb-layer-spacing","tag-pcb-layer-stackup","tag-pcb-layout-design","tag-pcb-routing","tag-pcb-stackup","tag-power-integrity","tag-power-plane","tag-reference-plane","tag-signal-integrity","tag-stripline"],"spectra_custom_meta":{"_edit_lock":["1769067797:1"],"rank_math_internal_links_processed":["1"],"rank_math_primary_category":["36"],"rank_math_seo_score":["24"],"rank_math_title":["%title%"],"_thumbnail_id":["4669"],"_uag_custom_page_level_css":[""],"site-sidebar-layout":["default"],"site-content-layout":[""],"ast-site-content-layout":["default"],"site-content-style":["default"],"site-sidebar-style":["default"],"ast-global-header-display":[""],"ast-banner-title-visibility":[""],"ast-main-header-display":[""],"ast-hfb-above-header-display":[""],"ast-hfb-below-header-display":[""],"ast-hfb-mobile-header-display":[""],"site-post-title":[""],"ast-breadcrumbs-content":[""],"ast-featured-img":[""],"footer-sml-layout":[""],"theme-transparent-header-meta":[""],"adv-header-id-meta":[""],"stick-header-meta":[""],"header-above-stick-meta":[""],"header-main-stick-meta":[""],"header-below-stick-meta":[""],"astra-migrate-meta-layouts":["default"],"ast-page-background-enabled":["default"],"ast-page-background-meta":["a:3:{s:7:\"desktop\";a:12:{s:16:\"background-color\";s:25:\"var(--ast-global-color-5)\";s:16:\"background-image\";s:0:\"\";s:17:\"background-repeat\";s:6:\"repeat\";s:19:\"background-position\";s:13:\"center center\";s:15:\"background-size\";s:4:\"auto\";s:21:\"background-attachment\";s:6:\"scroll\";s:15:\"background-type\";s:0:\"\";s:16:\"background-media\";s:0:\"\";s:12:\"overlay-type\";s:0:\"\";s:13:\"overlay-color\";s:0:\"\";s:15:\"overlay-opacity\";s:0:\"\";s:16:\"overlay-gradient\";s:0:\"\";}s:6:\"tablet\";a:12:{s:16:\"background-color\";s:0:\"\";s:16:\"background-image\";s:0:\"\";s:17:\"background-repeat\";s:6:\"repeat\";s:19:\"background-position\";s:13:\"center center\";s:15:\"background-size\";s:4:\"auto\";s:21:\"background-attachment\";s:6:\"scroll\";s:15:\"background-type\";s:0:\"\";s:16:\"background-media\";s:0:\"\";s:12:\"overlay-type\";s:0:\"\";s:13:\"overlay-color\";s:0:\"\";s:15:\"overlay-opacity\";s:0:\"\";s:16:\"overlay-gradient\";s:0:\"\";}s:6:\"mobile\";a:12:{s:16:\"background-color\";s:0:\"\";s:16:\"background-image\";s:0:\"\";s:17:\"background-repeat\";s:6:\"repeat\";s:19:\"background-position\";s:13:\"center center\";s:15:\"background-size\";s:4:\"auto\";s:21:\"background-attachment\";s:6:\"scroll\";s:15:\"background-type\";s:0:\"\";s:16:\"background-media\";s:0:\"\";s:12:\"overlay-type\";s:0:\"\";s:13:\"overlay-color\";s:0:\"\";s:15:\"overlay-opacity\";s:0:\"\";s:16:\"overlay-gradient\";s:0:\"\";}}"],"ast-content-background-meta":["a:3:{s:7:\"desktop\";a:12:{s:16:\"background-color\";s:25:\"var(--ast-global-color-4)\";s:16:\"background-image\";s:0:\"\";s:17:\"background-repeat\";s:6:\"repeat\";s:19:\"background-position\";s:13:\"center center\";s:15:\"background-size\";s:4:\"auto\";s:21:\"background-attachment\";s:6:\"scroll\";s:15:\"background-type\";s:0:\"\";s:16:\"background-media\";s:0:\"\";s:12:\"overlay-type\";s:0:\"\";s:13:\"overlay-color\";s:0:\"\";s:15:\"overlay-opacity\";s:0:\"\";s:16:\"overlay-gradient\";s:0:\"\";}s:6:\"tablet\";a:12:{s:16:\"background-color\";s:25:\"var(--ast-global-color-4)\";s:16:\"background-image\";s:0:\"\";s:17:\"background-repeat\";s:6:\"repeat\";s:19:\"background-position\";s:13:\"center center\";s:15:\"background-size\";s:4:\"auto\";s:21:\"background-attachment\";s:6:\"scroll\";s:15:\"background-type\";s:0:\"\";s:16:\"background-media\";s:0:\"\";s:12:\"overlay-type\";s:0:\"\";s:13:\"overlay-color\";s:0:\"\";s:15:\"overlay-opacity\";s:0:\"\";s:16:\"overlay-gradient\";s:0:\"\";}s:6:\"mobile\";a:12:{s:16:\"background-color\";s:25:\"var(--ast-global-color-4)\";s:16:\"background-image\";s:0:\"\";s:17:\"background-repeat\";s:6:\"repeat\";s:19:\"background-position\";s:13:\"center center\";s:15:\"background-size\";s:4:\"auto\";s:21:\"background-attachment\";s:6:\"scroll\";s:15:\"background-type\";s:0:\"\";s:16:\"background-media\";s:0:\"\";s:12:\"overlay-type\";s:0:\"\";s:13:\"overlay-color\";s:0:\"\";s:15:\"overlay-opacity\";s:0:\"\";s:16:\"overlay-gradient\";s:0:\"\";}}"],"footnotes":[""],"_elementor_edit_mode":[""],"_elementor_template_type":[""],"_elementor_data":[""],"_elementor_conditions":["a:0:{}"],"_edit_last":["1"],"_uag_page_assets":["a:9:{s:3:\"css\";s:30185:\".uag-blocks-common-selector{z-index:var(--z-index-desktop) !important}@media (max-width: 976px){.uag-blocks-common-selector{z-index:var(--z-index-tablet) !important}}@media (max-width: 767px){.uag-blocks-common-selector{z-index:var(--z-index-mobile) !important}}\n.uagb-social-share__outer-wrap,.uagb-social-share__wrap{display:flex;align-items:center;justify-content:center}.uagb-social-share__layout-vertical.uagb-social-share__outer-wrap,.uagb-social-share__layout-vertical .uagb-social-share__wrap{flex-direction:column}.uagb-social-share__layout-vertical .wp-block-uagb-social-share-child.uagb-ss-repeater.uagb-ss__wrapper:first-child{margin-top:0 !important}.uagb-social-share__layout-vertical .wp-block-uagb-social-share-child.uagb-ss-repeater.uagb-ss__wrapper:last-child{margin-bottom:0 !important}.uagb-social-share__outer-wrap a.uagb-button__link:focus{box-shadow:none}.uagb-social-share__outer-wrap .uagb-ss__wrapper{padding:0;margin-left:5px;margin-right:5px;transition:all 0.2s;display:inline-flex;text-align:center}.uagb-social-share__outer-wrap .uagb-ss__source-wrap{display:inline-block}.uagb-social-share__outer-wrap .uagb-ss__link{color:#3a3a3a;display:inline-table;line-height:0;cursor:pointer}.uagb-social-share__outer-wrap .uagb-ss__source-icon{font-size:40px;width:40px;height:40px}.uagb-social-share__outer-wrap .uagb-ss__source-image{width:40px}@media (max-width: 976px){.uagb-social-share__layout-horizontal .uagb-ss__wrapper{margin-left:0;margin-right:0}}.uagb-social-share__layout-horizontal .wp-block-uagb-social-share-child.uagb-ss-repeater.uagb-ss__wrapper:first-child{margin-left:0 !important}.uagb-social-share__layout-horizontal .wp-block-uagb-social-share-child.uagb-ss-repeater.uagb-ss__wrapper:last-child{margin-right:0 !important}\n.wp-block-uagb-social-share .uagb-social-share__wrapper{text-decoration:none}.uagb-social-share__wrapper{box-shadow:none}.uagb-social-share__outer-wrap:not(.uagb-social-share__no-label) .uagb-social-share__source-wrap{margin-right:15px}.uagb-social-share__outer-wrap.uagb-social-share__icon-at-top .uagb-social-share__source-wrap{-ms-flex-item-align:flex-start;align-self:flex-start;margin-top:5px}\n.uagb-block-015f0124 .uagb-ss-repeater span.uagb-ss__link{color: #3a3a3a;}.uagb-block-015f0124 .uagb-ss-repeater a.uagb-ss__link{color: #3a3a3a;}.uagb-block-015f0124 .uagb-ss-repeater span.uagb-ss__link svg{fill: #3a3a3a;}.uagb-block-015f0124 .uagb-ss-repeater a.uagb-ss__link svg{fill: #3a3a3a;}.uagb-block-015f0124.uagb-social-share__layout-vertical .uagb-ss__wrapper{margin-left: 0;margin-right: 0;margin-top: 5px;margin-bottom: 5px;}.uagb-block-015f0124.uagb-social-share__layout-vertical .uagb-ss__link{padding: 10px;}.uagb-block-015f0124.uagb-social-share__layout-horizontal .uagb-ss__link{padding: 10px;}.uagb-block-015f0124.uagb-social-share__layout-horizontal .uagb-ss__wrapper{margin-left: 5px;margin-right: 5px;}.uagb-block-015f0124 .wp-block-uagb-social-share-child {border-radius: 0px;}.uagb-block-015f0124 .uagb-ss__source-wrap{width: 30px;}.uagb-block-015f0124 .uagb-ss__source-wrap svg{width: 30px;height: 30px;}.uagb-block-015f0124 .uagb-ss__source-image{width: 30px;}.uagb-block-015f0124 .uagb-ss__source-icon{width: 30px;height: 30px;font-size: 30px;}.uagb-block-015f0124.uagb-social-share__outer-wrap{justify-content: center;-webkit-box-pack: center;-ms-flex-pack: center;-webkit-box-align: center;-ms-flex-align: center;align-items: center;}.uagb-block-44317091.uagb-ss-repeater span.uagb-ss__link{color: #3b5998;}.uagb-block-44317091.uagb-ss-repeater a.uagb-ss__link{color: #3b5998;}.uagb-block-44317091.uagb-ss-repeater span.uagb-ss__link svg{fill: #3b5998;}.uagb-block-44317091.uagb-ss-repeater a.uagb-ss__link svg{fill: #3b5998;}.uagb-block-df693e43.uagb-ss-repeater span.uagb-ss__link{color: #55acee;}.uagb-block-df693e43.uagb-ss-repeater a.uagb-ss__link{color: #55acee;}.uagb-block-df693e43.uagb-ss-repeater span.uagb-ss__link svg{fill: #55acee;}.uagb-block-df693e43.uagb-ss-repeater a.uagb-ss__link svg{fill: #55acee;}.uagb-block-e0123642.uagb-ss-repeater span.uagb-ss__link{color: #bd081c;}.uagb-block-e0123642.uagb-ss-repeater a.uagb-ss__link{color: #bd081c;}.uagb-block-e0123642.uagb-ss-repeater span.uagb-ss__link svg{fill: #bd081c;}.uagb-block-e0123642.uagb-ss-repeater a.uagb-ss__link svg{fill: #bd081c;}.uagb-block-23521e42.uagb-ss-repeater span.uagb-ss__link{color: #0077b5;}.uagb-block-23521e42.uagb-ss-repeater a.uagb-ss__link{color: #0077b5;}.uagb-block-23521e42.uagb-ss-repeater span.uagb-ss__link svg{fill: #0077b5;}.uagb-block-23521e42.uagb-ss-repeater a.uagb-ss__link svg{fill: #0077b5;}@media only screen and (max-width: 976px) {.uagb-block-015f0124.uagb-social-share__layout-vertical .uagb-ss__wrapper{margin-left: 0;margin-right: 0;margin-top: 5px;margin-bottom: 5px;}.uagb-block-015f0124.uagb-social-share__layout-horizontal .uagb-ss__wrapper{margin-left: 5px;margin-right: 5px;}.uagb-block-015f0124.uagb-social-share__outer-wrap{justify-content: center;-webkit-box-pack: center;-ms-flex-pack: center;-webkit-box-align: center;-ms-flex-align: center;align-items: center;}}@media only screen and (max-width: 767px) {.uagb-block-015f0124.uagb-social-share__layout-vertical .uagb-ss__wrapper{margin-left: 0;margin-right: 0;margin-top: 5px;margin-bottom: 5px;}.uagb-block-015f0124.uagb-social-share__layout-horizontal .uagb-ss__wrapper{margin-left: 5px;margin-right: 5px;}.uagb-block-015f0124.uagb-social-share__outer-wrap{justify-content: center;-webkit-box-pack: center;-ms-flex-pack: center;-webkit-box-align: center;-ms-flex-align: center;align-items: center;}}.uagb-cta__outer-wrap .uagb-cta__content,.uagb-cta__outer-wrap a.uagb-cta__block-link span,.uagb-cta__outer-wrap .uagb-cta__content-right .uagb-cta__button-wrapper,.uagb-cta__outer-wrap .uagb-cta-typeof-button,.uagb-cta__outer-wrap .uagb-cta__content-right .uagb-cta__block-link,.uagb-cta__outer-wrap .uagb-cta-with-svg{display:inline-block}.uagb-cta__outer-wrap{display:flex;justify-content:space-between}.wp-block-uagb-call-to-action .uagb-cta__buttons{display:inline-flex}.wp-block-uagb-call-to-action .wp-block-button__link,.wp-block-uagb-call-to-action .ast-outline-button{fill:currentColor;justify-content:center}.uagb-cta__button-link-wrapper,.uagb-cta-second__button{display:inline-flex;align-items:center;word-break:keep-all;width:100%}.uagb-cta__title{padding:0;margin:0;display:block}.uagb-cta__content-right .uagb-cta__button-wrapper{float:right}.uagb-cta__link-wrapper.uagb-cta__block-link-style:empty{display:none}a.uagb-cta__block-link,.entry .entry-content a.uagb-cta__block-link,a.uagb-cta__block-link-wrap,.entry .entry-content a.uagb-cta__block-link-wrap{text-decoration:none}a.uagb-cta__block-link:hover,.entry .entry-content a.uagb-cta__block-link:hover,a.uagb-cta__block-link-wrap:hover,.entry .entry-content a.uagb-cta__block-link-wrap:hover .entry .entry-content a.uagb-cta__block-link:hover{color:inherit}.uagb-cta__content-right{text-align:right;justify-content:flex-end}.uagb-cta__left-right-wrap{width:100%;word-break:break-word}.uagb-cta__icon-position-below-title .uagb-cta__left-right-wrap{display:block;min-width:100%;width:100%}.uagb-cta__icon-position-left .uagb-cta__left-right-wrap,.uagb-cta__icon-position-right .uagb-cta__left-right-wrap{display:flex}.uagb-cta__icon-position-right .uagb-cta__left-right-wrap{justify-content:flex-end}.uagb-cta__block-link-icon-after{margin-left:5px;margin-right:0}.uagb-cta__block-link-icon-before{margin-left:0;margin-right:5px}.uagb-cta__block-link-icon,.uagb-cta__block svg{transition:all 200ms linear}.uagb-cta__block{position:relative}.uagb-cta-typeof-button{line-height:1;text-align:center}.uagb-cta__content-right .uagb-cta__button-link-wrapper,.uagb-cta__content-right .uagb-cta-second__button .uagb-cta__content-right .uagb-cta__block-link,.uagb-cta__content-right.uagb-cta__button-valign-middle .uagb-cta__left-right-wrap{display:flex;align-items:center}.uagb-cta__content-right .uagb-cta__button-link-wrapper,.uagb-cta__content-right .uagb-cta-second__button .uagb-cta__content-right .uagb-cta__block-link{justify-content:center}.uagb-cta__link-wrapper a{box-shadow:none;text-decoration:none}.uagb-cta__block,.uagb-cta__content,.uagb-cta__left-right-wrap{z-index:1}.uagb-cta__block-link{cursor:pointer}.uagb-cta__content-right .uagb-cta__block-link{float:right;padding:10px 14px}a.uagb-cta__block-link-wrap{color:inherit}.uagb-cta__content p:empty{display:none}.uagb-cta__button-type-none .uagb-cta__content{width:100%}.uagb-cta-with-svg{height:14px;width:14px;line-height:14px;vertical-align:middle}.uagb-cta__block svg{display:block;height:inherit;width:inherit}.uagb-cta__button-link-wrapper svg{width:20px;height:20px}.uagb-cta__align-button-after{margin-left:5px}.uagb-cta__align-button-before{margin-right:5px}.uagb-cta__block-link i{font-style:normal}a.uagb-cta__link-to-all{position:absolute;top:0;left:0;width:100%;height:100%;z-index:11}.wp-block-uagb-call-to-action{position:relative}.wp-block-uagb-call-to-action a.uagb-cta__link-to-all{position:absolute;top:0;left:0;width:100%;height:100%;z-index:11}@media only screen and (max-width: 976px){.uagb-cta__content-stacked-tablet,.uagb-cta__content-stacked-tablet .uagb-cta__left-right-wrap{flex-direction:column;text-align:center}.uagb-cta__content-stacked-tablet.uagb-cta__content-right .uagb-cta__button-wrapper{float:none;margin:0 auto}.uagb-cta__content-stacked-tablet .uagb-cta__left-right-wrap .uagb-cta__content{margin-left:0;margin-right:0}.uagb-cta__content-stacked-tablet.uagb-cta__content-right .uagb-cta__left-right-wrap .uagb-cta__content,.uagb-cta__content-stacked-tablet.uagb-cta__content-right .uagb-cta__left-right-wrap .uagb-cta__link-wrapper{width:100% !important}}@media screen and (max-width: 767px){.uagb-cta__content-stacked-mobile,.uagb-cta__content-stacked-mobile .uagb-cta__left-right-wrap{flex-direction:column;text-align:center}.uagb-cta__content-stacked-mobile.uagb-cta__content-right .uagb-cta__button-wrapper{float:none;margin:0 auto}.uagb-cta__content-stacked-mobile .uagb-cta__left-right-wrap .uagb-cta__content{margin-left:0;margin-right:0}.uagb-cta__content-stacked-mobile.uagb-cta__content-right .uagb-cta__left-right-wrap .uagb-cta__content,.uagb-cta__content-stacked-mobile.uagb-cta__content-right .uagb-cta__left-right-wrap .uagb-cta__link-wrapper{width:100% !important}}.uagb-cta__desc p:last-child{margin-bottom:0}\n#uagb-cta-block-.wp-block-uagb-call-to-action .uagb-cta__title{margin-bottom: 10px;}#uagb-cta-block-.wp-block-uagb-call-to-action .uagb-cta__desc{margin-bottom: 10px;}#uagb-cta-block- .uagb-cta__align-button-after{margin-left: 10px;}#uagb-cta-block- .uagb-cta__align-button-before{margin-right: 10px;}#uagb-cta-block-.wp-block-uagb-call-to-action a.uagb-cta__button-link-wrapper > svg{margin-left: 10px;}#uagb-cta-block-.wp-block-uagb-call-to-action a.uagb-cta-second__button > svg{margin-left: 10px;font-size: 14px;width: 14px;height: 14px;line-height: 14px;}#uagb-cta-block- .uagb-cta__content-wrap{text-align: left;}#uagb-cta-block- .uagb-cta__wrap{width: 70%;text-align: left;}#uagb-cta-block-.wp-block-uagb-call-to-action{text-align: left;}#uagb-cta-block- .uagb-cta__left-right-wrap .uagb-cta__content{margin-left: 0px;}#uagb-cta-block- .uagb-cta__buttons{column-gap: 15px;}#uagb-cta-block-.wp-block-uagb-call-to-action {display: flex;justify-content: space-between;}#uagb-cta-block- .uagb-cta__content-right .uagb-cta__left-right-wrap .uagb-cta__content{width: 70%;}#uagb-cta-block- .uagb-cta__content-right .uagb-cta__left-right-wrap .uagb-cta__link-wrapper{width: 30%;}#uagb-cta-block-.wp-block-uagb-call-to-action a.uagb-cta__button-link-wrapper {align-self: center;height: fit-content;margin-left: auto;}#uagb-cta-block-.wp-block-uagb-call-to-action  {flex-direction: row;align-items: center;}#uagb-cta-block-.wp-block-uagb-call-to-action.wp-block-button a.uagb-cta-second__button{align-self: center;height: fit-content;}#uagb-cta-block-.wp-block-uagb-call-to-action.wp-block-button a.uagb-cta-second__button:hover{background-color: !important;}#uagb-cta-block-.wp-block-uagb-call-to-action.wp-block-button a.uagb-cta-second__button:focus{background-color: !important;}#uagb-cta-block- .uagb-cta__button-wrapper a.uagb-cta-typeof-button{color: #333;border-style: solid;}#uagb-cta-block-.wp-block-uagb-call-to-action.wp-block-button .uagb-cta__buttons a.uagb-cta__button-link-wrapper.wp-block-button__link{border-style: solid;}#uagb-cta-block-.wp-block-uagb-call-to-action a.uagb-cta-second__button{text-transform: normal;text-decoration: none;font-size: 14px;}@media only screen and (max-width: 976px) {#uagb-cta-block-.wp-block-uagb-call-to-action.uagb-cta__content-stacked-tablet {display: inherit;}#uagb-cta-block-.uagb-cta__content-stacked-tablet .uagb-cta__wrap{width: 100%;}#uagb-cta-block- .uagb-cta__content-right .uagb-cta__left-right-wrap .uagb-cta__link-wrapper{width: 30%;}#uagb-cta-block- .uagb-cta__wrap{text-align: center;}#uagb-cta-block-.wp-block-uagb-call-to-action {flex-direction: column;align-items: center;}}@media only screen and (max-width: 767px) {#uagb-cta-block-.wp-block-uagb-call-to-action.uagb-cta__content-stacked-mobile {display: inherit;}#uagb-cta-block-.uagb-cta__content-stacked-mobile .uagb-cta__wrap{width: 100%;}#uagb-cta-block- .uagb-cta__buttons{justify-content: center;}#uagb-cta-block- .uagb-cta__content-right .uagb-cta__left-right-wrap .uagb-cta__link-wrapper{width: 30%;}#uagb-cta-block- .uagb-cta__wrap{text-align: center;}#uagb-cta-block-.wp-block-uagb-call-to-action {flex-direction: column;align-items: center;}}.uagb-icon-list__wrap{display:flex;align-items:flex-start;justify-content:flex-start}.wp-block-uagb-icon-list-child{padding:0;transition:all 0.2s;display:inline-flex;color:#3a3a3a;align-items:center;text-decoration:none;box-shadow:none}.wp-block-uagb-icon-list-child span.uagb-icon-list__source-wrap{display:block;align-items:center}.uagb-icon-list__source-wrap svg{display:block}.uagb-icon-list__source-image{width:40px}.uagb-icon-list__outer-wrap .uagb-icon-list__content-wrap{color:#3a3a3a;display:flex;align-items:center}\n.wp-block-uagb-icon-list-child{position:relative}.wp-block-uagb-icon-list-child>a{position:absolute;top:0;left:0;width:100%;height:100%}img.uagb-icon-list__source-image{max-width:unset}.wp-block-uagb-icon-list-child .uagb-icon-list__label{word-break:break-word}\n.wp-block-uagb-icon-list.uagb-block-f606f41a .uagb-icon-list__source-image{width: 16px;}.wp-block-uagb-icon-list.uagb-block-f606f41a .wp-block-uagb-icon-list-child .uagb-icon-list__source-wrap svg{width: 16px;height: 16px;font-size: 16px;}.wp-block-uagb-icon-list.uagb-block-f606f41a .wp-block-uagb-icon-list-child .uagb-icon-list__source-wrap{padding: 0px;border-radius: 0px;border-width: 0px;align-self: center;}.wp-block-uagb-icon-list.uagb-block-f606f41a .wp-block-uagb-icon-list-child .uagb-icon-list__label{text-decoration: !important;line-height: em;}.wp-block-uagb-icon-list.uagb-block-f606f41a .uagb-icon-list__wrap{display: flex;flex-direction: column;justify-content: center;-webkit-box-pack: center;-ms-flex-pack: center;-webkit-box-align: flex-start;-ms-flex-align: flex-start;align-items: flex-start;}.wp-block-uagb-icon-list.uagb-block-f606f41a .uagb-icon-list__label{text-align: left;}.wp-block-uagb-icon-list.uagb-block-f606f41a .wp-block-uagb-icon-list-child{text-decoration: !important;line-height: em;}.wp-block-uagb-icon-list.uagb-block-f606f41a.wp-block-uagb-icon-list .wp-block-uagb-icon-list-child{margin-left: 0;margin-right: 0;margin-bottom: 10px;}.wp-block-uagb-icon-list.uagb-block-f606f41a .uagb-icon-list__source-wrap{margin-right: 15px;}.uagb-block-ddf54d80.wp-block-uagb-icon-list-child .uagb-icon-list__source-wrap{background:  !important;border-color:  !important;}.uagb-block-ddf54d80.wp-block-uagb-icon-list-child:hover .uagb-icon-list__source-wrap{background:  !important;border-color:  !important;}.uagb-block-b45e4180.wp-block-uagb-icon-list-child .uagb-icon-list__source-wrap{background:  !important;border-color:  !important;}.uagb-block-b45e4180.wp-block-uagb-icon-list-child:hover .uagb-icon-list__source-wrap{background:  !important;border-color:  !important;}.uagb-block-6962245c.wp-block-uagb-icon-list-child .uagb-icon-list__source-wrap{background:  !important;border-color:  !important;}.uagb-block-6962245c.wp-block-uagb-icon-list-child:hover .uagb-icon-list__source-wrap{background:  !important;border-color:  !important;}@media only screen and (max-width: 976px) {.wp-block-uagb-icon-list.uagb-block-f606f41a .uagb-icon-list__source-image{width: 16px;}.wp-block-uagb-icon-list.uagb-block-f606f41a .wp-block-uagb-icon-list-child .uagb-icon-list__source-wrap svg{width: 16px;height: 16px;font-size: 16px;}.wp-block-uagb-icon-list.uagb-block-f606f41a .wp-block-uagb-icon-list-child .uagb-icon-list__source-wrap {padding: 0px;border-width: 0px;align-self: center;}.wp-block-uagb-icon-list.uagb-block-f606f41a .uagb-icon-list__wrap{display: flex;flex-direction: column;justify-content: center;-webkit-box-pack: center;-ms-flex-pack: center;-webkit-box-align: flex-start;-ms-flex-align: flex-start;align-items: flex-start;}.wp-block-uagb-icon-list.uagb-block-f606f41a.wp-block-uagb-icon-list .wp-block-uagb-icon-list-child{margin-left: 0;margin-right: 0;margin-bottom: 10px;}}@media only screen and (max-width: 767px) {.wp-block-uagb-icon-list.uagb-block-f606f41a .uagb-icon-list__source-image{width: 16px;}.wp-block-uagb-icon-list.uagb-block-f606f41a .wp-block-uagb-icon-list-child .uagb-icon-list__source-wrap svg{width: 16px;height: 16px;font-size: 16px;}.wp-block-uagb-icon-list.uagb-block-f606f41a .wp-block-uagb-icon-list-child .uagb-icon-list__source-wrap{padding: 0px;border-width: 0px;align-self: center;}.wp-block-uagb-icon-list.uagb-block-f606f41a .uagb-icon-list__wrap{display: flex;flex-direction: column;justify-content: center;-webkit-box-pack: center;-ms-flex-pack: center;-webkit-box-align: flex-start;-ms-flex-align: flex-start;align-items: flex-start;}.wp-block-uagb-icon-list.uagb-block-f606f41a.wp-block-uagb-icon-list .wp-block-uagb-icon-list-child{margin-left: 0;margin-right: 0;margin-bottom: 10px;}}.wp-block-uagb-container{display:flex;position:relative;box-sizing:border-box;transition-property:box-shadow;transition-duration:0.2s;transition-timing-function:ease}.wp-block-uagb-container .spectra-container-link-overlay{bottom:0;left:0;position:absolute;right:0;top:0;z-index:10}.wp-block-uagb-container.uagb-is-root-container{margin-left:auto;margin-right:auto}.wp-block-uagb-container.alignfull.uagb-is-root-container .uagb-container-inner-blocks-wrap{display:flex;position:relative;box-sizing:border-box;margin-left:auto !important;margin-right:auto !important}.wp-block-uagb-container .wp-block-uagb-blockquote,.wp-block-uagb-container .wp-block-spectra-pro-login,.wp-block-uagb-container .wp-block-spectra-pro-register{margin:unset}.wp-block-uagb-container .uagb-container__video-wrap{height:100%;width:100%;top:0;left:0;position:absolute;overflow:hidden;-webkit-transition:opacity 1s;-o-transition:opacity 1s;transition:opacity 1s}.wp-block-uagb-container .uagb-container__video-wrap video{max-width:100%;width:100%;height:100%;margin:0;line-height:1;border:none;display:inline-block;vertical-align:baseline;-o-object-fit:cover;object-fit:cover;background-size:cover}.wp-block-uagb-container.uagb-layout-grid{display:grid;width:100%}.wp-block-uagb-container.uagb-layout-grid>.uagb-container-inner-blocks-wrap{display:inherit;width:inherit}.wp-block-uagb-container.uagb-layout-grid>.uagb-container-inner-blocks-wrap>.wp-block-uagb-container{max-width:unset !important;width:unset !important}.wp-block-uagb-container.uagb-layout-grid>.wp-block-uagb-container{max-width:unset !important;width:unset !important}.wp-block-uagb-container.uagb-layout-grid.uagb-is-root-container{margin-left:auto;margin-right:auto}.wp-block-uagb-container.uagb-layout-grid.uagb-is-root-container>.wp-block-uagb-container{max-width:unset !important;width:unset !important}.wp-block-uagb-container.uagb-layout-grid.alignwide.uagb-is-root-container{margin-left:auto;margin-right:auto}.wp-block-uagb-container.uagb-layout-grid.alignfull.uagb-is-root-container .uagb-container-inner-blocks-wrap{display:inherit;position:relative;box-sizing:border-box;margin-left:auto !important;margin-right:auto !important}body .wp-block-uagb-container>.uagb-container-inner-blocks-wrap>*:not(.wp-block-uagb-container):not(.wp-block-uagb-column):not(.wp-block-uagb-container):not(.wp-block-uagb-section):not(.uagb-container__shape):not(.uagb-container__video-wrap):not(.wp-block-spectra-pro-register):not(.wp-block-spectra-pro-login):not(.uagb-slider-container):not(.spectra-image-gallery__control-lightbox):not(.wp-block-uagb-info-box),body .wp-block-uagb-container>.uagb-container-inner-blocks-wrap,body .wp-block-uagb-container>*:not(.wp-block-uagb-container):not(.wp-block-uagb-column):not(.wp-block-uagb-container):not(.wp-block-uagb-section):not(.uagb-container__shape):not(.uagb-container__video-wrap):not(.wp-block-spectra-pro-register):not(.wp-block-spectra-pro-login):not(.uagb-slider-container):not(.spectra-container-link-overlay):not(.spectra-image-gallery__control-lightbox):not(.wp-block-uagb-lottie):not(.uagb-faq__outer-wrap){min-width:unset !important;width:100%;position:relative}body .ast-container .wp-block-uagb-container>.uagb-container-inner-blocks-wrap>.wp-block-uagb-container>ul,body .ast-container .wp-block-uagb-container>.uagb-container-inner-blocks-wrap>.wp-block-uagb-container ol,body .ast-container .wp-block-uagb-container>.uagb-container-inner-blocks-wrap>ul,body .ast-container .wp-block-uagb-container>.uagb-container-inner-blocks-wrap ol{max-width:-webkit-fill-available;margin-block-start:0;margin-block-end:0;margin-left:20px}.ast-plain-container .editor-styles-wrapper .block-editor-block-list__layout.is-root-container .uagb-is-root-container.wp-block-uagb-container.alignwide{margin-left:auto;margin-right:auto}.uagb-container__shape{overflow:hidden;position:absolute;left:0;width:100%;line-height:0;direction:ltr}.uagb-container__shape-top{top:-3px}.uagb-container__shape-bottom{bottom:-3px}.uagb-container__shape.uagb-container__invert.uagb-container__shape-bottom,.uagb-container__shape.uagb-container__invert.uagb-container__shape-top{-webkit-transform:rotate(180deg);-ms-transform:rotate(180deg);transform:rotate(180deg)}.uagb-container__shape.uagb-container__shape-flip svg{transform:translateX(-50%) rotateY(180deg)}.uagb-container__shape svg{display:block;width:-webkit-calc(100% + 1.3px);width:calc(100% + 1.3px);position:relative;left:50%;-webkit-transform:translateX(-50%);-ms-transform:translateX(-50%);transform:translateX(-50%)}.uagb-container__shape .uagb-container__shape-fill{-webkit-transform-origin:center;-ms-transform-origin:center;transform-origin:center;-webkit-transform:rotateY(0deg);transform:rotateY(0deg)}.uagb-container__shape.uagb-container__shape-above-content{z-index:9;pointer-events:none}.nv-single-page-wrap .nv-content-wrap.entry-content .wp-block-uagb-container.alignfull{margin-left:calc(50% - 50vw);margin-right:calc(50% - 50vw)}@media only screen and (max-width: 767px){.wp-block-uagb-container .wp-block-uagb-advanced-heading{width:-webkit-fill-available}}.wp-block-uagb-image--align-none{justify-content:center}\n.wp-block-uagb-container.uagb-block-845e6da6 .uagb-container__shape-top svg{width: calc( 100% + 1.3px );}.wp-block-uagb-container.uagb-block-845e6da6 .uagb-container__shape.uagb-container__shape-top .uagb-container__shape-fill{fill: rgba(51,51,51,1);}.wp-block-uagb-container.uagb-block-845e6da6 .uagb-container__shape-bottom svg{width: calc( 100% + 1.3px );}.wp-block-uagb-container.uagb-block-845e6da6 .uagb-container__shape.uagb-container__shape-bottom .uagb-container__shape-fill{fill: rgba(51,51,51,1);}.wp-block-uagb-container.uagb-block-845e6da6 .uagb-container__video-wrap video{opacity: 1;}.wp-block-uagb-container.uagb-is-root-container .uagb-block-845e6da6{max-width: 100%;width: 100%;}.wp-block-uagb-container.uagb-is-root-container.alignfull.uagb-block-845e6da6 > .uagb-container-inner-blocks-wrap{--inner-content-custom-width: min( 100%, 1200px);max-width: var(--inner-content-custom-width);width: 100%;flex-direction: column;align-items: center;justify-content: center;flex-wrap: nowrap;row-gap: 20px;column-gap: 20px;}.wp-block-uagb-container.uagb-block-845e6da6{box-shadow: 0px 0px   #00000070 ;padding-top: 10px;padding-bottom: 10px;padding-left: 10px;padding-right: 10px;margin-top:  !important;margin-bottom:  !important;overflow: visible;order: initial;border-color: inherit;row-gap: 20px;column-gap: 20px;}@media only screen and (max-width: 976px) {.wp-block-uagb-container.uagb-is-root-container .uagb-block-845e6da6{width: 100%;}.wp-block-uagb-container.uagb-is-root-container.alignfull.uagb-block-845e6da6 > .uagb-container-inner-blocks-wrap{--inner-content-custom-width: min( 100%, 1024px);max-width: var(--inner-content-custom-width);width: 100%;}.wp-block-uagb-container.uagb-block-845e6da6{padding-top: 10px;padding-bottom: 10px;padding-left: 10px;padding-right: 10px;margin-top:  !important;margin-bottom:  !important;order: initial;}}@media only screen and (max-width: 767px) {.wp-block-uagb-container.uagb-is-root-container .uagb-block-845e6da6{max-width: 100%;width: 100%;}.wp-block-uagb-container.uagb-is-root-container.alignfull.uagb-block-845e6da6 > .uagb-container-inner-blocks-wrap{--inner-content-custom-width: min( 100%, 767px);max-width: var(--inner-content-custom-width);width: 100%;flex-wrap: wrap;}.wp-block-uagb-container.uagb-block-845e6da6{padding-top: 10px;padding-bottom: 10px;padding-left: 10px;padding-right: 10px;margin-top:  !important;margin-bottom:  !important;order: initial;}}.wp-block-uagb-icon svg{width:30px}.uagb-icon-wrapper .uagb-svg-wrapper{transition:box-shadow 0.2s ease}\n .uagb-block-2b67c985.uagb-icon-wrapper{text-align: center;} .uagb-block-2b67c985.uagb-icon-wrapper .uagb-svg-wrapper a{display: contents;} .uagb-block-2b67c985.uagb-icon-wrapper svg{width: 40px;height: 40px;transform: rotate(0deg);box-sizing: content-box;fill: #333;filter: drop-shadow( 0px 0px 0px #00000070 );} .uagb-block-2b67c985.uagb-icon-wrapper .uagb-svg-wrapper{display: inline-flex;padding-top: 5px;padding-right: 5px;padding-bottom: 5px;padding-left: 5px;border-style: default;box-shadow: 0px 0px 0 #00000070 ;} .uagb-block-2b67c985.uagb-icon-wrapper .uagb-svg-wrapper:hover{box-shadow: 0px 0px 0 #00000070 ;} .uagb-block-2b67c985.uagb-icon-wrapper .uagb-svg-wrapper:focus-visible{box-shadow: 0px 0px 0 #00000070 ;}@media only screen and (max-width: 976px) { .uagb-block-2b67c985.uagb-icon-wrapper .uagb-svg-wrapper{display: inline-flex;}}@media only screen and (max-width: 767px) { .uagb-block-2b67c985.uagb-icon-wrapper .uagb-svg-wrapper{display: inline-flex;}} .uagb-block-3c223d05.uagb-icon-wrapper{text-align: center;} .uagb-block-3c223d05.uagb-icon-wrapper .uagb-svg-wrapper a{display: contents;} .uagb-block-3c223d05.uagb-icon-wrapper svg{width: 40px;height: 40px;transform: rotate(0deg);box-sizing: content-box;fill: #333;filter: drop-shadow( 0px 0px 0px #00000070 );} .uagb-block-3c223d05.uagb-icon-wrapper .uagb-svg-wrapper{display: inline-flex;padding-top: 5px;padding-right: 5px;padding-bottom: 5px;padding-left: 5px;border-style: default;box-shadow: 0px 0px 0 #00000070 ;} .uagb-block-3c223d05.uagb-icon-wrapper .uagb-svg-wrapper:hover{box-shadow: 0px 0px 0 #00000070 ;} .uagb-block-3c223d05.uagb-icon-wrapper .uagb-svg-wrapper:focus-visible{box-shadow: 0px 0px 0 #00000070 ;}@media only screen and (max-width: 976px) { .uagb-block-3c223d05.uagb-icon-wrapper .uagb-svg-wrapper{display: inline-flex;}}@media only screen and (max-width: 767px) { .uagb-block-3c223d05.uagb-icon-wrapper .uagb-svg-wrapper{display: inline-flex;}}.wp-block-uagb-container.uagb-block-e5b2e3b1 .uagb-container__shape-top svg{width: calc( 100% + 1.3px );}.wp-block-uagb-container.uagb-block-e5b2e3b1 .uagb-container__shape.uagb-container__shape-top .uagb-container__shape-fill{fill: rgba(51,51,51,1);}.wp-block-uagb-container.uagb-block-e5b2e3b1 .uagb-container__shape-bottom svg{width: calc( 100% + 1.3px );}.wp-block-uagb-container.uagb-block-e5b2e3b1 .uagb-container__shape.uagb-container__shape-bottom .uagb-container__shape-fill{fill: rgba(51,51,51,1);}.wp-block-uagb-container.uagb-block-e5b2e3b1 .uagb-container__video-wrap video{opacity: 1;}.wp-block-uagb-container.uagb-is-root-container .uagb-block-e5b2e3b1{max-width: 100%;width: 100%;}.wp-block-uagb-container.uagb-is-root-container.alignfull.uagb-block-e5b2e3b1 > .uagb-container-inner-blocks-wrap{--inner-content-custom-width: min( 100%, 1200px);max-width: var(--inner-content-custom-width);width: 100%;flex-direction: column;align-items: center;justify-content: center;flex-wrap: nowrap;row-gap: 20px;column-gap: 20px;}.wp-block-uagb-container.uagb-block-e5b2e3b1{box-shadow: 0px 0px   #00000070 ;padding-top: 10px;padding-bottom: 10px;padding-left: 10px;padding-right: 10px;margin-top:  !important;margin-bottom:  !important;overflow: visible;order: initial;border-color: inherit;row-gap: 20px;column-gap: 20px;}@media only screen and (max-width: 976px) {.wp-block-uagb-container.uagb-is-root-container .uagb-block-e5b2e3b1{width: 100%;}.wp-block-uagb-container.uagb-is-root-container.alignfull.uagb-block-e5b2e3b1 > .uagb-container-inner-blocks-wrap{--inner-content-custom-width: min( 100%, 1024px);max-width: var(--inner-content-custom-width);width: 100%;}.wp-block-uagb-container.uagb-block-e5b2e3b1{padding-top: 10px;padding-bottom: 10px;padding-left: 10px;padding-right: 10px;margin-top:  !important;margin-bottom:  !important;order: initial;}}@media only screen and (max-width: 767px) {.wp-block-uagb-container.uagb-is-root-container .uagb-block-e5b2e3b1{max-width: 100%;width: 100%;}.wp-block-uagb-container.uagb-is-root-container.alignfull.uagb-block-e5b2e3b1 > .uagb-container-inner-blocks-wrap{--inner-content-custom-width: min( 100%, 767px);max-width: var(--inner-content-custom-width);width: 100%;flex-wrap: wrap;}.wp-block-uagb-container.uagb-block-e5b2e3b1{padding-top: 10px;padding-bottom: 10px;padding-left: 10px;padding-right: 10px;margin-top:  !important;margin-bottom:  !important;order: initial;}}\";s:2:\"js\";s:2018:\"document.addEventListener(\"DOMContentLoaded\", function(){ var ssLinksParent = document.querySelector( '.uagb-block-015f0124' );\nssLinksParent?.addEventListener( 'keyup', function ( e ) {\nvar link = e.target.closest( '.uagb-ss__link' );\nif ( link && e.keyCode === 13 ) {\n\thandleSocialLinkClick( link );\n}\n});\n\nssLinksParent?.addEventListener( 'click', function ( e ) {\nvar link = e.target.closest( '.uagb-ss__link' );\nif ( link ) {\n\thandleSocialLinkClick( link );\n}\n});\n\nfunction handleSocialLinkClick( link ) {\nvar social_url = link.dataset.href;\nvar target = \"\";\nif ( social_url == \"mailto:?body=\" ) {\n\ttarget = \"_self\";\n}\nvar request_url = \"\";\nif ( social_url.indexOf(\"\/pin\/create\/link\/?url=\") !== -1 ) {\n\trequest_url = social_url + encodeURIComponent( window.location.href ) + \"&media=\" + 'https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/PCB-Stackup-Design-.webp';\n} else {\n\trequest_url = social_url + encodeURIComponent( window.location.href );\n}\nwindow.open( request_url, target );\n}\n\t\t\t\twindow.addEventListener( 'DOMContentLoaded', () => {\n\t\t\t\t\tconst blockScope = document.querySelector( '.uagb-block-2b67c985' );\n\t\t\t\t\tif ( ! blockScope ) {\n\t\t\t\t\t\treturn;\n\t\t\t\t\t}\n\n\t\t\t\t\tconst anchorElement = blockScope.querySelector('a');\n\t\t\t\t\tif (!anchorElement) {\n\t\t\t\t\t\treturn;\n\t\t\t\t\t} \n\n\t\t\t\t\t \n\t\t\t\t\tblockScope.addEventListener('keydown', (event) => {\n\t\t\t\t\t\tif ( 13 === event.keyCode || 32 === event.keyCode ) {\n\t\t\t\t\t\t\tevent.preventDefault();\n\t\t\t\t\t\t\t \n\t\t\t\t\t\t\tanchorElement.click();\t\n\t\t\t\t\t\t}\n\t\t\t\t\t} );\n\t\t\t\t} );\n\t\t\t\t\t\t\twindow.addEventListener( 'DOMContentLoaded', () => {\n\t\t\t\t\tconst blockScope = document.querySelector( '.uagb-block-3c223d05' );\n\t\t\t\t\tif ( ! blockScope ) {\n\t\t\t\t\t\treturn;\n\t\t\t\t\t}\n\n\t\t\t\t\tconst anchorElement = blockScope.querySelector('a');\n\t\t\t\t\tif (!anchorElement) {\n\t\t\t\t\t\treturn;\n\t\t\t\t\t} \n\n\t\t\t\t\t \n\t\t\t\t\tblockScope.addEventListener('keydown', (event) => {\n\t\t\t\t\t\tif ( 13 === event.keyCode || 32 === event.keyCode ) {\n\t\t\t\t\t\t\tevent.preventDefault();\n\t\t\t\t\t\t\t \n\t\t\t\t\t\t\tanchorElement.click();\t\n\t\t\t\t\t\t}\n\t\t\t\t\t} );\n\t\t\t\t} );\n\t\t\t });\";s:18:\"current_block_list\";a:21:{i:0;s:12:\"core\/heading\";i:1;s:14:\"core\/paragraph\";i:2;s:9:\"core\/list\";i:3;s:14:\"core\/list-item\";i:4;s:10:\"core\/image\";i:5;s:11:\"core\/search\";i:6;s:10:\"core\/group\";i:7;s:17:\"core\/latest-posts\";i:8;s:20:\"core\/latest-comments\";i:9;s:13:\"core\/archives\";i:10;s:15:\"core\/categories\";i:11;s:10:\"core\/embed\";i:12;s:17:\"uagb\/social-share\";i:13;s:23:\"uagb\/social-share-child\";i:14;s:19:\"uagb\/call-to-action\";i:15;s:14:\"uagb\/icon-list\";i:16;s:20:\"uagb\/icon-list-child\";i:17;s:14:\"uagb\/container\";i:18;s:9:\"uagb\/icon\";i:19;s:17:\"core\/social-links\";i:20;s:16:\"core\/social-link\";}s:8:\"uag_flag\";b:1;s:11:\"uag_version\";s:10:\"1776063796\";s:6:\"gfonts\";a:0:{}s:10:\"gfonts_url\";s:0:\"\";s:12:\"gfonts_files\";a:0:{}s:14:\"uag_faq_layout\";b:0;}"],"_elementor_page_assets":["a:0:{}"],"_uag_css_file_name":["uag-css-4666.css"],"_uag_js_file_name":["uag-js-4666.js"]},"uagb_featured_image_src":{"full":["https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/PCB-Stackup-Design-.webp",800,450,false],"thumbnail":["https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/PCB-Stackup-Design--150x150.webp",150,150,true],"medium":["https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/PCB-Stackup-Design--300x169.webp",300,169,true],"medium_large":["https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/PCB-Stackup-Design--768x432.webp",768,432,true],"large":["https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/PCB-Stackup-Design-.webp",800,450,false],"1536x1536":["https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/PCB-Stackup-Design-.webp",800,450,false],"2048x2048":["https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/PCB-Stackup-Design-.webp",800,450,false],"trp-custom-language-flag":["https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/PCB-Stackup-Design--18x10.webp",18,10,true]},"uagb_author_info":{"display_name":"Philifast","author_link":"https:\/\/flj-pcb.com\/fi\/author\/2475017442jygmail-com\/"},"uagb_comment_info":0,"uagb_excerpt":"1. Core Principles of Stackup Design Overall, stackup design must follow two rules: Below are example stackups from two-layer boards [&hellip;]","_links":{"self":[{"href":"https:\/\/flj-pcb.com\/fi\/wp-json\/wp\/v2\/posts\/4666","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/flj-pcb.com\/fi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/flj-pcb.com\/fi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/flj-pcb.com\/fi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/flj-pcb.com\/fi\/wp-json\/wp\/v2\/comments?post=4666"}],"version-history":[{"count":1,"href":"https:\/\/flj-pcb.com\/fi\/wp-json\/wp\/v2\/posts\/4666\/revisions"}],"predecessor-version":[{"id":4671,"href":"https:\/\/flj-pcb.com\/fi\/wp-json\/wp\/v2\/posts\/4666\/revisions\/4671"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/flj-pcb.com\/fi\/wp-json\/wp\/v2\/media\/4669"}],"wp:attachment":[{"href":"https:\/\/flj-pcb.com\/fi\/wp-json\/wp\/v2\/media?parent=4666"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/flj-pcb.com\/fi\/wp-json\/wp\/v2\/categories?post=4666"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/flj-pcb.com\/fi\/wp-json\/wp\/v2\/tags?post=4666"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}