{"id":79,"date":"2026-10-25T21:16:01","date_gmt":"2026-10-25T13:16:01","guid":{"rendered":"https:\/\/aluminiumnitride.com\/?p=79"},"modified":"2026-10-25T21:16:01","modified_gmt":"2026-10-25T13:16:01","slug":"miert-veszitik-el-az-aluminium-nitrid-burkolatok-a-hoelvezeto-kepesseguket-ha-nedvessegnek-vannak-kiteve","status":"publish","type":"post","link":"https:\/\/aluminiumnitride.com\/hu\/miert-veszitik-el-az-aluminium-nitrid-burkolatok-a-hoelvezeto-kepesseguket-ha-nedvessegnek-vannak-kiteve\/","title":{"rendered":"Mi\u00e9rt vesz\u00edtik el az alum\u00ednium-nitrid csomagok a h\u0151elvezet\u0151 k\u00e9pess\u00e9g\u00fcket, ha nedvess\u00e9gnek vannak kit\u00e9ve?"},"content":{"rendered":"<p dir=\"auto\"><strong>Mi\u00e9rt vesz\u00edtik el az alum\u00ednium-nitrid csomagok a h\u0151elvezet\u0151 k\u00e9pess\u00e9g\u00fcket, ha nedvess\u00e9gnek vannak kit\u00e9ve?<\/strong><\/p>\n<p dir=\"auto\">Tizenk\u00e9t \u00e9vnyi, alum\u00ednium-nitrid hordoz\u00f3kkal v\u00e9gzett munka ut\u00e1n a teljes\u00edtm\u00e9ny- \u00e9s RF-csomagol\u00e1sok ter\u00fclet\u00e9n egy \u00e1lland\u00f3 probl\u00e9ma a m\u00e9rt h\u0151ellen\u00e1ll\u00e1s fokozatos emelked\u00e9se, miut\u00e1n az eszk\u00f6z\u00f6ket nedves k\u00f6rnyezetben t\u00e1rolt\u00e1k vagy \u00fczemeltett\u00e9k. Ezt a n\u00f6veked\u00e9st nem lehet kiz\u00e1r\u00f3lag a forraszt\u00e1si f\u00e1rad\u00e1ssal vagy a h\u0171t\u0151borda \u00e9rintkez\u00e9s\u00e9vel magyar\u00e1zni. Az alum\u00ednium-nitrid reag\u00e1l a nedvess\u00e9ggel, \u00e9s a reakci\u00f3term\u00e9kek n\u00f6velhetik a h\u0151\u00e1tad\u00e1si hat\u00e1rellen\u00e1ll\u00e1st a szabad fel\u00fcleteken \u00e9s az \u00e9rintkez\u00e9si fel\u00fcleteken, m\u00e9g akkor is, ha a ker\u00e1mia t\u00e9rfogati vezet\u0151k\u00e9pess\u00e9ge magas marad.<\/p>\n<p dir=\"auto\"><!--more--><\/p>\n<p dir=\"auto\">A s\u0171r\u0171 AlN viszonylag stabil, azonban a marad\u00e9k nyitott porozit\u00e1s vagy a nem teljesen zsugor\u00edtott szemcsehat\u00e1rok lehet\u0151v\u00e9 teszik a v\u00edzg\u0151z sz\u00e1m\u00e1ra, hogy eljusson a reakt\u00edv fel\u00fcletekhez. A reakci\u00f3 sor\u00e1n alum\u00ednium-hidroxidok \u00e9s amm\u00f3nia keletkeznek; a hidroxidr\u00e9teg gyenge h\u0151vezet\u0151, \u00e9s ronthatja a k\u00e9s\u0151bbi f\u00e9mbevonat tapad\u00e1s\u00e1t is. Por vagy alacsony s\u0171r\u0171s\u00e9g\u0171 anyag eset\u00e9n a reakci\u00f3 gyorsan zajlik. Teljesen s\u0171r\u0171 hordoz\u00f3k eset\u00e9ben a hat\u00e1s lassabb \u00e9s lokaliz\u00e1lt, de 60 % feletti relat\u00edv p\u00e1ratartalom mellett hetekig tart\u00f3 kitetts\u00e9g ut\u00e1n is m\u00e9rhet\u0151. Mivel a csomag h\u0151ellen\u00e1ll\u00e1sa a t\u00e9rfogati h\u0151vezet\u00e9si \u00e9s a hat\u00e1rfel\u00fcleti ellen\u00e1ll\u00e1sok \u00f6sszege, m\u00e9g egy n\u00e9h\u00e1ny mikrom\u00e9teres v\u00e9kony reakci\u00f3r\u00e9teg is t\u00f6bb tized fokot adhat hozz\u00e1 wattonk\u00e9nt nagy h\u0151\u00e1raml\u00e1s mellett.<\/p>\n<p dir=\"auto\">Egy ellen\u0151rz\u00f6tt expoz\u00edci\u00f3s k\u00eds\u00e9rlet sor\u00e1n 0,5 mm vastags\u00e1g\u00fa, 185 W\/m\u00b7K m\u00e9rt t\u00e9rfogati vezet\u0151k\u00e9pess\u00e9g\u0171 AlN hordoz\u00f3kat f\u00e9mbevonattal l\u00e1ttak el, majd teljes\u00edtm\u00e9nymodulokk\u00e1 szerelt\u00e9k \u00f6ssze. A modulok fel\u00e9t 500 \u00f3r\u00e1n \u00e1t 85 \u00b0C-on \u00e9s 85 % relat\u00edv p\u00e1ratartalom mellett t\u00e1rolt\u00e1k; a m\u00e1sik fel\u00e9t ugyanazon a h\u0151m\u00e9rs\u00e9kleten sz\u00e1raz nitrog\u00e9nben tartott\u00e1k. Az expoz\u00edci\u00f3t k\u00f6vet\u0151en a 40 W-os terhel\u00e9s mellett m\u00e9rt csatlakoz\u00e1s\u2013h\u00e1z k\u00f6z\u00f6tti h\u0151ellen\u00e1ll\u00e1s a nedves k\u00f6rnyezetben t\u00e1rolt modulokn\u00e1l 0,18 \u00b0C\/W-kal emelkedett, m\u00edg a sz\u00e1raz k\u00f6rnyezetben t\u00e1rolt modulokn\u00e1l v\u00e1ltozatlan maradt. A keresztmetszetek a nedves mint\u00e1kon k\u00f6r\u00fclbel\u00fcl 2\u20134 \u00b5m vastags\u00e1g\u00fa, folytonoss\u00e1g\u00e1t vesztett fel\u00fcleti r\u00e9teget mutattak. A k\u00eds\u00e9rleti, nem f\u00e9mbevonat\u00fa nyersdarabokon v\u00e9gzett l\u00e9zer-flash m\u00e9r\u00e9sek meger\u0151s\u00edtett\u00e9k, hogy a t\u00e9rfogati vezet\u0151k\u00e9pess\u00e9g v\u00e1ltozatlan maradt, \u00edgy a hozz\u00e1ad\u00f3dott ellen\u00e1ll\u00e1s egy\u00e9rtelm\u0171en a fel\u00fcleti reakci\u00f3term\u00e9keknek tulajdon\u00edthat\u00f3. A nagyobb s\u0171r\u0171s\u00e9gre (0,2 % alatti nyitott porozit\u00e1s) szinterezett modulokn\u00e1l ugyanazon nedves expoz\u00edci\u00f3 mellett k\u00f6r\u00fclbel\u00fcl feleakkora ellen\u00e1ll\u00e1s-n\u00f6veked\u00e9s volt megfigyelhet\u0151.<\/p>\n<p dir=\"auto\">A gyakorlati szempontb\u00f3l teh\u00e1t a s\u0171r\u0171s\u00edt\u00e9s \u00e9s a fel\u00fcletv\u00e9delem a legfontosabb. A marad\u00e9k porozit\u00e1snak olyan alacsonynak kell lennie, hogy a nedvess\u00e9g ne juthasson be a szemcs\u00e9k belsej\u00e9be; egy v\u00e9kony, folytonos v\u00e9d\u0151bevonat vagy f\u00e9mbevonat, amely teljes m\u00e9rt\u00e9kben lefedi a szabad fel\u00fcleteket, tov\u00e1bb korl\u00e1tozza a reakci\u00f3t. Az alum\u00ednium-nitrid hidrol\u00edzis\u00e9nek nedvess\u00e9g\u00e9rz\u00e9kenys\u00e9ge tekintet\u00e9ben a relev\u00e1ns folyamatv\u00e1ltoz\u00f3k a szinterel\u00e9si s\u0171r\u0171s\u00e9g, a marad\u00e9k nyitott porozit\u00e1s, valamint az esetleges ut\u00f3lagos bevonat integrit\u00e1sa. Az AlN hordoz\u00f3 nedves k\u00f6r\u00fclm\u00e9nyek k\u00f6z\u00f6tti h\u0151ciklus-megb\u00edzhat\u00f3s\u00e1g\u00e1t nem csup\u00e1n a t\u00f6meges vezet\u0151k\u00e9pess\u00e9g m\u00e9r\u00e9s\u00e9vel, hanem a gyors\u00edtott p\u00e1ratartalom-terhel\u00e9s el\u0151tti \u00e9s ut\u00e1ni csomag h\u0151ellen\u00e1ll\u00e1s\u00e1nak m\u00e9r\u00e9s\u00e9vel is igazolj\u00e1k. Amikor a h\u0151ellen\u00e1ll\u00e1s a nedves leveg\u0151ben t\u00f6rt\u00e9n\u0151 t\u00e1rol\u00e1s vagy terepi expoz\u00edci\u00f3 ut\u00e1n emelkedik, a megk\u00fcl\u00f6nb\u00f6ztet\u0151 jel az interf\u00e9sz-ellen\u00e1ll\u00e1s n\u00f6veked\u00e9se a t\u00f6meges vezet\u0151k\u00e9pess\u00e9g v\u00e1ltozatlans\u00e1ga mellett. A szinte teljes s\u0171r\u0171s\u00e9g el\u00e9r\u00e9se \u00e9s a szabad fel\u00fcletek v\u00e9delme \u2013 amint azt a 85 \u00b0C \/ 85 % relat\u00edv p\u00e1ratartalom melletti k\u00eds\u00e9rletben a nagyobb s\u0171r\u0171s\u00e9g\u0171 hordoz\u00f3k kisebb ellen\u00e1ll\u00e1s-n\u00f6veked\u00e9se is bizony\u00edtja \u2013 korl\u00e1tozza a nedvess\u00e9g \u00e1ltal okozott min\u0151s\u00e9groml\u00e1st, \u00e9s meg\u0151rzi az alum\u00ednium-nitrid h\u0151terjeszt\u0151 teljes\u00edtm\u00e9ny\u00e9t.<\/p>","protected":false},"excerpt":{"rendered":"<p>Why Aluminium Nitride Packages Lose Heat-Spreading Ability After Humid Exposure After twelve years working with aluminium nitride substrates in power [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","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":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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