Alumina \u00ebsht\u00eb substrati keramik i paracaktuar p\u00ebr nj\u00eb arsye. \u00cbsht\u00eb i lir\u00eb, i fort\u00eb dhe i leht\u00eb p\u00ebr t'u metalizuar. Gjithashtu \u00ebsht\u00eb nj\u00eb tub nxeht\u00ebsie i dob\u00ebt. Nj\u00eb bord Al\u2082O\u2083 96% ka nj\u00eb konduktivitet rreth 20\u201330 W\/m\u00b7K. Nitridi i aluminit, kur realizohet si duhet, arrin n\u00eb diapazonin 170\u2013200 W\/m\u00b7K, ndonj\u00ebher\u00eb pak mbi 200. Teoria p\u00ebr nj\u00eb kristal t\u00eb vet\u00ebm t\u00eb p\u00ebrsosur \u00ebsht\u00eb af\u00ebr 320. Askush nuk e furnizon at\u00eb. Ajo q\u00eb ne furnizojm\u00eb \u00ebsht\u00eb nj\u00eb izolues i sinteruar q\u00eb mund t\u00eb largoj\u00eb nxeht\u00ebsin\u00eb nga die-i i nj\u00eb moduli fuqie pa u b\u00ebr\u00eb konduktiv.<\/p>\n
Ai kombinim \u00ebsht\u00eb puna. Metalet p\u00ebrcjellin nxeht\u00ebsin\u00eb dhe rrym\u00ebn. Shumica e qeramikave bllokojn\u00eb rrym\u00ebn dhe kapin nxeht\u00ebsin\u00eb. Nitridi i aluminit p\u00ebrcjell nxeht\u00ebsin\u00eb dhe ofron izolim n\u00eb t\u00eb nj\u00ebjt\u00ebn koh\u00eb, me nj\u00eb koeficient t\u00eb zgjerimit termik (CTE) rreth 4.5 ppm\/\u00b0C \u2014 i af\u00ebrt me silikonin. Alumina zgjerohet m\u00eb shum\u00eb, rreth 6.5\u20137.5. Tek nj\u00eb pajisje IGBT me fuqi t\u00eb lart\u00eb ose SiC, kjo pap\u00ebrputhshm\u00ebri shfaqet si lodhje saldimi dhe si shtres\u00eb bakri q\u00eb shk\u00ebputet. BeO p\u00ebrcjell edhe m\u00eb mir\u00eb dhe ne ende e shmangim kur mundemi. Toksiciteti nuk \u00ebsht\u00eb nj\u00eb sh\u00ebnim n\u00eb fund t\u00eb flet\u00ebs s\u00eb t\u00eb dh\u00ebnave.<\/p>\n
Oksigjeni \u00ebsht\u00eb papast\u00ebrtia q\u00eb prish historin\u00eb e konduktivitetit. Oksigjeni n\u00eb rrjet krijon vakanca alumini. Fonon\u00ebt shp\u00ebrndahen. Pluhuri me disa p\u00ebr qind oksigjen sinterizohet n\u00eb di\u00e7ka q\u00eb duket si AlN dhe matet m\u00eb af\u00ebr 100 W\/m\u00b7K. Pluhur me pak oksigjen plus nj\u00eb ndihm\u00ebs sinterimi q\u00eb t\u00ebrheq oksigjenin n\u00eb nj\u00eb faz\u00eb kufiri kokrrash \u2014 yttria \u00ebsht\u00eb zakonisht ajo \u2014 \u00ebsht\u00eb m\u00ebnyra p\u00ebr t\u00eb arritur klas\u00ebn mbi 170. Dend\u00ebsia duhet t\u00eb jet\u00eb e lart\u00eb. Nj\u00eb pore reziduale \u00ebsht\u00eb nj\u00eb tjet\u00ebr vend i shp\u00ebrndarjes. Pra \u201csubstrat AlN\u201d n\u00eb nj\u00eb PO nuk \u00ebsht\u00eb nj\u00eb klas\u00eb. K\u00ebrkoni p\u00ebr\u00e7ueshm\u00ebri termike, jo vet\u00ebm kimik\u00eb.<\/p>\n
P\u00ebrpunimi i pluhurit \u00ebsht\u00eb pika ku punishtet befasohen. AlN i im\u00ebt hidrolizohet. L\u00ebre n\u00eb aj\u00ebr t\u00eb lag\u00ebsht dhe formon nj\u00eb shtres\u00eb hidroksidi, duke rritur oksigjenin q\u00eb sapo ke paguar p\u00ebr ta hequr. Ruajtje e that\u00eb, koh\u00eb e shkurt\u00ebr hapjeje, ndonj\u00ebher\u00eb trajtim sip\u00ebrfaq\u00ebsor. Kjo nuk \u00ebsht\u00eb kapriciozitet. K\u00ebshtu vlera k mbijeton deri n\u00eb furr\u00eb.<\/p>\n
Ne p\u00ebrdorim nitrid alumini aty ku grumbulli termik me t\u00eb v\u00ebrtet\u00eb e nevojton: n\u00eb bordet e fuqis\u00eb DBC dhe DPC, paketat RF, mbajt\u00ebset n\u00ebn-montaj p\u00ebr lazer\u00eb dhe LED, disa pjes\u00eb t\u00eb proceseve gjysm\u00ebp\u00ebr\u00e7ues. N\u00ebse \u00e7ipi \u00ebsht\u00eb disa vat dhe ftoh\u00ebsi \u00ebsht\u00eb pik\u00ebngushtimi, alumina ende fiton n\u00eb \u00e7mim. N\u00ebse po kaloni dhjet\u00ebra vat p\u00ebrmes nj\u00eb qeramike t\u00eb holl\u00eb drejt bakrit, r\u00ebnia e substratit te alumina nuk \u00ebsht\u00eb m\u00eb falas. Qeramika kushton m\u00eb shum\u00eb. Moduli q\u00eb nuk ngec dhe nuk delaminon \u00ebsht\u00eb ai me kthim.<\/p>\n
P\u00ebrpunimi me makin\u00eb dhe metalizimi k\u00ebrkojn\u00eb t\u00eb nj\u00ebjt\u00ebn ndershm\u00ebri. AlN nuk \u00ebsht\u00eb aq i thjesht\u00eb sa alumina 96%. Skajet \u00e7ipen. Lidhja me bak\u00ebr duhet t\u00eb p\u00ebrputhet me zgjerimin. Nj\u00eb disk i bukur 180 W\/m\u00b7K me nj\u00eb nd\u00ebrfaqe t\u00eb dob\u00ebt \u00ebsht\u00eb thjesht nj\u00eb izolues i shtrenjt\u00eb. Specifikoni k, trash\u00ebsin\u00eb, sip\u00ebrfaqen dhe sistemin metalik s\u00eb bashku. Nitridi i aluminit \u00ebsht\u00eb nj\u00eb rrug\u00eb nxeht\u00ebsie q\u00eb rast\u00ebsisht \u00ebsht\u00eb nj\u00eb qeramik\u00eb. Trajtojeni k\u00ebshtu dhe ai fiton \u00e7mimin e lart\u00eb. Trajtojeni si alumina e bardh\u00eb me nj\u00eb broshur\u00eb m\u00eb t\u00eb mir\u00eb dhe nuk do ta fitoj\u00eb.<\/p>","protected":false},"excerpt":{"rendered":"
Aluminium Nitride Moves Heat Like a Metal and Still Blocks Current Alumina is the default ceramic substrate for a reason. […]<\/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 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-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":"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":""},"mobile":{"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":""}},"footnotes":""},"categories":[2],"tags":[],"class_list":["post-74","post","type-post","status-publish","format-standard","hentry","category-products-related"],"_links":{"self":[{"href":"https:\/\/aluminiumnitride.com\/sq\/wp-json\/wp\/v2\/posts\/74","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aluminiumnitride.com\/sq\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aluminiumnitride.com\/sq\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aluminiumnitride.com\/sq\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aluminiumnitride.com\/sq\/wp-json\/wp\/v2\/comments?post=74"}],"version-history":[{"count":1,"href":"https:\/\/aluminiumnitride.com\/sq\/wp-json\/wp\/v2\/posts\/74\/revisions"}],"predecessor-version":[{"id":77,"href":"https:\/\/aluminiumnitride.com\/sq\/wp-json\/wp\/v2\/posts\/74\/revisions\/77"}],"wp:attachment":[{"href":"https:\/\/aluminiumnitride.com\/sq\/wp-json\/wp\/v2\/media?parent=74"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aluminiumnitride.com\/sq\/wp-json\/wp\/v2\/categories?post=74"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aluminiumnitride.com\/sq\/wp-json\/wp\/v2\/tags?post=74"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}