Polovodi\u010de z karbidu k\u0159em\u00edku maj\u00ed potenci\u00e1l zm\u011bnit \u0159adu trh\u016f. \u010c\u00edm jsou v\u0161ak v\u00fdjime\u010dn\u00e9?<\/p>\n
V\u00fdkonov\u00e1 za\u0159\u00edzen\u00ed vyroben\u00e1 z karbidu k\u0159em\u00edku maj\u00ed \u0159adu v\u00fdhod, pokud jde o kvalitu, spolehlivost a \u00fa\u010dinnost. Sni\u017euj\u00ed energetick\u00e9 ztr\u00e1ty a z\u00e1rove\u0148 sni\u017euj\u00ed v\u00fdrobn\u00ed n\u00e1klady v konstrukc\u00edch s vy\u0161\u0161\u00edmi sp\u00ednac\u00edmi frekvencemi.<\/p>\n
Tyto v\u00fdjime\u010dn\u00e9 fyzik\u00e1ln\u00ed vlastnosti SiC jsou umo\u017en\u011bny jeho v\u00fdjime\u010dn\u00fdmi elektrotermick\u00fdmi vlastnostmi a budou podrobn\u011bji pops\u00e1ny n\u00ed\u017ee v jednotliv\u00fdch kapitol\u00e1ch.<\/p>\n
Polovodi\u010de z karbidu k\u0159em\u00edku snesou vy\u0161\u0161\u00ed nap\u011bt\u00ed a proud a vy\u0161\u0161\u00ed teploty ne\u017e za\u0159\u00edzen\u00ed na b\u00e1zi k\u0159em\u00edku, \u010d\u00edm\u017e se sni\u017euj\u00ed ztr\u00e1ty p\u0159i p\u0159evodu nap\u011bt\u00ed a proudu a v\u00fdkonov\u00e9 polovodi\u010de jsou cenov\u011b v\u00fdhodn\u011bj\u0161\u00ed, leh\u010d\u00ed a \u00fa\u010dinn\u011bj\u0161\u00ed.<\/p>\n
Jsou proto ide\u00e1ln\u00edmi sou\u010d\u00e1stkami pro za\u0159\u00edzen\u00ed v\u00fdkonov\u00e9 elektroniky, jako jsou tranzistory MOSFET a Schottkyho diody v diskr\u00e9tn\u00edm proveden\u00ed a v\u00fdkonov\u00e9 moduly, a jejich \u0161irok\u00e1 p\u00e1smov\u00e1 propust jim umo\u017e\u0148uje pracovat p\u0159i vy\u0161\u0161\u00edch frekvenc\u00edch bez ztr\u00e1ty \u00fa\u010dinnosti nebo probl\u00e9m\u016f s produkc\u00ed tepla.<\/p>\n
Dopov\u00e1n\u00ed polovodi\u010d\u016f z karbidu k\u0159em\u00edku umo\u017e\u0148uje v\u00fdrobc\u016fm \u0159\u00eddit elektrickou vodivost t\u011bchto polovodi\u010d\u016f p\u0159id\u00e1v\u00e1n\u00edm p\u0159\u00edm\u011bs\u00ed, jako jsou dus\u00edk, fosfor a berylium, a t\u00edm m\u011bnit jejich pr\u016frazn\u00e9 nap\u011bt\u00ed a vlastnosti elektronick\u00e9 pohyblivosti.<\/p>\n
Laborato\u0159e EAG maj\u00ed rozs\u00e1hl\u00e9 zku\u0161enosti s anal\u00fdzou elektrotermick\u00fdch vlastnost\u00ed karbidu k\u0159em\u00edku pomoc\u00ed objemov\u00fdch a prostorov\u011b rozli\u0161en\u00fdch analytick\u00fdch technik. M\u016f\u017eeme ov\u011b\u0159it koncentraci a distribuci dopant\u016f a tak\u00e9 zajistit, aby se ve vzorku karbidu k\u0159em\u00edku nevyskytovaly ne\u017e\u00e1douc\u00ed kontaminanty.<\/p>\n
Polovodi\u010de na b\u00e1zi karbidu k\u0159em\u00edku (SiC) a nitridu galia (GaN) nab\u00edzej\u00ed v\u011bt\u0161\u00ed energetick\u00e9 p\u00e1smov\u00e9 mezery ne\u017e tradi\u010dn\u00ed materi\u00e1ly na b\u00e1zi k\u0159em\u00edku, co\u017e umo\u017e\u0148uje za\u0159\u00edzen\u00edm pracovat p\u0159i vy\u0161\u0161\u00edch nap\u011bt\u00edch, frekvenc\u00edch a teplot\u00e1ch a z\u00e1rove\u0148 sni\u017euje hmotnost a n\u00e1klady na \u017eivotn\u00ed cyklus za\u0159\u00edzen\u00ed vyr\u00e1b\u011bn\u00fdch z t\u011bchto dvou materi\u00e1l\u016f. To umo\u017e\u0148uje spole\u010dnostem zmen\u0161ovat rozm\u011bry a z\u00e1rove\u0148 zvy\u0161ovat v\u00fdkon p\u0159i ni\u017e\u0161\u00edch hmotnostn\u00edch n\u00e1kladech a z\u00e1rove\u0148 sni\u017eovat hmotnostn\u00ed n\u00e1klady na \u017eivotn\u00ed cyklus.<\/p>\n
\u0160ir\u0161\u00ed p\u00e1sov\u00e1 mezera umo\u017e\u0148uje elektron\u016fm ve valen\u010dn\u00edm p\u00e1su snadno p\u0159ech\u00e1zet do vodivostn\u00edho bez vynalo\u017een\u00ed tepeln\u00e9 energie, co\u017e usnad\u0148uje polovodi\u010dov\u00fdm za\u0159\u00edzen\u00edm p\u0159ep\u00edn\u00e1n\u00ed velk\u00fdch proud\u016f p\u0159i vysok\u00fdch rychlostech bez ztr\u00e1t v\u00fdkonu.<\/p>\n
\u0160irokop\u00e1smov\u00e9 polovodi\u010de mohou sn\u00ed\u017eit hmotnost, objem a n\u00e1klady na \u017eivotn\u00ed cyklus v\u00fdkonov\u00e9 elektroniky, urychlit \u0161irok\u00e9 p\u0159ijet\u00ed elektrick\u00fdch vozidel a integrovat obnoviteln\u00e9 zdroje energie do elektrick\u00e9 s\u00edt\u011b. Flexibiln\u00ed modelovac\u00ed p\u00edskovi\u0161t\u011b IC-CAP spole\u010dnosti Keysight umo\u017e\u0148uje in\u017een\u00fdr\u016fm modeluj\u00edc\u00edm za\u0159\u00edzen\u00ed maximalizovat tyto inovativn\u00ed technologie pro dosa\u017een\u00ed maxim\u00e1ln\u00edho p\u0159\u00ednosu - stejn\u011b jako Luke Skywalker obratn\u011b shodil foton na Hv\u011bzdu smrti! IC-CAP v\u00e1s vybav\u00ed tak, abyste se mohli postavit \u010delem ke ka\u017ed\u00e9 konstruk\u010dn\u00ed v\u00fdzv\u011b!<\/p>\n
Polovodi\u010de z karbidu k\u0159em\u00edku se mohou pochlubit desetkr\u00e1t v\u011bt\u0161\u00ed pr\u016fraznou silou pole ne\u017e b\u011b\u017en\u00e9 k\u0159em\u00edkov\u00e9 sou\u010d\u00e1stky, co\u017e znamen\u00e1, \u017ee vydr\u017e\u00ed mnohem v\u011bt\u0161\u00ed energii, ani\u017e by se po\u0161kodily - co\u017e je z\u00e1sadn\u00ed vlastnost pro aplikace p\u0159em\u011bny energie, jako jsou trak\u010dn\u00ed m\u011bni\u010de pro elektrick\u00e1 vozidla.<\/p>\n
Vysok\u00e1 pevnost v pr\u016frazn\u00e9m poli SiC umo\u017e\u0148uje vyr\u00e1b\u011bt za\u0159\u00edzen\u00ed men\u0161\u00edch rozm\u011br\u016f p\u0159i zachov\u00e1n\u00ed vysok\u00e9ho jmenovit\u00e9ho nap\u011bt\u00ed, co\u017e vede k v\u00fdrazn\u00fdm \u00faspor\u00e1m velikosti, hmotnosti a n\u00e1klad\u016f na sou\u010d\u00e1stky.<\/p>\n
V\u00fdrobci automobil\u016f st\u00e1le \u010dast\u011bji vyu\u017e\u00edvaj\u00ed SiC a dal\u0161\u00ed materi\u00e1ly se \u0161irok\u00fdm p\u00e1smov\u00fdm rozp\u011bt\u00edm, aby jim pomohly p\u0159i p\u0159echodu na elektrick\u00e1 vozidla, a pod tlakem vl\u00e1dy na sni\u017eov\u00e1n\u00ed emis\u00ed.<\/p>\n
Karbid k\u0159em\u00edku (SiC) je anorganick\u00e1 chemick\u00e1 slou\u010denina tvo\u0159en\u00e1 k\u0159em\u00edkem a uhl\u00edkem. \u0160iroce se pou\u017e\u00edv\u00e1 v aplikac\u00edch vy\u017eaduj\u00edc\u00edch vysokou odolnost, jako jsou nepr\u016fst\u0159eln\u00e9 vesty a keramick\u00e9 brzdov\u00e9 desky automobil\u016f, a tak\u00e9 jako brusivo nebo p\u0159i v\u00fdrob\u011b syntetick\u00fdch drah\u00fdch kamen\u016f moissanit\u016f na prodej. SiC lze p\u011bstovat na desti\u010dk\u00e1ch pomoc\u00ed proces\u016f tepeln\u00e9ho \u017e\u00edh\u00e1n\u00ed nebo chemick\u00e9ho napa\u0159ov\u00e1n\u00ed; ob\u011b metody umo\u017e\u0148uj\u00ed jeho snadn\u00fd r\u016fst ve form\u011b desti\u010dek.<\/p>\n
Karbid k\u0159em\u00edku (SiC) je nekonven\u010dn\u00ed polovodi\u010dov\u00fd materi\u00e1l se \u0161irokou p\u00e1smovou mezerou, kter\u00fd m\u00e1 oproti b\u011b\u017en\u011bji pou\u017e\u00edvan\u00e9mu k\u0159em\u00edku jedine\u010dn\u00e9 v\u00fdhody ve vysokonap\u011b\u0165ov\u00fdch energetick\u00fdch aplikac\u00edch. SiC odol\u00e1v\u00e1 v\u00fdrazn\u011b vy\u0161\u0161\u00edm teplot\u00e1m, nap\u011bt\u00edm a frekvenc\u00edm, ani\u017e by doch\u00e1zelo k p\u0159eh\u0159\u00edv\u00e1n\u00ed za\u0159\u00edzen\u00ed pracuj\u00edc\u00edch p\u0159i vysok\u00fdch rychlostech; nav\u00edc jeho n\u00edzk\u00fd zap\u00ednac\u00ed odpor umo\u017e\u0148uje za\u0159\u00edzen\u00edm pracovat p\u0159i vy\u0161\u0161\u00ed frekvenci bez p\u0159eh\u0159\u00edv\u00e1n\u00ed.<\/p>\n
SiC je inertn\u00ed materi\u00e1l s vynikaj\u00edc\u00ed chemickou odolnost\u00ed v\u016f\u010di kyselin\u00e1m a louh\u016fm a n\u00edzkou tepelnou rozta\u017enost\u00ed, co\u017e z n\u011bj \u010din\u00ed velmi \u017e\u00e1dan\u00fd materi\u00e1l pro podp\u011bry a lopatky desti\u010dek v polovodi\u010dov\u00fdch pec\u00edch, rezistory, varistory a varistorov\u00e9 sou\u010d\u00e1stky. D\u00edky t\u011bmto vlastnostem je SiC ide\u00e1ln\u00ed pro aplikace rezistor\u016f a varistor\u016f.<\/p>\n
\u010cist\u00fd SiC je bezbarv\u00fd a m\u00e1 kubickou krystalovou strukturu. Lze jej p\u011bstovat jako monokrystalick\u00e9 monokrystaly Lelyho metodou a p\u0159\u00edle\u017eitostn\u011b brousit do syntetick\u00fdch drahokam\u016f moissanitu pro \u0161perka\u0159sk\u00e9 \u00fa\u010dely.<\/p>","protected":false},"excerpt":{"rendered":"
Silicon carbide semiconductors have the potential to transform multiple markets. But what makes them special? Power devices crafted from silicon carbide offer numerous advantages when it comes to quality, reliability and efficiency. They reduce energy loss while decreasing BOM costs in designs featuring higher switching frequencies. These outstanding physical properties of SiC are enabled by […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","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-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-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-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-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-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-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-gradient":""}},"footnotes":""},"categories":[64],"tags":[],"class_list":["post-180","post","type-post","status-publish","format-standard","hentry","category-knowledge"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/ceramicatijolart.com\/cs\/wp-json\/wp\/v2\/posts\/180","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ceramicatijolart.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ceramicatijolart.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ceramicatijolart.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ceramicatijolart.com\/cs\/wp-json\/wp\/v2\/comments?post=180"}],"version-history":[{"count":1,"href":"https:\/\/ceramicatijolart.com\/cs\/wp-json\/wp\/v2\/posts\/180\/revisions"}],"predecessor-version":[{"id":181,"href":"https:\/\/ceramicatijolart.com\/cs\/wp-json\/wp\/v2\/posts\/180\/revisions\/181"}],"wp:attachment":[{"href":"https:\/\/ceramicatijolart.com\/cs\/wp-json\/wp\/v2\/media?parent=180"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ceramicatijolart.com\/cs\/wp-json\/wp\/v2\/categories?post=180"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ceramicatijolart.com\/cs\/wp-json\/wp\/v2\/tags?post=180"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}