Karbid k\u0159em\u00edku je inovativn\u00ed polovodi\u010dov\u00fd substr\u00e1t s mnoha v\u00fdhodami oproti tradi\u010dn\u00edmu k\u0159em\u00edku. Karbid k\u0159em\u00edku slibuje revolu\u010dn\u00ed zm\u011bny v cel\u00e9 \u0159ad\u011b technologi\u00ed a pr\u016fmyslov\u00fdch odv\u011btv\u00ed, od revoluce ve v\u00fdkonov\u00e9 elektronice a\u017e po ultrarychl\u00e9 komunika\u010dn\u00ed syst\u00e9my.<\/p>\n
SiC dob\u0159e odol\u00e1v\u00e1 vysok\u00fdm teplot\u00e1m a nap\u011bt\u00edm, co\u017e z n\u011bj \u010din\u00ed z\u00e1kladn\u00ed materi\u00e1l pro v\u00fdkonov\u00e9 polovodi\u010de, fotovoltaick\u00e9 \u010dl\u00e1nky a infrastrukturu pro nab\u00edjen\u00ed elektrick\u00fdch vozidel. Bohu\u017eel jeho tvrdost vy\u017eaduje speci\u00e1ln\u00ed n\u00e1stroje pro jeho \u0159ez\u00e1n\u00ed.<\/p>\n
Desti\u010dky z karbidu k\u0159em\u00edku jsou z\u00e1kladn\u00edmi sou\u010d\u00e1stmi v\u00fdkonov\u00e9 elektroniky d\u00edky sv\u00e9 v\u00fdjime\u010dn\u00e9 tepeln\u00e9 vodivosti a schopnosti \u00fa\u010dinn\u011b rozptylovat teplo b\u011bhem provozu, co\u017e umo\u017e\u0148uje za\u0159\u00edzen\u00edm pracovat i v n\u00e1ro\u010dn\u00fdch podm\u00ednk\u00e1ch bez sn\u00ed\u017een\u00ed v\u00fdkonu.<\/p>\n
\u0160irok\u00fd p\u00e1s karbidu k\u0159em\u00edku zt\u011b\u017euje p\u0159echod elektron\u016f z jeho valen\u010dn\u00edch p\u00e1s\u016f do p\u00e1s\u016f vodivosti, co\u017e pom\u00e1h\u00e1 zabr\u00e1nit \u00fanik\u016fm ve vysokonap\u011b\u0165ov\u00fdch aplikac\u00edch a zabra\u0148uje termonukle\u00e1rn\u00edm \u00fanik\u016fm. Krom\u011b toho je d\u00edky sv\u00e9 odolnosti v\u016f\u010di oxidaci a chemick\u00e9 inertnosti vynikaj\u00edc\u00ed volbou materi\u00e1lu pro mnoho vysokoteplotn\u00edch polovodi\u010dov\u00fdch aplikac\u00ed.<\/p>\n
Karbid k\u0159em\u00edku se m\u016f\u017ee pochlubit n\u00edzk\u00fdm koeficientem tepeln\u00e9 rozta\u017enosti, co\u017e znamen\u00e1, \u017ee se jeho rozta\u017enost nebo smr\u0161\u0165ov\u00e1n\u00ed p\u0159i zm\u011bn\u00e1ch teploty nebo chladu v\u00fdrazn\u011b nem\u011bn\u00ed, co\u017e pom\u00e1h\u00e1 sni\u017eovat nap\u011bt\u00ed zp\u016fsoben\u00e9 teplotn\u00edmi gradienty, kter\u00e9 by mohly m\u00edt za n\u00e1sledek prask\u00e1n\u00ed nebo l\u00e1m\u00e1n\u00ed za\u0159\u00edzen\u00ed, a z\u00e1rove\u0148 umo\u017e\u0148uje um\u00edstit v\u00edce tranzistor\u016f na jednu desti\u010dku - ob\u011b tyto vlastnosti jsou d\u016fle\u017eit\u00e9 pro zv\u00fd\u0161en\u00ed spolehlivosti v\u00fdroby \u010dip\u016f.<\/p>\n
Karbid k\u0159em\u00edku m\u00e1 n\u00edzk\u00fd koeficient tepeln\u00e9 rozta\u017enosti, co\u017e znamen\u00e1, \u017ee se p\u0159i zm\u011bn\u011b teploty tolik neroztahuje ani nesmr\u0161\u0165uje, co\u017e z n\u011bj \u010din\u00ed ide\u00e1ln\u00ed materi\u00e1l pro aplikace vy\u017eaduj\u00edc\u00ed vysokou stabilitu, jako jsou mobiln\u00ed telefony a dal\u0161\u00ed elektronick\u00e1 za\u0159\u00edzen\u00ed. Karbid k\u0159em\u00edku nav\u00edc sn\u00e1\u0161\u00ed extr\u00e9mn\u00ed teploty a z\u00e1rove\u0148 odol\u00e1v\u00e1 chemick\u00fdm \u00fatok\u016fm.<\/p>\n
Potravin\u00e1\u0159sk\u00fd silikonov\u00fd kau\u010duk je nejen netoxick\u00fd, ale lze jej pou\u017e\u00edt i p\u0159i v\u00fdrob\u011b potravin. Krom\u011b toho m\u00e1 r\u016fzn\u00e9 mo\u017enosti pou\u017eit\u00ed, od \u017e\u00e1ruvzdorn\u00fdch vyzd\u00edvek a izola\u010dn\u00edch sou\u010d\u00e1st\u00ed pr\u016fmyslov\u00fdch pec\u00ed a\u017e po t\u0159ec\u00ed lo\u017eiska a mechanick\u00e1 t\u011bsn\u011bn\u00ed v potrubn\u00edch syst\u00e9mech.<\/p>\n
V\u00fdrobci vyr\u00e1b\u011bj\u00ed krychlov\u00e9 desti\u010dky karbidu k\u0159em\u00edku zah\u0159\u00edv\u00e1n\u00edm k\u0159emi\u010dit\u00e9ho p\u00edsku s ropn\u00fdm koksem nebo jin\u00fdm zdrojem uhl\u00edku na vysok\u00e9 teploty v otev\u0159en\u00e9 \"Achesonov\u011b\" peci, p\u0159i\u010dem\u017e vznik\u00e1 zelen\u00fd nebo \u010dern\u00fd krystalick\u00fd karbid k\u0159em\u00edku vysok\u00e9 \u010distoty. N\u011bkte\u0159\u00ed v\u00fdrobci pou\u017e\u00edvaj\u00ed k v\u00fdrob\u011b kubick\u00e9ho karbidu k\u0159em\u00edku tak\u00e9 chemick\u00e9 napa\u0159ov\u00e1n\u00ed; ob\u011b metody spot\u0159ebov\u00e1vaj\u00ed obrovsk\u00e9 mno\u017estv\u00ed energie a za\u0159\u00edzen\u00ed.<\/p>\n
Karbid k\u0159em\u00edku je zn\u00e1m\u00fd svou mimo\u0159\u00e1dnou pru\u017enost\u00ed a odolnost\u00ed v\u016f\u010di teplotn\u00edm \u0161ok\u016fm, co\u017e znamen\u00e1, \u017ee n\u00e1hl\u00e9 zm\u011bny teploty ho nepraskaj\u00ed a nevedou k n\u00e1hl\u00fdm zlom\u016fm nebo prasklin\u00e1m. D\u00edky tomu je karbid k\u0159em\u00edku vynikaj\u00edc\u00ed volbou materi\u00e1lu pro za\u0159\u00edzen\u00ed vy\u017eaduj\u00edc\u00ed vysokou odolnost proti po\u0161kozen\u00ed, jako jsou v\u00fdkonov\u00e9 polovodi\u010de; nav\u00edc se m\u016f\u017ee pochlubit ni\u017e\u0161\u00edm zap\u00ednac\u00edm odporem a celkov\u00fdm n\u00e1bojem hradla, co\u017e umo\u017e\u0148uje vy\u0161\u0161\u00ed rychlost sp\u00edn\u00e1n\u00ed s vy\u0161\u0161\u00ed \u00fa\u010dinnost\u00ed.<\/p>\n
Karbid k\u0159em\u00edku se vyr\u00e1b\u00ed kombinac\u00ed k\u0159em\u00edku a uhl\u00edku a m\u016f\u017ee nab\u00fdvat r\u016fzn\u00fdch krystalick\u00fdch struktur. Karbid k\u0159em\u00edku alfa m\u00e1 nejroz\u0161\u00ed\u0159en\u011bj\u0161\u00ed pou\u017eit\u00ed, proto\u017ee jeho hexagon\u00e1ln\u00ed krystalov\u00e1 struktura napodobuje wurtzit. Beta modifikace se svou krystalovou strukturou zinc blende je sice m\u00e9n\u011b roz\u0161\u00ed\u0159en\u00e1, ale st\u00e1le m\u00e1 n\u011bkolik aplikac\u00ed.<\/p>\n
Substr\u00e1ty z karbidu k\u0159em\u00edku jsou nezbytn\u00e9 pro v\u00fdrobu mnoha sofistikovan\u00fdch polovodi\u010dov\u00fdch za\u0159\u00edzen\u00ed a mus\u00ed b\u00fdt vhodn\u011b p\u0159ipraveny, aby umo\u017e\u0148ovaly epitaxn\u00ed r\u016fst s vysokou p\u0159esnost\u00ed a konzistenc\u00ed. Pro spln\u011bn\u00ed tohoto \u00fakolu se k epitaxn\u00edmu r\u016fstu pou\u017e\u00edv\u00e1 le\u0161tic\u00ed suspenze na b\u00e1zi diamantu a le\u0161tic\u00ed podlo\u017eka, kter\u00e1 odpov\u00edd\u00e1 specifick\u00fdm n\u00e1stroj\u016fm instalovan\u00fdm v za\u0159\u00edzen\u00edch z\u00e1kazn\u00edk\u016f.<\/p>\n
Karbid k\u0159em\u00edku nab\u00edz\u00ed v\u00fdjime\u010dnou odolnost v\u016f\u010di tepeln\u00fdm \u0161ok\u016fm d\u00edky sv\u00e9 vynikaj\u00edc\u00ed tepeln\u00e9 vodivosti a n\u00edzk\u00e9 rozta\u017enosti, tak\u017ee je vhodn\u00fd pro odol\u00e1v\u00e1n\u00ed teplot\u00e1m, kter\u00e9 dosahuj\u00ed extr\u00e9mn\u011b vysok\u00fdch hodnot, ani\u017e by ztratil pevnost. D\u00edky sv\u00fdm vlastnostem jsou vhodn\u00e9 pro pou\u017eit\u00ed jako podp\u011bry z\u00e1sobn\u00edk\u016f na wafery nebo lopatky v elektrick\u00fdch pec\u00edch a jsou odoln\u00e9 i v\u016f\u010di kyselin\u00e1m nebo roztaven\u00fdm sol\u00edm.<\/p>\n
Karbid k\u0159em\u00edku je st\u00e1le obl\u00edben\u011bj\u0161\u00edm materi\u00e1lem pro brusn\u00e9 n\u00e1stroje, jako jsou \u0159ezn\u00e9 kotou\u010de a brusn\u00e9 kotou\u010de, d\u00edky sv\u00e9 odolnosti proti korozi, ot\u011bru a erozi. Sl\u00e9v\u00e1rny pou\u017e\u00edvaj\u00ed tygl\u00edky z karbidu k\u0159em\u00edku pro taven\u00ed kov\u016f ve sl\u00e9v\u00e1rn\u00e1ch; jeho fyzik\u00e1ln\u00ed vlastnosti i v\u00fdjime\u010dn\u00e9 elektronick\u00e9 vlastnosti z n\u011bj \u010din\u00ed vhodn\u00e9ho kandid\u00e1ta pro energetick\u00e1 za\u0159\u00edzen\u00ed.<\/p>\n
P\u0159i n\u00e1kupu desti\u010dek z karbidu k\u0159em\u00edku je d\u016fle\u017eit\u00e9 posoudit jejich krystalovou morfologii a hustotu defekt\u016f, proto\u017ee to ovliv\u0148uje v\u00fdkon za\u0159\u00edzen\u00ed. D\u00e1le by se nem\u011bl zanedbat v\u00fdb\u011br \u00fa\u010dinn\u00e9ho procesu dopov\u00e1n\u00ed pro po\u017eadovan\u00e9 elektrick\u00e9 vlastnosti.<\/p>","protected":false},"excerpt":{"rendered":"
Silicon carbide wafer is an innovative semiconductor substrate with many advantages over traditional silicon. From revolutionizing power electronics to providing […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","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":[3],"tags":[],"class_list":["post-46","post","type-post","status-publish","format-standard","hentry","category-sic-knowledge"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/siliconcarbideceramic.net\/cs\/wp-json\/wp\/v2\/posts\/46","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/siliconcarbideceramic.net\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/siliconcarbideceramic.net\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/cs\/wp-json\/wp\/v2\/comments?post=46"}],"version-history":[{"count":1,"href":"https:\/\/siliconcarbideceramic.net\/cs\/wp-json\/wp\/v2\/posts\/46\/revisions"}],"predecessor-version":[{"id":47,"href":"https:\/\/siliconcarbideceramic.net\/cs\/wp-json\/wp\/v2\/posts\/46\/revisions\/47"}],"wp:attachment":[{"href":"https:\/\/siliconcarbideceramic.net\/cs\/wp-json\/wp\/v2\/media?parent=46"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/cs\/wp-json\/wp\/v2\/categories?post=46"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/cs\/wp-json\/wp\/v2\/tags?post=46"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}