Karbid krem\u00edka je inovat\u00edvny polovodi\u010dov\u00fd substr\u00e1t s mnoh\u00fdmi v\u00fdhodami oproti tradi\u010dn\u00e9mu krem\u00edku. Karbid krem\u00edka s\u013eubuje revolu\u010dn\u00e9 zmeny v celom rade technol\u00f3gi\u00ed a priemyseln\u00fdch odvetv\u00ed, od revol\u00facie vo v\u00fdkonovej elektronike a\u017e po poskytovanie ultravysokor\u00fdchlostn\u00fdch komunika\u010dn\u00fdch syst\u00e9mov.<\/p>\n
SiC dobre odol\u00e1va vysok\u00fdm teplot\u00e1m a nap\u00e4tiam, v\u010faka \u010domu je z\u00e1kladn\u00fdm materi\u00e1lom pre v\u00fdkonov\u00e9 polovodi\u010de, fotovoltaick\u00e9 \u010dl\u00e1nky a infra\u0161trukt\u00faru nab\u00edjania elektrick\u00fdch vozidiel. Bohu\u017eia\u013e, jeho tvrdos\u0165 si vy\u017eaduje \u0161peci\u00e1lne n\u00e1stroje na jeho rezanie.<\/p>\n
Karbid krem\u00edka je z\u00e1kladnou s\u00fa\u010das\u0165ou v\u00fdkonovej elektroniky v\u010faka svojej v\u00fdnimo\u010dnej tepelnej vodivosti a schopnosti efekt\u00edvne rozpty\u013eova\u0165 teplo po\u010das prev\u00e1dzky, \u010do umo\u017e\u0148uje zariadeniam fungova\u0165 aj v n\u00e1ro\u010dn\u00fdch podmienkach bez zn\u00ed\u017eenia v\u00fdkonu.<\/p>\n
\u0160irok\u00e1 p\u00e1smov\u00e1 medzera karbidu krem\u00edka s\u0165a\u017euje prechod elektr\u00f3nov z valen\u010dn\u00fdch p\u00e1siem do vodivostn\u00fdch p\u00e1siem, \u010do pom\u00e1ha predch\u00e1dza\u0165 \u00fanikom vo vysokonap\u00e4\u0165ov\u00fdch aplik\u00e1ci\u00e1ch a zabra\u0148uje termonukle\u00e1rnym \u00fanikom. Okrem toho je v\u010faka svojej odolnosti vo\u010di oxid\u00e1cii a chemickej inertnosti vynikaj\u00facou vo\u013ebou materi\u00e1lu pre mnoh\u00e9 vysokoteplotn\u00e9 polovodi\u010dov\u00e9 aplik\u00e1cie.<\/p>\n
Karbid krem\u00edka sa m\u00f4\u017ee pochv\u00e1li\u0165 n\u00edzkym koeficientom tepelnej roz\u0165a\u017enosti, \u010do znamen\u00e1, \u017ee jeho roz\u0165ahovanie alebo zmr\u0161\u0165ovanie sa pri zmen\u00e1ch teploty alebo chladu v\u00fdrazne nemen\u00ed, \u010do pom\u00e1ha zni\u017eova\u0165 nap\u00e4tie sp\u00f4soben\u00e9 teplotn\u00fdmi gradientmi, ktor\u00e9 by mohli ma\u0165 za n\u00e1sledok praskanie alebo l\u00e1manie zariaden\u00ed, a z\u00e1rove\u0148 umo\u017e\u0148uje umiestni\u0165 viac tranzistorov na jednu do\u0161ti\u010dku - obe tieto vlastnosti s\u00fa d\u00f4le\u017eit\u00e9 pre zv\u00fd\u0161enie spo\u013eahlivosti v\u00fdroby \u010dipov.<\/p>\n
Karbid krem\u00edka m\u00e1 n\u00edzky koeficient tepelnej roz\u0165a\u017enosti, \u010do znamen\u00e1, \u017ee sa pri zmene teploty tak v\u00fdrazne neroz\u0165ahuje ani nezmen\u0161uje, \u010do z neho rob\u00ed ide\u00e1lny materi\u00e1l pre aplik\u00e1cie vy\u017eaduj\u00face vysok\u00fd stupe\u0148 stability, ako s\u00fa mobiln\u00e9 telef\u00f3ny a in\u00e9 elektronick\u00e9 zariadenia. Okrem toho karbid krem\u00edka znesie extr\u00e9mne teploty a z\u00e1rove\u0148 odol\u00e1va chemick\u00fdm \u00fatokom.<\/p>\n
Potravin\u00e1rsky silik\u00f3nov\u00fd kau\u010duk je nielen netoxick\u00fd, ale m\u00f4\u017ee sa pou\u017e\u00edva\u0165 aj pri v\u00fdrobe potrav\u00edn. Okrem toho sa pou\u017e\u00edva na r\u00f4zne \u00fa\u010dely, od \u017eiaruvzdorn\u00fdch v\u00fdmuroviek a izola\u010dn\u00fdch komponentov pre priemyseln\u00e9 pece a\u017e po trecie lo\u017eisk\u00e1 a mechanick\u00e9 tesnenia v potrubn\u00fdch syst\u00e9moch.<\/p>\n
V\u00fdrobcovia vyr\u00e1baj\u00fa kubick\u00e9 pl\u00e1tky karbidu krem\u00edka zahrievan\u00edm kremi\u010dit\u00e9ho piesku s ropn\u00fdm koksom alebo in\u00fdm zdrojom uhl\u00edka na vysok\u00e9 teploty v otvorenej \"Achesonovej\" peci, pri\u010dom vznik\u00e1 zelen\u00fd alebo \u010dierny kry\u0161talick\u00fd karbid krem\u00edka vysokej \u010distoty. Niektor\u00ed v\u00fdrobcovia pou\u017e\u00edvaj\u00fa na v\u00fdrobu kubick\u00e9ho karbidu krem\u00edka aj chemick\u00e9 naparovanie; obe met\u00f3dy spotrebuj\u00fa obrovsk\u00e9 mno\u017estvo energie a zariaden\u00ed.<\/p>\n
Karbid krem\u00edka je zn\u00e1my svojou mimoriadnou pru\u017enos\u0165ou a odolnos\u0165ou vo\u010di teplotn\u00fdm \u0161okom, \u010do znamen\u00e1, \u017ee n\u00e1hle zmeny teploty ho nepraskn\u00fa a neved\u00fa k n\u00e1hlym zlomom alebo prasklin\u00e1m. V\u010faka tomu je karbid krem\u00edka vynikaj\u00facou vo\u013ebou materi\u00e1lu pre zariadenia vy\u017eaduj\u00face vysok\u00fa odolnos\u0165 proti po\u0161kodeniu, ako s\u00fa v\u00fdkonov\u00e9 polovodi\u010de; okrem toho sa m\u00f4\u017ee pochv\u00e1li\u0165 ni\u017e\u0161\u00edm odporom pri zapnut\u00ed a celkov\u00fdm n\u00e1bojom hradla, \u010do umo\u017e\u0148uje vy\u0161\u0161iu r\u00fdchlos\u0165 sp\u00ednania s vy\u0161\u0161ou \u00fa\u010dinnos\u0165ou.<\/p>\n
Karbid krem\u00edka sa vyr\u00e1ba kombin\u00e1ciou krem\u00edka a uhl\u00edka a m\u00f4\u017ee ma\u0165 r\u00f4zne kry\u0161talick\u00e9 \u0161trukt\u00fary. Karbid krem\u00edka alfa m\u00e1 najroz\u0161\u00edrenej\u0161ie pou\u017eitie, preto\u017ee jeho hexagon\u00e1lna kry\u0161t\u00e1lov\u00e1 \u0161trukt\u00fara napodob\u0148uje wurtzit. Modifik\u00e1cia beta so svojou kry\u0161t\u00e1lovou \u0161trukt\u00farou zinku blende m\u00f4\u017ee by\u0165 menej roz\u0161\u00edren\u00e1, ale st\u00e1le m\u00e1 nieko\u013eko aplik\u00e1ci\u00ed.<\/p>\n
Substr\u00e1ty z karbidu krem\u00edka s\u00fa potrebn\u00e9 na v\u00fdrobu mnoh\u00fdch zlo\u017eit\u00fdch polovodi\u010dov\u00fdch zariaden\u00ed a musia by\u0165 vhodne pripraven\u00e9, aby umo\u017e\u0148ovali epitaxn\u00fd rast s vysokou \u00farov\u0148ou presnosti a konzistencie. Na splnenie tejto \u00falohy sa na epitaxn\u00fd rast pou\u017e\u00edva le\u0161tiaca suspenzia na b\u00e1ze diamantu a le\u0161tiaca podlo\u017eka, ktor\u00e1 zodpoved\u00e1 \u0161pecifick\u00fdm n\u00e1strojom in\u0161talovan\u00fdm v zariadeniach z\u00e1kazn\u00edkov.<\/p>\n
Karbid krem\u00edka pon\u00faka v\u00fdnimo\u010dn\u00fa odolnos\u0165 vo\u010di tepeln\u00fdm \u0161okom v\u010faka svojej vynikaj\u00facej tepelnej vodivosti a n\u00edzkej roz\u0165a\u017enosti, v\u010faka \u010domu je vhodn\u00fd na odol\u00e1vanie teplot\u00e1m, ktor\u00e9 dosahuj\u00fa extr\u00e9mne vysok\u00e9 teploty bez straty pevnosti. V\u010faka svojim vlastnostiam s\u00fa vhodn\u00e9 na pou\u017eitie ako podpery pre z\u00e1sobn\u00edky pl\u00e1tkov alebo lopatky v elektrick\u00fdch peciach a s\u00fa dokonca odoln\u00e9 vo\u010di kyselin\u00e1m alebo roztaven\u00fdm soliam.<\/p>\n
Karbid krem\u00edka je \u010doraz ob\u013e\u00fabenej\u0161\u00edm materi\u00e1lom pre br\u00fasne n\u00e1stroje, ako s\u00fa rezn\u00e9 kot\u00fa\u010de a br\u00fasne kot\u00fa\u010de, v\u010faka svojej odolnosti vo\u010di kor\u00f3zii, abr\u00e1zii a er\u00f3zii. Zlievarne pou\u017e\u00edvaj\u00fa t\u00e9gliky z karbidu krem\u00edka na tavenie kovov v zlievar\u0148ach; jeho fyzik\u00e1lne vlastnosti, ako aj v\u00fdnimo\u010dn\u00e9 elektronick\u00e9 vlastnosti z neho robia vhodn\u00e9ho kandid\u00e1ta pre energetick\u00e9 zariadenia.<\/p>\n
Pri n\u00e1kupe krem\u00edkov\u00fdch karbidov\u00fdch do\u0161ti\u010diek je ve\u013emi d\u00f4le\u017eit\u00e9 pos\u00fadi\u0165 ich kry\u0161t\u00e1lov\u00fa morfol\u00f3giu a hustotu defektov, preto\u017ee to ovplyv\u0148uje v\u00fdkon zariadenia. Okrem toho by sa nemal zanedba\u0165 v\u00fdber \u00fa\u010dinn\u00e9ho procesu dopovania pre 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\/sk\/wp-json\/wp\/v2\/posts\/46","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/siliconcarbideceramic.net\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/siliconcarbideceramic.net\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/sk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/sk\/wp-json\/wp\/v2\/comments?post=46"}],"version-history":[{"count":1,"href":"https:\/\/siliconcarbideceramic.net\/sk\/wp-json\/wp\/v2\/posts\/46\/revisions"}],"predecessor-version":[{"id":47,"href":"https:\/\/siliconcarbideceramic.net\/sk\/wp-json\/wp\/v2\/posts\/46\/revisions\/47"}],"wp:attachment":[{"href":"https:\/\/siliconcarbideceramic.net\/sk\/wp-json\/wp\/v2\/media?parent=46"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/sk\/wp-json\/wp\/v2\/categories?post=46"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/sk\/wp-json\/wp\/v2\/tags?post=46"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}