Chiyambi chaSilicon Carbide
Silicon carbide (SIC) ili ndi kachulukidwe ka 3.2g/cm3. Silicon carbide yachilengedwe ndi yosowa kwambiri ndipo imapangidwa makamaka pogwiritsa ntchito njira yopangira. Malinga ndi magulu osiyanasiyana a kapangidwe ka kristalo, silicon carbide imatha kugawidwa m'magulu awiri: α SiC ndi β SiC. Semiconductor ya m'badwo wachitatu yomwe imayimiridwa ndi silicon carbide (SIC) ili ndi ma frequency apamwamba, magwiridwe antchito apamwamba, mphamvu zambiri, kukana kuthamanga kwambiri, kukana kutentha kwambiri komanso kukana kwamphamvu kwa radiation. Ndi yoyenera pazosowa zazikulu zankhondo zosungira mphamvu ndi kuchepetsa utsi, kupanga mwanzeru komanso chitetezo cha chidziwitso. Ndi kuthandizira zatsopano ndi chitukuko chodziyimira pawokha komanso kusintha kwa kulumikizana kwa mafoni am'badwo watsopano, magalimoto atsopano amagetsi, sitima zapamtunda zothamanga kwambiri, intaneti yamagetsi ndi mafakitale ena. Zipangizo zoyambira zosinthidwa ndi zida zamagetsi zakhala cholinga chachikulu cha ukadaulo wapadziko lonse wa semiconductor ndi mpikisano wamakampani. Mu 2020, machitidwe azachuma ndi malonda padziko lonse lapansi ali munthawi yokonzanso, ndipo chilengedwe chamkati ndi chakunja cha chuma cha China ndi chovuta komanso chovuta, koma makampani a semiconductor a m'badwo wachitatu padziko lonse lapansi akukula motsutsana ndi zomwe zikuchitika. Ziyenera kudziwika kuti makampani a silicon carbide alowa gawo latsopano la chitukuko.
Silikoni kabidentchito
Kugwiritsa ntchito silicon carbide mumakampani a semiconductor, unyolo wamakampani a silicon carbide semiconductor umaphatikizapo ufa woyera kwambiri wa silicon carbide, substrate imodzi ya kristalo, epitaxial, chipangizo chamagetsi, ma CD a module ndi ntchito yomaliza, ndi zina zotero.
1. Chigawo cha kristalo chimodzi ndi zinthu zothandizira, zinthu zoyendetsera magetsi ndi gawo la kukula kwa epitaxial la semiconductor. Pakadali pano, njira zokulira za SiC single crystal zikuphatikizapo kusamutsa mpweya wa thupi (PVT), gawo lamadzimadzi (LPE), kuyika kwa nthunzi ya mankhwala otentha kwambiri (htcvd) ndi zina zotero. 2. Chipepala cha epitaxial silicon carbide cha epitaxial chimatanthauza kukula kwa filimu imodzi ya kristalo (epitaxial layer) yokhala ndi zofunikira zina komanso momwe imayendera mofanana ndi gawo lapansi. Pogwiritsidwa ntchito, zida za semiconductor za wide band gap zili pafupifupi zonse pa gawo la epitaxial, ndipo silicon carbide chips zokha zimagwiritsidwa ntchito ngati magawo, kuphatikiza zigawo za Gan epitaxial.
3. kuyera kwambiriSiCUfa ndi chinthu chopangira kukula kwa silicon carbide single crystal pogwiritsa ntchito njira ya PVT. Kuyera kwa zinthu zake kumakhudza mwachindunji kukula kwa kristalo imodzi ya SiC komanso mphamvu zamagetsi.
4. Chipangizo chamagetsi chimapangidwa ndi silicon carbide, chomwe chili ndi mawonekedwe oletsa kutentha kwambiri, ma frequency ambiri komanso magwiridwe antchito apamwamba. Malinga ndi mawonekedwe ogwirira ntchito a chipangizocho,SiCZipangizo zamagetsi zimaphatikizapo ma diode amphamvu ndi machubu osinthira magetsi.
5. Mu ntchito ya semiconductor ya m'badwo wachitatu, ubwino wa ntchito yomaliza ndi wakuti imatha kuwonjezera semiconductor ya GaN. Chifukwa cha ubwino wa mphamvu yosinthira kwambiri, kutentha kochepa komanso kupepuka kwa zipangizo za SiC, kufunikira kwa makampani otsika mtengo kukupitirirabe kukula, komwe kuli ndi chizolowezi chosintha zida za SiO2. Mkhalidwe wamakono wa chitukuko cha msika wa silicon carbide ukupita patsogolo nthawi zonse. Silicon carbide ikutsogolera ntchito ya msika wa chitukuko cha semiconductor ya m'badwo wachitatu. Zogulitsa za semiconductor za m'badwo wachitatu zalowetsedwa mwachangu, minda yogwiritsira ntchito ikukula nthawi zonse, ndipo msika ukukula mofulumira ndi chitukuko cha zamagetsi zamagalimoto, kulumikizana kwa 5g, magetsi ochaja mwachangu komanso kugwiritsa ntchito asilikali.
Nthawi yotumizira: Marichi-16-2021