Semiconductor mudziyo ndiyo musimboti wezvigadzirwa zvemazuva ano zvemuchina weindasitiri, unoshandiswa zvakanyanya mumakombuta, zvemagetsi zvevatengi, network network, mota dzemagetsi, nedzimwe nzvimbo dzepakati, iyo semiconductor indasitiri inonyanya kuumbwa nezvikamu zvina zvakakosha: maseketi akabatanidzwa, optoelectronic zvishandiso, discrete mudziyo, sensor, iyo inoverengera anopfuura 80% emasekete akabatanidzwa uye akabatanidzwa semicondu equinductor.
Yakabatanidzwa yedunhu, zvinoenderana nechikamu chechigadzirwa inonyanya kukamurwa kuita zvikamu zvina: microprocessor, memory, logic zvishandiso, simulator zvikamu. Zvisinei, nekuenderera mberi kwekuwedzera kwemunda wekushandiswa kwezvigadzirwa zve semiconductor, nguva dzakawanda dzinokosha dzinoda kuti semiconductors vakwanise kutevedzera kushandiswa kwekushisa kwepamusoro, nemwaranzi yakasimba, simba guru uye mamwe mamiriro ezvinhu, hazvikuvadzi, chizvarwa chekutanga uye chechipiri chezvigadzirwa zve semiconductor hazvina simba, saka chizvarwa chechitatu chezvigadzirwa zve semiconductor zvakavapo.
Parizvino, iyo yakakura bhendi gap semiconductor zvinhu zvinomiririrwa nesilicon carbide(SiC), gallium nitride (GaN), zinc oxide (ZnO), dhaimondi, aluminium nitride (AlN) inogara mumusika wakakura nemabhenefiti makuru, pamwe chete anonzi chizvarwa chechitatu semiconductor zvinhu. Chizvarwa chechitatu chemidziyo yesemiconductor ine yakafara bhendi gap upamhi, iyo yakakwira yekuputsika kwemagetsi munda, kupisa kwemagetsi, chiyero chemagetsi chakazara uye kugona kwepamusoro kurwisa mwaranzi, yakakodzera kugadzira tembiricha yepamusoro, yakakwirira frequency, kuramba nemwaranzi uye yakakwirira simba zvishandiso, zvinowanzozivikanwa seyakafara bandgap semiconductor zvinhu (yakarambidzwa bhendi upamhi yakakura kupfuura 2.2 eV tembiricha zvakare). Kubva pakutsvagisa kwazvino pane yechitatu-chizvarwa semiconductor zvinhu nemidziyo, silicon carbide uye gallium nitride semiconductor zvinhu zvakakura, uyesilicon carbide tekinorojindiyo yakanyanya kukura, nepo tsvagiridzo yezinc oxide, diamondi, aruminiyamu nitride uye zvimwe zvinhu zvichiri mudanho rekutanga.
Zvishandiso uye Zvinhu Zvazvo:
Silicon carbidezvinhu zvinowanzoshandiswa ceramic bhora mabhengi, mavharuvhu, semiconductor zvinhu, gyros, kuyera zviridzwa, aerospace uye mamwe minda, yava chinhu irreplaceable mundima dzakawanda maindasitiri.
SiC imhando yechisikigo superlattice uye yakajairika homogeneous polytype. Kune anopfuura mazana maviri (ari kuzivikanwa parizvino) homotypic polytypic mhuri nekuda kwekusiyana kwekurongedza kutevedzana pakati peSi uye C diatomic layers, iyo inotungamira kune akasiyana makristasi zvimiro. Naizvozvo, SiC yakanyatsokodzera chizvarwa chitsva chechiedza emitting diode (LED) substrate material, yakakwirira simba zvemagetsi zvinhu.
| hunhu | |
| pfuma chaiyo | Kuoma kwepamusoro (3000kg / mm), kunogona kucheka ruby |
| High kupfeka resistance, yechipiri chete kune diamond | |
| Thermal conductivity iri 3 nguva yakakwirira kupfuura iyo yeSi uye 8 ~ 10 nguva yakakwirira kupfuura iyo yeGaAs. | |
| Kugadzikana kwekushisa kweSiC kwakakwirira uye hazvibviri kunyunguduka pamhepo yemhepo | |
| Kushanda kwakanaka kwekupisa kupisa kwakakosha zvakanyanya kune yakakwirira-simba zvishandiso | |
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makemikari pfuma | Kuramba kwakasimba kwecorrosion, inoshingirira kunenge chero ipi zvayo inozivikanwa inokuvadza patembiricha yekamuri |
| SiC pamusoro inoisa nyore oxidize kuumba SiO, nhete yakatsetseka, inogona kudzivirira kuwedzera kwayo oxidation, mukati Pamusoro pe1700 ℃, iyo oxide firimu inonyunguduka uye oxidize nekukurumidza | |
| Iyo bandgap ye4H-SIC uye 6H-SIC ingangoita 3 nguva iyo yeSi uye 2 nguva iyo yeGaAs: Iyo yekuputsika yemagetsi munda intensity ihurongwa hwehukuru hwepamusoro kupfuura Si, uye electron drift velocity yakazara. Kaviri nehafu Si. Iyo bandgap ye4H-SIC yakakura kupfuura iyo ye6H-SIC |
Nguva yekutumira: Aug-01-2022