Sesebelisoa sa semiconductor ke setsi sa lisebelisoa tsa mochini oa sejoale-joale, se sebelisoang haholo likhomphutha, lisebelisoa tsa elektroniki tsa bareki, likhokahano tsa marang-rang, lisebelisoa tsa elektroniki tsa likoloi le libaka tse ling tsa mantlha, indasteri ea semiconductor e entsoe haholo ka likarolo tse 'ne tsa mantlha: lipotoloho tse kopaneng, lisebelisoa tsa optoelectronic, sesebelisoa sa discrete, sensor, e ikarabellang ho feta 80% ea lipotoloho tse kopantsoeng, hangata le semiconductor le seketsoana se kopaneng sa potoloho.
Potoloho e kopantsoeng, ho latela sehlopha sa sehlahisoa e arotsoe haholo ka mekhahlelo e mene: microprocessor, memori, lisebelisoa tsa logic, likarolo tsa simulator. Leha ho le joalo, ka ho atolosoa ho tsoelang pele ha tšimo ea ts'ebeliso ea lisebelisoa tsa semiconductor, liketsahalo tse ngata tse khethehileng li hloka hore li-semiconductors li khone ho khomarela tšebeliso ea mocheso o phahameng, mahlaseli a matla, matla a phahameng le libaka tse ling, li se ke tsa senya moloko oa pele le oa bobeli. lisebelisoa tsa semiconductor ha li na matla, kahoo moloko oa boraro oa lisebelisoa tsa semiconductor o bile teng.
Hajoale, lisebelisoa tsa semiconductor tsa semiconductor tse pharaletseng tsa sehlopha se emeloa kesilicon carbide(SiC), gallium nitride (GaN), zinc oxide (ZnO), daemane, aluminium nitride (AlN) li lula 'marakeng o hlahelletseng ka melemo e meholo, ka kakaretso e bitsoang lisebelisoa tsa semiconductor tsa moloko oa boraro. Moloko oa boraro oa thepa ea semiconductor e nang le lekhalo le pharaletseng la lekhalo, e phahamisa tšimo ea motlakase ea ho senyeha, mocheso oa motlakase, tekanyo ea elektronike e tletseng matla le bokhoni bo phahameng ba ho hanyetsa mahlaseli, ho loketse ho etsa mocheso o phahameng, maqhubu a phahameng, ho hanyetsa mahlaseli le lisebelisoa tse phahameng tsa matla. , eo hangata e tsejoang e le lisebelisoa tse pharaletseng tsa semiconductor (bophara bo hanetsoeng bo boholo ho feta 2.2 eV), eo hape e bitsoang mocheso o phahameng lisebelisoa tsa semiconductor. Ho tsoa lipatlisisong tsa hajoale mabapi le lisebelisoa le lisebelisoa tsa semiconductor tsa moloko oa boraro, lisebelisoa tsa silicon carbide le gallium nitride semiconductor li hōlile haholoanyane, 'me.theknoloji ea silicon carbideke eona e hōlileng ka ho fetisisa, ha lipatlisiso tsa zinki oxide, taemane, aluminium nitride le lisebelisoa tse ling li ntse li le boemong ba pele.
Thepa le Thepa ea bona:
Silicon carbidethepa e sebelisoa haholo ka ceramic dibering bolo, li-valve, thepa ea semiconductor, gyros, lisebelisoa tsa ho lekanya, sefofane le masimo a mang, e fetohile thepa e ke keng ea nkeloa sebaka masimong a mangata a indasteri.
SiC ke mofuta oa superlattice ea tlhaho le mofuta o tloaelehileng oa homogeneous polytype. Ho na le malapa a fetang 200 (a tsejoang hona joale) homotypic polytypic ka lebaka la phapang ea tatellano ea ho paka pakeng tsa Si le C diatomic layers, e lebisang meahong e fapaneng ea kristale. Ka hona, SiC e loketse haholo bakeng sa moloko o mocha oa lisebelisoa tsa substrate diode (LED), matla a phahameng a lisebelisoa tsa elektronike.
sebopeho | |
thepa e bonahalang | Boima bo phahameng (3000kg / mm), bo ka khaola ruby |
Khanyetso e phahameng ea ho apara, ea bobeli feela ho daemane | |
Thermal conductivity ke makhetlo a 3 a phahameng ho feta a Si le 8 ~ 10 makhetlo a phahameng ho feta a GaAs. | |
Ho tsitsa ha mocheso oa SiC ho phahame 'me ho ke ke ha khoneha ho qhibiliha ka khatello ea sepakapaka | |
Ts'ebetso e ntle ea ho senya mocheso ke ea bohlokoa haholo bakeng sa lisebelisoa tse matla haholo | |
thepa ea lik'hemik'hale | Khanyetso e matla haholo ea kutu, e hanyetsanang le hoo e batlang e le ntho efe kapa efe e tsebahalang e senyang mocheso oa kamore |
Sebaka sa SiC se na le oxidize habonolo ho theha SiO, lesela le tšesaane, le ka thibela oxidation ea eona e eketsehileng, ho Ka holimo ho 1700 ℃, filimi ea oxide e qhibiliha 'me e hlahisa oxidize ka potlako | |
Sehlopha sa 4H-SIC le 6H-SIC se ka ba makhetlo a 3 ho feta Si le makhetlo a 2 ho feta a GaAs: Ho senyeha ha tšimo ea motlakase ho matla ke taelo ea boholo bo phahameng ho feta Si, 'me lebelo la electron Drift le tletse. Ka makhetlo a mabeli le halofo ea Si. Sehlopha sa 4H-SIC se sephara ho feta sa 6H-SIC |
Nako ea poso: Aug-01-2022