Tlhahisong ea sejoale-joale ea li-semiconductor, tsamaiso ea mocheso ke e 'ngoe ea lintlha tse nang le tšusumetso e kholo tse amang boleng ba kristale, ho tšoana ha epitaxial, le botsitso ba ts'ebetso ka kakaretso. Ebang ke ho hlahisa li-wafer tsa silicon tse monocrystalline, ho holisa likristale tsa silicon carbide (SiC), kapa ho beha lifilimi tsa semiconductor tse kopaneng, ho boloka tikoloho ea mocheso e laoloang haholo ho bohlokoa bakeng sa ho fihlela thepa e tsitsitseng ea thepa le chai e ngata ea tlhahiso.
Bohareng ba litsamaiso tsena tsa mocheso o phahameng keHeater ea Graphite e Hloekileng Haholo. Le hoja hangata e patiloe ka hare ho dionto tsa kgolo ya kristale kapa di-reactor tsa deposition, karolo ena e sebetsa e le mohlodi wa mantlha wa mocheso le karolo ya bohlokwa ya tshimo ya mocheso. Bohloeki ba yona ba thepa, moralo wa sebopeho, le botsitso ba nako e telele di susumetsa kabo ya mocheso ka kotloloho, bokgoni ba matla, le botshepehi ba disebediswa. Ha tlhahiso ya di-semiconductor e ntse e tswela pele ho ya ho di-wafer tse kgolo, thepa e pharaletseng ya lekhalo, le difensetere tsa tshebetso tse batlang di le boima haholo, theknoloji ya graphite heater e fetohile ntlha ya bohlokwa e thusang tshebetsong e tswetseng pele ya mocheso.
Litšobotsi tsa Boitsebiso
Ho fapana le dielemente tse tlwaelehileng tsa ho futhumatsa tsa tshepe,Li-heater tsa Graphite tse Hloekileng Haholokopanya motlakase o motle haholo le ts'ebetso e ikhethang ea mocheso tlas'a mocheso o feteletseng. Li entsoe ka graphite e ntle ea isostatic 'me li hloekisitsoe ho latela maemo a semiconductor-grade, hangata li-heater tsena li na le maemo a manyane feela a litšila tsa tšepe, e leng se fokotsang kotsi ea tšilafalo nakong ea kholo ea kristale le ts'ebetso ea wafer.
Graphite e boetse e bonts'a ho tsamaisa mocheso ho phahameng le ho hanyetsa ka tsela e ikhethang ho ts'oha ha mocheso, e lumellang ho futhumatsa le ho pholisa ka potlako ntle le ho fetoha ho hoholo ha sebopeho. Coefficient ea eona e tlase haholo ea katoloso ea mocheso e thusa ho boloka ho nepahala ha litekanyo ho pholletsa le potoloho e pheta-phetoang ea mocheso, ha bokhoni ba eona ba ho sebetsa bo nolofalletsa li-geometri tse rarahaneng tsa hitara tse ntlafalitsoeng bakeng sa meralo e fapaneng ea sebōpi.
Bakeng sa ditikoloho tse matla haholo tsa ho sebetsana le disebediswa, di-heater tsa graphite di atisa ho sireletswa ke di-coat tsa silicon carbide (SiC) kapa tantalum carbide (TaC). Di-coat tsena tse tswetseng pele di ntlafatsa ho hanyetsa oxidation, di fokotsa tlhahiso ya dikarolwana, mme di eketsa nako ya bophelo ba dikarolo, haholoholo maemong a tshebetso a nang le haeterojene e ngata kapa a nang le halogen a sebediswang haholo tlhahisong ya semiconductor.
Mesebetsi Tlhahisong ea Semiconductor
Sefuthumatsi sa graphite se etsa ho fetang mosebetsi oa motheo oa ho hlahisa mocheso. Ka har'a lisebelisoa tsa semiconductor, se sebetsa e le motheo oa tšimo eohle ea mocheso, se khethollang hore na matla a mocheso a ajoa joang ho pholletsa le kamore ea ts'ebetso.
Ditsamaisong tsa Phetisetso ya Mouoane wa Mmele (PVT) tse sebediswang bakeng sa kgolo ya kristale ya silicon carbide, di-heater tsa graphite di theha maemo a mocheso a hlokahalang bakeng sa sublimation le ho tsamaiswa ha thepa ya mohlodi wa SiC. Maemo a tsitsitseng a ho futhumatsa a kgothaletsa kgolo e laolwang ya kristale ha ka nako e ts'oanang a fokotsa kgatello ya mocheso, ho thehwa ha micropipe, le diphoso tse ding tsa kristale tse amang boleng ba wafer ka ho toba.
Nakong ea kholo ea kristale ea silicon ea Czochralski (CZ), li-heater tsa graphite li sebetsa 'moho le ho kenya graphite, li-crucible tsa quartz, le lithebe tsa mocheso ho boloka tikoloho e tsitsitseng ea silicon e qhibilihisitsoeng. Tshebetso ea tsona e susumetsa ho qhibiliha ha convection, botsitso ba sebopeho se tiileng-mokelikeli, taolo ea bophara ba kristale, le kabo ea oksijene ka har'a kristale e ntseng e hola.
Li-heater tsa graphiteLi bohlokoa ka ho lekana ho khemikhale vapor deposition (CVD), epitaxial growth, le processes e tsoetseng pele ea ceramic sintering. Lits'ebetsong tsena, kabo ea mocheso o ts'oanang e bohlokoa bakeng sa ho fihlela botenya bo tsitsitseng ba filimi, kinetics ea karabelo e laoloang, le thepa ea thepa e ka phetoang. Ha lisebelisoa tsa semiconductor li ntse li tsoela pele ho fokotseha ha bophara ba wafer bo ntse bo eketseha, esita le lintho tse nyane tse sa ts'oaneng tsa mocheso li ka ama chai ea tlhahiso haholo, e leng se etsang hore ts'ebetso ea heater e be ea bohlokoa le ho feta.
Mekhoa e Tloaelehileng ea ho Hlōleha
Ho sa tsotellehe ts'ebetso ea tsona e ntle haholo mochesong o phahameng, li-heater tsa graphite ke likarolo tse ka sebelisoang tse senyehang butle-butle tlas'a maemo a nako e telele a ts'ebetso. Ho utloisisa mekhoa ea mantlha ea ho hloleha ho bohlokoa bakeng sa ho ntlafatsa kemiso ea tlhokomelo le ho ntlafatsa ts'epo ea lisebelisoa.
E 'ngoe ea lisosa tse tloaelehileng tsa ho senyeha ha lintho ke oxidation. Leha graphite e lula e tsitsitse libakeng tse sa sebetseng kapa tse se nang letho, ho pepesehela oksijene mochesong o phahameng ho ja thepa butle-butle, ho fokotsa matla a mechini le ho khutsufatsa bophelo ba ts'ebeletso. Ka hona, taolo e nepahetseng ea sepakapaka le liphahlo tse sireletsang lia hlokahala bakeng sa ho fokotsa tšenyo e amanang le oxidation.
Mokhathala o mong o bakoang ke mocheso ke bothata bo bong bo boholo. Mekhahlelo e pheta-phetoang ea ho futhumatsa le ho pholisa e hlahisa likhatello tsa ka hare tse ka qetellang li lebisa ho thehoeng ha mapetso a manyenyane kapa ho fetoha ha sebaka. Ha li-geometri tsa heater li ntse li rarahana haholoanyane bakeng sa ntlafatso e tsoetseng pele ea tšimo ea mocheso, moralo o hlokolosi oa sebopeho o ba oa bohlokoa haholo ho fokotsa khatello ea maikutlo.
Lisebelisoang tsa ho beha le tsa epitaxy, ho bola ha lik'hemik'hale ho bakoang ke haeterojene, li-precursor tsa silicon tse nang le chlorine, likhase tse nang le fluorine, kapa mefuta e meng e arabelang butle-butle li ka senya bokaholimo ba graphite bo pepesitsoeng. Ho senyeha ha bokaholimo ha ho ame feela katleho ea mocheso empa hape ho eketsa monyetla oa ho hlahisa likaroloana, ho hlahisa likotsi tsa tšilafalo ka har'a kamore ea ts'ebetso.
Ts'ebetso ea nako e telele e ka boela ea fella ka ho sisinyeha ha khanyetso ea motlakase ha sebopeho sa graphite se ntse se fetoha tlas'a mocheso o phahameng o tsoelang pele. Liphetoho khanyetsong ea motlakase li fetola litšobotsi tsa ho futhumatsa, tse ka amang ho tšoana ha mocheso le ho pheta-pheta ha ts'ebetso. Ka hona, tlhokomelo ea kamehla ea ts'ebetso ea motlakase e fetohile karolo ea bohlokoa ea tlhokomelo ea thibelo tlhahisong ea semiconductor ea bongata bo phahameng.
Nts'etsopele ea Bokamoso
Ha indasteri ea semiconductor e ntse e tsoela pele ho ea ho bophara bo boholo ba kristale, thepa e pharaletseng ea lekhalo, le lits'ebetso tse rarahaneng tsa mocheso, theknoloji ea heater ea graphite e ntse e tsoela pele ho fetoha.
Mahlale a ho hlwekisa thepa a fokotsa ditshila tsa tshepe tse sa reng letho ho isa maemong a tlase le ho feta, a tshehetsa ditshebediso tse amehang ke tshilafatso jwalo ka kgolo ya kristale ya SiC le tlhahiso e tswetseng pele ya disebediswa tsa logic. Ho sa le jwalo, dintlafatso tsa ts'ebetso ya graphite ya isostatic di hlahisa dibopeho tse nyane tse ntle le tse tshwanang haholoanyane tse fanang ka botsitso bo ntlafetseng ba mechini le nako e telele ya tshebetso.
Boenjiniere bo tsoetseng pele ba bokaholimo bo fetohile tataiso e 'ngoe e kholo ea nts'etsopele. Li-heater tsa graphite tse koahetsoeng ka SiC le tse koahetsoeng ka TaC li ntse li nkela graphite e sa koahetsoeng sebaka ka ho eketsehileng libakeng tse thata tsa ts'ebetso hobane li fana ka khanyetso e phahameng ea mafome, tlhahiso e fokotsehileng ea likaroloana, le bohloeki bo ntlafetseng ba ts'ebetso. Ka nako e ts'oanang, ketsiso ea tšimo ea mocheso oa dijithale e sebelisang tlhahlobo ea finite element (FEA) le matla a mokelikeli oa lik'homphieutha (CFD) e nolofalletsa baenjiniere ho ntlafatsa geometry ea heater ka ho nepahala ho sa tloaelehang, e leng se fellang ka ho tšoana ha mocheso le boleng bo phahameng ba kristale.
Hobaneng o Khetha Matla a VET
Ka ho sebelisa boiphihlelo ba eona bo tebileng thepa ea mocheso o phahameng le mahlale a tsoetseng pele a tlhahiso ea ho nepahala,Matla a VETe ikemiselitse ho fana ka lihitara tsa graphite tse hloekileng haholo tse fihlelang litlhoko tse ntseng li hola tsa indasteri ea kholo ea kristale ea semiconductor le kalafo ea mocheso. Sehlopha sa rona sa boenjiniere se sebetsa haufi-ufi le bahlahisi ba lisebelisoa, litsi tsa lipatlisiso, le bahlahisi ba thepa ea semiconductor ho nts'etsapele litharollo tsa lihitara tse fanang ka ho tšoana ho ikhethang ha mocheso, botsitso ba sebopeho, le ts'epo ea ts'ebetso ea nako e telele.
Ea ronali-heater tsa graphiteLi etsoa ka graphite ea boleng bo holimo, e nang le lithollo tse ntle tsa isostatic 'me li hloekisoa ka thata le ho etsoa ka mokhoa o nepahetseng. Li etselitsoe ka ho khetheha lits'ebetso tse hlokang tlhokomelo e kholo, ho kenyeletsoa kholo ea kristale ea SiC PVT, kholo ea kristale ea silicon ea Czochralski (CZ), CVD epitaxy, sintering e tsoetseng pele ea ceramic, le lits'ebetso tse ling tsa semiconductor tsa mocheso o phahameng. Bakeng sa libaka tse hlokang tlhokomelo e kholo, re boetse re fana ka li-heater tsa graphite tse koahetsoeng ka SiC le TaC, tse fanang ka khanyetso e ntlafalitsoeng ea oxidation, khanyetso e phahameng ea mafome, tlhahiso e fokotsehileng ea likaroloana, le bophelo bo bolelele ba ts'ebeletso.
Ebang o ntse o ntshetsa pele disebediswa tse ntjha tsa kgolo ya kristale, o ntlafatsa ditsamaiso tse teng tsa tshimo ya mocheso, kapa o batla mofani ya tshepahalang wa dikarolo tsa graphite tse ikgethileng, VET Energy e tla tshehetsa projeke ya hao ka boiphihlelo ba boenjiniere ba profeshenale le tshebeletso ya botekgeniki e arabelang.
Ikopanye le sehlopha sa ronakajeno ho buisana ka litlhoko tsa hau tsa kopo, ho kopa puisano ea tekheniki, kapa ho fumana litharollo tse etselitsoeng ka ho khetheha ts'ebetso ea hau ea semiconductor. Ka ho sebetsa 'moho, re ka theha litsamaiso tsa mocheso tse sebetsang hantle, tse tšepahalang le tse sa senyeheng nakong e tlang bakeng sa tlhahiso e tsoetseng pele ea semiconductor.
Nako ea poso: Phupu-03-2026