Kwimveliso ye-semiconductor, ukucubungula ubushushu obuphezulu kubalulekile kumanyathelo okwenziwa kwe-wafer afana ne-oxidation, diffusion, annealing, kunye ne-LPCVD deposition. Ezi nkqubo zihlala zenziwa ngaphakathi kwiinkqubo ze-semiconductor furnace ezisebenza phakathi kwe-800°C kunye ne-1200°C, apho uzinzo lobushushu, ulawulo longcoliseko, kunye nokufana kwegesi kuchaphazela ngokuthe ngqo isivuno se-wafer kunye nokusebenza kwesixhobo.
Phakathi kwezinto ezibalulekileyo zesithando somlilo,Ityhubhu yokusasazeka kweSiC— ekwaziwa ngokuba yityhubhu yokusasazwa kwe-silicon carbide okanye ityhubhu yomlilo ye-SiC — idlala indima ephambili ekugcineni imeko-bume yenkqubo ezinzileyo. Xa kuthelekiswa neetyhubhu zomlilo ze-quartz zemveli, iityhubhu zokusasazwa kwe-SiC zibonelela ngokuqhuba okuphezulu kobushushu, amandla angcono oomatshini, kunye nokumelana okuphezulu kwiikhemistri ze-semiconductor ezinzima, nto leyo ezenza zibe zibaluleke ngakumbi kwimveliso ye-semiconductor ephucukileyo.
Yintoni iSiC Diffusion Tube?
Ityhubhu yokusasazwa kweSiC yigumbi le-ceramic eliyi-cylindrical elinobushushu obuphezulu elisetyenziswa ngaphakathi kwiinkqubo zokusasazwa kwe-semiconductor kunye neenkqubo ze-LPCVD furnace. Umsebenzi wayo oyintloko kukudala indawo ecocekileyo nezinzileyo yokusetyenziswa kwe-wafer.
Ngexesha lokusebenza, iinqanawa ze-wafer ezigcwele ii-wafer ze-silicon zibekwe ngaphakathi kwityhubhu ngelixa iigesi zenkqubo zihamba egumbini phantsi kweemeko zobushushu ezilawulwa ngononophelo. Ityhubhu yokusasazwa inceda ukugcina:
● Ukusasazwa kobushushu okuzinzileyo
●Ukuhamba kwegesi okufanayo
● Ungcoliseko oluphantsi lwamasuntswana
● Iimpendulo zeekhemikhali ezilawulwayo
Iityhubhu ze-SiC diffusion zisetyenziswa kakhulu kwezi:
●Iifeni zokusasazeka kwe-semiconductor
●Iinkqubo ze-LPCVD zomlilo
● Izixhobo zokunyibilikisa ubushushu
●Iinkqubo zokutsalela amanzi
Izicelo eziqhelekileyo ziquka:
● Ukuxiliswa kwesilicon
●Ukusasazwa kwephosphorus
● Ukusasazwa kweBoron
●Ukufakwa kwePolysilicon
●Ukufakwa kwe-silicon nitride
Kwizinto zanamhlanje ezisetyenziswa kwi-furnace, iimfuno zokufana kweenkqubo ze-furnace zingqongqo kakhulu. Umzekelo, iinkqubo ze-LPCVD eziphambili zinokufuna ukufana kobushushu be-wafer ngaphakathi kwe-±1°C ukuya kwi-±3°C kulo lonke indawo ye-furnace. Ukusebenza kobushushu betyhubhu yokusasazwa kuchaphazela ngokuthe ngqo obu buchule.
Kutheni iSilicon Carbide (SiC) isetyenziselwa iityhubhu zokusasaza
Ukusetyenziswa okukhulayo kweetyhubhu ze-silicon carbide diffusion kuvela kwiimpawu ezikhethekileyo zezinto zeSiC phantsi kweemeko zenkqubo ye-semiconductor yobushushu obuphezulu.
Enye yezona nzuzo zibalulekileyo kukuzinza kobushushu. I-SiC ingasebenza rhoqo kumaqondo obushushu angaphezu kwe-1200°C, ngelixa igcina ulwakhiwo lwayo luqinileyo ngexesha lokujikeleza kobushushu okuphindaphindiweyo.
Enye inzuzo ephambili kukukwazi ukuqhuba ubushushu. Ukwazi ukuqhuba ubushushu kweSiC kudla ngokuba malunga noku:
●120–200 W/m·K ye-SiC ecocekileyo kakhulu
●Xa kuthelekiswa ne-quartz kwi-~1.4 W/m·K kuphela
Lo mahluko ubalulekileyo uvumela ukudluliselwa kobushushu ngokukhawuleza nangokufanayo ngaphakathi kwesithando, nto leyo enceda ekuphuculeni ukuhambelana kwenkqubo ye-wafer ukusuka kwi-wafer ukuya kwi-wafer.
I-SiC ikwabonelela:
●Ukumelana kakuhle neegesi zenkqubo ezisekelwe kwi-chlorine kunye ne-fluorine
● Amandla aphezulu oomatshini kune-quartz
●Ukumelana ngcono noxinzelelo lobushushu
●Umngcipheko ophantsi wokuguquka ngexesha lemijikelo yemveliso ende
Ezi mpawu zenza iityhubhu ze-SiC furnace zifaneleke ngokukodwa kwiindawo eziphambili zokucubungula ubushushu be-semiconductor apho ixesha elide kunye nokuphindaphinda kwenkqubo ezinzileyo kubalulekile.
Ulwakhiwo kunye neempawu zoyilo lweeSiC Diffusion Tubes
Uninzi lweetyhubhu ze-semiconductor SiC diffusion zinesakhiwo esichanekileyo se-cylindrical esilungiselelwe iinkqubo ze-oven ezithe nkqo okanye ezithe tye.
Ngokungafaniyo neetyhubhu zeseramikhi eziqhelekileyo zoshishino, iityhubhu zeSiC zebanga le-semiconductor zifuna ukunyamezelana kokwenziwa okuqinileyo kuba utshintsho oluncinci lunokuchaphazela:
●Ixesha lokuhlala ngegesi
●Ukusasazwa kobushushu
●Isithuba seewafer
●Ukufaniswa kwesikhundla
Umgangatho womphezulu wangaphakathi nawo ubaluleke kakhulu. Imiphezulu ethambileyo necocekileyo kakhulu inceda ekunciphiseni:
●Ukuveliswa kwamasuntswana
● Ukuqokelelana kweentsalela
●Ungcoliseko lwesinyithi
Ezinye iityhubhu ze-furnace eziphambili zisebenzisa ii-CVD SiC coatings ukuphucula ngakumbi ukumelana nokugqwala kunye nobunyulu bomphezulu.
Ubukhulu bodonga kunye noyilo lwesakhiwo kufuneka zilinganisele ukusebenza kakuhle kobushushu kunye nokuqina koomatshini. Ngexesha lokucubungula i-semiconductor, iityhubhu ze-furnace zinokuba namava amakhulu okanye amawaka emijikelo yokufudumeza nokupholisa ngexesha lokusebenza kwazo.
Indima yeeSiC Diffusion Tubes kwiinkqubo zeSemiconductor
Kwimveliso ye-semiconductor, ityhubhu yokusasazwa kwe-SiC isebenza ngaphezu nje kwegumbi elibonakalayo. Ichaphazela ngokuthe ngqo uzinzo lwenkqubo kunye nomgangatho we-wafer.
Kwiinkqubo ze-thermal oxidation, ityhubhu inceda ukugcina ukuhamba kweoksijini okufanayo kunye nozinzo lobushushu, nto leyo ebalulekileyo ekuveliseni iifilimu ze-oxide ezikumgangatho ophezulu.
Kwiinkqubo zokusasazwa, ukuhamba kwegesi okuzinzileyo ngaphakathi kwityhubhu yeSiC kuxhasa ukusasazwa ngokuchanekileyo kwe-dopant kwi-phosphorus okanye i-boron diffusion.
Kwizicelo ze-LPCVD, ezifana ne-polysilicon kunye ne-silicon nitride deposition, i-thermal conductivity ye-SiC inceda ukuphucula ukufana kobukhulu befilimu kuyo yonke i-wafer batch.
Iingxaki Eziqhelekileyo Zeetyhubhu Zokusasazwa Kwe-SiC
Nangona i-SiC inika ukuqina okugqwesileyo, iityhubhu zokusasaza zisasoloko zigugile phantsi kweemeko zenkqubo ye-semiconductor.
Ingxaki eqhelekileyo kukungcoliswa kwamasuntswana okubangelwa kukwaluphala komphezulu okanye ukuqokelelwa kwentsalela yenkqubo. Ngokuhamba kwexesha, ukuvezwa rhoqo kwiikhemikhali ezishushu kakhulu kunokuwurhawuzelela umphezulu wangaphakathi kancinci kancinci, nto leyo eyandisa umngcipheko wokungcoliswa.
Ukuqhekeka kobushushu yenye ingxaki. Ukurhawuzelelwa kobushushu ngokukhawuleza okanye ukulayisha okungalinganiyo kwe-wafer kunokubangela uxinzelelo lobushushu olunokubangela ukuqhekeka okuncinci okanye ukungasebenzi kakuhle kwesakhiwo.
Ukukhukuliseka kweekhemikhali kusenokwenzeka nakwiindawo zokucoca ezisebenzisa i-halogen. Ukuvezwa ixesha elide kwiigesi ezine-fluorine kunokonakalisa kancinci umphezulu wetyhubhu kwaye kuchaphazele uzinzo lwenkqubo.
Kwiimeko zemveliso, le micimbi ingakhokelela koku:
●Ubushushu obuphantsi
● Ukungafaneki kwefilimu
●Ukwanda kokubalwa kwamasuntswana
●Ukuphindaphinda kwenkqubo okunciphileyo
Ngenxa yesi sizathu, ii-semiconductor fabs zihlala zijonga ukusebenza kwetyhubhu yesithando ngokusebenzisa iinkqubo zokufaneleka rhoqo kunye neenkqubo zokukhusela.
Ulondolozo kunye noLawulo lobomi bonke
Ukugcinwa ngokufanelekileyo kubalulekile ekwandiseni ubomi bokusebenzaIityhubhu zesithando se-SiCkunye nokugcina ukusebenza okuzinzileyo kwenkqubo ye-semiconductor.
Uninzi lwee-fabs lusebenzisa imijikelo yokuhlola ecwangcisiweyo equka:
●Ukuhlolwa komphezulu obonakalayo
●Ukubeka esweni intsingiselo yamasuntswana
●Uvavanyo lweemfaneleko zesithando somlilo
●Ukuqinisekiswa kokufana kobushushu
Iindlela zokucoca zingabandakanya ukucoca ngeekhemikhali ezimanzi okanye unyango lokubhaka olushushu kakhulu ukususa iintsalela zenkqubo.
Kwimveliso ye-semiconductor ephezulu, ukutshintshwa kweetyhubhu zokusasazwa kudla ngokusekwe kwi:
●Iiyure zenkqubo
●Ubalo lwemijikelo yobushushu
● Ukusebenza kwamasuntswana
●Imida yokufaneleka
Endaweni yokulinda umonakalo obonakalayo, ii-fabs zihlala zithatha indawo yeetyhubhu zesithando ngaphambi kokuba inkqubo yokushukuma ichaphazele isivuno se-wafer.
Njengoko iteknoloji ye-semiconductor iqhubela phambili ukuya kwiindawo ezincinci zenkqubo kunye nosetyenziso olufuna ubushushu oluphezulu, ukubaluleka kokuthembekaiityhubhu zokusasazwa kwe-silicon carbideziya kuqhubeka zikhula. Amandla azo okuxhasa ukucutshungulwa kobushushu okuzinzileyo, ungcoliseko oluphantsi, kunye nokuthembeka kwesithando somlilo ixesha elide kuzenza zibe yinxalenye ebalulekileyo kwizixhobo zanamhlanje zokwenza i-semiconductor.
Ixesha leposi: Meyi-08-2026