Kwimveliso yezixhobo ze-semiconductor zanamhlanje kunye nemveliso ye-semiconductor yesizukulwana sesithathu (njengeSilicon Carbide [SiC] kunye neGallium Nitride [GaN]), iingxoxo zoshishino zihlala zigxile kwiimashini ze-lithography ze-EUV eziphucukileyo kakhulu, ii-plasma etchers, okanye ubumsulwa begesi yangaphambili. Nangona kunjalo, ngaphakathi kwendawo ecocekileyo kakhulu, erhabaxa kakhulu, kunye nobushushu obuphezulu kwigumbi lokusabela kuhleli iqhawe elibalulekileyo elingadunyiswanga: i-Graphite susceptor.
1. Yintoni iGraphite Susceptor?
A Isixhasi segrafayithiyinxalenye yokuthwala esebenza ngobuchule obuchanekileyo eyenziwe ngegrafiti ecocekileyo kakhulu okanye ekhutshwe ngaphandle, edla ngokuba ne-disk efana ne-idiski, efakwe kwipokotho, okanye eyenziwe ngokwezifisoiijometri ezinemilinganiselo emithathu ezenzelwe ukulingana namagumbi athile okusabela.
Kwizixhobo ezifana neChemical Vapor Deposition (CVD), iMetal-Organic Chemical Vapor Deposition (MOCVD), kunye neeRapid Thermal Processing (RTP), umsebenzi ophambili weqonga lokuthwala kukubamba ngokukhuselekileyo ii-semiconductor wafers ngelixa zisebenza njenge-primary heat exchanger. Zisebenzisa iindlela zokufudumeza ezisebenzisa iGraphite susceptor induction heating mechanisms, eli candelo lifunxa ngokukhawuleza iRadio Frequency (RF) okanye amandla e-microwave electromagnetic kwaye liyiguqule ibe ngamandla afanayo obushushu, nto leyo eyenza kube lula ukulawula ubushushu obuchanekileyo kwinqanaba le-millisecond kumphezulu we-wafer.
2. Ukwakhiwa kwezinto kunye nesakhiwo seMicro: Kutheni i-Isostatic Graphite + CVD SiC Coating?
I-graphite eluhlaza engagqunywanga ayinakumelana neemeko ezishushu zeekhemikhali kunye neemfuno ezingqongqo zokucoceka kokwenziwa kwe-semiconductor. Ii-susceptors zeGraphite zanamhlanje ezisebenza kakuhle zisebenzisa inkqubo ekhethekileyo ye-dual-layer composite:
(1) I-Substrate yeGraphite eHlanjululwe kakhulu
I-substrate engundoqo yenziwe kusetyenziswa i-graphite ecinezelweyo ngokwe-isostatically. Ngokwenza ngcono i-graphite micro crystalline alignment, ifikelela kwiipropati zomzimba ze-isotropic, i-porosity ephantsi, kunye namandla aphezulu okuguquguquka koomatshini, ibonelela ngesiseko esifanelekileyo sejometri zepokotho ze-wafer ezintsonkothileyo ze-micro-machining.
(2) Ugqubuthelo oluKhuselekileyo lwe-CVD Silicon Carbide (SiC)
Ukusebenzisa iChemical Vapor Deposition, umaleko oxineneyo kakhulu we-poly-crystalline B-SiC (ngokwesiqhelo ubukhulu obuyi-10 ukuya kwi-100 um kunye nobumsulwa obuyi-99.999%) uyakhuliswa phezu kwe-graphite substrate. Olu gquma luvala ngokupheleleyo ii-micro-pores zomphezulu we-graphite, luthintela ukuchitheka kwee-particles, kwaye lubonelela ngomqobo ongenakungena kwiigesi ezirhabaxa ezifana ne-HCI, i-NH,, kunye nee-fluorinated compounds.
3. Iimpawu eziphambili zomzimba kunye neenkcukacha zezinto ezibonakalayo
Ngokusekelwe kuvavanyo oluqinileyo lwelabhoratri kunye nemilinganiselo yoshishino eqinisekisiweyo, ii-susceptors zeGraphite ezicocwe ngococeko oluphezulu zibonisa ezi parameter zilandelayo ezibalulekileyo zomzimba:
| Ipharamitha Yomzimba/Yekhemikhali | Ixabiso Eliqhelekileyo Lereferensi | Inzuzo yeNkqubo kunye neMpembelelo yokuSebenza |
| Umxholo opheleleyo wothuthu (Ubumsulwa) | < 5 ppm (Ref: XR Graphite Spec Data) | Iphelisa ungcoliseko lwesinyithi, iqinisekisa ukuba iileya ze-epitaxial azinaziphene. |
| Uxinano olubonakalayo | Isiseko: 1.85 g/cm³ | SiC: 3.21 g/cm³ | I-inertia ephantsi yobushushu ukuze kubekho amazinga okuhamba ngokukhawuleza kunye neqokobhe elingangeni manzi. |
| Amandla okuGuquka | ≥ 49 MPa (Isiseko) | ~450 MPa (SiC) | Iyamelana noxinzelelo oluphezulu lobushushu kunye nomthwalo onzima we-wafer ngaphandle kokugoba. |
| Ubushushu obuphezulu bokusebenza | > 1500°C – 1800°C | Igcina ulwakhiwo luluqilima ngexesha lokukhula kwekristale yeSiC kubushushu obuphezulu. |
| Ukuqhuba kweThermal | ~116 W/m·K (100 kcal/cm·h·°C) | Isasaza ngokukhawuleza iindawo ezishushu ezikwindawo ethile, ifikelele kwi-gradient encinci yobushushu (ΔT). |
| Ukumelana nombane | ~11 μΩ·m | Yenzelwe ukufudumeza i-Graphite susceptor induction esebenza kakuhle kakhulu. |
Iingenelo zoBunjineli obuPhambili:
1. Ukumelana noxinzelelo oluphezulu lobushushu: Iyakwazi ukumelana nemijikelo yokufudumeza nokupholisa ngokukhawuleza eqhubekayo (ngaphezulu kwe-1500°C) ngaphandle kokuqhekeka okanye ukwahlukana.
2. Ukungangeni kakuhle kweekhemikhali: Ayinakuwohloka ngokupheleleyo yi-H2, i-NH3, iigesi ze-silane, kunye neekhemikhali zokucoca eziqatha.
3. Ukulingana kweCoefficient of Thermal Expansion (CTE)Inkqubo yokubeka i-SiC ye-VET Energy ilungelelanisa indlela yokwandisa ubushushu be-SiC coating kunye ne-graphite core, nto leyo ethintela ukwaphuka kwe-coating kumaqondo obushushu aphezulu.
4. Indima kunye nezicelo kwi-Semiconductor Processing
Ii-Graphite susceptors ezithembeke kakhulu zisebenza njengezixhobo ezisisiseko ezivumelayo kumanyathelo aliqela abalulekileyo okuvelisa ii-semiconductor:
(1) I-CVD kunye ne-MOCVD Epitaxial Growth (Epi)
Kwimveliso ye-GaN LED, i-epitaxy yesixhobo samandla se-SiC, kunye nokukhula kwe-silicon wafer epi-growth, ubukhulu befilimu kunye nokufana kwe-doping kuxhomekeke kakhulu kwi-homogeneity yentsimi yobushushu. Ii-Graphite susceptors zisasaza ubushushu ngokulinganayo kwiindlela ezicwangcisiweyo ze-wafer enye okanye ezininzi ngexesha lokujikeleza, zicinezela imigca ye-wafer ebangelwa luxinzelelo lobushushu okanye yokutyibilika.
(2) Ukukhula kwekristale enye (indlela ye-PVT)
Ngexesha lokukhula kwekristale yeSilicon Carbide (SiC) kunye neSapphire ngePhysical Vapor Transport (PVT), i-susceptor ichaza i-gradient ye-thermal zone, ikhokela ngokuthe ngqo ukwakheka kwe-single-crystal ingot kunye nokunciphisa uxinano lwe-dislocation.
(3) Ukucutshungulwa kobushushu okukhawulezayo (RTP) kunye nokuNyulwa kobushushu
Isebenzisa ukufudumeza okusebenzayo kwe-Graphite susceptor induction, iqonga lenza ukuba kubekho amaxesha okuphendula ngokukhawuleza kobushushu afunekayo ukuze kufakwe i-lattice annealing emva kokufakelwa kunye nokwakheka kwe-junction.
5. Kutheni Ukhetha Amandla e-VET?
Ngenxa yeemfuno ezifunekayo zokumelana nokuhanjiswa kweenkonzo, ubumsulwa obugqithisileyo, kunye nobomi benkonzo ende,Amandla e-VETivelele njengeqabane elithembekileyo lobunjineli behlabathi:
1. Umatshini oMincinci ochanekileyo: Iziko loomatshini be-CNC ezine-axis ezininzi zivumela iipokotho ze-wafer ezintsonkothileyo, ii-micro-grooves, kunye nemijelo yegesi ye-aerodynamic eyenzelwe wena enemilinganiselo efikelela kwinqanaba le-micrometer.
2. Ukufakwa kwe-Advanced Dense CVD SiC DepositionInkqubo yethu yeCVD ezimeleyo ifezekisa uqweqwe lweSiC oluxineneyo, olupholishwayo olusebenzisa isipili olwandisa ubomi bokusebenza komjikelo wobushushu ngaphezulu kwe-30%.
3. Indawo yokucubungula ecocekileyo kakhulu: Ukucoca ngokupheleleyo kunye nokuphathwa kwegumbi lokucoca kuqinisekisa ukuba umxholo womlotha uwonke ugcinwa ngaphantsi kwe-5 ppm, okwanelisa i-semiconductor eqinileyo ye-OEMImigangatho yeFab.
4. Iindleko zoBunini eziLungileyo (CoO): I-VET Energy inika amaxesha okukhokela akhawulezileyo kunye nomlinganiselo wokhuphiswano lwamaxabiso nokusebenza, inceda abenzi beetships banciphise inkcitho efunekayo.
Ixesha lokuthumela: Agasti-14-2026